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vendoring dependencies

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ngtuna 2016-06-30 22:47:32 +07:00
parent 9bdc4cf2dd
commit 5dd2cf81bf
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1059
Godeps/Godeps.json generated Normal file
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This directory tree is generated automatically by godep.
Please do not edit.
See https://github.com/tools/godep for more information.

13
vendor/bitbucket.org/ww/goautoneg/Makefile generated vendored Normal file
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include $(GOROOT)/src/Make.inc
TARG=bitbucket.org/ww/goautoneg
GOFILES=autoneg.go
include $(GOROOT)/src/Make.pkg
format:
gofmt -w *.go
docs:
gomake clean
godoc ${TARG} > README.txt

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PACKAGE
package goautoneg
import "bitbucket.org/ww/goautoneg"
HTTP Content-Type Autonegotiation.
The functions in this package implement the behaviour specified in
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
Copyright (c) 2011, Open Knowledge Foundation Ltd.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
Neither the name of the Open Knowledge Foundation Ltd. nor the
names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
FUNCTIONS
func Negotiate(header string, alternatives []string) (content_type string)
Negotiate the most appropriate content_type given the accept header
and a list of alternatives.
func ParseAccept(header string) (accept []Accept)
Parse an Accept Header string returning a sorted list
of clauses
TYPES
type Accept struct {
Type, SubType string
Q float32
Params map[string]string
}
Structure to represent a clause in an HTTP Accept Header
SUBDIRECTORIES
.hg

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vendor/bitbucket.org/ww/goautoneg/autoneg.go generated vendored Normal file
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/*
HTTP Content-Type Autonegotiation.
The functions in this package implement the behaviour specified in
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
Copyright (c) 2011, Open Knowledge Foundation Ltd.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
Neither the name of the Open Knowledge Foundation Ltd. nor the
names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package goautoneg
import (
"sort"
"strconv"
"strings"
)
// Structure to represent a clause in an HTTP Accept Header
type Accept struct {
Type, SubType string
Q float64
Params map[string]string
}
// For internal use, so that we can use the sort interface
type accept_slice []Accept
func (accept accept_slice) Len() int {
slice := []Accept(accept)
return len(slice)
}
func (accept accept_slice) Less(i, j int) bool {
slice := []Accept(accept)
ai, aj := slice[i], slice[j]
if ai.Q > aj.Q {
return true
}
if ai.Type != "*" && aj.Type == "*" {
return true
}
if ai.SubType != "*" && aj.SubType == "*" {
return true
}
return false
}
func (accept accept_slice) Swap(i, j int) {
slice := []Accept(accept)
slice[i], slice[j] = slice[j], slice[i]
}
// Parse an Accept Header string returning a sorted list
// of clauses
func ParseAccept(header string) (accept []Accept) {
parts := strings.Split(header, ",")
accept = make([]Accept, 0, len(parts))
for _, part := range parts {
part := strings.Trim(part, " ")
a := Accept{}
a.Params = make(map[string]string)
a.Q = 1.0
mrp := strings.Split(part, ";")
media_range := mrp[0]
sp := strings.Split(media_range, "/")
a.Type = strings.Trim(sp[0], " ")
switch {
case len(sp) == 1 && a.Type == "*":
a.SubType = "*"
case len(sp) == 2:
a.SubType = strings.Trim(sp[1], " ")
default:
continue
}
if len(mrp) == 1 {
accept = append(accept, a)
continue
}
for _, param := range mrp[1:] {
sp := strings.SplitN(param, "=", 2)
if len(sp) != 2 {
continue
}
token := strings.Trim(sp[0], " ")
if token == "q" {
a.Q, _ = strconv.ParseFloat(sp[1], 32)
} else {
a.Params[token] = strings.Trim(sp[1], " ")
}
}
accept = append(accept, a)
}
slice := accept_slice(accept)
sort.Sort(slice)
return
}
// Negotiate the most appropriate content_type given the accept header
// and a list of alternatives.
func Negotiate(header string, alternatives []string) (content_type string) {
asp := make([][]string, 0, len(alternatives))
for _, ctype := range alternatives {
asp = append(asp, strings.SplitN(ctype, "/", 2))
}
for _, clause := range ParseAccept(header) {
for i, ctsp := range asp {
if clause.Type == ctsp[0] && clause.SubType == ctsp[1] {
content_type = alternatives[i]
return
}
if clause.Type == ctsp[0] && clause.SubType == "*" {
content_type = alternatives[i]
return
}
if clause.Type == "*" && clause.SubType == "*" {
content_type = alternatives[i]
return
}
}
}
return
}

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vendor/github.com/Azure/go-ansiterm/LICENSE generated vendored Normal file
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The MIT License (MIT)
Copyright (c) 2015 Microsoft Corporation
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# go-ansiterm
This is a cross platform Ansi Terminal Emulation library. It reads a stream of Ansi characters and produces the appropriate function calls. The results of the function calls are platform dependent.
For example the parser might receive "ESC, [, A" as a stream of three characters. This is the code for Cursor Up (http://www.vt100.net/docs/vt510-rm/CUU). The parser then calls the cursor up function (CUU()) on an event handler. The event handler determines what platform specific work must be done to cause the cursor to move up one position.
The parser (parser.go) is a partial implementation of this state machine (http://vt100.net/emu/vt500_parser.png). There are also two event handler implementations, one for tests (test_event_handler.go) to validate that the expected events are being produced and called, the other is a Windows implementation (winterm/win_event_handler.go).
See parser_test.go for examples exercising the state machine and generating appropriate function calls.

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package ansiterm
const LogEnv = "DEBUG_TERMINAL"
// ANSI constants
// References:
// -- http://www.ecma-international.org/publications/standards/Ecma-048.htm
// -- http://man7.org/linux/man-pages/man4/console_codes.4.html
// -- http://manpages.ubuntu.com/manpages/intrepid/man4/console_codes.4.html
// -- http://en.wikipedia.org/wiki/ANSI_escape_code
// -- http://vt100.net/emu/dec_ansi_parser
// -- http://vt100.net/emu/vt500_parser.svg
// -- http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
// -- http://www.inwap.com/pdp10/ansicode.txt
const (
// ECMA-48 Set Graphics Rendition
// Note:
// -- Constants leading with an underscore (e.g., _ANSI_xxx) are unsupported or reserved
// -- Fonts could possibly be supported via SetCurrentConsoleFontEx
// -- Windows does not expose the per-window cursor (i.e., caret) blink times
ANSI_SGR_RESET = 0
ANSI_SGR_BOLD = 1
ANSI_SGR_DIM = 2
_ANSI_SGR_ITALIC = 3
ANSI_SGR_UNDERLINE = 4
_ANSI_SGR_BLINKSLOW = 5
_ANSI_SGR_BLINKFAST = 6
ANSI_SGR_REVERSE = 7
_ANSI_SGR_INVISIBLE = 8
_ANSI_SGR_LINETHROUGH = 9
_ANSI_SGR_FONT_00 = 10
_ANSI_SGR_FONT_01 = 11
_ANSI_SGR_FONT_02 = 12
_ANSI_SGR_FONT_03 = 13
_ANSI_SGR_FONT_04 = 14
_ANSI_SGR_FONT_05 = 15
_ANSI_SGR_FONT_06 = 16
_ANSI_SGR_FONT_07 = 17
_ANSI_SGR_FONT_08 = 18
_ANSI_SGR_FONT_09 = 19
_ANSI_SGR_FONT_10 = 20
_ANSI_SGR_DOUBLEUNDERLINE = 21
ANSI_SGR_BOLD_DIM_OFF = 22
_ANSI_SGR_ITALIC_OFF = 23
ANSI_SGR_UNDERLINE_OFF = 24
_ANSI_SGR_BLINK_OFF = 25
_ANSI_SGR_RESERVED_00 = 26
ANSI_SGR_REVERSE_OFF = 27
_ANSI_SGR_INVISIBLE_OFF = 28
_ANSI_SGR_LINETHROUGH_OFF = 29
ANSI_SGR_FOREGROUND_BLACK = 30
ANSI_SGR_FOREGROUND_RED = 31
ANSI_SGR_FOREGROUND_GREEN = 32
ANSI_SGR_FOREGROUND_YELLOW = 33
ANSI_SGR_FOREGROUND_BLUE = 34
ANSI_SGR_FOREGROUND_MAGENTA = 35
ANSI_SGR_FOREGROUND_CYAN = 36
ANSI_SGR_FOREGROUND_WHITE = 37
_ANSI_SGR_RESERVED_01 = 38
ANSI_SGR_FOREGROUND_DEFAULT = 39
ANSI_SGR_BACKGROUND_BLACK = 40
ANSI_SGR_BACKGROUND_RED = 41
ANSI_SGR_BACKGROUND_GREEN = 42
ANSI_SGR_BACKGROUND_YELLOW = 43
ANSI_SGR_BACKGROUND_BLUE = 44
ANSI_SGR_BACKGROUND_MAGENTA = 45
ANSI_SGR_BACKGROUND_CYAN = 46
ANSI_SGR_BACKGROUND_WHITE = 47
_ANSI_SGR_RESERVED_02 = 48
ANSI_SGR_BACKGROUND_DEFAULT = 49
// 50 - 65: Unsupported
ANSI_MAX_CMD_LENGTH = 4096
MAX_INPUT_EVENTS = 128
DEFAULT_WIDTH = 80
DEFAULT_HEIGHT = 24
ANSI_BEL = 0x07
ANSI_BACKSPACE = 0x08
ANSI_TAB = 0x09
ANSI_LINE_FEED = 0x0A
ANSI_VERTICAL_TAB = 0x0B
ANSI_FORM_FEED = 0x0C
ANSI_CARRIAGE_RETURN = 0x0D
ANSI_ESCAPE_PRIMARY = 0x1B
ANSI_ESCAPE_SECONDARY = 0x5B
ANSI_OSC_STRING_ENTRY = 0x5D
ANSI_COMMAND_FIRST = 0x40
ANSI_COMMAND_LAST = 0x7E
DCS_ENTRY = 0x90
CSI_ENTRY = 0x9B
OSC_STRING = 0x9D
ANSI_PARAMETER_SEP = ";"
ANSI_CMD_G0 = '('
ANSI_CMD_G1 = ')'
ANSI_CMD_G2 = '*'
ANSI_CMD_G3 = '+'
ANSI_CMD_DECPNM = '>'
ANSI_CMD_DECPAM = '='
ANSI_CMD_OSC = ']'
ANSI_CMD_STR_TERM = '\\'
KEY_CONTROL_PARAM_2 = ";2"
KEY_CONTROL_PARAM_3 = ";3"
KEY_CONTROL_PARAM_4 = ";4"
KEY_CONTROL_PARAM_5 = ";5"
KEY_CONTROL_PARAM_6 = ";6"
KEY_CONTROL_PARAM_7 = ";7"
KEY_CONTROL_PARAM_8 = ";8"
KEY_ESC_CSI = "\x1B["
KEY_ESC_N = "\x1BN"
KEY_ESC_O = "\x1BO"
FILL_CHARACTER = ' '
)
func getByteRange(start byte, end byte) []byte {
bytes := make([]byte, 0, 32)
for i := start; i <= end; i++ {
bytes = append(bytes, byte(i))
}
return bytes
}
var ToGroundBytes = getToGroundBytes()
var Executors = getExecuteBytes()
// SPACE 20+A0 hex Always and everywhere a blank space
// Intermediate 20-2F hex !"#$%&'()*+,-./
var Intermeds = getByteRange(0x20, 0x2F)
// Parameters 30-3F hex 0123456789:;<=>?
// CSI Parameters 30-39, 3B hex 0123456789;
var CsiParams = getByteRange(0x30, 0x3F)
var CsiCollectables = append(getByteRange(0x30, 0x39), getByteRange(0x3B, 0x3F)...)
// Uppercase 40-5F hex @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
var UpperCase = getByteRange(0x40, 0x5F)
// Lowercase 60-7E hex `abcdefghijlkmnopqrstuvwxyz{|}~
var LowerCase = getByteRange(0x60, 0x7E)
// Alphabetics 40-7E hex (all of upper and lower case)
var Alphabetics = append(UpperCase, LowerCase...)
var Printables = getByteRange(0x20, 0x7F)
var EscapeIntermediateToGroundBytes = getByteRange(0x30, 0x7E)
var EscapeToGroundBytes = getEscapeToGroundBytes()
// See http://www.vt100.net/emu/vt500_parser.png for description of the complex
// byte ranges below
func getEscapeToGroundBytes() []byte {
escapeToGroundBytes := getByteRange(0x30, 0x4F)
escapeToGroundBytes = append(escapeToGroundBytes, getByteRange(0x51, 0x57)...)
escapeToGroundBytes = append(escapeToGroundBytes, 0x59)
escapeToGroundBytes = append(escapeToGroundBytes, 0x5A)
escapeToGroundBytes = append(escapeToGroundBytes, 0x5C)
escapeToGroundBytes = append(escapeToGroundBytes, getByteRange(0x60, 0x7E)...)
return escapeToGroundBytes
}
func getExecuteBytes() []byte {
executeBytes := getByteRange(0x00, 0x17)
executeBytes = append(executeBytes, 0x19)
executeBytes = append(executeBytes, getByteRange(0x1C, 0x1F)...)
return executeBytes
}
func getToGroundBytes() []byte {
groundBytes := []byte{0x18}
groundBytes = append(groundBytes, 0x1A)
groundBytes = append(groundBytes, getByteRange(0x80, 0x8F)...)
groundBytes = append(groundBytes, getByteRange(0x91, 0x97)...)
groundBytes = append(groundBytes, 0x99)
groundBytes = append(groundBytes, 0x9A)
groundBytes = append(groundBytes, 0x9C)
return groundBytes
}
// Delete 7F hex Always and everywhere ignored
// C1 Control 80-9F hex 32 additional control characters
// G1 Displayable A1-FE hex 94 additional displayable characters
// Special A0+FF hex Same as SPACE and DELETE

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vendor/github.com/Azure/go-ansiterm/context.go generated vendored Normal file
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package ansiterm
type AnsiContext struct {
currentChar byte
paramBuffer []byte
interBuffer []byte
}

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vendor/github.com/Azure/go-ansiterm/csi_entry_state.go generated vendored Normal file
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package ansiterm
type CsiEntryState struct {
BaseState
}
func (csiState CsiEntryState) Handle(b byte) (s State, e error) {
logger.Infof("CsiEntry::Handle %#x", b)
nextState, err := csiState.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(Alphabetics, b):
return csiState.parser.Ground, nil
case sliceContains(CsiCollectables, b):
return csiState.parser.CsiParam, nil
case sliceContains(Executors, b):
return csiState, csiState.parser.execute()
}
return csiState, nil
}
func (csiState CsiEntryState) Transition(s State) error {
logger.Infof("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name())
csiState.BaseState.Transition(s)
switch s {
case csiState.parser.Ground:
return csiState.parser.csiDispatch()
case csiState.parser.CsiParam:
switch {
case sliceContains(CsiParams, csiState.parser.context.currentChar):
csiState.parser.collectParam()
case sliceContains(Intermeds, csiState.parser.context.currentChar):
csiState.parser.collectInter()
}
}
return nil
}
func (csiState CsiEntryState) Enter() error {
csiState.parser.clear()
return nil
}

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package ansiterm
type CsiParamState struct {
BaseState
}
func (csiState CsiParamState) Handle(b byte) (s State, e error) {
logger.Infof("CsiParam::Handle %#x", b)
nextState, err := csiState.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(Alphabetics, b):
return csiState.parser.Ground, nil
case sliceContains(CsiCollectables, b):
csiState.parser.collectParam()
return csiState, nil
case sliceContains(Executors, b):
return csiState, csiState.parser.execute()
}
return csiState, nil
}
func (csiState CsiParamState) Transition(s State) error {
logger.Infof("CsiParam::Transition %s --> %s", csiState.Name(), s.Name())
csiState.BaseState.Transition(s)
switch s {
case csiState.parser.Ground:
return csiState.parser.csiDispatch()
}
return nil
}

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vendor/github.com/Azure/go-ansiterm/escape_intermediate_state.go generated vendored Normal file
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package ansiterm
type EscapeIntermediateState struct {
BaseState
}
func (escState EscapeIntermediateState) Handle(b byte) (s State, e error) {
logger.Infof("EscapeIntermediateState::Handle %#x", b)
nextState, err := escState.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(Intermeds, b):
return escState, escState.parser.collectInter()
case sliceContains(Executors, b):
return escState, escState.parser.execute()
case sliceContains(EscapeIntermediateToGroundBytes, b):
return escState.parser.Ground, nil
}
return escState, nil
}
func (escState EscapeIntermediateState) Transition(s State) error {
logger.Infof("EscapeIntermediateState::Transition %s --> %s", escState.Name(), s.Name())
escState.BaseState.Transition(s)
switch s {
case escState.parser.Ground:
return escState.parser.escDispatch()
}
return nil
}

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vendor/github.com/Azure/go-ansiterm/escape_state.go generated vendored Normal file
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package ansiterm
type EscapeState struct {
BaseState
}
func (escState EscapeState) Handle(b byte) (s State, e error) {
logger.Infof("EscapeState::Handle %#x", b)
nextState, err := escState.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case b == ANSI_ESCAPE_SECONDARY:
return escState.parser.CsiEntry, nil
case b == ANSI_OSC_STRING_ENTRY:
return escState.parser.OscString, nil
case sliceContains(Executors, b):
return escState, escState.parser.execute()
case sliceContains(EscapeToGroundBytes, b):
return escState.parser.Ground, nil
case sliceContains(Intermeds, b):
return escState.parser.EscapeIntermediate, nil
}
return escState, nil
}
func (escState EscapeState) Transition(s State) error {
logger.Infof("Escape::Transition %s --> %s", escState.Name(), s.Name())
escState.BaseState.Transition(s)
switch s {
case escState.parser.Ground:
return escState.parser.escDispatch()
case escState.parser.EscapeIntermediate:
return escState.parser.collectInter()
}
return nil
}
func (escState EscapeState) Enter() error {
escState.parser.clear()
return nil
}

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vendor/github.com/Azure/go-ansiterm/event_handler.go generated vendored Normal file
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package ansiterm
type AnsiEventHandler interface {
// Print
Print(b byte) error
// Execute C0 commands
Execute(b byte) error
// CUrsor Up
CUU(int) error
// CUrsor Down
CUD(int) error
// CUrsor Forward
CUF(int) error
// CUrsor Backward
CUB(int) error
// Cursor to Next Line
CNL(int) error
// Cursor to Previous Line
CPL(int) error
// Cursor Horizontal position Absolute
CHA(int) error
// Vertical line Position Absolute
VPA(int) error
// CUrsor Position
CUP(int, int) error
// Horizontal and Vertical Position (depends on PUM)
HVP(int, int) error
// Text Cursor Enable Mode
DECTCEM(bool) error
// Origin Mode
DECOM(bool) error
// 132 Column Mode
DECCOLM(bool) error
// Erase in Display
ED(int) error
// Erase in Line
EL(int) error
// Insert Line
IL(int) error
// Delete Line
DL(int) error
// Insert Character
ICH(int) error
// Delete Character
DCH(int) error
// Set Graphics Rendition
SGR([]int) error
// Pan Down
SU(int) error
// Pan Up
SD(int) error
// Device Attributes
DA([]string) error
// Set Top and Bottom Margins
DECSTBM(int, int) error
// Index
IND() error
// Reverse Index
RI() error
// Flush updates from previous commands
Flush() error
}

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vendor/github.com/Azure/go-ansiterm/ground_state.go generated vendored Normal file
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package ansiterm
type GroundState struct {
BaseState
}
func (gs GroundState) Handle(b byte) (s State, e error) {
gs.parser.context.currentChar = b
nextState, err := gs.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(Printables, b):
return gs, gs.parser.print()
case sliceContains(Executors, b):
return gs, gs.parser.execute()
}
return gs, nil
}

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vendor/github.com/Azure/go-ansiterm/osc_string_state.go generated vendored Normal file
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package ansiterm
type OscStringState struct {
BaseState
}
func (oscState OscStringState) Handle(b byte) (s State, e error) {
logger.Infof("OscString::Handle %#x", b)
nextState, err := oscState.BaseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case isOscStringTerminator(b):
return oscState.parser.Ground, nil
}
return oscState, nil
}
// See below for OSC string terminators for linux
// http://man7.org/linux/man-pages/man4/console_codes.4.html
func isOscStringTerminator(b byte) bool {
if b == ANSI_BEL || b == 0x5C {
return true
}
return false
}

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vendor/github.com/Azure/go-ansiterm/parser.go generated vendored Normal file
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package ansiterm
import (
"errors"
"fmt"
"io/ioutil"
"os"
"github.com/Sirupsen/logrus"
)
var logger *logrus.Logger
type AnsiParser struct {
currState State
eventHandler AnsiEventHandler
context *AnsiContext
CsiEntry State
CsiParam State
DcsEntry State
Escape State
EscapeIntermediate State
Error State
Ground State
OscString State
stateMap []State
}
func CreateParser(initialState string, evtHandler AnsiEventHandler) *AnsiParser {
logFile := ioutil.Discard
if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
logFile, _ = os.Create("ansiParser.log")
}
logger = &logrus.Logger{
Out: logFile,
Formatter: new(logrus.TextFormatter),
Level: logrus.InfoLevel,
}
parser := &AnsiParser{
eventHandler: evtHandler,
context: &AnsiContext{},
}
parser.CsiEntry = CsiEntryState{BaseState{name: "CsiEntry", parser: parser}}
parser.CsiParam = CsiParamState{BaseState{name: "CsiParam", parser: parser}}
parser.DcsEntry = DcsEntryState{BaseState{name: "DcsEntry", parser: parser}}
parser.Escape = EscapeState{BaseState{name: "Escape", parser: parser}}
parser.EscapeIntermediate = EscapeIntermediateState{BaseState{name: "EscapeIntermediate", parser: parser}}
parser.Error = ErrorState{BaseState{name: "Error", parser: parser}}
parser.Ground = GroundState{BaseState{name: "Ground", parser: parser}}
parser.OscString = OscStringState{BaseState{name: "OscString", parser: parser}}
parser.stateMap = []State{
parser.CsiEntry,
parser.CsiParam,
parser.DcsEntry,
parser.Escape,
parser.EscapeIntermediate,
parser.Error,
parser.Ground,
parser.OscString,
}
parser.currState = getState(initialState, parser.stateMap)
logger.Infof("CreateParser: parser %p", parser)
return parser
}
func getState(name string, states []State) State {
for _, el := range states {
if el.Name() == name {
return el
}
}
return nil
}
func (ap *AnsiParser) Parse(bytes []byte) (int, error) {
for i, b := range bytes {
if err := ap.handle(b); err != nil {
return i, err
}
}
return len(bytes), ap.eventHandler.Flush()
}
func (ap *AnsiParser) handle(b byte) error {
ap.context.currentChar = b
newState, err := ap.currState.Handle(b)
if err != nil {
return err
}
if newState == nil {
logger.Warning("newState is nil")
return errors.New(fmt.Sprintf("New state of 'nil' is invalid."))
}
if newState != ap.currState {
if err := ap.changeState(newState); err != nil {
return err
}
}
return nil
}
func (ap *AnsiParser) changeState(newState State) error {
logger.Infof("ChangeState %s --> %s", ap.currState.Name(), newState.Name())
// Exit old state
if err := ap.currState.Exit(); err != nil {
logger.Infof("Exit state '%s' failed with : '%v'", ap.currState.Name(), err)
return err
}
// Perform transition action
if err := ap.currState.Transition(newState); err != nil {
logger.Infof("Transition from '%s' to '%s' failed with: '%v'", ap.currState.Name(), newState.Name, err)
return err
}
// Enter new state
if err := newState.Enter(); err != nil {
logger.Infof("Enter state '%s' failed with: '%v'", newState.Name(), err)
return err
}
ap.currState = newState
return nil
}

103
vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go generated vendored Normal file
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package ansiterm
import (
"strconv"
)
func parseParams(bytes []byte) ([]string, error) {
paramBuff := make([]byte, 0, 0)
params := []string{}
for _, v := range bytes {
if v == ';' {
if len(paramBuff) > 0 {
// Completed parameter, append it to the list
s := string(paramBuff)
params = append(params, s)
paramBuff = make([]byte, 0, 0)
}
} else {
paramBuff = append(paramBuff, v)
}
}
// Last parameter may not be terminated with ';'
if len(paramBuff) > 0 {
s := string(paramBuff)
params = append(params, s)
}
logger.Infof("Parsed params: %v with length: %d", params, len(params))
return params, nil
}
func parseCmd(context AnsiContext) (string, error) {
return string(context.currentChar), nil
}
func getInt(params []string, dflt int) int {
i := getInts(params, 1, dflt)[0]
logger.Infof("getInt: %v", i)
return i
}
func getInts(params []string, minCount int, dflt int) []int {
ints := []int{}
for _, v := range params {
i, _ := strconv.Atoi(v)
// Zero is mapped to the default value in VT100.
if i == 0 {
i = dflt
}
ints = append(ints, i)
}
if len(ints) < minCount {
remaining := minCount - len(ints)
for i := 0; i < remaining; i++ {
ints = append(ints, dflt)
}
}
logger.Infof("getInts: %v", ints)
return ints
}
func (ap *AnsiParser) modeDispatch(param string, set bool) error {
switch param {
case "?3":
return ap.eventHandler.DECCOLM(set)
case "?6":
return ap.eventHandler.DECOM(set)
case "?25":
return ap.eventHandler.DECTCEM(set)
}
return nil
}
func (ap *AnsiParser) hDispatch(params []string) error {
if len(params) == 1 {
return ap.modeDispatch(params[0], true)
}
return nil
}
func (ap *AnsiParser) lDispatch(params []string) error {
if len(params) == 1 {
return ap.modeDispatch(params[0], false)
}
return nil
}
func getEraseParam(params []string) int {
param := getInt(params, 0)
if param < 0 || 3 < param {
param = 0
}
return param
}

122
vendor/github.com/Azure/go-ansiterm/parser_actions.go generated vendored Normal file
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package ansiterm
import (
"fmt"
)
func (ap *AnsiParser) collectParam() error {
currChar := ap.context.currentChar
logger.Infof("collectParam %#x", currChar)
ap.context.paramBuffer = append(ap.context.paramBuffer, currChar)
return nil
}
func (ap *AnsiParser) collectInter() error {
currChar := ap.context.currentChar
logger.Infof("collectInter %#x", currChar)
ap.context.paramBuffer = append(ap.context.interBuffer, currChar)
return nil
}
func (ap *AnsiParser) escDispatch() error {
cmd, _ := parseCmd(*ap.context)
intermeds := ap.context.interBuffer
logger.Infof("escDispatch currentChar: %#x", ap.context.currentChar)
logger.Infof("escDispatch: %v(%v)", cmd, intermeds)
switch cmd {
case "D": // IND
return ap.eventHandler.IND()
case "E": // NEL, equivalent to CRLF
err := ap.eventHandler.Execute(ANSI_CARRIAGE_RETURN)
if err == nil {
err = ap.eventHandler.Execute(ANSI_LINE_FEED)
}
return err
case "M": // RI
return ap.eventHandler.RI()
}
return nil
}
func (ap *AnsiParser) csiDispatch() error {
cmd, _ := parseCmd(*ap.context)
params, _ := parseParams(ap.context.paramBuffer)
logger.Infof("csiDispatch: %v(%v)", cmd, params)
switch cmd {
case "@":
return ap.eventHandler.ICH(getInt(params, 1))
case "A":
return ap.eventHandler.CUU(getInt(params, 1))
case "B":
return ap.eventHandler.CUD(getInt(params, 1))
case "C":
return ap.eventHandler.CUF(getInt(params, 1))
case "D":
return ap.eventHandler.CUB(getInt(params, 1))
case "E":
return ap.eventHandler.CNL(getInt(params, 1))
case "F":
return ap.eventHandler.CPL(getInt(params, 1))
case "G":
return ap.eventHandler.CHA(getInt(params, 1))
case "H":
ints := getInts(params, 2, 1)
x, y := ints[0], ints[1]
return ap.eventHandler.CUP(x, y)
case "J":
param := getEraseParam(params)
return ap.eventHandler.ED(param)
case "K":
param := getEraseParam(params)
return ap.eventHandler.EL(param)
case "L":
return ap.eventHandler.IL(getInt(params, 1))
case "M":
return ap.eventHandler.DL(getInt(params, 1))
case "P":
return ap.eventHandler.DCH(getInt(params, 1))
case "S":
return ap.eventHandler.SU(getInt(params, 1))
case "T":
return ap.eventHandler.SD(getInt(params, 1))
case "c":
return ap.eventHandler.DA(params)
case "d":
return ap.eventHandler.VPA(getInt(params, 1))
case "f":
ints := getInts(params, 2, 1)
x, y := ints[0], ints[1]
return ap.eventHandler.HVP(x, y)
case "h":
return ap.hDispatch(params)
case "l":
return ap.lDispatch(params)
case "m":
return ap.eventHandler.SGR(getInts(params, 1, 0))
case "r":
ints := getInts(params, 2, 1)
top, bottom := ints[0], ints[1]
return ap.eventHandler.DECSTBM(top, bottom)
default:
logger.Errorf(fmt.Sprintf("Unsupported CSI command: '%s', with full context: %v", cmd, ap.context))
return nil
}
}
func (ap *AnsiParser) print() error {
return ap.eventHandler.Print(ap.context.currentChar)
}
func (ap *AnsiParser) clear() error {
ap.context = &AnsiContext{}
return nil
}
func (ap *AnsiParser) execute() error {
return ap.eventHandler.Execute(ap.context.currentChar)
}

114
vendor/github.com/Azure/go-ansiterm/parser_test_helpers.go generated vendored Normal file
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package ansiterm
import (
"fmt"
"testing"
)
func getStateNames() []string {
parser, _ := createTestParser("Ground")
stateNames := []string{}
for _, state := range parser.stateMap {
stateNames = append(stateNames, state.Name())
}
return stateNames
}
func stateTransitionHelper(t *testing.T, start string, end string, bytes []byte) {
for _, b := range bytes {
bytes := []byte{byte(b)}
parser, _ := createTestParser(start)
parser.Parse(bytes)
validateState(t, parser.currState, end)
}
}
func anyToXHelper(t *testing.T, bytes []byte, expectedState string) {
for _, s := range getStateNames() {
stateTransitionHelper(t, s, expectedState, bytes)
}
}
func funcCallParamHelper(t *testing.T, bytes []byte, start string, expected string, expectedCalls []string) {
parser, evtHandler := createTestParser(start)
parser.Parse(bytes)
validateState(t, parser.currState, expected)
validateFuncCalls(t, evtHandler.FunctionCalls, expectedCalls)
}
func parseParamsHelper(t *testing.T, bytes []byte, expectedParams []string) {
params, err := parseParams(bytes)
if err != nil {
t.Errorf("Parameter parse error: %v", err)
return
}
if len(params) != len(expectedParams) {
t.Errorf("Parsed parameters: %v", params)
t.Errorf("Expected parameters: %v", expectedParams)
t.Errorf("Parameter length failure: %d != %d", len(params), len(expectedParams))
return
}
for i, v := range expectedParams {
if v != params[i] {
t.Errorf("Parsed parameters: %v", params)
t.Errorf("Expected parameters: %v", expectedParams)
t.Errorf("Parameter parse failure: %s != %s at position %d", v, params[i], i)
}
}
}
func cursorSingleParamHelper(t *testing.T, command byte, funcName string) {
funcCallParamHelper(t, []byte{command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'0', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'2', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2])", funcName)})
funcCallParamHelper(t, []byte{'2', '3', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([23])", funcName)})
funcCallParamHelper(t, []byte{'2', ';', '3', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2])", funcName)})
funcCallParamHelper(t, []byte{'2', ';', '3', ';', '4', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2])", funcName)})
}
func cursorTwoParamHelper(t *testing.T, command byte, funcName string) {
funcCallParamHelper(t, []byte{command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1 1])", funcName)})
funcCallParamHelper(t, []byte{'0', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1 1])", funcName)})
funcCallParamHelper(t, []byte{'2', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2 1])", funcName)})
funcCallParamHelper(t, []byte{'2', '3', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([23 1])", funcName)})
funcCallParamHelper(t, []byte{'2', ';', '3', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2 3])", funcName)})
funcCallParamHelper(t, []byte{'2', ';', '3', ';', '4', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2 3])", funcName)})
}
func eraseHelper(t *testing.T, command byte, funcName string) {
funcCallParamHelper(t, []byte{command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([0])", funcName)})
funcCallParamHelper(t, []byte{'0', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([0])", funcName)})
funcCallParamHelper(t, []byte{'1', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'2', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([2])", funcName)})
funcCallParamHelper(t, []byte{'3', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([3])", funcName)})
funcCallParamHelper(t, []byte{'4', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([0])", funcName)})
funcCallParamHelper(t, []byte{'1', ';', '2', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
}
func scrollHelper(t *testing.T, command byte, funcName string) {
funcCallParamHelper(t, []byte{command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'0', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'1', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([1])", funcName)})
funcCallParamHelper(t, []byte{'5', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([5])", funcName)})
funcCallParamHelper(t, []byte{'4', ';', '6', command}, "CsiEntry", "Ground", []string{fmt.Sprintf("%s([4])", funcName)})
}
func clearOnStateChangeHelper(t *testing.T, start string, end string, bytes []byte) {
p, _ := createTestParser(start)
fillContext(p.context)
p.Parse(bytes)
validateState(t, p.currState, end)
validateEmptyContext(t, p.context)
}
func c0Helper(t *testing.T, bytes []byte, expectedState string, expectedCalls []string) {
parser, evtHandler := createTestParser("Ground")
parser.Parse(bytes)
validateState(t, parser.currState, expectedState)
validateFuncCalls(t, evtHandler.FunctionCalls, expectedCalls)
}

66
vendor/github.com/Azure/go-ansiterm/parser_test_utilities.go generated vendored Normal file
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package ansiterm
import (
"testing"
)
func createTestParser(s string) (*AnsiParser, *TestAnsiEventHandler) {
evtHandler := CreateTestAnsiEventHandler()
parser := CreateParser(s, evtHandler)
return parser, evtHandler
}
func validateState(t *testing.T, actualState State, expectedStateName string) {
actualName := "Nil"
if actualState != nil {
actualName = actualState.Name()
}
if actualName != expectedStateName {
t.Errorf("Invalid State: '%s' != '%s'", actualName, expectedStateName)
}
}
func validateFuncCalls(t *testing.T, actualCalls []string, expectedCalls []string) {
actualCount := len(actualCalls)
expectedCount := len(expectedCalls)
if actualCount != expectedCount {
t.Errorf("Actual calls: %v", actualCalls)
t.Errorf("Expected calls: %v", expectedCalls)
t.Errorf("Call count error: %d != %d", actualCount, expectedCount)
return
}
for i, v := range actualCalls {
if v != expectedCalls[i] {
t.Errorf("Actual calls: %v", actualCalls)
t.Errorf("Expected calls: %v", expectedCalls)
t.Errorf("Mismatched calls: %s != %s with lengths %d and %d", v, expectedCalls[i], len(v), len(expectedCalls[i]))
}
}
}
func fillContext(context *AnsiContext) {
context.currentChar = 'A'
context.paramBuffer = []byte{'C', 'D', 'E'}
context.interBuffer = []byte{'F', 'G', 'H'}
}
func validateEmptyContext(t *testing.T, context *AnsiContext) {
var expectedCurrChar byte = 0x0
if context.currentChar != expectedCurrChar {
t.Errorf("Currentchar mismatch '%#x' != '%#x'", context.currentChar, expectedCurrChar)
}
if len(context.paramBuffer) != 0 {
t.Errorf("Non-empty parameter buffer: %v", context.paramBuffer)
}
if len(context.paramBuffer) != 0 {
t.Errorf("Non-empty intermediate buffer: %v", context.interBuffer)
}
}

71
vendor/github.com/Azure/go-ansiterm/states.go generated vendored Normal file
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package ansiterm
type StateId int
type State interface {
Enter() error
Exit() error
Handle(byte) (State, error)
Name() string
Transition(State) error
}
type BaseState struct {
name string
parser *AnsiParser
}
func (base BaseState) Enter() error {
return nil
}
func (base BaseState) Exit() error {
return nil
}
func (base BaseState) Handle(b byte) (s State, e error) {
switch {
case b == CSI_ENTRY:
return base.parser.CsiEntry, nil
case b == DCS_ENTRY:
return base.parser.DcsEntry, nil
case b == ANSI_ESCAPE_PRIMARY:
return base.parser.Escape, nil
case b == OSC_STRING:
return base.parser.OscString, nil
case sliceContains(ToGroundBytes, b):
return base.parser.Ground, nil
}
return nil, nil
}
func (base BaseState) Name() string {
return base.name
}
func (base BaseState) Transition(s State) error {
if s == base.parser.Ground {
execBytes := []byte{0x18}
execBytes = append(execBytes, 0x1A)
execBytes = append(execBytes, getByteRange(0x80, 0x8F)...)
execBytes = append(execBytes, getByteRange(0x91, 0x97)...)
execBytes = append(execBytes, 0x99)
execBytes = append(execBytes, 0x9A)
if sliceContains(execBytes, base.parser.context.currentChar) {
return base.parser.execute()
}
}
return nil
}
type DcsEntryState struct {
BaseState
}
type ErrorState struct {
BaseState
}

173
vendor/github.com/Azure/go-ansiterm/test_event_handler.go generated vendored Normal file
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package ansiterm
import (
"fmt"
"strconv"
)
type TestAnsiEventHandler struct {
FunctionCalls []string
}
func CreateTestAnsiEventHandler() *TestAnsiEventHandler {
evtHandler := TestAnsiEventHandler{}
evtHandler.FunctionCalls = make([]string, 0)
return &evtHandler
}
func (h *TestAnsiEventHandler) recordCall(call string, params []string) {
s := fmt.Sprintf("%s(%v)", call, params)
h.FunctionCalls = append(h.FunctionCalls, s)
}
func (h *TestAnsiEventHandler) Print(b byte) error {
h.recordCall("Print", []string{string(b)})
return nil
}
func (h *TestAnsiEventHandler) Execute(b byte) error {
h.recordCall("Execute", []string{string(b)})
return nil
}
func (h *TestAnsiEventHandler) CUU(param int) error {
h.recordCall("CUU", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CUD(param int) error {
h.recordCall("CUD", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CUF(param int) error {
h.recordCall("CUF", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CUB(param int) error {
h.recordCall("CUB", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CNL(param int) error {
h.recordCall("CNL", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CPL(param int) error {
h.recordCall("CPL", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CHA(param int) error {
h.recordCall("CHA", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) VPA(param int) error {
h.recordCall("VPA", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) CUP(x int, y int) error {
xS, yS := strconv.Itoa(x), strconv.Itoa(y)
h.recordCall("CUP", []string{xS, yS})
return nil
}
func (h *TestAnsiEventHandler) HVP(x int, y int) error {
xS, yS := strconv.Itoa(x), strconv.Itoa(y)
h.recordCall("HVP", []string{xS, yS})
return nil
}
func (h *TestAnsiEventHandler) DECTCEM(visible bool) error {
h.recordCall("DECTCEM", []string{strconv.FormatBool(visible)})
return nil
}
func (h *TestAnsiEventHandler) DECOM(visible bool) error {
h.recordCall("DECOM", []string{strconv.FormatBool(visible)})
return nil
}
func (h *TestAnsiEventHandler) DECCOLM(use132 bool) error {
h.recordCall("DECOLM", []string{strconv.FormatBool(use132)})
return nil
}
func (h *TestAnsiEventHandler) ED(param int) error {
h.recordCall("ED", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) EL(param int) error {
h.recordCall("EL", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) IL(param int) error {
h.recordCall("IL", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) DL(param int) error {
h.recordCall("DL", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) ICH(param int) error {
h.recordCall("ICH", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) DCH(param int) error {
h.recordCall("DCH", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) SGR(params []int) error {
strings := []string{}
for _, v := range params {
strings = append(strings, strconv.Itoa(v))
}
h.recordCall("SGR", strings)
return nil
}
func (h *TestAnsiEventHandler) SU(param int) error {
h.recordCall("SU", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) SD(param int) error {
h.recordCall("SD", []string{strconv.Itoa(param)})
return nil
}
func (h *TestAnsiEventHandler) DA(params []string) error {
h.recordCall("DA", params)
return nil
}
func (h *TestAnsiEventHandler) DECSTBM(top int, bottom int) error {
topS, bottomS := strconv.Itoa(top), strconv.Itoa(bottom)
h.recordCall("DECSTBM", []string{topS, bottomS})
return nil
}
func (h *TestAnsiEventHandler) RI() error {
h.recordCall("RI", nil)
return nil
}
func (h *TestAnsiEventHandler) IND() error {
h.recordCall("IND", nil)
return nil
}
func (h *TestAnsiEventHandler) Flush() error {
return nil
}

21
vendor/github.com/Azure/go-ansiterm/utilities.go generated vendored Normal file
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@ -0,0 +1,21 @@
package ansiterm
import (
"strconv"
)
func sliceContains(bytes []byte, b byte) bool {
for _, v := range bytes {
if v == b {
return true
}
}
return false
}
func convertBytesToInteger(bytes []byte) int {
s := string(bytes)
i, _ := strconv.Atoi(s)
return i
}

182
vendor/github.com/Azure/go-ansiterm/winterm/ansi.go generated vendored Normal file
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@ -0,0 +1,182 @@
// +build windows
package winterm
import (
"fmt"
"os"
"strconv"
"strings"
"syscall"
. "github.com/Azure/go-ansiterm"
)
// Windows keyboard constants
// See https://msdn.microsoft.com/en-us/library/windows/desktop/dd375731(v=vs.85).aspx.
const (
VK_PRIOR = 0x21 // PAGE UP key
VK_NEXT = 0x22 // PAGE DOWN key
VK_END = 0x23 // END key
VK_HOME = 0x24 // HOME key
VK_LEFT = 0x25 // LEFT ARROW key
VK_UP = 0x26 // UP ARROW key
VK_RIGHT = 0x27 // RIGHT ARROW key
VK_DOWN = 0x28 // DOWN ARROW key
VK_SELECT = 0x29 // SELECT key
VK_PRINT = 0x2A // PRINT key
VK_EXECUTE = 0x2B // EXECUTE key
VK_SNAPSHOT = 0x2C // PRINT SCREEN key
VK_INSERT = 0x2D // INS key
VK_DELETE = 0x2E // DEL key
VK_HELP = 0x2F // HELP key
VK_F1 = 0x70 // F1 key
VK_F2 = 0x71 // F2 key
VK_F3 = 0x72 // F3 key
VK_F4 = 0x73 // F4 key
VK_F5 = 0x74 // F5 key
VK_F6 = 0x75 // F6 key
VK_F7 = 0x76 // F7 key
VK_F8 = 0x77 // F8 key
VK_F9 = 0x78 // F9 key
VK_F10 = 0x79 // F10 key
VK_F11 = 0x7A // F11 key
VK_F12 = 0x7B // F12 key
RIGHT_ALT_PRESSED = 0x0001
LEFT_ALT_PRESSED = 0x0002
RIGHT_CTRL_PRESSED = 0x0004
LEFT_CTRL_PRESSED = 0x0008
SHIFT_PRESSED = 0x0010
NUMLOCK_ON = 0x0020
SCROLLLOCK_ON = 0x0040
CAPSLOCK_ON = 0x0080
ENHANCED_KEY = 0x0100
)
type ansiCommand struct {
CommandBytes []byte
Command string
Parameters []string
IsSpecial bool
}
func newAnsiCommand(command []byte) *ansiCommand {
if isCharacterSelectionCmdChar(command[1]) {
// Is Character Set Selection commands
return &ansiCommand{
CommandBytes: command,
Command: string(command),
IsSpecial: true,
}
}
// last char is command character
lastCharIndex := len(command) - 1
ac := &ansiCommand{
CommandBytes: command,
Command: string(command[lastCharIndex]),
IsSpecial: false,
}
// more than a single escape
if lastCharIndex != 0 {
start := 1
// skip if double char escape sequence
if command[0] == ANSI_ESCAPE_PRIMARY && command[1] == ANSI_ESCAPE_SECONDARY {
start++
}
// convert this to GetNextParam method
ac.Parameters = strings.Split(string(command[start:lastCharIndex]), ANSI_PARAMETER_SEP)
}
return ac
}
func (ac *ansiCommand) paramAsSHORT(index int, defaultValue SHORT) SHORT {
if index < 0 || index >= len(ac.Parameters) {
return defaultValue
}
param, err := strconv.ParseInt(ac.Parameters[index], 10, 16)
if err != nil {
return defaultValue
}
return SHORT(param)
}
func (ac *ansiCommand) String() string {
return fmt.Sprintf("0x%v \"%v\" (\"%v\")",
bytesToHex(ac.CommandBytes),
ac.Command,
strings.Join(ac.Parameters, "\",\""))
}
// isAnsiCommandChar returns true if the passed byte falls within the range of ANSI commands.
// See http://manpages.ubuntu.com/manpages/intrepid/man4/console_codes.4.html.
func isAnsiCommandChar(b byte) bool {
switch {
case ANSI_COMMAND_FIRST <= b && b <= ANSI_COMMAND_LAST && b != ANSI_ESCAPE_SECONDARY:
return true
case b == ANSI_CMD_G1 || b == ANSI_CMD_OSC || b == ANSI_CMD_DECPAM || b == ANSI_CMD_DECPNM:
// non-CSI escape sequence terminator
return true
case b == ANSI_CMD_STR_TERM || b == ANSI_BEL:
// String escape sequence terminator
return true
}
return false
}
func isXtermOscSequence(command []byte, current byte) bool {
return (len(command) >= 2 && command[0] == ANSI_ESCAPE_PRIMARY && command[1] == ANSI_CMD_OSC && current != ANSI_BEL)
}
func isCharacterSelectionCmdChar(b byte) bool {
return (b == ANSI_CMD_G0 || b == ANSI_CMD_G1 || b == ANSI_CMD_G2 || b == ANSI_CMD_G3)
}
// bytesToHex converts a slice of bytes to a human-readable string.
func bytesToHex(b []byte) string {
hex := make([]string, len(b))
for i, ch := range b {
hex[i] = fmt.Sprintf("%X", ch)
}
return strings.Join(hex, "")
}
// ensureInRange adjusts the passed value, if necessary, to ensure it is within
// the passed min / max range.
func ensureInRange(n SHORT, min SHORT, max SHORT) SHORT {
if n < min {
return min
} else if n > max {
return max
} else {
return n
}
}
func GetStdFile(nFile int) (*os.File, uintptr) {
var file *os.File
switch nFile {
case syscall.STD_INPUT_HANDLE:
file = os.Stdin
case syscall.STD_OUTPUT_HANDLE:
file = os.Stdout
case syscall.STD_ERROR_HANDLE:
file = os.Stderr
default:
panic(fmt.Errorf("Invalid standard handle identifier: %v", nFile))
}
fd, err := syscall.GetStdHandle(nFile)
if err != nil {
panic(fmt.Errorf("Invalid standard handle indentifier: %v -- %v", nFile, err))
}
return file, uintptr(fd)
}

329
vendor/github.com/Azure/go-ansiterm/winterm/api.go generated vendored Normal file
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// +build windows
package winterm
import (
"fmt"
"syscall"
"unsafe"
)
//===========================================================================================================
// IMPORTANT NOTE:
//
// The methods below make extensive use of the "unsafe" package to obtain the required pointers.
// Beginning in Go 1.3, the garbage collector may release local variables (e.g., incoming arguments, stack
// variables) the pointers reference *before* the API completes.
//
// As a result, in those cases, the code must hint that the variables remain in active by invoking the
// dummy method "use" (see below). Newer versions of Go are planned to change the mechanism to no longer
// require unsafe pointers.
//
// If you add or modify methods, ENSURE protection of local variables through the "use" builtin to inform
// the garbage collector the variables remain in use if:
//
// -- The value is not a pointer (e.g., int32, struct)
// -- The value is not referenced by the method after passing the pointer to Windows
//
// See http://golang.org/doc/go1.3.
//===========================================================================================================
var (
kernel32DLL = syscall.NewLazyDLL("kernel32.dll")
getConsoleCursorInfoProc = kernel32DLL.NewProc("GetConsoleCursorInfo")
setConsoleCursorInfoProc = kernel32DLL.NewProc("SetConsoleCursorInfo")
setConsoleCursorPositionProc = kernel32DLL.NewProc("SetConsoleCursorPosition")
setConsoleModeProc = kernel32DLL.NewProc("SetConsoleMode")
getConsoleScreenBufferInfoProc = kernel32DLL.NewProc("GetConsoleScreenBufferInfo")
setConsoleScreenBufferSizeProc = kernel32DLL.NewProc("SetConsoleScreenBufferSize")
scrollConsoleScreenBufferProc = kernel32DLL.NewProc("ScrollConsoleScreenBufferA")
setConsoleTextAttributeProc = kernel32DLL.NewProc("SetConsoleTextAttribute")
setConsoleWindowInfoProc = kernel32DLL.NewProc("SetConsoleWindowInfo")
writeConsoleOutputProc = kernel32DLL.NewProc("WriteConsoleOutputW")
readConsoleInputProc = kernel32DLL.NewProc("ReadConsoleInputW")
waitForSingleObjectProc = kernel32DLL.NewProc("WaitForSingleObject")
)
// Windows Console constants
const (
// Console modes
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx.
ENABLE_PROCESSED_INPUT = 0x0001
ENABLE_LINE_INPUT = 0x0002
ENABLE_ECHO_INPUT = 0x0004
ENABLE_WINDOW_INPUT = 0x0008
ENABLE_MOUSE_INPUT = 0x0010
ENABLE_INSERT_MODE = 0x0020
ENABLE_QUICK_EDIT_MODE = 0x0040
ENABLE_EXTENDED_FLAGS = 0x0080
ENABLE_PROCESSED_OUTPUT = 0x0001
ENABLE_WRAP_AT_EOL_OUTPUT = 0x0002
// Character attributes
// Note:
// -- The attributes are combined to produce various colors (e.g., Blue + Green will create Cyan).
// Clearing all foreground or background colors results in black; setting all creates white.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682088(v=vs.85).aspx#_win32_character_attributes.
FOREGROUND_BLUE WORD = 0x0001
FOREGROUND_GREEN WORD = 0x0002
FOREGROUND_RED WORD = 0x0004
FOREGROUND_INTENSITY WORD = 0x0008
FOREGROUND_MASK WORD = 0x000F
BACKGROUND_BLUE WORD = 0x0010
BACKGROUND_GREEN WORD = 0x0020
BACKGROUND_RED WORD = 0x0040
BACKGROUND_INTENSITY WORD = 0x0080
BACKGROUND_MASK WORD = 0x00F0
COMMON_LVB_MASK WORD = 0xFF00
COMMON_LVB_REVERSE_VIDEO WORD = 0x4000
COMMON_LVB_UNDERSCORE WORD = 0x8000
// Input event types
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
KEY_EVENT = 0x0001
MOUSE_EVENT = 0x0002
WINDOW_BUFFER_SIZE_EVENT = 0x0004
MENU_EVENT = 0x0008
FOCUS_EVENT = 0x0010
// WaitForSingleObject return codes
WAIT_ABANDONED = 0x00000080
WAIT_FAILED = 0xFFFFFFFF
WAIT_SIGNALED = 0x0000000
WAIT_TIMEOUT = 0x00000102
// WaitForSingleObject wait duration
WAIT_INFINITE = 0xFFFFFFFF
WAIT_ONE_SECOND = 1000
WAIT_HALF_SECOND = 500
WAIT_QUARTER_SECOND = 250
)
// Windows API Console types
// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/aa383751(v=vs.85).aspx for core types (e.g., SHORT)
// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682101(v=vs.85).aspx for Console specific types (e.g., COORD)
// -- See https://msdn.microsoft.com/en-us/library/aa296569(v=vs.60).aspx for comments on alignment
type (
SHORT int16
BOOL int32
WORD uint16
WCHAR uint16
DWORD uint32
CHAR_INFO struct {
UnicodeChar WCHAR
Attributes WORD
}
CONSOLE_CURSOR_INFO struct {
Size DWORD
Visible BOOL
}
CONSOLE_SCREEN_BUFFER_INFO struct {
Size COORD
CursorPosition COORD
Attributes WORD
Window SMALL_RECT
MaximumWindowSize COORD
}
COORD struct {
X SHORT
Y SHORT
}
SMALL_RECT struct {
Left SHORT
Top SHORT
Right SHORT
Bottom SHORT
}
// INPUT_RECORD is a C/C++ union of which KEY_EVENT_RECORD is one case, it is also the largest
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
INPUT_RECORD struct {
EventType WORD
KeyEvent KEY_EVENT_RECORD
}
KEY_EVENT_RECORD struct {
KeyDown BOOL
RepeatCount WORD
VirtualKeyCode WORD
VirtualScanCode WORD
UnicodeChar WCHAR
ControlKeyState DWORD
}
WINDOW_BUFFER_SIZE struct {
Size COORD
}
)
// boolToBOOL converts a Go bool into a Windows BOOL.
func boolToBOOL(f bool) BOOL {
if f {
return BOOL(1)
} else {
return BOOL(0)
}
}
// GetConsoleCursorInfo retrieves information about the size and visiblity of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683163(v=vs.85).aspx.
func GetConsoleCursorInfo(handle uintptr, cursorInfo *CONSOLE_CURSOR_INFO) error {
r1, r2, err := getConsoleCursorInfoProc.Call(handle, uintptr(unsafe.Pointer(cursorInfo)), 0)
return checkError(r1, r2, err)
}
// SetConsoleCursorInfo sets the size and visiblity of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686019(v=vs.85).aspx.
func SetConsoleCursorInfo(handle uintptr, cursorInfo *CONSOLE_CURSOR_INFO) error {
r1, r2, err := setConsoleCursorInfoProc.Call(handle, uintptr(unsafe.Pointer(cursorInfo)), 0)
return checkError(r1, r2, err)
}
// SetConsoleCursorPosition location of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686025(v=vs.85).aspx.
func SetConsoleCursorPosition(handle uintptr, coord COORD) error {
r1, r2, err := setConsoleCursorPositionProc.Call(handle, coordToPointer(coord))
use(coord)
return checkError(r1, r2, err)
}
// GetConsoleMode gets the console mode for given file descriptor
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms683167(v=vs.85).aspx.
func GetConsoleMode(handle uintptr) (mode uint32, err error) {
err = syscall.GetConsoleMode(syscall.Handle(handle), &mode)
return mode, err
}
// SetConsoleMode sets the console mode for given file descriptor
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx.
func SetConsoleMode(handle uintptr, mode uint32) error {
r1, r2, err := setConsoleModeProc.Call(handle, uintptr(mode), 0)
use(mode)
return checkError(r1, r2, err)
}
// GetConsoleScreenBufferInfo retrieves information about the specified console screen buffer.
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms683171(v=vs.85).aspx.
func GetConsoleScreenBufferInfo(handle uintptr) (*CONSOLE_SCREEN_BUFFER_INFO, error) {
info := CONSOLE_SCREEN_BUFFER_INFO{}
err := checkError(getConsoleScreenBufferInfoProc.Call(handle, uintptr(unsafe.Pointer(&info)), 0))
if err != nil {
return nil, err
}
return &info, nil
}
func ScrollConsoleScreenBuffer(handle uintptr, scrollRect SMALL_RECT, clipRect SMALL_RECT, destOrigin COORD, char CHAR_INFO) error {
r1, r2, err := scrollConsoleScreenBufferProc.Call(handle, uintptr(unsafe.Pointer(&scrollRect)), uintptr(unsafe.Pointer(&clipRect)), coordToPointer(destOrigin), uintptr(unsafe.Pointer(&char)))
use(scrollRect)
use(clipRect)
use(destOrigin)
use(char)
return checkError(r1, r2, err)
}
// SetConsoleScreenBufferSize sets the size of the console screen buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686044(v=vs.85).aspx.
func SetConsoleScreenBufferSize(handle uintptr, coord COORD) error {
r1, r2, err := setConsoleScreenBufferSizeProc.Call(handle, coordToPointer(coord))
use(coord)
return checkError(r1, r2, err)
}
// SetConsoleTextAttribute sets the attributes of characters written to the
// console screen buffer by the WriteFile or WriteConsole function.
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms686047(v=vs.85).aspx.
func SetConsoleTextAttribute(handle uintptr, attribute WORD) error {
r1, r2, err := setConsoleTextAttributeProc.Call(handle, uintptr(attribute), 0)
use(attribute)
return checkError(r1, r2, err)
}
// SetConsoleWindowInfo sets the size and position of the console screen buffer's window.
// Note that the size and location must be within and no larger than the backing console screen buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686125(v=vs.85).aspx.
func SetConsoleWindowInfo(handle uintptr, isAbsolute bool, rect SMALL_RECT) error {
r1, r2, err := setConsoleWindowInfoProc.Call(handle, uintptr(boolToBOOL(isAbsolute)), uintptr(unsafe.Pointer(&rect)))
use(isAbsolute)
use(rect)
return checkError(r1, r2, err)
}
// WriteConsoleOutput writes the CHAR_INFOs from the provided buffer to the active console buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms687404(v=vs.85).aspx.
func WriteConsoleOutput(handle uintptr, buffer []CHAR_INFO, bufferSize COORD, bufferCoord COORD, writeRegion *SMALL_RECT) error {
r1, r2, err := writeConsoleOutputProc.Call(handle, uintptr(unsafe.Pointer(&buffer[0])), coordToPointer(bufferSize), coordToPointer(bufferCoord), uintptr(unsafe.Pointer(writeRegion)))
use(buffer)
use(bufferSize)
use(bufferCoord)
return checkError(r1, r2, err)
}
// ReadConsoleInput reads (and removes) data from the console input buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms684961(v=vs.85).aspx.
func ReadConsoleInput(handle uintptr, buffer []INPUT_RECORD, count *uint32) error {
r1, r2, err := readConsoleInputProc.Call(handle, uintptr(unsafe.Pointer(&buffer[0])), uintptr(len(buffer)), uintptr(unsafe.Pointer(count)))
use(buffer)
return checkError(r1, r2, err)
}
// WaitForSingleObject waits for the passed handle to be signaled.
// It returns true if the handle was signaled; false otherwise.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms687032(v=vs.85).aspx.
func WaitForSingleObject(handle uintptr, msWait uint32) (bool, error) {
r1, _, err := waitForSingleObjectProc.Call(handle, uintptr(DWORD(msWait)))
switch r1 {
case WAIT_ABANDONED, WAIT_TIMEOUT:
return false, nil
case WAIT_SIGNALED:
return true, nil
}
use(msWait)
return false, err
}
// String helpers
func (info CONSOLE_SCREEN_BUFFER_INFO) String() string {
return fmt.Sprintf("Size(%v) Cursor(%v) Window(%v) Max(%v)", info.Size, info.CursorPosition, info.Window, info.MaximumWindowSize)
}
func (coord COORD) String() string {
return fmt.Sprintf("%v,%v", coord.X, coord.Y)
}
func (rect SMALL_RECT) String() string {
return fmt.Sprintf("(%v,%v),(%v,%v)", rect.Left, rect.Top, rect.Right, rect.Bottom)
}
// checkError evaluates the results of a Windows API call and returns the error if it failed.
func checkError(r1, r2 uintptr, err error) error {
// Windows APIs return non-zero to indicate success
if r1 != 0 {
return nil
}
// Return the error if provided, otherwise default to EINVAL
if err != nil {
return err
}
return syscall.EINVAL
}
// coordToPointer converts a COORD into a uintptr (by fooling the type system).
func coordToPointer(c COORD) uintptr {
// Note: This code assumes the two SHORTs are correctly laid out; the "cast" to DWORD is just to get a pointer to pass.
return uintptr(*((*DWORD)(unsafe.Pointer(&c))))
}
// use is a no-op, but the compiler cannot see that it is.
// Calling use(p) ensures that p is kept live until that point.
func use(p interface{}) {}

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vendor/github.com/Azure/go-ansiterm/winterm/attr_translation.go generated vendored Normal file
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// +build windows
package winterm
import (
. "github.com/Azure/go-ansiterm"
)
const (
FOREGROUND_COLOR_MASK = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
BACKGROUND_COLOR_MASK = BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
)
// collectAnsiIntoWindowsAttributes modifies the passed Windows text mode flags to reflect the
// request represented by the passed ANSI mode.
func collectAnsiIntoWindowsAttributes(windowsMode WORD, inverted bool, baseMode WORD, ansiMode SHORT) (WORD, bool) {
switch ansiMode {
// Mode styles
case ANSI_SGR_BOLD:
windowsMode = windowsMode | FOREGROUND_INTENSITY
case ANSI_SGR_DIM, ANSI_SGR_BOLD_DIM_OFF:
windowsMode &^= FOREGROUND_INTENSITY
case ANSI_SGR_UNDERLINE:
windowsMode = windowsMode | COMMON_LVB_UNDERSCORE
case ANSI_SGR_REVERSE:
inverted = true
case ANSI_SGR_REVERSE_OFF:
inverted = false
case ANSI_SGR_UNDERLINE_OFF:
windowsMode &^= COMMON_LVB_UNDERSCORE
// Foreground colors
case ANSI_SGR_FOREGROUND_DEFAULT:
windowsMode = (windowsMode &^ FOREGROUND_MASK) | (baseMode & FOREGROUND_MASK)
case ANSI_SGR_FOREGROUND_BLACK:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK)
case ANSI_SGR_FOREGROUND_RED:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED
case ANSI_SGR_FOREGROUND_GREEN:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN
case ANSI_SGR_FOREGROUND_YELLOW:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN
case ANSI_SGR_FOREGROUND_BLUE:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_BLUE
case ANSI_SGR_FOREGROUND_MAGENTA:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_BLUE
case ANSI_SGR_FOREGROUND_CYAN:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN | FOREGROUND_BLUE
case ANSI_SGR_FOREGROUND_WHITE:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
// Background colors
case ANSI_SGR_BACKGROUND_DEFAULT:
// Black with no intensity
windowsMode = (windowsMode &^ BACKGROUND_MASK) | (baseMode & BACKGROUND_MASK)
case ANSI_SGR_BACKGROUND_BLACK:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK)
case ANSI_SGR_BACKGROUND_RED:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED
case ANSI_SGR_BACKGROUND_GREEN:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN
case ANSI_SGR_BACKGROUND_YELLOW:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN
case ANSI_SGR_BACKGROUND_BLUE:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_BLUE
case ANSI_SGR_BACKGROUND_MAGENTA:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_BLUE
case ANSI_SGR_BACKGROUND_CYAN:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN | BACKGROUND_BLUE
case ANSI_SGR_BACKGROUND_WHITE:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
}
return windowsMode, inverted
}
// invertAttributes inverts the foreground and background colors of a Windows attributes value
func invertAttributes(windowsMode WORD) WORD {
return (COMMON_LVB_MASK & windowsMode) | ((FOREGROUND_MASK & windowsMode) << 4) | ((BACKGROUND_MASK & windowsMode) >> 4)
}

101
vendor/github.com/Azure/go-ansiterm/winterm/cursor_helpers.go generated vendored Normal file
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// +build windows
package winterm
const (
Horizontal = iota
Vertical
)
func (h *WindowsAnsiEventHandler) getCursorWindow(info *CONSOLE_SCREEN_BUFFER_INFO) SMALL_RECT {
if h.originMode {
sr := h.effectiveSr(info.Window)
return SMALL_RECT{
Top: sr.top,
Bottom: sr.bottom,
Left: 0,
Right: info.Size.X - 1,
}
} else {
return SMALL_RECT{
Top: info.Window.Top,
Bottom: info.Window.Bottom,
Left: 0,
Right: info.Size.X - 1,
}
}
}
// setCursorPosition sets the cursor to the specified position, bounded to the screen size
func (h *WindowsAnsiEventHandler) setCursorPosition(position COORD, window SMALL_RECT) error {
position.X = ensureInRange(position.X, window.Left, window.Right)
position.Y = ensureInRange(position.Y, window.Top, window.Bottom)
err := SetConsoleCursorPosition(h.fd, position)
if err != nil {
return err
}
logger.Infof("Cursor position set: (%d, %d)", position.X, position.Y)
return err
}
func (h *WindowsAnsiEventHandler) moveCursorVertical(param int) error {
return h.moveCursor(Vertical, param)
}
func (h *WindowsAnsiEventHandler) moveCursorHorizontal(param int) error {
return h.moveCursor(Horizontal, param)
}
func (h *WindowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
switch moveMode {
case Horizontal:
position.X += SHORT(param)
case Vertical:
position.Y += SHORT(param)
}
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) moveCursorLine(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
position.X = 0
position.Y += SHORT(param)
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) moveCursorColumn(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
position.X = SHORT(param) - 1
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}

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vendor/github.com/Azure/go-ansiterm/winterm/erase_helpers.go generated vendored Normal file
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// +build windows
package winterm
import (
. "github.com/Azure/go-ansiterm"
)
func (h *WindowsAnsiEventHandler) clearRange(attributes WORD, fromCoord COORD, toCoord COORD) error {
// Ignore an invalid (negative area) request
if toCoord.Y < fromCoord.Y {
return nil
}
var err error
var coordStart = COORD{}
var coordEnd = COORD{}
xCurrent, yCurrent := fromCoord.X, fromCoord.Y
xEnd, yEnd := toCoord.X, toCoord.Y
// Clear any partial initial line
if xCurrent > 0 {
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yCurrent
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
xCurrent = 0
yCurrent += 1
}
// Clear intervening rectangular section
if yCurrent < yEnd {
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yEnd-1
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
xCurrent = 0
yCurrent = yEnd
}
// Clear remaining partial ending line
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yEnd
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) clearRect(attributes WORD, fromCoord COORD, toCoord COORD) error {
region := SMALL_RECT{Top: fromCoord.Y, Left: fromCoord.X, Bottom: toCoord.Y, Right: toCoord.X}
width := toCoord.X - fromCoord.X + 1
height := toCoord.Y - fromCoord.Y + 1
size := uint32(width) * uint32(height)
if size <= 0 {
return nil
}
buffer := make([]CHAR_INFO, size)
char := CHAR_INFO{WCHAR(FILL_CHARACTER), attributes}
for i := 0; i < int(size); i++ {
buffer[i] = char
}
err := WriteConsoleOutput(h.fd, buffer, COORD{X: width, Y: height}, COORD{X: 0, Y: 0}, &region)
if err != nil {
return err
}
return nil
}

118
vendor/github.com/Azure/go-ansiterm/winterm/scroll_helper.go generated vendored Normal file
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@ -0,0 +1,118 @@
// +build windows
package winterm
// effectiveSr gets the current effective scroll region in buffer coordinates
func (h *WindowsAnsiEventHandler) effectiveSr(window SMALL_RECT) scrollRegion {
top := AddInRange(window.Top, h.sr.top, window.Top, window.Bottom)
bottom := AddInRange(window.Top, h.sr.bottom, window.Top, window.Bottom)
if top >= bottom {
top = window.Top
bottom = window.Bottom
}
return scrollRegion{top: top, bottom: bottom}
}
func (h *WindowsAnsiEventHandler) scrollUp(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
sr := h.effectiveSr(info.Window)
return h.scroll(param, sr, info)
}
func (h *WindowsAnsiEventHandler) scrollDown(param int) error {
return h.scrollUp(-param)
}
func (h *WindowsAnsiEventHandler) deleteLines(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
start := info.CursorPosition.Y
sr := h.effectiveSr(info.Window)
// Lines cannot be inserted or deleted outside the scrolling region.
if start >= sr.top && start <= sr.bottom {
sr.top = start
return h.scroll(param, sr, info)
} else {
return nil
}
}
func (h *WindowsAnsiEventHandler) insertLines(param int) error {
return h.deleteLines(-param)
}
// scroll scrolls the provided scroll region by param lines. The scroll region is in buffer coordinates.
func (h *WindowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSOLE_SCREEN_BUFFER_INFO) error {
logger.Infof("scroll: scrollTop: %d, scrollBottom: %d", sr.top, sr.bottom)
logger.Infof("scroll: windowTop: %d, windowBottom: %d", info.Window.Top, info.Window.Bottom)
// Copy from and clip to the scroll region (full buffer width)
scrollRect := SMALL_RECT{
Top: sr.top,
Bottom: sr.bottom,
Left: 0,
Right: info.Size.X - 1,
}
// Origin to which area should be copied
destOrigin := COORD{
X: 0,
Y: sr.top - SHORT(param),
}
char := CHAR_INFO{
UnicodeChar: ' ',
Attributes: h.attributes,
}
if err := ScrollConsoleScreenBuffer(h.fd, scrollRect, scrollRect, destOrigin, char); err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) deleteCharacters(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
return h.scrollLine(param, info.CursorPosition, info)
}
func (h *WindowsAnsiEventHandler) insertCharacters(param int) error {
return h.deleteCharacters(-param)
}
// scrollLine scrolls a line horizontally starting at the provided position by a number of columns.
func (h *WindowsAnsiEventHandler) scrollLine(columns int, position COORD, info *CONSOLE_SCREEN_BUFFER_INFO) error {
// Copy from and clip to the scroll region (full buffer width)
scrollRect := SMALL_RECT{
Top: position.Y,
Bottom: position.Y,
Left: position.X,
Right: info.Size.X - 1,
}
// Origin to which area should be copied
destOrigin := COORD{
X: position.X - SHORT(columns),
Y: position.Y,
}
char := CHAR_INFO{
UnicodeChar: ' ',
Attributes: h.attributes,
}
if err := ScrollConsoleScreenBuffer(h.fd, scrollRect, scrollRect, destOrigin, char); err != nil {
return err
}
return nil
}

9
vendor/github.com/Azure/go-ansiterm/winterm/utilities.go generated vendored Normal file
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@ -0,0 +1,9 @@
// +build windows
package winterm
// AddInRange increments a value by the passed quantity while ensuring the values
// always remain within the supplied min / max range.
func AddInRange(n SHORT, increment SHORT, min SHORT, max SHORT) SHORT {
return ensureInRange(n+increment, min, max)
}

725
vendor/github.com/Azure/go-ansiterm/winterm/win_event_handler.go generated vendored Normal file
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@ -0,0 +1,725 @@
// +build windows
package winterm
import (
"bytes"
"io/ioutil"
"os"
"strconv"
. "github.com/Azure/go-ansiterm"
"github.com/Sirupsen/logrus"
)
var logger *logrus.Logger
type WindowsAnsiEventHandler struct {
fd uintptr
file *os.File
infoReset *CONSOLE_SCREEN_BUFFER_INFO
sr scrollRegion
buffer bytes.Buffer
attributes WORD
inverted bool
wrapNext bool
drewMarginByte bool
originMode bool
marginByte byte
curInfo *CONSOLE_SCREEN_BUFFER_INFO
curPos COORD
}
func CreateWinEventHandler(fd uintptr, file *os.File) AnsiEventHandler {
logFile := ioutil.Discard
if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
logFile, _ = os.Create("winEventHandler.log")
}
logger = &logrus.Logger{
Out: logFile,
Formatter: new(logrus.TextFormatter),
Level: logrus.DebugLevel,
}
infoReset, err := GetConsoleScreenBufferInfo(fd)
if err != nil {
return nil
}
return &WindowsAnsiEventHandler{
fd: fd,
file: file,
infoReset: infoReset,
attributes: infoReset.Attributes,
}
}
type scrollRegion struct {
top SHORT
bottom SHORT
}
// simulateLF simulates a LF or CR+LF by scrolling if necessary to handle the
// current cursor position and scroll region settings, in which case it returns
// true. If no special handling is necessary, then it does nothing and returns
// false.
//
// In the false case, the caller should ensure that a carriage return
// and line feed are inserted or that the text is otherwise wrapped.
func (h *WindowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
if h.wrapNext {
if err := h.Flush(); err != nil {
return false, err
}
h.clearWrap()
}
pos, info, err := h.getCurrentInfo()
if err != nil {
return false, err
}
sr := h.effectiveSr(info.Window)
if pos.Y == sr.bottom {
// Scrolling is necessary. Let Windows automatically scroll if the scrolling region
// is the full window.
if sr.top == info.Window.Top && sr.bottom == info.Window.Bottom {
if includeCR {
pos.X = 0
h.updatePos(pos)
}
return false, nil
} else {
// A custom scroll region is active. Scroll the window manually to simulate
// the LF.
if err := h.Flush(); err != nil {
return false, err
}
logger.Info("Simulating LF inside scroll region")
if err := h.scrollUp(1); err != nil {
return false, err
}
if includeCR {
pos.X = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return false, err
}
}
return true, nil
}
} else if pos.Y < info.Window.Bottom {
// Let Windows handle the LF.
pos.Y++
if includeCR {
pos.X = 0
}
h.updatePos(pos)
return false, nil
} else {
// The cursor is at the bottom of the screen but outside the scroll
// region. Skip the LF.
logger.Info("Simulating LF outside scroll region")
if includeCR {
if err := h.Flush(); err != nil {
return false, err
}
pos.X = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return false, err
}
}
return true, nil
}
}
// executeLF executes a LF without a CR.
func (h *WindowsAnsiEventHandler) executeLF() error {
handled, err := h.simulateLF(false)
if err != nil {
return err
}
if !handled {
// Windows LF will reset the cursor column position. Write the LF
// and restore the cursor position.
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
h.buffer.WriteByte(ANSI_LINE_FEED)
if pos.X != 0 {
if err := h.Flush(); err != nil {
return err
}
logger.Info("Resetting cursor position for LF without CR")
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
}
}
return nil
}
func (h *WindowsAnsiEventHandler) Print(b byte) error {
if h.wrapNext {
h.buffer.WriteByte(h.marginByte)
h.clearWrap()
if _, err := h.simulateLF(true); err != nil {
return err
}
}
pos, info, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X == info.Size.X-1 {
h.wrapNext = true
h.marginByte = b
} else {
pos.X++
h.updatePos(pos)
h.buffer.WriteByte(b)
}
return nil
}
func (h *WindowsAnsiEventHandler) Execute(b byte) error {
switch b {
case ANSI_TAB:
logger.Info("Execute(TAB)")
// Move to the next tab stop, but preserve auto-wrap if already set.
if !h.wrapNext {
pos, info, err := h.getCurrentInfo()
if err != nil {
return err
}
pos.X = (pos.X + 8) - pos.X%8
if pos.X >= info.Size.X {
pos.X = info.Size.X - 1
}
if err := h.Flush(); err != nil {
return err
}
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
}
return nil
case ANSI_BEL:
h.buffer.WriteByte(ANSI_BEL)
return nil
case ANSI_BACKSPACE:
if h.wrapNext {
if err := h.Flush(); err != nil {
return err
}
h.clearWrap()
}
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X > 0 {
pos.X--
h.updatePos(pos)
h.buffer.WriteByte(ANSI_BACKSPACE)
}
return nil
case ANSI_VERTICAL_TAB, ANSI_FORM_FEED:
// Treat as true LF.
return h.executeLF()
case ANSI_LINE_FEED:
// Simulate a CR and LF for now since there is no way in go-ansiterm
// to tell if the LF should include CR (and more things break when it's
// missing than when it's incorrectly added).
handled, err := h.simulateLF(true)
if handled || err != nil {
return err
}
return h.buffer.WriteByte(ANSI_LINE_FEED)
case ANSI_CARRIAGE_RETURN:
if h.wrapNext {
if err := h.Flush(); err != nil {
return err
}
h.clearWrap()
}
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X != 0 {
pos.X = 0
h.updatePos(pos)
h.buffer.WriteByte(ANSI_CARRIAGE_RETURN)
}
return nil
default:
return nil
}
}
func (h *WindowsAnsiEventHandler) CUU(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CUU: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorVertical(-param)
}
func (h *WindowsAnsiEventHandler) CUD(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CUD: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorVertical(param)
}
func (h *WindowsAnsiEventHandler) CUF(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CUF: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorHorizontal(param)
}
func (h *WindowsAnsiEventHandler) CUB(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CUB: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorHorizontal(-param)
}
func (h *WindowsAnsiEventHandler) CNL(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CNL: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorLine(param)
}
func (h *WindowsAnsiEventHandler) CPL(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CPL: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorLine(-param)
}
func (h *WindowsAnsiEventHandler) CHA(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CHA: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorColumn(param)
}
func (h *WindowsAnsiEventHandler) VPA(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("VPA: [[%d]]", param)
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
window := h.getCursorWindow(info)
position := info.CursorPosition
position.Y = window.Top + SHORT(param) - 1
return h.setCursorPosition(position, window)
}
func (h *WindowsAnsiEventHandler) CUP(row int, col int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("CUP: [[%d %d]]", row, col)
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
window := h.getCursorWindow(info)
position := COORD{window.Left + SHORT(col) - 1, window.Top + SHORT(row) - 1}
return h.setCursorPosition(position, window)
}
func (h *WindowsAnsiEventHandler) HVP(row int, col int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("HVP: [[%d %d]]", row, col)
h.clearWrap()
return h.CUP(row, col)
}
func (h *WindowsAnsiEventHandler) DECTCEM(visible bool) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DECTCEM: [%v]", []string{strconv.FormatBool(visible)})
h.clearWrap()
return nil
}
func (h *WindowsAnsiEventHandler) DECOM(enable bool) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DECOM: [%v]", []string{strconv.FormatBool(enable)})
h.clearWrap()
h.originMode = enable
return h.CUP(1, 1)
}
func (h *WindowsAnsiEventHandler) DECCOLM(use132 bool) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DECCOLM: [%v]", []string{strconv.FormatBool(use132)})
h.clearWrap()
if err := h.ED(2); err != nil {
return err
}
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
targetWidth := SHORT(80)
if use132 {
targetWidth = 132
}
if info.Size.X < targetWidth {
if err := SetConsoleScreenBufferSize(h.fd, COORD{targetWidth, info.Size.Y}); err != nil {
logger.Info("set buffer failed:", err)
return err
}
}
window := info.Window
window.Left = 0
window.Right = targetWidth - 1
if err := SetConsoleWindowInfo(h.fd, true, window); err != nil {
logger.Info("set window failed:", err)
return err
}
if info.Size.X > targetWidth {
if err := SetConsoleScreenBufferSize(h.fd, COORD{targetWidth, info.Size.Y}); err != nil {
logger.Info("set buffer failed:", err)
return err
}
}
return SetConsoleCursorPosition(h.fd, COORD{0, 0})
}
func (h *WindowsAnsiEventHandler) ED(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("ED: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
// [J -- Erases from the cursor to the end of the screen, including the cursor position.
// [1J -- Erases from the beginning of the screen to the cursor, including the cursor position.
// [2J -- Erases the complete display. The cursor does not move.
// Notes:
// -- Clearing the entire buffer, versus just the Window, works best for Windows Consoles
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
var start COORD
var end COORD
switch param {
case 0:
start = info.CursorPosition
end = COORD{info.Size.X - 1, info.Size.Y - 1}
case 1:
start = COORD{0, 0}
end = info.CursorPosition
case 2:
start = COORD{0, 0}
end = COORD{info.Size.X - 1, info.Size.Y - 1}
}
err = h.clearRange(h.attributes, start, end)
if err != nil {
return err
}
// If the whole buffer was cleared, move the window to the top while preserving
// the window-relative cursor position.
if param == 2 {
pos := info.CursorPosition
window := info.Window
pos.Y -= window.Top
window.Bottom -= window.Top
window.Top = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
if err := SetConsoleWindowInfo(h.fd, true, window); err != nil {
return err
}
}
return nil
}
func (h *WindowsAnsiEventHandler) EL(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("EL: [%v]", strconv.Itoa(param))
h.clearWrap()
// [K -- Erases from the cursor to the end of the line, including the cursor position.
// [1K -- Erases from the beginning of the line to the cursor, including the cursor position.
// [2K -- Erases the complete line.
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
var start COORD
var end COORD
switch param {
case 0:
start = info.CursorPosition
end = COORD{info.Size.X, info.CursorPosition.Y}
case 1:
start = COORD{0, info.CursorPosition.Y}
end = info.CursorPosition
case 2:
start = COORD{0, info.CursorPosition.Y}
end = COORD{info.Size.X, info.CursorPosition.Y}
}
err = h.clearRange(h.attributes, start, end)
if err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) IL(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("IL: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.insertLines(param)
}
func (h *WindowsAnsiEventHandler) DL(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DL: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.deleteLines(param)
}
func (h *WindowsAnsiEventHandler) ICH(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("ICH: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.insertCharacters(param)
}
func (h *WindowsAnsiEventHandler) DCH(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DCH: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.deleteCharacters(param)
}
func (h *WindowsAnsiEventHandler) SGR(params []int) error {
if err := h.Flush(); err != nil {
return err
}
strings := []string{}
for _, v := range params {
strings = append(strings, strconv.Itoa(v))
}
logger.Infof("SGR: [%v]", strings)
if len(params) <= 0 {
h.attributes = h.infoReset.Attributes
h.inverted = false
} else {
for _, attr := range params {
if attr == ANSI_SGR_RESET {
h.attributes = h.infoReset.Attributes
h.inverted = false
continue
}
h.attributes, h.inverted = collectAnsiIntoWindowsAttributes(h.attributes, h.inverted, h.infoReset.Attributes, SHORT(attr))
}
}
attributes := h.attributes
if h.inverted {
attributes = invertAttributes(attributes)
}
err := SetConsoleTextAttribute(h.fd, attributes)
if err != nil {
return err
}
return nil
}
func (h *WindowsAnsiEventHandler) SU(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("SU: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.scrollUp(param)
}
func (h *WindowsAnsiEventHandler) SD(param int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("SD: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.scrollDown(param)
}
func (h *WindowsAnsiEventHandler) DA(params []string) error {
logger.Infof("DA: [%v]", params)
// DA cannot be implemented because it must send data on the VT100 input stream,
// which is not available to go-ansiterm.
return nil
}
func (h *WindowsAnsiEventHandler) DECSTBM(top int, bottom int) error {
if err := h.Flush(); err != nil {
return err
}
logger.Infof("DECSTBM: [%d, %d]", top, bottom)
// Windows is 0 indexed, Linux is 1 indexed
h.sr.top = SHORT(top - 1)
h.sr.bottom = SHORT(bottom - 1)
// This command also moves the cursor to the origin.
h.clearWrap()
return h.CUP(1, 1)
}
func (h *WindowsAnsiEventHandler) RI() error {
if err := h.Flush(); err != nil {
return err
}
logger.Info("RI: []")
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
sr := h.effectiveSr(info.Window)
if info.CursorPosition.Y == sr.top {
return h.scrollDown(1)
} else {
return h.moveCursorVertical(-1)
}
}
func (h *WindowsAnsiEventHandler) IND() error {
logger.Info("IND: []")
return h.executeLF()
}
func (h *WindowsAnsiEventHandler) Flush() error {
h.curInfo = nil
if h.buffer.Len() > 0 {
logger.Infof("Flush: [%s]", h.buffer.Bytes())
if _, err := h.buffer.WriteTo(h.file); err != nil {
return err
}
}
if h.wrapNext && !h.drewMarginByte {
logger.Infof("Flush: drawing margin byte '%c'", h.marginByte)
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
charInfo := []CHAR_INFO{{UnicodeChar: WCHAR(h.marginByte), Attributes: info.Attributes}}
size := COORD{1, 1}
position := COORD{0, 0}
region := SMALL_RECT{Left: info.CursorPosition.X, Top: info.CursorPosition.Y, Right: info.CursorPosition.X, Bottom: info.CursorPosition.Y}
if err := WriteConsoleOutput(h.fd, charInfo, size, position, &region); err != nil {
return err
}
h.drewMarginByte = true
}
return nil
}
// cacheConsoleInfo ensures that the current console screen information has been queried
// since the last call to Flush(). It must be called before accessing h.curInfo or h.curPos.
func (h *WindowsAnsiEventHandler) getCurrentInfo() (COORD, *CONSOLE_SCREEN_BUFFER_INFO, error) {
if h.curInfo == nil {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return COORD{}, nil, err
}
h.curInfo = info
h.curPos = info.CursorPosition
}
return h.curPos, h.curInfo, nil
}
func (h *WindowsAnsiEventHandler) updatePos(pos COORD) {
if h.curInfo == nil {
panic("failed to call getCurrentInfo before calling updatePos")
}
h.curPos = pos
}
// clearWrap clears the state where the cursor is in the margin
// waiting for the next character before wrapping the line. This must
// be done before most operations that act on the cursor.
func (h *WindowsAnsiEventHandler) clearWrap() {
h.wrapNext = false
h.drewMarginByte = false
}

1
vendor/github.com/Sirupsen/logrus/.gitignore generated vendored Normal file
View File

@ -0,0 +1 @@
logrus

8
vendor/github.com/Sirupsen/logrus/.travis.yml generated vendored Normal file
View File

@ -0,0 +1,8 @@
language: go
go:
- 1.2
- 1.3
- 1.4
- tip
install:
- go get -t ./...

21
vendor/github.com/Sirupsen/logrus/CHANGELOG.md generated vendored Normal file
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@ -0,0 +1,21 @@
# 0.8.2
logrus: fix more Fatal family functions
# 0.8.1
logrus: fix not exiting on `Fatalf` and `Fatalln`
# 0.8.0
logrus: defaults to stderr instead of stdout
hooks/sentry: add special field for `*http.Request`
formatter/text: ignore Windows for colors
# 0.7.3
formatter/\*: allow configuration of timestamp layout
# 0.7.2
formatter/text: Add configuration option for time format (#158)

21
vendor/github.com/Sirupsen/logrus/LICENSE generated vendored Normal file
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014 Simon Eskildsen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![godoc reference](https://godoc.org/github.com/Sirupsen/logrus?status.png)][godoc]
Logrus is a structured logger for Go (golang), completely API compatible with
the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
yet stable (pre 1.0). Logrus itself is completely stable and has been used in
many large deployments. The core API is unlikely to change much but please
version control your Logrus to make sure you aren't fetching latest `master` on
every build.**
Nicely color-coded in development (when a TTY is attached, otherwise just
plain text):
![Colored](http://i.imgur.com/PY7qMwd.png)
With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash
or Splunk:
```json
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
{"level":"warning","msg":"The group's number increased tremendously!",
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
```
With the default `log.Formatter = new(&log.TextFormatter{})` when a TTY is not
attached, the output is compatible with the
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
```text
time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
exit status 1
```
#### Example
The simplest way to use Logrus is simply the package-level exported logger:
```go
package main
import (
log "github.com/Sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
}).Info("A walrus appears")
}
```
Note that it's completely api-compatible with the stdlib logger, so you can
replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
and you'll now have the flexibility of Logrus. You can customize it all you
want:
```go
package main
import (
"os"
log "github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Use the Airbrake hook to report errors that have Error severity or above to
// an exception tracker. You can create custom hooks, see the Hooks section.
log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
// Output to stderr instead of stdout, could also be a file.
log.SetOutput(os.Stderr)
// Only log the warning severity or above.
log.SetLevel(log.WarnLevel)
}
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(log.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(log.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
// A common pattern is to re-use fields between logging statements by re-using
// the logrus.Entry returned from WithFields()
contextLogger := log.WithFields(log.Fields{
"common": "this is a common field",
"other": "I also should be logged always",
})
contextLogger.Info("I'll be logged with common and other field")
contextLogger.Info("Me too")
}
```
For more advanced usage such as logging to multiple locations from the same
application, you can also create an instance of the `logrus` Logger:
```go
package main
import (
"github.com/Sirupsen/logrus"
)
// Create a new instance of the logger. You can have any number of instances.
var log = logrus.New()
func main() {
// The API for setting attributes is a little different than the package level
// exported logger. See Godoc.
log.Out = os.Stderr
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
}
```
#### Fields
Logrus encourages careful, structured logging though logging fields instead of
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
to send event %s to topic %s with key %d")`, you should log the much more
discoverable:
```go
log.WithFields(log.Fields{
"event": event,
"topic": topic,
"key": key,
}).Fatal("Failed to send event")
```
We've found this API forces you to think about logging in a way that produces
much more useful logging messages. We've been in countless situations where just
a single added field to a log statement that was already there would've saved us
hours. The `WithFields` call is optional.
In general, with Logrus using any of the `printf`-family functions should be
seen as a hint you should add a field, however, you can still use the
`printf`-family functions with Logrus.
#### Hooks
You can add hooks for logging levels. For example to send errors to an exception
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
multiple places simultaneously, e.g. syslog.
Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
`init`:
```go
import (
log "github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
"github.com/Sirupsen/logrus/hooks/syslog"
"log/syslog"
)
func init() {
log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
log.Error("Unable to connect to local syslog daemon")
} else {
log.AddHook(hook)
}
}
```
| Hook | Description |
| ----- | ----------- |
| [Airbrake](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go) | Send errors to an exception tracking service compatible with the Airbrake API. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
| [Papertrail](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go) | Send errors to the Papertrail hosted logging service via UDP. |
| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
| [BugSnag](https://github.com/Sirupsen/logrus/blob/master/hooks/bugsnag/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
| [Graylog](https://github.com/gemnasium/logrus-hooks/tree/master/graylog) | Hook for logging to [Graylog](http://graylog2.org/) |
| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
#### Level logging
Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
```go
log.Debug("Useful debugging information.")
log.Info("Something noteworthy happened!")
log.Warn("You should probably take a look at this.")
log.Error("Something failed but I'm not quitting.")
// Calls os.Exit(1) after logging
log.Fatal("Bye.")
// Calls panic() after logging
log.Panic("I'm bailing.")
```
You can set the logging level on a `Logger`, then it will only log entries with
that severity or anything above it:
```go
// Will log anything that is info or above (warn, error, fatal, panic). Default.
log.SetLevel(log.InfoLevel)
```
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
environment if your application has that.
#### Entries
Besides the fields added with `WithField` or `WithFields` some fields are
automatically added to all logging events:
1. `time`. The timestamp when the entry was created.
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
the `AddFields` call. E.g. `Failed to send event.`
3. `level`. The logging level. E.g. `info`.
#### Environments
Logrus has no notion of environment.
If you wish for hooks and formatters to only be used in specific environments,
you should handle that yourself. For example, if your application has a global
variable `Environment`, which is a string representation of the environment you
could do:
```go
import (
log "github.com/Sirupsen/logrus"
)
init() {
// do something here to set environment depending on an environment variable
// or command-line flag
if Environment == "production" {
log.SetFormatter(logrus.JSONFormatter)
} else {
// The TextFormatter is default, you don't actually have to do this.
log.SetFormatter(&log.TextFormatter{})
}
}
```
This configuration is how `logrus` was intended to be used, but JSON in
production is mostly only useful if you do log aggregation with tools like
Splunk or Logstash.
#### Formatters
The built-in logging formatters are:
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
without colors.
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
field to `true`. To force no colored output even if there is a TTY set the
`DisableColors` field to `true`
* `logrus.JSONFormatter`. Logs fields as JSON.
* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net).
```go
logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"})
```
Third party logging formatters:
* [`zalgo`](https://github.com/aybabtme/logzalgo): invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
You can define your formatter by implementing the `Formatter` interface,
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
`Fields` type (`map[string]interface{}`) with all your fields as well as the
default ones (see Entries section above):
```go
type MyJSONFormatter struct {
}
log.SetFormatter(new(MyJSONFormatter))
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
// Note this doesn't include Time, Level and Message which are available on
// the Entry. Consult `godoc` on information about those fields or read the
// source of the official loggers.
serialized, err := json.Marshal(entry.Data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}
```
#### Logger as an `io.Writer`
Logrus can be transormed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
```go
w := logger.Writer()
defer w.Close()
srv := http.Server{
// create a stdlib log.Logger that writes to
// logrus.Logger.
ErrorLog: log.New(w, "", 0),
}
```
Each line written to that writer will be printed the usual way, using formatters
and hooks. The level for those entries is `info`.
#### Rotation
Log rotation is not provided with Logrus. Log rotation should be done by an
external program (like `logrotate(8)`) that can compress and delete old log
entries. It should not be a feature of the application-level logger.
[godoc]: https://godoc.org/github.com/Sirupsen/logrus

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package logrus
import (
"bytes"
"fmt"
"io"
"os"
"time"
)
// An entry is the final or intermediate Logrus logging entry. It contains all
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
// passed around as much as you wish to avoid field duplication.
type Entry struct {
Logger *Logger
// Contains all the fields set by the user.
Data Fields
// Time at which the log entry was created
Time time.Time
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
Level Level
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
Message string
}
func NewEntry(logger *Logger) *Entry {
return &Entry{
Logger: logger,
// Default is three fields, give a little extra room
Data: make(Fields, 5),
}
}
// Returns a reader for the entry, which is a proxy to the formatter.
func (entry *Entry) Reader() (*bytes.Buffer, error) {
serialized, err := entry.Logger.Formatter.Format(entry)
return bytes.NewBuffer(serialized), err
}
// Returns the string representation from the reader and ultimately the
// formatter.
func (entry *Entry) String() (string, error) {
reader, err := entry.Reader()
if err != nil {
return "", err
}
return reader.String(), err
}
// Add a single field to the Entry.
func (entry *Entry) WithField(key string, value interface{}) *Entry {
return entry.WithFields(Fields{key: value})
}
// Add a map of fields to the Entry.
func (entry *Entry) WithFields(fields Fields) *Entry {
data := Fields{}
for k, v := range entry.Data {
data[k] = v
}
for k, v := range fields {
data[k] = v
}
return &Entry{Logger: entry.Logger, Data: data}
}
func (entry *Entry) log(level Level, msg string) {
entry.Time = time.Now()
entry.Level = level
entry.Message = msg
if err := entry.Logger.Hooks.Fire(level, entry); err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
entry.Logger.mu.Unlock()
}
reader, err := entry.Reader()
if err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
entry.Logger.mu.Unlock()
}
entry.Logger.mu.Lock()
defer entry.Logger.mu.Unlock()
_, err = io.Copy(entry.Logger.Out, reader)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
}
// To avoid Entry#log() returning a value that only would make sense for
// panic() to use in Entry#Panic(), we avoid the allocation by checking
// directly here.
if level <= PanicLevel {
panic(entry)
}
}
func (entry *Entry) Debug(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.log(DebugLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Print(args ...interface{}) {
entry.Info(args...)
}
func (entry *Entry) Info(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.log(InfoLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warn(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.log(WarnLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warning(args ...interface{}) {
entry.Warn(args...)
}
func (entry *Entry) Error(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.log(ErrorLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Fatal(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.log(FatalLevel, fmt.Sprint(args...))
}
os.Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.log(PanicLevel, fmt.Sprint(args...))
}
panic(fmt.Sprint(args...))
}
// Entry Printf family functions
func (entry *Entry) Debugf(format string, args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Infof(format string, args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Printf(format string, args ...interface{}) {
entry.Infof(format, args...)
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Warningf(format string, args ...interface{}) {
entry.Warnf(format, args...)
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(fmt.Sprintf(format, args...))
}
os.Exit(1)
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(fmt.Sprintf(format, args...))
}
}
// Entry Println family functions
func (entry *Entry) Debugln(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(entry.sprintlnn(args...))
}
}
func (entry *Entry) Infoln(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(entry.sprintlnn(args...))
}
}
func (entry *Entry) Println(args ...interface{}) {
entry.Infoln(args...)
}
func (entry *Entry) Warnln(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(entry.sprintlnn(args...))
}
}
func (entry *Entry) Warningln(args ...interface{}) {
entry.Warnln(args...)
}
func (entry *Entry) Errorln(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(entry.sprintlnn(args...))
}
}
func (entry *Entry) Fatalln(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(entry.sprintlnn(args...))
}
os.Exit(1)
}
func (entry *Entry) Panicln(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(entry.sprintlnn(args...))
}
}
// Sprintlnn => Sprint no newline. This is to get the behavior of how
// fmt.Sprintln where spaces are always added between operands, regardless of
// their type. Instead of vendoring the Sprintln implementation to spare a
// string allocation, we do the simplest thing.
func (entry *Entry) sprintlnn(args ...interface{}) string {
msg := fmt.Sprintln(args...)
return msg[:len(msg)-1]
}

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package logrus
import (
"io"
)
var (
// std is the name of the standard logger in stdlib `log`
std = New()
)
func StandardLogger() *Logger {
return std
}
// SetOutput sets the standard logger output.
func SetOutput(out io.Writer) {
std.mu.Lock()
defer std.mu.Unlock()
std.Out = out
}
// SetFormatter sets the standard logger formatter.
func SetFormatter(formatter Formatter) {
std.mu.Lock()
defer std.mu.Unlock()
std.Formatter = formatter
}
// SetLevel sets the standard logger level.
func SetLevel(level Level) {
std.mu.Lock()
defer std.mu.Unlock()
std.Level = level
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
std.mu.Lock()
defer std.mu.Unlock()
return std.Level
}
// AddHook adds a hook to the standard logger hooks.
func AddHook(hook Hook) {
std.mu.Lock()
defer std.mu.Unlock()
std.Hooks.Add(hook)
}
// WithField creates an entry from the standard logger and adds a field to
// it. If you want multiple fields, use `WithFields`.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithField(key string, value interface{}) *Entry {
return std.WithField(key, value)
}
// WithFields creates an entry from the standard logger and adds multiple
// fields to it. This is simply a helper for `WithField`, invoking it
// once for each field.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithFields(fields Fields) *Entry {
return std.WithFields(fields)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
std.Debug(args...)
}
// Print logs a message at level Info on the standard logger.
func Print(args ...interface{}) {
std.Print(args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
std.Info(args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
std.Warn(args...)
}
// Warning logs a message at level Warn on the standard logger.
func Warning(args ...interface{}) {
std.Warning(args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
std.Error(args...)
}
// Panic logs a message at level Panic on the standard logger.
func Panic(args ...interface{}) {
std.Panic(args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func Fatal(args ...interface{}) {
std.Fatal(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
std.Debugf(format, args...)
}
// Printf logs a message at level Info on the standard logger.
func Printf(format string, args ...interface{}) {
std.Printf(format, args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
std.Infof(format, args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
std.Warnf(format, args...)
}
// Warningf logs a message at level Warn on the standard logger.
func Warningf(format string, args ...interface{}) {
std.Warningf(format, args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
std.Errorf(format, args...)
}
// Panicf logs a message at level Panic on the standard logger.
func Panicf(format string, args ...interface{}) {
std.Panicf(format, args...)
}
// Fatalf logs a message at level Fatal on the standard logger.
func Fatalf(format string, args ...interface{}) {
std.Fatalf(format, args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
std.Debugln(args...)
}
// Println logs a message at level Info on the standard logger.
func Println(args ...interface{}) {
std.Println(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
std.Infoln(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
std.Warnln(args...)
}
// Warningln logs a message at level Warn on the standard logger.
func Warningln(args ...interface{}) {
std.Warningln(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
std.Errorln(args...)
}
// Panicln logs a message at level Panic on the standard logger.
func Panicln(args ...interface{}) {
std.Panicln(args...)
}
// Fatalln logs a message at level Fatal on the standard logger.
func Fatalln(args ...interface{}) {
std.Fatalln(args...)
}

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package logrus
import "time"
const DefaultTimestampFormat = time.RFC3339
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:
//
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
// * `entry.Data["time"]`. The timestamp.
// * `entry.Data["level"]. The level the entry was logged at.
//
// Any additional fields added with `WithField` or `WithFields` are also in
// `entry.Data`. Format is expected to return an array of bytes which are then
// logged to `logger.Out`.
type Formatter interface {
Format(*Entry) ([]byte, error)
}
// This is to not silently overwrite `time`, `msg` and `level` fields when
// dumping it. If this code wasn't there doing:
//
// logrus.WithField("level", 1).Info("hello")
//
// Would just silently drop the user provided level. Instead with this code
// it'll logged as:
//
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
//
// It's not exported because it's still using Data in an opinionated way. It's to
// avoid code duplication between the two default formatters.
func prefixFieldClashes(data Fields) {
_, ok := data["time"]
if ok {
data["fields.time"] = data["time"]
}
_, ok = data["msg"]
if ok {
data["fields.msg"] = data["msg"]
}
_, ok = data["level"]
if ok {
data["fields.level"] = data["level"]
}
}

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package logrus
// A hook to be fired when logging on the logging levels returned from
// `Levels()` on your implementation of the interface. Note that this is not
// fired in a goroutine or a channel with workers, you should handle such
// functionality yourself if your call is non-blocking and you don't wish for
// the logging calls for levels returned from `Levels()` to block.
type Hook interface {
Levels() []Level
Fire(*Entry) error
}
// Internal type for storing the hooks on a logger instance.
type levelHooks map[Level][]Hook
// Add a hook to an instance of logger. This is called with
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
func (hooks levelHooks) Add(hook Hook) {
for _, level := range hook.Levels() {
hooks[level] = append(hooks[level], hook)
}
}
// Fire all the hooks for the passed level. Used by `entry.log` to fire
// appropriate hooks for a log entry.
func (hooks levelHooks) Fire(level Level, entry *Entry) error {
for _, hook := range hooks[level] {
if err := hook.Fire(entry); err != nil {
return err
}
}
return nil
}

41
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package logrus
import (
"encoding/json"
"fmt"
)
type JSONFormatter struct {
// TimestampFormat sets the format used for marshaling timestamps.
TimestampFormat string
}
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+3)
for k, v := range entry.Data {
switch v := v.(type) {
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/Sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
}
}
prefixFieldClashes(data)
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
}
data["time"] = entry.Time.Format(timestampFormat)
data["msg"] = entry.Message
data["level"] = entry.Level.String()
serialized, err := json.Marshal(data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}

206
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package logrus
import (
"io"
"os"
"sync"
)
type Logger struct {
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
// file, or leave it default which is `os.Stdout`. You can also set this to
// something more adventorous, such as logging to Kafka.
Out io.Writer
// Hooks for the logger instance. These allow firing events based on logging
// levels and log entries. For example, to send errors to an error tracking
// service, log to StatsD or dump the core on fatal errors.
Hooks levelHooks
// All log entries pass through the formatter before logged to Out. The
// included formatters are `TextFormatter` and `JSONFormatter` for which
// TextFormatter is the default. In development (when a TTY is attached) it
// logs with colors, but to a file it wouldn't. You can easily implement your
// own that implements the `Formatter` interface, see the `README` or included
// formatters for examples.
Formatter Formatter
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged. `logrus.Debug` is useful in
Level Level
// Used to sync writing to the log.
mu sync.Mutex
}
// Creates a new logger. Configuration should be set by changing `Formatter`,
// `Out` and `Hooks` directly on the default logger instance. You can also just
// instantiate your own:
//
// var log = &Logger{
// Out: os.Stderr,
// Formatter: new(JSONFormatter),
// Hooks: make(levelHooks),
// Level: logrus.DebugLevel,
// }
//
// It's recommended to make this a global instance called `log`.
func New() *Logger {
return &Logger{
Out: os.Stderr,
Formatter: new(TextFormatter),
Hooks: make(levelHooks),
Level: InfoLevel,
}
}
// Adds a field to the log entry, note that you it doesn't log until you call
// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
// Ff you want multiple fields, use `WithFields`.
func (logger *Logger) WithField(key string, value interface{}) *Entry {
return NewEntry(logger).WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func (logger *Logger) WithFields(fields Fields) *Entry {
return NewEntry(logger).WithFields(fields)
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
if logger.Level >= DebugLevel {
NewEntry(logger).Debugf(format, args...)
}
}
func (logger *Logger) Infof(format string, args ...interface{}) {
if logger.Level >= InfoLevel {
NewEntry(logger).Infof(format, args...)
}
}
func (logger *Logger) Printf(format string, args ...interface{}) {
NewEntry(logger).Printf(format, args...)
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warnf(format, args...)
}
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warnf(format, args...)
}
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
if logger.Level >= ErrorLevel {
NewEntry(logger).Errorf(format, args...)
}
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
if logger.Level >= FatalLevel {
NewEntry(logger).Fatalf(format, args...)
}
os.Exit(1)
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
if logger.Level >= PanicLevel {
NewEntry(logger).Panicf(format, args...)
}
}
func (logger *Logger) Debug(args ...interface{}) {
if logger.Level >= DebugLevel {
NewEntry(logger).Debug(args...)
}
}
func (logger *Logger) Info(args ...interface{}) {
if logger.Level >= InfoLevel {
NewEntry(logger).Info(args...)
}
}
func (logger *Logger) Print(args ...interface{}) {
NewEntry(logger).Info(args...)
}
func (logger *Logger) Warn(args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warn(args...)
}
}
func (logger *Logger) Warning(args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warn(args...)
}
}
func (logger *Logger) Error(args ...interface{}) {
if logger.Level >= ErrorLevel {
NewEntry(logger).Error(args...)
}
}
func (logger *Logger) Fatal(args ...interface{}) {
if logger.Level >= FatalLevel {
NewEntry(logger).Fatal(args...)
}
os.Exit(1)
}
func (logger *Logger) Panic(args ...interface{}) {
if logger.Level >= PanicLevel {
NewEntry(logger).Panic(args...)
}
}
func (logger *Logger) Debugln(args ...interface{}) {
if logger.Level >= DebugLevel {
NewEntry(logger).Debugln(args...)
}
}
func (logger *Logger) Infoln(args ...interface{}) {
if logger.Level >= InfoLevel {
NewEntry(logger).Infoln(args...)
}
}
func (logger *Logger) Println(args ...interface{}) {
NewEntry(logger).Println(args...)
}
func (logger *Logger) Warnln(args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warnln(args...)
}
}
func (logger *Logger) Warningln(args ...interface{}) {
if logger.Level >= WarnLevel {
NewEntry(logger).Warnln(args...)
}
}
func (logger *Logger) Errorln(args ...interface{}) {
if logger.Level >= ErrorLevel {
NewEntry(logger).Errorln(args...)
}
}
func (logger *Logger) Fatalln(args ...interface{}) {
if logger.Level >= FatalLevel {
NewEntry(logger).Fatalln(args...)
}
os.Exit(1)
}
func (logger *Logger) Panicln(args ...interface{}) {
if logger.Level >= PanicLevel {
NewEntry(logger).Panicln(args...)
}
}

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package logrus
import (
"fmt"
"log"
)
// Fields type, used to pass to `WithFields`.
type Fields map[string]interface{}
// Level type
type Level uint8
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {
switch level {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warning"
case ErrorLevel:
return "error"
case FatalLevel:
return "fatal"
case PanicLevel:
return "panic"
}
return "unknown"
}
// ParseLevel takes a string level and returns the Logrus log level constant.
func ParseLevel(lvl string) (Level, error) {
switch lvl {
case "panic":
return PanicLevel, nil
case "fatal":
return FatalLevel, nil
case "error":
return ErrorLevel, nil
case "warn", "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
}
var l Level
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
}
// These are the different logging levels. You can set the logging level to log
// on your instance of logger, obtained with `logrus.New()`.
const (
// PanicLevel level, highest level of severity. Logs and then calls panic with the
// message passed to Debug, Info, ...
PanicLevel Level = iota
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
// logging level is set to Panic.
FatalLevel
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
// Commonly used for hooks to send errors to an error tracking service.
ErrorLevel
// WarnLevel level. Non-critical entries that deserve eyes.
WarnLevel
// InfoLevel level. General operational entries about what's going on inside the
// application.
InfoLevel
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
DebugLevel
)
// Won't compile if StdLogger can't be realized by a log.Logger
var _ StdLogger = &log.Logger{}
// StdLogger is what your logrus-enabled library should take, that way
// it'll accept a stdlib logger and a logrus logger. There's no standard
// interface, this is the closest we get, unfortunately.
type StdLogger interface {
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
Fatal(...interface{})
Fatalf(string, ...interface{})
Fatalln(...interface{})
Panic(...interface{})
Panicf(string, ...interface{})
Panicln(...interface{})
}

12
vendor/github.com/Sirupsen/logrus/terminal_darwin.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package logrus
import "syscall"
const ioctlReadTermios = syscall.TIOCGETA
type Termios syscall.Termios

20
vendor/github.com/Sirupsen/logrus/terminal_freebsd.go generated vendored Normal file
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/*
Go 1.2 doesn't include Termios for FreeBSD. This should be added in 1.3 and this could be merged with terminal_darwin.
*/
package logrus
import (
"syscall"
)
const ioctlReadTermios = syscall.TIOCGETA
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]uint8
Ispeed uint32
Ospeed uint32
}

12
vendor/github.com/Sirupsen/logrus/terminal_linux.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package logrus
import "syscall"
const ioctlReadTermios = syscall.TCGETS
type Termios syscall.Termios

21
vendor/github.com/Sirupsen/logrus/terminal_notwindows.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux darwin freebsd openbsd
package logrus
import (
"syscall"
"unsafe"
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stdout
var termios Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

7
vendor/github.com/Sirupsen/logrus/terminal_openbsd.go generated vendored Normal file
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package logrus
import "syscall"
const ioctlReadTermios = syscall.TIOCGETA
type Termios syscall.Termios

27
vendor/github.com/Sirupsen/logrus/terminal_windows.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package logrus
import (
"syscall"
"unsafe"
)
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var (
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stdout
var st uint32
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
return r != 0 && e == 0
}

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package logrus
import (
"bytes"
"fmt"
"runtime"
"sort"
"strings"
"time"
)
const (
nocolor = 0
red = 31
green = 32
yellow = 33
blue = 34
gray = 37
)
var (
baseTimestamp time.Time
isTerminal bool
)
func init() {
baseTimestamp = time.Now()
isTerminal = IsTerminal()
}
func miniTS() int {
return int(time.Since(baseTimestamp) / time.Second)
}
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
// Force disabling colors.
DisableColors bool
// Disable timestamp logging. useful when output is redirected to logging
// system that already adds timestamps.
DisableTimestamp bool
// Enable logging the full timestamp when a TTY is attached instead of just
// the time passed since beginning of execution.
FullTimestamp bool
// TimestampFormat to use for display when a full timestamp is printed
TimestampFormat string
// The fields are sorted by default for a consistent output. For applications
// that log extremely frequently and don't use the JSON formatter this may not
// be desired.
DisableSorting bool
}
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
var keys []string = make([]string, 0, len(entry.Data))
for k := range entry.Data {
keys = append(keys, k)
}
if !f.DisableSorting {
sort.Strings(keys)
}
b := &bytes.Buffer{}
prefixFieldClashes(entry.Data)
isColorTerminal := isTerminal && (runtime.GOOS != "windows")
isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
if f.TimestampFormat == "" {
f.TimestampFormat = DefaultTimestampFormat
}
if isColored {
f.printColored(b, entry, keys)
} else {
if !f.DisableTimestamp {
f.appendKeyValue(b, "time", entry.Time.Format(f.TimestampFormat))
}
f.appendKeyValue(b, "level", entry.Level.String())
f.appendKeyValue(b, "msg", entry.Message)
for _, key := range keys {
f.appendKeyValue(b, key, entry.Data[key])
}
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string) {
var levelColor int
switch entry.Level {
case DebugLevel:
levelColor = gray
case WarnLevel:
levelColor = yellow
case ErrorLevel, FatalLevel, PanicLevel:
levelColor = red
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())[0:4]
if !f.FullTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
} else {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(f.TimestampFormat), entry.Message)
}
for _, k := range keys {
v := entry.Data[k]
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%v", levelColor, k, v)
}
}
func needsQuoting(text string) bool {
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '-' || ch == '.') {
return false
}
}
return true
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key, value interface{}) {
switch value.(type) {
case string:
if needsQuoting(value.(string)) {
fmt.Fprintf(b, "%v=%s ", key, value)
} else {
fmt.Fprintf(b, "%v=%q ", key, value)
}
case error:
if needsQuoting(value.(error).Error()) {
fmt.Fprintf(b, "%v=%s ", key, value)
} else {
fmt.Fprintf(b, "%v=%q ", key, value)
}
default:
fmt.Fprintf(b, "%v=%v ", key, value)
}
}

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vendor/github.com/Sirupsen/logrus/writer.go generated vendored Normal file
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package logrus
import (
"bufio"
"io"
"runtime"
)
func (logger *Logger) Writer() *io.PipeWriter {
reader, writer := io.Pipe()
go logger.writerScanner(reader)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (logger *Logger) writerScanner(reader *io.PipeReader) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
logger.Print(scanner.Text())
}
if err := scanner.Err(); err != nil {
logger.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}

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// Package quantile computes approximate quantiles over an unbounded data
// stream within low memory and CPU bounds.
//
// A small amount of accuracy is traded to achieve the above properties.
//
// Multiple streams can be merged before calling Query to generate a single set
// of results. This is meaningful when the streams represent the same type of
// data. See Merge and Samples.
//
// For more detailed information about the algorithm used, see:
//
// Effective Computation of Biased Quantiles over Data Streams
//
// http://www.cs.rutgers.edu/~muthu/bquant.pdf
package quantile
import (
"math"
"sort"
)
// Sample holds an observed value and meta information for compression. JSON
// tags have been added for convenience.
type Sample struct {
Value float64 `json:",string"`
Width float64 `json:",string"`
Delta float64 `json:",string"`
}
// Samples represents a slice of samples. It implements sort.Interface.
type Samples []Sample
func (a Samples) Len() int { return len(a) }
func (a Samples) Less(i, j int) bool { return a[i].Value < a[j].Value }
func (a Samples) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
type invariant func(s *stream, r float64) float64
// NewLowBiased returns an initialized Stream for low-biased quantiles
// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
// error guarantees can still be given even for the lower ranks of the data
// distribution.
//
// The provided epsilon is a relative error, i.e. the true quantile of a value
// returned by a query is guaranteed to be within (1±Epsilon)*Quantile.
//
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
// properties.
func NewLowBiased(epsilon float64) *Stream {
ƒ := func(s *stream, r float64) float64 {
return 2 * epsilon * r
}
return newStream(ƒ)
}
// NewHighBiased returns an initialized Stream for high-biased quantiles
// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
// error guarantees can still be given even for the higher ranks of the data
// distribution.
//
// The provided epsilon is a relative error, i.e. the true quantile of a value
// returned by a query is guaranteed to be within 1-(1±Epsilon)*(1-Quantile).
//
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
// properties.
func NewHighBiased(epsilon float64) *Stream {
ƒ := func(s *stream, r float64) float64 {
return 2 * epsilon * (s.n - r)
}
return newStream(ƒ)
}
// NewTargeted returns an initialized Stream concerned with a particular set of
// quantile values that are supplied a priori. Knowing these a priori reduces
// space and computation time. The targets map maps the desired quantiles to
// their absolute errors, i.e. the true quantile of a value returned by a query
// is guaranteed to be within (Quantile±Epsilon).
//
// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error properties.
func NewTargeted(targets map[float64]float64) *Stream {
ƒ := func(s *stream, r float64) float64 {
var m = math.MaxFloat64
var f float64
for quantile, epsilon := range targets {
if quantile*s.n <= r {
f = (2 * epsilon * r) / quantile
} else {
f = (2 * epsilon * (s.n - r)) / (1 - quantile)
}
if f < m {
m = f
}
}
return m
}
return newStream(ƒ)
}
// Stream computes quantiles for a stream of float64s. It is not thread-safe by
// design. Take care when using across multiple goroutines.
type Stream struct {
*stream
b Samples
sorted bool
}
func newStream(ƒ invariant) *Stream {
x := &stream{ƒ: ƒ}
return &Stream{x, make(Samples, 0, 500), true}
}
// Insert inserts v into the stream.
func (s *Stream) Insert(v float64) {
s.insert(Sample{Value: v, Width: 1})
}
func (s *Stream) insert(sample Sample) {
s.b = append(s.b, sample)
s.sorted = false
if len(s.b) == cap(s.b) {
s.flush()
}
}
// Query returns the computed qth percentiles value. If s was created with
// NewTargeted, and q is not in the set of quantiles provided a priori, Query
// will return an unspecified result.
func (s *Stream) Query(q float64) float64 {
if !s.flushed() {
// Fast path when there hasn't been enough data for a flush;
// this also yields better accuracy for small sets of data.
l := len(s.b)
if l == 0 {
return 0
}
i := int(float64(l) * q)
if i > 0 {
i -= 1
}
s.maybeSort()
return s.b[i].Value
}
s.flush()
return s.stream.query(q)
}
// Merge merges samples into the underlying streams samples. This is handy when
// merging multiple streams from separate threads, database shards, etc.
//
// ATTENTION: This method is broken and does not yield correct results. The
// underlying algorithm is not capable of merging streams correctly.
func (s *Stream) Merge(samples Samples) {
sort.Sort(samples)
s.stream.merge(samples)
}
// Reset reinitializes and clears the list reusing the samples buffer memory.
func (s *Stream) Reset() {
s.stream.reset()
s.b = s.b[:0]
}
// Samples returns stream samples held by s.
func (s *Stream) Samples() Samples {
if !s.flushed() {
return s.b
}
s.flush()
return s.stream.samples()
}
// Count returns the total number of samples observed in the stream
// since initialization.
func (s *Stream) Count() int {
return len(s.b) + s.stream.count()
}
func (s *Stream) flush() {
s.maybeSort()
s.stream.merge(s.b)
s.b = s.b[:0]
}
func (s *Stream) maybeSort() {
if !s.sorted {
s.sorted = true
sort.Sort(s.b)
}
}
func (s *Stream) flushed() bool {
return len(s.stream.l) > 0
}
type stream struct {
n float64
l []Sample
ƒ invariant
}
func (s *stream) reset() {
s.l = s.l[:0]
s.n = 0
}
func (s *stream) insert(v float64) {
s.merge(Samples{{v, 1, 0}})
}
func (s *stream) merge(samples Samples) {
// TODO(beorn7): This tries to merge not only individual samples, but
// whole summaries. The paper doesn't mention merging summaries at
// all. Unittests show that the merging is inaccurate. Find out how to
// do merges properly.
var r float64
i := 0
for _, sample := range samples {
for ; i < len(s.l); i++ {
c := s.l[i]
if c.Value > sample.Value {
// Insert at position i.
s.l = append(s.l, Sample{})
copy(s.l[i+1:], s.l[i:])
s.l[i] = Sample{
sample.Value,
sample.Width,
math.Max(sample.Delta, math.Floor(s.ƒ(s, r))-1),
// TODO(beorn7): How to calculate delta correctly?
}
i++
goto inserted
}
r += c.Width
}
s.l = append(s.l, Sample{sample.Value, sample.Width, 0})
i++
inserted:
s.n += sample.Width
r += sample.Width
}
s.compress()
}
func (s *stream) count() int {
return int(s.n)
}
func (s *stream) query(q float64) float64 {
t := math.Ceil(q * s.n)
t += math.Ceil(s.ƒ(s, t) / 2)
p := s.l[0]
var r float64
for _, c := range s.l[1:] {
r += p.Width
if r+c.Width+c.Delta > t {
return p.Value
}
p = c
}
return p.Value
}
func (s *stream) compress() {
if len(s.l) < 2 {
return
}
x := s.l[len(s.l)-1]
xi := len(s.l) - 1
r := s.n - 1 - x.Width
for i := len(s.l) - 2; i >= 0; i-- {
c := s.l[i]
if c.Width+x.Width+x.Delta <= s.ƒ(s, r) {
x.Width += c.Width
s.l[xi] = x
// Remove element at i.
copy(s.l[i:], s.l[i+1:])
s.l = s.l[:len(s.l)-1]
xi -= 1
} else {
x = c
xi = i
}
r -= c.Width
}
}
func (s *stream) samples() Samples {
samples := make(Samples, len(s.l))
copy(samples, s.l)
return samples
}

22
vendor/github.com/blang/semver/LICENSE generated vendored Normal file
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The MIT License
Copyright (c) 2014 Benedikt Lang <github at benediktlang.de>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

142
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semver for golang [![Build Status](https://drone.io/github.com/blang/semver/status.png)](https://drone.io/github.com/blang/semver/latest) [![GoDoc](https://godoc.org/github.com/blang/semver?status.png)](https://godoc.org/github.com/blang/semver) [![Coverage Status](https://img.shields.io/coveralls/blang/semver.svg)](https://coveralls.io/r/blang/semver?branch=master)
======
semver is a [Semantic Versioning](http://semver.org/) library written in golang. It fully covers spec version `2.0.0`.
Usage
-----
```bash
$ go get github.com/blang/semver
```
Note: Always vendor your dependencies or fix on a specific version tag.
```go
import github.com/blang/semver
v1, err := semver.Make("1.0.0-beta")
v2, err := semver.Make("2.0.0-beta")
v1.Compare(v2)
```
Also check the [GoDocs](http://godoc.org/github.com/blang/semver).
Why should I use this lib?
-----
- Fully spec compatible
- No reflection
- No regex
- Fully tested (Coverage >99%)
- Readable parsing/validation errors
- Fast (See [Benchmarks](#benchmarks))
- Only Stdlib
- Uses values instead of pointers
- Many features, see below
Features
-----
- Parsing and validation at all levels
- Comparator-like comparisons
- Compare Helper Methods
- InPlace manipulation
- Sortable (implements sort.Interface)
- database/sql compatible (sql.Scanner/Valuer)
- encoding/json compatible (json.Marshaler/Unmarshaler)
Example
-----
Have a look at full examples in [examples/main.go](examples/main.go)
```go
import github.com/blang/semver
v, err := semver.Make("0.0.1-alpha.preview+123.github")
fmt.Printf("Major: %d\n", v.Major)
fmt.Printf("Minor: %d\n", v.Minor)
fmt.Printf("Patch: %d\n", v.Patch)
fmt.Printf("Pre: %s\n", v.Pre)
fmt.Printf("Build: %s\n", v.Build)
// Prerelease versions array
if len(v.Pre) > 0 {
fmt.Println("Prerelease versions:")
for i, pre := range v.Pre {
fmt.Printf("%d: %q\n", i, pre)
}
}
// Build meta data array
if len(v.Build) > 0 {
fmt.Println("Build meta data:")
for i, build := range v.Build {
fmt.Printf("%d: %q\n", i, build)
}
}
v001, err := semver.Make("0.0.1")
// Compare using helpers: v.GT(v2), v.LT, v.GTE, v.LTE
v001.GT(v) == true
v.LT(v001) == true
v.GTE(v) == true
v.LTE(v) == true
// Or use v.Compare(v2) for comparisons (-1, 0, 1):
v001.Compare(v) == 1
v.Compare(v001) == -1
v.Compare(v) == 0
// Manipulate Version in place:
v.Pre[0], err = semver.NewPRVersion("beta")
if err != nil {
fmt.Printf("Error parsing pre release version: %q", err)
}
fmt.Println("\nValidate versions:")
v.Build[0] = "?"
err = v.Validate()
if err != nil {
fmt.Printf("Validation failed: %s\n", err)
}
```
Benchmarks
-----
BenchmarkParseSimple 5000000 328 ns/op 49 B/op 1 allocs/op
BenchmarkParseComplex 1000000 2105 ns/op 263 B/op 7 allocs/op
BenchmarkParseAverage 1000000 1301 ns/op 168 B/op 4 allocs/op
BenchmarkStringSimple 10000000 130 ns/op 5 B/op 1 allocs/op
BenchmarkStringLarger 5000000 280 ns/op 32 B/op 2 allocs/op
BenchmarkStringComplex 3000000 512 ns/op 80 B/op 3 allocs/op
BenchmarkStringAverage 5000000 387 ns/op 47 B/op 2 allocs/op
BenchmarkValidateSimple 500000000 7.92 ns/op 0 B/op 0 allocs/op
BenchmarkValidateComplex 2000000 923 ns/op 0 B/op 0 allocs/op
BenchmarkValidateAverage 5000000 452 ns/op 0 B/op 0 allocs/op
BenchmarkCompareSimple 100000000 11.2 ns/op 0 B/op 0 allocs/op
BenchmarkCompareComplex 50000000 40.9 ns/op 0 B/op 0 allocs/op
BenchmarkCompareAverage 50000000 43.8 ns/op 0 B/op 0 allocs/op
BenchmarkSort 5000000 436 ns/op 259 B/op 2 allocs/op
See benchmark cases at [semver_test.go](semver_test.go)
Motivation
-----
I simply couldn't find any lib supporting the full spec. Others were just wrong or used reflection and regex which i don't like.
Contribution
-----
Feel free to make a pull request. For bigger changes create a issue first to discuss about it.
License
-----
See [LICENSE](LICENSE) file.

23
vendor/github.com/blang/semver/json.go generated vendored Normal file
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package semver
import (
"encoding/json"
)
// MarshalJSON implements the encoding/json.Marshaler interface.
func (v Version) MarshalJSON() ([]byte, error) {
return json.Marshal(v.String())
}
// UnmarshalJSON implements the encoding/json.Unmarshaler interface.
func (v *Version) UnmarshalJSON(data []byte) (err error) {
var versionString string
if err = json.Unmarshal(data, &versionString); err != nil {
return
}
*v, err = Parse(versionString)
return
}

395
vendor/github.com/blang/semver/semver.go generated vendored Normal file
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package semver
import (
"errors"
"fmt"
"strconv"
"strings"
)
const (
numbers string = "0123456789"
alphas = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-"
alphanum = alphas + numbers
)
// SpecVersion is the latest fully supported spec version of semver
var SpecVersion = Version{
Major: 2,
Minor: 0,
Patch: 0,
}
// Version represents a semver compatible version
type Version struct {
Major uint64
Minor uint64
Patch uint64
Pre []PRVersion
Build []string //No Precendence
}
// Version to string
func (v Version) String() string {
b := make([]byte, 0, 5)
b = strconv.AppendUint(b, v.Major, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Minor, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Patch, 10)
if len(v.Pre) > 0 {
b = append(b, '-')
b = append(b, v.Pre[0].String()...)
for _, pre := range v.Pre[1:] {
b = append(b, '.')
b = append(b, pre.String()...)
}
}
if len(v.Build) > 0 {
b = append(b, '+')
b = append(b, v.Build[0]...)
for _, build := range v.Build[1:] {
b = append(b, '.')
b = append(b, build...)
}
}
return string(b)
}
// Equals checks if v is equal to o.
func (v Version) Equals(o Version) bool {
return (v.Compare(o) == 0)
}
// EQ checks if v is equal to o.
func (v Version) EQ(o Version) bool {
return (v.Compare(o) == 0)
}
// NE checks if v is not equal to o.
func (v Version) NE(o Version) bool {
return (v.Compare(o) != 0)
}
// GT checks if v is greater than o.
func (v Version) GT(o Version) bool {
return (v.Compare(o) == 1)
}
// GTE checks if v is greater than or equal to o.
func (v Version) GTE(o Version) bool {
return (v.Compare(o) >= 0)
}
// GE checks if v is greater than or equal to o.
func (v Version) GE(o Version) bool {
return (v.Compare(o) >= 0)
}
// LT checks if v is less than o.
func (v Version) LT(o Version) bool {
return (v.Compare(o) == -1)
}
// LTE checks if v is less than or equal to o.
func (v Version) LTE(o Version) bool {
return (v.Compare(o) <= 0)
}
// LE checks if v is less than or equal to o.
func (v Version) LE(o Version) bool {
return (v.Compare(o) <= 0)
}
// Compare compares Versions v to o:
// -1 == v is less than o
// 0 == v is equal to o
// 1 == v is greater than o
func (v Version) Compare(o Version) int {
if v.Major != o.Major {
if v.Major > o.Major {
return 1
}
return -1
}
if v.Minor != o.Minor {
if v.Minor > o.Minor {
return 1
}
return -1
}
if v.Patch != o.Patch {
if v.Patch > o.Patch {
return 1
}
return -1
}
// Quick comparison if a version has no prerelease versions
if len(v.Pre) == 0 && len(o.Pre) == 0 {
return 0
} else if len(v.Pre) == 0 && len(o.Pre) > 0 {
return 1
} else if len(v.Pre) > 0 && len(o.Pre) == 0 {
return -1
}
i := 0
for ; i < len(v.Pre) && i < len(o.Pre); i++ {
if comp := v.Pre[i].Compare(o.Pre[i]); comp == 0 {
continue
} else if comp == 1 {
return 1
} else {
return -1
}
}
// If all pr versions are the equal but one has further prversion, this one greater
if i == len(v.Pre) && i == len(o.Pre) {
return 0
} else if i == len(v.Pre) && i < len(o.Pre) {
return -1
} else {
return 1
}
}
// Validate validates v and returns error in case
func (v Version) Validate() error {
// Major, Minor, Patch already validated using uint64
for _, pre := range v.Pre {
if !pre.IsNum { //Numeric prerelease versions already uint64
if len(pre.VersionStr) == 0 {
return fmt.Errorf("Prerelease can not be empty %q", pre.VersionStr)
}
if !containsOnly(pre.VersionStr, alphanum) {
return fmt.Errorf("Invalid character(s) found in prerelease %q", pre.VersionStr)
}
}
}
for _, build := range v.Build {
if len(build) == 0 {
return fmt.Errorf("Build meta data can not be empty %q", build)
}
if !containsOnly(build, alphanum) {
return fmt.Errorf("Invalid character(s) found in build meta data %q", build)
}
}
return nil
}
// New is an alias for Parse and returns a pointer, parses version string and returns a validated Version or error
func New(s string) (vp *Version, err error) {
v, err := Parse(s)
vp = &v
return
}
// Make is an alias for Parse, parses version string and returns a validated Version or error
func Make(s string) (Version, error) {
return Parse(s)
}
// Parse parses version string and returns a validated Version or error
func Parse(s string) (Version, error) {
if len(s) == 0 {
return Version{}, errors.New("Version string empty")
}
// Split into major.minor.(patch+pr+meta)
parts := strings.SplitN(s, ".", 3)
if len(parts) != 3 {
return Version{}, errors.New("No Major.Minor.Patch elements found")
}
// Major
if !containsOnly(parts[0], numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in major number %q", parts[0])
}
if hasLeadingZeroes(parts[0]) {
return Version{}, fmt.Errorf("Major number must not contain leading zeroes %q", parts[0])
}
major, err := strconv.ParseUint(parts[0], 10, 64)
if err != nil {
return Version{}, err
}
// Minor
if !containsOnly(parts[1], numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in minor number %q", parts[1])
}
if hasLeadingZeroes(parts[1]) {
return Version{}, fmt.Errorf("Minor number must not contain leading zeroes %q", parts[1])
}
minor, err := strconv.ParseUint(parts[1], 10, 64)
if err != nil {
return Version{}, err
}
v := Version{}
v.Major = major
v.Minor = minor
var build, prerelease []string
patchStr := parts[2]
if buildIndex := strings.IndexRune(patchStr, '+'); buildIndex != -1 {
build = strings.Split(patchStr[buildIndex+1:], ".")
patchStr = patchStr[:buildIndex]
}
if preIndex := strings.IndexRune(patchStr, '-'); preIndex != -1 {
prerelease = strings.Split(patchStr[preIndex+1:], ".")
patchStr = patchStr[:preIndex]
}
if !containsOnly(patchStr, numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in patch number %q", patchStr)
}
if hasLeadingZeroes(patchStr) {
return Version{}, fmt.Errorf("Patch number must not contain leading zeroes %q", patchStr)
}
patch, err := strconv.ParseUint(patchStr, 10, 64)
if err != nil {
return Version{}, err
}
v.Patch = patch
// Prerelease
for _, prstr := range prerelease {
parsedPR, err := NewPRVersion(prstr)
if err != nil {
return Version{}, err
}
v.Pre = append(v.Pre, parsedPR)
}
// Build meta data
for _, str := range build {
if len(str) == 0 {
return Version{}, errors.New("Build meta data is empty")
}
if !containsOnly(str, alphanum) {
return Version{}, fmt.Errorf("Invalid character(s) found in build meta data %q", str)
}
v.Build = append(v.Build, str)
}
return v, nil
}
// MustParse is like Parse but panics if the version cannot be parsed.
func MustParse(s string) Version {
v, err := Parse(s)
if err != nil {
panic(`semver: Parse(` + s + `): ` + err.Error())
}
return v
}
// PRVersion represents a PreRelease Version
type PRVersion struct {
VersionStr string
VersionNum uint64
IsNum bool
}
// NewPRVersion creates a new valid prerelease version
func NewPRVersion(s string) (PRVersion, error) {
if len(s) == 0 {
return PRVersion{}, errors.New("Prerelease is empty")
}
v := PRVersion{}
if containsOnly(s, numbers) {
if hasLeadingZeroes(s) {
return PRVersion{}, fmt.Errorf("Numeric PreRelease version must not contain leading zeroes %q", s)
}
num, err := strconv.ParseUint(s, 10, 64)
// Might never be hit, but just in case
if err != nil {
return PRVersion{}, err
}
v.VersionNum = num
v.IsNum = true
} else if containsOnly(s, alphanum) {
v.VersionStr = s
v.IsNum = false
} else {
return PRVersion{}, fmt.Errorf("Invalid character(s) found in prerelease %q", s)
}
return v, nil
}
// IsNumeric checks if prerelease-version is numeric
func (v PRVersion) IsNumeric() bool {
return v.IsNum
}
// Compare compares two PreRelease Versions v and o:
// -1 == v is less than o
// 0 == v is equal to o
// 1 == v is greater than o
func (v PRVersion) Compare(o PRVersion) int {
if v.IsNum && !o.IsNum {
return -1
} else if !v.IsNum && o.IsNum {
return 1
} else if v.IsNum && o.IsNum {
if v.VersionNum == o.VersionNum {
return 0
} else if v.VersionNum > o.VersionNum {
return 1
} else {
return -1
}
} else { // both are Alphas
if v.VersionStr == o.VersionStr {
return 0
} else if v.VersionStr > o.VersionStr {
return 1
} else {
return -1
}
}
}
// PreRelease version to string
func (v PRVersion) String() string {
if v.IsNum {
return strconv.FormatUint(v.VersionNum, 10)
}
return v.VersionStr
}
func containsOnly(s string, set string) bool {
return strings.IndexFunc(s, func(r rune) bool {
return !strings.ContainsRune(set, r)
}) == -1
}
func hasLeadingZeroes(s string) bool {
return len(s) > 1 && s[0] == '0'
}
// NewBuildVersion creates a new valid build version
func NewBuildVersion(s string) (string, error) {
if len(s) == 0 {
return "", errors.New("Buildversion is empty")
}
if !containsOnly(s, alphanum) {
return "", fmt.Errorf("Invalid character(s) found in build meta data %q", s)
}
return s, nil
}

28
vendor/github.com/blang/semver/sort.go generated vendored Normal file
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package semver
import (
"sort"
)
// Versions represents multiple versions.
type Versions []Version
// Len returns length of version collection
func (s Versions) Len() int {
return len(s)
}
// Swap swaps two versions inside the collection by its indices
func (s Versions) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
// Less checks if version at index i is less than version at index j
func (s Versions) Less(i, j int) bool {
return s[i].LT(s[j])
}
// Sort sorts a slice of versions
func Sort(versions []Version) {
sort.Sort(Versions(versions))
}

30
vendor/github.com/blang/semver/sql.go generated vendored Normal file
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package semver
import (
"database/sql/driver"
"fmt"
)
// Scan implements the database/sql.Scanner interface.
func (v *Version) Scan(src interface{}) (err error) {
var str string
switch src := src.(type) {
case string:
str = src
case []byte:
str = string(src)
default:
return fmt.Errorf("Version.Scan: cannot convert %T to string.", src)
}
if t, err := Parse(str); err == nil {
*v = t
}
return
}
// Value implements the database/sql/driver.Valuer interface.
func (v Version) Value() (driver.Value, error) {
return v.String(), nil
}

1
vendor/github.com/cloudfoundry-incubator/candiedyaml/.gitignore generated vendored Normal file
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@ -0,0 +1 @@
*.coverprofile

12
vendor/github.com/cloudfoundry-incubator/candiedyaml/.travis.yml generated vendored Normal file
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@ -0,0 +1,12 @@
language: go
go:
- 1.4.1
install:
- go get -t -v ./...
- go install github.com/onsi/ginkgo/ginkgo
script:
- export PATH=$HOME/gopath/bin:$PATH
- ginkgo -r -failOnPending -randomizeAllSpecs -race

203
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@ -0,0 +1,203 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
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Licensor for the purpose of discussing and improving the Work, but
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
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agreed to in writing, Licensor provides the Work (and each
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
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on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
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of your accepting any such warranty or additional liability.
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55
vendor/github.com/cloudfoundry-incubator/candiedyaml/README.md generated vendored Normal file
View File

@ -0,0 +1,55 @@
[![Build Status](https://travis-ci.org/cloudfoundry-incubator/candiedyaml.svg)](https://travis-ci.org/cloudfoundry-incubator/candiedyaml)
candiedyaml
===========
YAML for Go
A YAML 1.1 parser with support for YAML 1.2 features
Usage
-----
```go
package myApp
import (
"github.com/cloudfoundry-incubator/candiedyaml"
"fmt"
"os"
)
func main() {
file, err := os.Open("path/to/some/file.yml")
if err != nil {
println("File does not exist:", err.Error())
os.Exit(1)
}
document := new(interface{})
decoder := candiedyaml.NewDecoder(file)
err = decoder.Decode(document)
if err != nil {
println("Failed to decode document:", err.Error())
}
println("parsed yml into interface:", fmt.Sprintf("%#v", document))
fileToWrite, err := os.Create("path/to/some/new/file.yml")
if err != nil {
println("Failed to open file for writing:", err.Error())
os.Exit(1)
}
encoder := candiedyaml.NewEncoder(fileToWrite)
err = encoder.Encode(document)
if err != nil {
println("Failed to encode document:", err.Error())
os.Exit(1)
}
return
}
```

834
vendor/github.com/cloudfoundry-incubator/candiedyaml/api.go generated vendored Normal file
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@ -0,0 +1,834 @@
/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"io"
)
/*
* Create a new parser object.
*/
func yaml_parser_initialize(parser *yaml_parser_t) bool {
*parser = yaml_parser_t{
raw_buffer: make([]byte, 0, INPUT_RAW_BUFFER_SIZE),
buffer: make([]byte, 0, INPUT_BUFFER_SIZE),
}
return true
}
/*
* Destroy a parser object.
*/
func yaml_parser_delete(parser *yaml_parser_t) {
*parser = yaml_parser_t{}
}
/*
* String read handler.
*/
func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (int, error) {
if parser.input_pos == len(parser.input) {
return 0, io.EOF
}
n := copy(buffer, parser.input[parser.input_pos:])
parser.input_pos += n
return n, nil
}
/*
* File read handler.
*/
func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (int, error) {
return parser.input_reader.Read(buffer)
}
/*
* Set a string input.
*/
func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
if parser.read_handler != nil {
panic("input already set")
}
parser.read_handler = yaml_string_read_handler
parser.input = input
parser.input_pos = 0
}
/*
* Set a reader input
*/
func yaml_parser_set_input_reader(parser *yaml_parser_t, reader io.Reader) {
if parser.read_handler != nil {
panic("input already set")
}
parser.read_handler = yaml_file_read_handler
parser.input_reader = reader
}
/*
* Set a generic input.
*/
func yaml_parser_set_input(parser *yaml_parser_t, handler yaml_read_handler_t) {
if parser.read_handler != nil {
panic("input already set")
}
parser.read_handler = handler
}
/*
* Set the source encoding.
*/
func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
if parser.encoding != yaml_ANY_ENCODING {
panic("encoding already set")
}
parser.encoding = encoding
}
/*
* Create a new emitter object.
*/
func yaml_emitter_initialize(emitter *yaml_emitter_t) {
*emitter = yaml_emitter_t{
buffer: make([]byte, OUTPUT_BUFFER_SIZE),
raw_buffer: make([]byte, 0, OUTPUT_RAW_BUFFER_SIZE),
states: make([]yaml_emitter_state_t, 0, INITIAL_STACK_SIZE),
events: make([]yaml_event_t, 0, INITIAL_QUEUE_SIZE),
}
}
func yaml_emitter_delete(emitter *yaml_emitter_t) {
*emitter = yaml_emitter_t{}
}
/*
* String write handler.
*/
func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
return nil
}
/*
* File write handler.
*/
func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
_, err := emitter.output_writer.Write(buffer)
return err
}
/*
* Set a string output.
*/
func yaml_emitter_set_output_string(emitter *yaml_emitter_t, buffer *[]byte) {
if emitter.write_handler != nil {
panic("output already set")
}
emitter.write_handler = yaml_string_write_handler
emitter.output_buffer = buffer
}
/*
* Set a file output.
*/
func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
if emitter.write_handler != nil {
panic("output already set")
}
emitter.write_handler = yaml_writer_write_handler
emitter.output_writer = w
}
/*
* Set a generic output handler.
*/
func yaml_emitter_set_output(emitter *yaml_emitter_t, handler yaml_write_handler_t) {
if emitter.write_handler != nil {
panic("output already set")
}
emitter.write_handler = handler
}
/*
* Set the output encoding.
*/
func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
if emitter.encoding != yaml_ANY_ENCODING {
panic("encoding already set")
}
emitter.encoding = encoding
}
/*
* Set the canonical output style.
*/
func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
emitter.canonical = canonical
}
/*
* Set the indentation increment.
*/
func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
if indent < 2 || indent > 9 {
indent = 2
}
emitter.best_indent = indent
}
/*
* Set the preferred line width.
*/
func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
if width < 0 {
width = -1
}
emitter.best_width = width
}
/*
* Set if unescaped non-ASCII characters are allowed.
*/
func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
emitter.unicode = unicode
}
/*
* Set the preferred line break character.
*/
func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
emitter.line_break = line_break
}
/*
* Destroy a token object.
*/
// yaml_DECLARE(void)
// yaml_token_delete(yaml_token_t *token)
// {
// assert(token); /* Non-NULL token object expected. */
//
// switch (token.type)
// {
// case yaml_TAG_DIRECTIVE_TOKEN:
// yaml_free(token.data.tag_directive.handle);
// yaml_free(token.data.tag_directive.prefix);
// break;
//
// case yaml_ALIAS_TOKEN:
// yaml_free(token.data.alias.value);
// break;
//
// case yaml_ANCHOR_TOKEN:
// yaml_free(token.data.anchor.value);
// break;
//
// case yaml_TAG_TOKEN:
// yaml_free(token.data.tag.handle);
// yaml_free(token.data.tag.suffix);
// break;
//
// case yaml_SCALAR_TOKEN:
// yaml_free(token.data.scalar.value);
// break;
//
// default:
// break;
// }
//
// memset(token, 0, sizeof(yaml_token_t));
// }
/*
* Check if a string is a valid UTF-8 sequence.
*
* Check 'reader.c' for more details on UTF-8 encoding.
*/
// static int
// yaml_check_utf8(yaml_char_t *start, size_t length)
// {
// yaml_char_t *end = start+length;
// yaml_char_t *pointer = start;
//
// while (pointer < end) {
// unsigned char octet;
// unsigned int width;
// unsigned int value;
// size_t k;
//
// octet = pointer[0];
// width = (octet & 0x80) == 0x00 ? 1 :
// (octet & 0xE0) == 0xC0 ? 2 :
// (octet & 0xF0) == 0xE0 ? 3 :
// (octet & 0xF8) == 0xF0 ? 4 : 0;
// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
// if (!width) return 0;
// if (pointer+width > end) return 0;
// for (k = 1; k < width; k ++) {
// octet = pointer[k];
// if ((octet & 0xC0) != 0x80) return 0;
// value = (value << 6) + (octet & 0x3F);
// }
// if (!((width == 1) ||
// (width == 2 && value >= 0x80) ||
// (width == 3 && value >= 0x800) ||
// (width == 4 && value >= 0x10000))) return 0;
//
// pointer += width;
// }
//
// return 1;
// }
/*
* Create STREAM-START.
*/
func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
*event = yaml_event_t{
event_type: yaml_STREAM_START_EVENT,
encoding: encoding,
}
}
/*
* Create STREAM-END.
*/
func yaml_stream_end_event_initialize(event *yaml_event_t) {
*event = yaml_event_t{
event_type: yaml_STREAM_END_EVENT,
}
}
/*
* Create DOCUMENT-START.
*/
func yaml_document_start_event_initialize(event *yaml_event_t,
version_directive *yaml_version_directive_t,
tag_directives []yaml_tag_directive_t,
implicit bool) {
*event = yaml_event_t{
event_type: yaml_DOCUMENT_START_EVENT,
version_directive: version_directive,
tag_directives: tag_directives,
implicit: implicit,
}
}
/*
* Create DOCUMENT-END.
*/
func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
*event = yaml_event_t{
event_type: yaml_DOCUMENT_END_EVENT,
implicit: implicit,
}
}
/*
* Create ALIAS.
*/
func yaml_alias_event_initialize(event *yaml_event_t, anchor []byte) {
*event = yaml_event_t{
event_type: yaml_ALIAS_EVENT,
anchor: anchor,
}
}
/*
* Create SCALAR.
*/
func yaml_scalar_event_initialize(event *yaml_event_t,
anchor []byte, tag []byte,
value []byte,
plain_implicit bool, quoted_implicit bool,
style yaml_scalar_style_t) {
*event = yaml_event_t{
event_type: yaml_SCALAR_EVENT,
anchor: anchor,
tag: tag,
value: value,
implicit: plain_implicit,
quoted_implicit: quoted_implicit,
style: yaml_style_t(style),
}
}
/*
* Create SEQUENCE-START.
*/
func yaml_sequence_start_event_initialize(event *yaml_event_t,
anchor []byte, tag []byte, implicit bool, style yaml_sequence_style_t) {
*event = yaml_event_t{
event_type: yaml_SEQUENCE_START_EVENT,
anchor: anchor,
tag: tag,
implicit: implicit,
style: yaml_style_t(style),
}
}
/*
* Create SEQUENCE-END.
*/
func yaml_sequence_end_event_initialize(event *yaml_event_t) {
*event = yaml_event_t{
event_type: yaml_SEQUENCE_END_EVENT,
}
}
/*
* Create MAPPING-START.
*/
func yaml_mapping_start_event_initialize(event *yaml_event_t,
anchor []byte, tag []byte, implicit bool, style yaml_mapping_style_t) {
*event = yaml_event_t{
event_type: yaml_MAPPING_START_EVENT,
anchor: anchor,
tag: tag,
implicit: implicit,
style: yaml_style_t(style),
}
}
/*
* Create MAPPING-END.
*/
func yaml_mapping_end_event_initialize(event *yaml_event_t) {
*event = yaml_event_t{
event_type: yaml_MAPPING_END_EVENT,
}
}
/*
* Destroy an event object.
*/
func yaml_event_delete(event *yaml_event_t) {
*event = yaml_event_t{}
}
// /*
// * Create a document object.
// */
//
// func yaml_document_initialize(document *yaml_document_t,
// version_directive *yaml_version_directive_t,
// tag_directives []yaml_tag_directive_t,
// start_implicit, end_implicit bool) bool {
//
//
// {
// struct {
// YAML_error_type_t error;
// } context;
// struct {
// yaml_node_t *start;
// yaml_node_t *end;
// yaml_node_t *top;
// } nodes = { NULL, NULL, NULL };
// yaml_version_directive_t *version_directive_copy = NULL;
// struct {
// yaml_tag_directive_t *start;
// yaml_tag_directive_t *end;
// yaml_tag_directive_t *top;
// } tag_directives_copy = { NULL, NULL, NULL };
// yaml_tag_directive_t value = { NULL, NULL };
// YAML_mark_t mark = { 0, 0, 0 };
//
// assert(document); /* Non-NULL document object is expected. */
// assert((tag_directives_start && tag_directives_end) ||
// (tag_directives_start == tag_directives_end));
// /* Valid tag directives are expected. */
//
// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error;
//
// if (version_directive) {
// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t));
// if (!version_directive_copy) goto error;
// version_directive_copy.major = version_directive.major;
// version_directive_copy.minor = version_directive.minor;
// }
//
// if (tag_directives_start != tag_directives_end) {
// yaml_tag_directive_t *tag_directive;
// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
// goto error;
// for (tag_directive = tag_directives_start;
// tag_directive != tag_directives_end; tag_directive ++) {
// assert(tag_directive.handle);
// assert(tag_directive.prefix);
// if (!yaml_check_utf8(tag_directive.handle,
// strlen((char *)tag_directive.handle)))
// goto error;
// if (!yaml_check_utf8(tag_directive.prefix,
// strlen((char *)tag_directive.prefix)))
// goto error;
// value.handle = yaml_strdup(tag_directive.handle);
// value.prefix = yaml_strdup(tag_directive.prefix);
// if (!value.handle || !value.prefix) goto error;
// if (!PUSH(&context, tag_directives_copy, value))
// goto error;
// value.handle = NULL;
// value.prefix = NULL;
// }
// }
//
// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
// tag_directives_copy.start, tag_directives_copy.top,
// start_implicit, end_implicit, mark, mark);
//
// return 1;
//
// error:
// STACK_DEL(&context, nodes);
// yaml_free(version_directive_copy);
// while (!STACK_EMPTY(&context, tag_directives_copy)) {
// yaml_tag_directive_t value = POP(&context, tag_directives_copy);
// yaml_free(value.handle);
// yaml_free(value.prefix);
// }
// STACK_DEL(&context, tag_directives_copy);
// yaml_free(value.handle);
// yaml_free(value.prefix);
//
// return 0;
// }
//
// /*
// * Destroy a document object.
// */
//
// yaml_DECLARE(void)
// yaml_document_delete(document *yaml_document_t)
// {
// struct {
// YAML_error_type_t error;
// } context;
// yaml_tag_directive_t *tag_directive;
//
// context.error = yaml_NO_ERROR; /* Eliminate a compliler warning. */
//
// assert(document); /* Non-NULL document object is expected. */
//
// while (!STACK_EMPTY(&context, document.nodes)) {
// yaml_node_t node = POP(&context, document.nodes);
// yaml_free(node.tag);
// switch (node.type) {
// case yaml_SCALAR_NODE:
// yaml_free(node.data.scalar.value);
// break;
// case yaml_SEQUENCE_NODE:
// STACK_DEL(&context, node.data.sequence.items);
// break;
// case yaml_MAPPING_NODE:
// STACK_DEL(&context, node.data.mapping.pairs);
// break;
// default:
// assert(0); /* Should not happen. */
// }
// }
// STACK_DEL(&context, document.nodes);
//
// yaml_free(document.version_directive);
// for (tag_directive = document.tag_directives.start;
// tag_directive != document.tag_directives.end;
// tag_directive++) {
// yaml_free(tag_directive.handle);
// yaml_free(tag_directive.prefix);
// }
// yaml_free(document.tag_directives.start);
//
// memset(document, 0, sizeof(yaml_document_t));
// }
//
// /**
// * Get a document node.
// */
//
// yaml_DECLARE(yaml_node_t *)
// yaml_document_get_node(document *yaml_document_t, int index)
// {
// assert(document); /* Non-NULL document object is expected. */
//
// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
// return document.nodes.start + index - 1;
// }
// return NULL;
// }
//
// /**
// * Get the root object.
// */
//
// yaml_DECLARE(yaml_node_t *)
// yaml_document_get_root_node(document *yaml_document_t)
// {
// assert(document); /* Non-NULL document object is expected. */
//
// if (document.nodes.top != document.nodes.start) {
// return document.nodes.start;
// }
// return NULL;
// }
//
// /*
// * Add a scalar node to a document.
// */
//
// yaml_DECLARE(int)
// yaml_document_add_scalar(document *yaml_document_t,
// yaml_char_t *tag, yaml_char_t *value, int length,
// yaml_scalar_style_t style)
// {
// struct {
// YAML_error_type_t error;
// } context;
// YAML_mark_t mark = { 0, 0, 0 };
// yaml_char_t *tag_copy = NULL;
// yaml_char_t *value_copy = NULL;
// yaml_node_t node;
//
// assert(document); /* Non-NULL document object is expected. */
// assert(value); /* Non-NULL value is expected. */
//
// if (!tag) {
// tag = (yaml_char_t *)yaml_DEFAULT_SCALAR_TAG;
// }
//
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
// tag_copy = yaml_strdup(tag);
// if (!tag_copy) goto error;
//
// if (length < 0) {
// length = strlen((char *)value);
// }
//
// if (!yaml_check_utf8(value, length)) goto error;
// value_copy = yaml_malloc(length+1);
// if (!value_copy) goto error;
// memcpy(value_copy, value, length);
// value_copy[length] = '\0';
//
// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark);
// if (!PUSH(&context, document.nodes, node)) goto error;
//
// return document.nodes.top - document.nodes.start;
//
// error:
// yaml_free(tag_copy);
// yaml_free(value_copy);
//
// return 0;
// }
//
// /*
// * Add a sequence node to a document.
// */
//
// yaml_DECLARE(int)
// yaml_document_add_sequence(document *yaml_document_t,
// yaml_char_t *tag, yaml_sequence_style_t style)
// {
// struct {
// YAML_error_type_t error;
// } context;
// YAML_mark_t mark = { 0, 0, 0 };
// yaml_char_t *tag_copy = NULL;
// struct {
// yaml_node_item_t *start;
// yaml_node_item_t *end;
// yaml_node_item_t *top;
// } items = { NULL, NULL, NULL };
// yaml_node_t node;
//
// assert(document); /* Non-NULL document object is expected. */
//
// if (!tag) {
// tag = (yaml_char_t *)yaml_DEFAULT_SEQUENCE_TAG;
// }
//
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
// tag_copy = yaml_strdup(tag);
// if (!tag_copy) goto error;
//
// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error;
//
// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
// style, mark, mark);
// if (!PUSH(&context, document.nodes, node)) goto error;
//
// return document.nodes.top - document.nodes.start;
//
// error:
// STACK_DEL(&context, items);
// yaml_free(tag_copy);
//
// return 0;
// }
//
// /*
// * Add a mapping node to a document.
// */
//
// yaml_DECLARE(int)
// yaml_document_add_mapping(document *yaml_document_t,
// yaml_char_t *tag, yaml_mapping_style_t style)
// {
// struct {
// YAML_error_type_t error;
// } context;
// YAML_mark_t mark = { 0, 0, 0 };
// yaml_char_t *tag_copy = NULL;
// struct {
// yaml_node_pair_t *start;
// yaml_node_pair_t *end;
// yaml_node_pair_t *top;
// } pairs = { NULL, NULL, NULL };
// yaml_node_t node;
//
// assert(document); /* Non-NULL document object is expected. */
//
// if (!tag) {
// tag = (yaml_char_t *)yaml_DEFAULT_MAPPING_TAG;
// }
//
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
// tag_copy = yaml_strdup(tag);
// if (!tag_copy) goto error;
//
// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error;
//
// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
// style, mark, mark);
// if (!PUSH(&context, document.nodes, node)) goto error;
//
// return document.nodes.top - document.nodes.start;
//
// error:
// STACK_DEL(&context, pairs);
// yaml_free(tag_copy);
//
// return 0;
// }
//
// /*
// * Append an item to a sequence node.
// */
//
// yaml_DECLARE(int)
// yaml_document_append_sequence_item(document *yaml_document_t,
// int sequence, int item)
// {
// struct {
// YAML_error_type_t error;
// } context;
//
// assert(document); /* Non-NULL document is required. */
// assert(sequence > 0
// && document.nodes.start + sequence <= document.nodes.top);
// /* Valid sequence id is required. */
// assert(document.nodes.start[sequence-1].type == yaml_SEQUENCE_NODE);
// /* A sequence node is required. */
// assert(item > 0 && document.nodes.start + item <= document.nodes.top);
// /* Valid item id is required. */
//
// if (!PUSH(&context,
// document.nodes.start[sequence-1].data.sequence.items, item))
// return 0;
//
// return 1;
// }
//
// /*
// * Append a pair of a key and a value to a mapping node.
// */
//
// yaml_DECLARE(int)
// yaml_document_append_mapping_pair(document *yaml_document_t,
// int mapping, int key, int value)
// {
// struct {
// YAML_error_type_t error;
// } context;
//
// yaml_node_pair_t pair;
//
// assert(document); /* Non-NULL document is required. */
// assert(mapping > 0
// && document.nodes.start + mapping <= document.nodes.top);
// /* Valid mapping id is required. */
// assert(document.nodes.start[mapping-1].type == yaml_MAPPING_NODE);
// /* A mapping node is required. */
// assert(key > 0 && document.nodes.start + key <= document.nodes.top);
// /* Valid key id is required. */
// assert(value > 0 && document.nodes.start + value <= document.nodes.top);
// /* Valid value id is required. */
//
// pair.key = key;
// pair.value = value;
//
// if (!PUSH(&context,
// document.nodes.start[mapping-1].data.mapping.pairs, pair))
// return 0;
//
// return 1;
// }
//

622
vendor/github.com/cloudfoundry-incubator/candiedyaml/decode.go generated vendored Normal file
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@ -0,0 +1,622 @@
/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"bytes"
"errors"
"fmt"
"io"
"reflect"
"runtime"
"strconv"
"strings"
)
type Unmarshaler interface {
UnmarshalYAML(tag string, value interface{}) error
}
// A Number represents a JSON number literal.
type Number string
// String returns the literal text of the number.
func (n Number) String() string { return string(n) }
// Float64 returns the number as a float64.
func (n Number) Float64() (float64, error) {
return strconv.ParseFloat(string(n), 64)
}
// Int64 returns the number as an int64.
func (n Number) Int64() (int64, error) {
return strconv.ParseInt(string(n), 10, 64)
}
type Decoder struct {
parser yaml_parser_t
event yaml_event_t
replay_events []yaml_event_t
useNumber bool
anchors map[string][]yaml_event_t
tracking_anchors [][]yaml_event_t
}
type ParserError struct {
ErrorType YAML_error_type_t
Context string
ContextMark YAML_mark_t
Problem string
ProblemMark YAML_mark_t
}
func (e *ParserError) Error() string {
return fmt.Sprintf("yaml: [%s] %s at line %d, column %d", e.Context, e.Problem, e.ProblemMark.line+1, e.ProblemMark.column+1)
}
type UnexpectedEventError struct {
Value string
EventType yaml_event_type_t
At YAML_mark_t
}
func (e *UnexpectedEventError) Error() string {
return fmt.Sprintf("yaml: Unexpect event [%d]: '%s' at line %d, column %d", e.EventType, e.Value, e.At.line+1, e.At.column+1)
}
func recovery(err *error) {
if r := recover(); r != nil {
if _, ok := r.(runtime.Error); ok {
panic(r)
}
var tmpError error
switch r := r.(type) {
case error:
tmpError = r
case string:
tmpError = errors.New(r)
default:
tmpError = errors.New("Unknown panic: " + reflect.ValueOf(r).String())
}
*err = tmpError
}
}
func Unmarshal(data []byte, v interface{}) error {
d := NewDecoder(bytes.NewBuffer(data))
return d.Decode(v)
}
func NewDecoder(r io.Reader) *Decoder {
d := &Decoder{
anchors: make(map[string][]yaml_event_t),
tracking_anchors: make([][]yaml_event_t, 1),
}
yaml_parser_initialize(&d.parser)
yaml_parser_set_input_reader(&d.parser, r)
return d
}
func (d *Decoder) Decode(v interface{}) (err error) {
defer recovery(&err)
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Ptr || rv.IsNil() {
return fmt.Errorf("Expected a pointer or nil but was a %s at %s", rv.String(), d.event.start_mark)
}
if d.event.event_type == yaml_NO_EVENT {
d.nextEvent()
if d.event.event_type != yaml_STREAM_START_EVENT {
return errors.New("Invalid stream")
}
d.nextEvent()
}
d.document(rv)
return nil
}
func (d *Decoder) UseNumber() { d.useNumber = true }
func (d *Decoder) error(err error) {
panic(err)
}
func (d *Decoder) nextEvent() {
if d.event.event_type == yaml_STREAM_END_EVENT {
d.error(errors.New("The stream is closed"))
}
if d.replay_events != nil {
d.event = d.replay_events[0]
if len(d.replay_events) == 1 {
d.replay_events = nil
} else {
d.replay_events = d.replay_events[1:]
}
} else {
if !yaml_parser_parse(&d.parser, &d.event) {
yaml_event_delete(&d.event)
d.error(&ParserError{
ErrorType: d.parser.error,
Context: d.parser.context,
ContextMark: d.parser.context_mark,
Problem: d.parser.problem,
ProblemMark: d.parser.problem_mark,
})
}
}
last := len(d.tracking_anchors)
// skip aliases when tracking an anchor
if last > 0 && d.event.event_type != yaml_ALIAS_EVENT {
d.tracking_anchors[last-1] = append(d.tracking_anchors[last-1], d.event)
}
}
func (d *Decoder) document(rv reflect.Value) {
if d.event.event_type != yaml_DOCUMENT_START_EVENT {
d.error(fmt.Errorf("Expected document start at %s", d.event.start_mark))
}
d.nextEvent()
d.parse(rv)
if d.event.event_type != yaml_DOCUMENT_END_EVENT {
d.error(fmt.Errorf("Expected document end at %s", d.event.start_mark))
}
d.nextEvent()
}
func (d *Decoder) parse(rv reflect.Value) {
if !rv.IsValid() {
// skip ahead since we cannot store
d.valueInterface()
return
}
anchor := string(d.event.anchor)
switch d.event.event_type {
case yaml_SEQUENCE_START_EVENT:
d.begin_anchor(anchor)
d.sequence(rv)
d.end_anchor(anchor)
case yaml_MAPPING_START_EVENT:
d.begin_anchor(anchor)
d.mapping(rv)
d.end_anchor(anchor)
case yaml_SCALAR_EVENT:
d.begin_anchor(anchor)
d.scalar(rv)
d.end_anchor(anchor)
case yaml_ALIAS_EVENT:
d.alias(rv)
case yaml_DOCUMENT_END_EVENT:
default:
d.error(&UnexpectedEventError{
Value: string(d.event.value),
EventType: d.event.event_type,
At: d.event.start_mark,
})
}
}
func (d *Decoder) begin_anchor(anchor string) {
if anchor != "" {
events := []yaml_event_t{d.event}
d.tracking_anchors = append(d.tracking_anchors, events)
}
}
func (d *Decoder) end_anchor(anchor string) {
if anchor != "" {
events := d.tracking_anchors[len(d.tracking_anchors)-1]
d.tracking_anchors = d.tracking_anchors[0 : len(d.tracking_anchors)-1]
// remove the anchor, replaying events shouldn't have anchors
events[0].anchor = nil
// we went one too many, remove the extra event
events = events[:len(events)-1]
// if nested, append to all the other anchors
for i, e := range d.tracking_anchors {
d.tracking_anchors[i] = append(e, events...)
}
d.anchors[anchor] = events
}
}
func (d *Decoder) indirect(v reflect.Value, decodingNull bool) (Unmarshaler, reflect.Value) {
// If v is a named type and is addressable,
// start with its address, so that if the type has pointer methods,
// we find them.
if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() {
v = v.Addr()
}
for {
// Load value from interface, but only if the result will be
// usefully addressable.
if v.Kind() == reflect.Interface && !v.IsNil() {
e := v.Elem()
if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) {
v = e
continue
}
}
if v.Kind() != reflect.Ptr {
break
}
if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() {
break
}
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
if v.Type().NumMethod() > 0 {
if u, ok := v.Interface().(Unmarshaler); ok {
var temp interface{}
return u, reflect.ValueOf(&temp)
}
}
v = v.Elem()
}
return nil, v
}
func (d *Decoder) sequence(v reflect.Value) {
if d.event.event_type != yaml_SEQUENCE_START_EVENT {
d.error(fmt.Errorf("Expected sequence start at %s", d.event.start_mark))
}
u, pv := d.indirect(v, false)
if u != nil {
defer func() {
if err := u.UnmarshalYAML(yaml_SEQ_TAG, pv.Interface()); err != nil {
d.error(err)
}
}()
_, pv = d.indirect(pv, false)
}
v = pv
// Check type of target.
switch v.Kind() {
case reflect.Interface:
if v.NumMethod() == 0 {
// Decoding into nil interface? Switch to non-reflect code.
v.Set(reflect.ValueOf(d.sequenceInterface()))
return
}
// Otherwise it's invalid.
fallthrough
default:
d.error(fmt.Errorf("Expected an array, slice or interface{} but was a %s at %s", v, d.event.start_mark))
case reflect.Array:
case reflect.Slice:
break
}
d.nextEvent()
i := 0
done:
for {
switch d.event.event_type {
case yaml_SEQUENCE_END_EVENT, yaml_DOCUMENT_END_EVENT:
break done
}
// Get element of array, growing if necessary.
if v.Kind() == reflect.Slice {
// Grow slice if necessary
if i >= v.Cap() {
newcap := v.Cap() + v.Cap()/2
if newcap < 4 {
newcap = 4
}
newv := reflect.MakeSlice(v.Type(), v.Len(), newcap)
reflect.Copy(newv, v)
v.Set(newv)
}
if i >= v.Len() {
v.SetLen(i + 1)
}
}
if i < v.Len() {
// Decode into element.
d.parse(v.Index(i))
} else {
// Ran out of fixed array: skip.
d.parse(reflect.Value{})
}
i++
}
if i < v.Len() {
if v.Kind() == reflect.Array {
// Array. Zero the rest.
z := reflect.Zero(v.Type().Elem())
for ; i < v.Len(); i++ {
v.Index(i).Set(z)
}
} else {
v.SetLen(i)
}
}
if i == 0 && v.Kind() == reflect.Slice {
v.Set(reflect.MakeSlice(v.Type(), 0, 0))
}
if d.event.event_type != yaml_DOCUMENT_END_EVENT {
d.nextEvent()
}
}
func (d *Decoder) mapping(v reflect.Value) {
u, pv := d.indirect(v, false)
if u != nil {
defer func() {
if err := u.UnmarshalYAML(yaml_MAP_TAG, pv.Interface()); err != nil {
d.error(err)
}
}()
_, pv = d.indirect(pv, false)
}
v = pv
// Decoding into nil interface? Switch to non-reflect code.
if v.Kind() == reflect.Interface && v.NumMethod() == 0 {
v.Set(reflect.ValueOf(d.mappingInterface()))
return
}
// Check type of target: struct or map[X]Y
switch v.Kind() {
case reflect.Struct:
d.mappingStruct(v)
return
case reflect.Map:
default:
d.error(fmt.Errorf("Expected a struct or map but was a %s at %s ", v, d.event.start_mark))
}
mapt := v.Type()
if v.IsNil() {
v.Set(reflect.MakeMap(mapt))
}
d.nextEvent()
keyt := mapt.Key()
mapElemt := mapt.Elem()
var mapElem reflect.Value
done:
for {
switch d.event.event_type {
case yaml_MAPPING_END_EVENT:
break done
case yaml_DOCUMENT_END_EVENT:
return
}
key := reflect.New(keyt)
d.parse(key.Elem())
if !mapElem.IsValid() {
mapElem = reflect.New(mapElemt).Elem()
} else {
mapElem.Set(reflect.Zero(mapElemt))
}
d.parse(mapElem)
v.SetMapIndex(key.Elem(), mapElem)
}
d.nextEvent()
}
func (d *Decoder) mappingStruct(v reflect.Value) {
structt := v.Type()
fields := cachedTypeFields(structt)
d.nextEvent()
done:
for {
switch d.event.event_type {
case yaml_MAPPING_END_EVENT:
break done
case yaml_DOCUMENT_END_EVENT:
return
}
key := ""
d.parse(reflect.ValueOf(&key))
// Figure out field corresponding to key.
var subv reflect.Value
var f *field
for i := range fields {
ff := &fields[i]
if ff.name == key {
f = ff
break
}
if f == nil && strings.EqualFold(ff.name, key) {
f = ff
}
}
if f != nil {
subv = v
for _, i := range f.index {
if subv.Kind() == reflect.Ptr {
if subv.IsNil() {
subv.Set(reflect.New(subv.Type().Elem()))
}
subv = subv.Elem()
}
subv = subv.Field(i)
}
}
d.parse(subv)
}
d.nextEvent()
}
func (d *Decoder) scalar(v reflect.Value) {
val := string(d.event.value)
wantptr := null_values[val]
u, pv := d.indirect(v, wantptr)
var tag string
if u != nil {
defer func() {
if err := u.UnmarshalYAML(tag, pv.Interface()); err != nil {
d.error(err)
}
}()
_, pv = d.indirect(pv, wantptr)
}
v = pv
var err error
tag, err = resolve(d.event, v, d.useNumber)
if err != nil {
d.error(err)
}
d.nextEvent()
}
func (d *Decoder) alias(rv reflect.Value) {
val, ok := d.anchors[string(d.event.anchor)]
if !ok {
d.error(fmt.Errorf("missing anchor: '%s' at %s", d.event.anchor, d.event.start_mark))
}
d.replay_events = val
d.nextEvent()
d.parse(rv)
}
func (d *Decoder) valueInterface() interface{} {
var v interface{}
anchor := string(d.event.anchor)
switch d.event.event_type {
case yaml_SEQUENCE_START_EVENT:
d.begin_anchor(anchor)
v = d.sequenceInterface()
case yaml_MAPPING_START_EVENT:
d.begin_anchor(anchor)
v = d.mappingInterface()
case yaml_SCALAR_EVENT:
d.begin_anchor(anchor)
v = d.scalarInterface()
case yaml_ALIAS_EVENT:
rv := reflect.ValueOf(&v)
d.alias(rv)
return v
case yaml_DOCUMENT_END_EVENT:
d.error(&UnexpectedEventError{
Value: string(d.event.value),
EventType: d.event.event_type,
At: d.event.start_mark,
})
}
d.end_anchor(anchor)
return v
}
func (d *Decoder) scalarInterface() interface{} {
_, v := resolveInterface(d.event, d.useNumber)
d.nextEvent()
return v
}
// arrayInterface is like array but returns []interface{}.
func (d *Decoder) sequenceInterface() []interface{} {
var v = make([]interface{}, 0)
d.nextEvent()
done:
for {
switch d.event.event_type {
case yaml_SEQUENCE_END_EVENT, yaml_DOCUMENT_END_EVENT:
break done
}
v = append(v, d.valueInterface())
}
if d.event.event_type != yaml_DOCUMENT_END_EVENT {
d.nextEvent()
}
return v
}
// objectInterface is like object but returns map[string]interface{}.
func (d *Decoder) mappingInterface() map[interface{}]interface{} {
m := make(map[interface{}]interface{})
d.nextEvent()
done:
for {
switch d.event.event_type {
case yaml_MAPPING_END_EVENT, yaml_DOCUMENT_END_EVENT:
break done
}
key := d.valueInterface()
// Read value.
m[key] = d.valueInterface()
}
if d.event.event_type != yaml_DOCUMENT_END_EVENT {
d.nextEvent()
}
return m
}

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vendor/github.com/cloudfoundry-incubator/candiedyaml/emitter.go generated vendored Normal file
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vendor/github.com/cloudfoundry-incubator/candiedyaml/encode.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"bytes"
"encoding/base64"
"io"
"math"
"reflect"
"regexp"
"sort"
"strconv"
"time"
)
var (
timeTimeType = reflect.TypeOf(time.Time{})
marshalerType = reflect.TypeOf(new(Marshaler)).Elem()
numberType = reflect.TypeOf(Number(""))
nonPrintable = regexp.MustCompile("[^\t\n\r\u0020-\u007E\u0085\u00A0-\uD7FF\uE000-\uFFFD]")
multiline = regexp.MustCompile("\n|\u0085|\u2028|\u2029")
shortTags = map[string]string{
yaml_NULL_TAG: "!!null",
yaml_BOOL_TAG: "!!bool",
yaml_STR_TAG: "!!str",
yaml_INT_TAG: "!!int",
yaml_FLOAT_TAG: "!!float",
yaml_TIMESTAMP_TAG: "!!timestamp",
yaml_SEQ_TAG: "!!seq",
yaml_MAP_TAG: "!!map",
yaml_BINARY_TAG: "!!binary",
}
)
type Marshaler interface {
MarshalYAML() (tag string, value interface{}, err error)
}
// An Encoder writes JSON objects to an output stream.
type Encoder struct {
w io.Writer
emitter yaml_emitter_t
event yaml_event_t
flow bool
err error
}
func Marshal(v interface{}) ([]byte, error) {
b := bytes.Buffer{}
e := NewEncoder(&b)
err := e.Encode(v)
return b.Bytes(), err
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
e := &Encoder{w: w}
yaml_emitter_initialize(&e.emitter)
yaml_emitter_set_output_writer(&e.emitter, e.w)
yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
e.emit()
yaml_document_start_event_initialize(&e.event, nil, nil, true)
e.emit()
return e
}
func (e *Encoder) Encode(v interface{}) (err error) {
defer recovery(&err)
if e.err != nil {
return e.err
}
e.marshal("", reflect.ValueOf(v), true)
yaml_document_end_event_initialize(&e.event, true)
e.emit()
e.emitter.open_ended = false
yaml_stream_end_event_initialize(&e.event)
e.emit()
return nil
}
func (e *Encoder) emit() {
if !yaml_emitter_emit(&e.emitter, &e.event) {
panic("bad emit")
}
}
func (e *Encoder) marshal(tag string, v reflect.Value, allowAddr bool) {
vt := v.Type()
if vt.Implements(marshalerType) {
e.emitMarshaler(tag, v)
return
}
if vt.Kind() != reflect.Ptr && allowAddr {
if reflect.PtrTo(vt).Implements(marshalerType) {
e.emitAddrMarshaler(tag, v)
return
}
}
switch v.Kind() {
case reflect.Interface:
if v.IsNil() {
e.emitNil()
} else {
e.marshal(tag, v.Elem(), allowAddr)
}
case reflect.Map:
e.emitMap(tag, v)
case reflect.Ptr:
if v.IsNil() {
e.emitNil()
} else {
e.marshal(tag, v.Elem(), true)
}
case reflect.Struct:
e.emitStruct(tag, v)
case reflect.Slice:
e.emitSlice(tag, v)
case reflect.String:
e.emitString(tag, v)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
e.emitInt(tag, v)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
e.emitUint(tag, v)
case reflect.Float32, reflect.Float64:
e.emitFloat(tag, v)
case reflect.Bool:
e.emitBool(tag, v)
default:
panic("Can't marshal type yet: " + v.Type().String())
}
}
func (e *Encoder) emitMap(tag string, v reflect.Value) {
e.mapping(tag, func() {
var keys stringValues = v.MapKeys()
sort.Sort(keys)
for _, k := range keys {
e.marshal("", k, true)
e.marshal("", v.MapIndex(k), true)
}
})
}
func (e *Encoder) emitStruct(tag string, v reflect.Value) {
if v.Type() == timeTimeType {
e.emitTime(tag, v)
return
}
fields := cachedTypeFields(v.Type())
e.mapping(tag, func() {
for _, f := range fields {
fv := fieldByIndex(v, f.index)
if !fv.IsValid() || f.omitEmpty && isEmptyValue(fv) {
continue
}
e.marshal("", reflect.ValueOf(f.name), true)
e.flow = f.flow
e.marshal("", fv, true)
}
})
}
func (e *Encoder) emitTime(tag string, v reflect.Value) {
t := v.Interface().(time.Time)
bytes, _ := t.MarshalText()
e.emitScalar(string(bytes), "", tag, yaml_PLAIN_SCALAR_STYLE)
}
func isEmptyValue(v reflect.Value) bool {
switch v.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
return v.Len() == 0
case reflect.Bool:
return !v.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.Interface, reflect.Ptr:
return v.IsNil()
}
return false
}
func (e *Encoder) mapping(tag string, f func()) {
implicit := tag == ""
style := yaml_BLOCK_MAPPING_STYLE
if e.flow {
e.flow = false
style = yaml_FLOW_MAPPING_STYLE
}
yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
e.emit()
f()
yaml_mapping_end_event_initialize(&e.event)
e.emit()
}
func (e *Encoder) emitSlice(tag string, v reflect.Value) {
if v.Type() == byteSliceType {
e.emitBase64(tag, v)
return
}
implicit := tag == ""
style := yaml_BLOCK_SEQUENCE_STYLE
if e.flow {
e.flow = false
style = yaml_FLOW_SEQUENCE_STYLE
}
yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
e.emit()
n := v.Len()
for i := 0; i < n; i++ {
e.marshal("", v.Index(i), true)
}
yaml_sequence_end_event_initialize(&e.event)
e.emit()
}
func (e *Encoder) emitBase64(tag string, v reflect.Value) {
if v.IsNil() {
e.emitNil()
return
}
s := v.Bytes()
dst := make([]byte, base64.StdEncoding.EncodedLen(len(s)))
base64.StdEncoding.Encode(dst, s)
e.emitScalar(string(dst), "", yaml_BINARY_TAG, yaml_DOUBLE_QUOTED_SCALAR_STYLE)
}
func (e *Encoder) emitString(tag string, v reflect.Value) {
var style yaml_scalar_style_t
s := v.String()
if nonPrintable.MatchString(s) {
e.emitBase64(tag, v)
return
}
if v.Type() == numberType {
style = yaml_PLAIN_SCALAR_STYLE
} else {
event := yaml_event_t{
implicit: true,
value: []byte(s),
}
rtag, _ := resolveInterface(event, false)
if tag == "" && rtag != yaml_STR_TAG {
style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
} else if multiline.MatchString(s) {
style = yaml_LITERAL_SCALAR_STYLE
} else {
style = yaml_PLAIN_SCALAR_STYLE
}
}
e.emitScalar(s, "", tag, style)
}
func (e *Encoder) emitBool(tag string, v reflect.Value) {
s := strconv.FormatBool(v.Bool())
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
}
func (e *Encoder) emitInt(tag string, v reflect.Value) {
s := strconv.FormatInt(v.Int(), 10)
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
}
func (e *Encoder) emitUint(tag string, v reflect.Value) {
s := strconv.FormatUint(v.Uint(), 10)
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
}
func (e *Encoder) emitFloat(tag string, v reflect.Value) {
f := v.Float()
var s string
switch {
case math.IsNaN(f):
s = ".nan"
case math.IsInf(f, 1):
s = "+.inf"
case math.IsInf(f, -1):
s = "-.inf"
default:
s = strconv.FormatFloat(f, 'g', -1, v.Type().Bits())
}
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
}
func (e *Encoder) emitNil() {
e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
}
func (e *Encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
implicit := tag == ""
if !implicit {
style = yaml_PLAIN_SCALAR_STYLE
}
stag := shortTags[tag]
if stag == "" {
stag = tag
}
yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(stag), []byte(value), implicit, implicit, style)
e.emit()
}
func (e *Encoder) emitMarshaler(tag string, v reflect.Value) {
if v.Kind() == reflect.Ptr && v.IsNil() {
e.emitNil()
return
}
m := v.Interface().(Marshaler)
if m == nil {
e.emitNil()
return
}
t, val, err := m.MarshalYAML()
if err != nil {
panic(err)
}
if val == nil {
e.emitNil()
return
}
e.marshal(t, reflect.ValueOf(val), false)
}
func (e *Encoder) emitAddrMarshaler(tag string, v reflect.Value) {
if !v.CanAddr() {
e.marshal(tag, v, false)
return
}
va := v.Addr()
if va.IsNil() {
e.emitNil()
return
}
m := v.Interface().(Marshaler)
t, val, err := m.MarshalYAML()
if err != nil {
panic(err)
}
if val == nil {
e.emitNil()
return
}
e.marshal(t, reflect.ValueOf(val), false)
}

19
vendor/github.com/cloudfoundry-incubator/candiedyaml/libyaml-LICENSE generated vendored Normal file
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@ -0,0 +1,19 @@
Copyright (c) 2006 Kirill Simonov
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

1230
vendor/github.com/cloudfoundry-incubator/candiedyaml/parser.go generated vendored Normal file
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465
vendor/github.com/cloudfoundry-incubator/candiedyaml/reader.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"io"
)
/*
* Set the reader error and return 0.
*/
func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string,
offset int, value int) bool {
parser.error = yaml_READER_ERROR
parser.problem = problem
parser.problem_offset = offset
parser.problem_value = value
return false
}
/*
* Byte order marks.
*/
const (
BOM_UTF8 = "\xef\xbb\xbf"
BOM_UTF16LE = "\xff\xfe"
BOM_UTF16BE = "\xfe\xff"
)
/*
* Determine the input stream encoding by checking the BOM symbol. If no BOM is
* found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
*/
func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
/* Ensure that we had enough bytes in the raw buffer. */
for !parser.eof &&
len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
if !yaml_parser_update_raw_buffer(parser) {
return false
}
}
/* Determine the encoding. */
raw := parser.raw_buffer
pos := parser.raw_buffer_pos
remaining := len(raw) - pos
if remaining >= 2 &&
raw[pos] == BOM_UTF16LE[0] && raw[pos+1] == BOM_UTF16LE[1] {
parser.encoding = yaml_UTF16LE_ENCODING
parser.raw_buffer_pos += 2
parser.offset += 2
} else if remaining >= 2 &&
raw[pos] == BOM_UTF16BE[0] && raw[pos+1] == BOM_UTF16BE[1] {
parser.encoding = yaml_UTF16BE_ENCODING
parser.raw_buffer_pos += 2
parser.offset += 2
} else if remaining >= 3 &&
raw[pos] == BOM_UTF8[0] && raw[pos+1] == BOM_UTF8[1] && raw[pos+2] == BOM_UTF8[2] {
parser.encoding = yaml_UTF8_ENCODING
parser.raw_buffer_pos += 3
parser.offset += 3
} else {
parser.encoding = yaml_UTF8_ENCODING
}
return true
}
/*
* Update the raw buffer.
*/
func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
size_read := 0
/* Return if the raw buffer is full. */
if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
return true
}
/* Return on EOF. */
if parser.eof {
return true
}
/* Move the remaining bytes in the raw buffer to the beginning. */
if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
}
parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
parser.raw_buffer_pos = 0
/* Call the read handler to fill the buffer. */
size_read, err := parser.read_handler(parser,
parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
if err == io.EOF {
parser.eof = true
} else if err != nil {
return yaml_parser_set_reader_error(parser, "input error: "+err.Error(),
parser.offset, -1)
}
return true
}
/*
* Ensure that the buffer contains at least `length` characters.
* Return 1 on success, 0 on failure.
*
* The length is supposed to be significantly less that the buffer size.
*/
func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
/* Read handler must be set. */
if parser.read_handler == nil {
panic("read handler must be set")
}
/* If the EOF flag is set and the raw buffer is empty, do nothing. */
if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
return true
}
/* Return if the buffer contains enough characters. */
if parser.unread >= length {
return true
}
/* Determine the input encoding if it is not known yet. */
if parser.encoding == yaml_ANY_ENCODING {
if !yaml_parser_determine_encoding(parser) {
return false
}
}
/* Move the unread characters to the beginning of the buffer. */
buffer_end := len(parser.buffer)
if 0 < parser.buffer_pos &&
parser.buffer_pos < buffer_end {
copy(parser.buffer, parser.buffer[parser.buffer_pos:])
buffer_end -= parser.buffer_pos
parser.buffer_pos = 0
} else if parser.buffer_pos == buffer_end {
buffer_end = 0
parser.buffer_pos = 0
}
parser.buffer = parser.buffer[:cap(parser.buffer)]
/* Fill the buffer until it has enough characters. */
first := true
for parser.unread < length {
/* Fill the raw buffer if necessary. */
if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
if !yaml_parser_update_raw_buffer(parser) {
parser.buffer = parser.buffer[:buffer_end]
return false
}
}
first = false
/* Decode the raw buffer. */
for parser.raw_buffer_pos != len(parser.raw_buffer) {
var value rune
var w int
raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
incomplete := false
/* Decode the next character. */
switch parser.encoding {
case yaml_UTF8_ENCODING:
/*
* Decode a UTF-8 character. Check RFC 3629
* (http://www.ietf.org/rfc/rfc3629.txt) for more details.
*
* The following table (taken from the RFC) is used for
* decoding.
*
* Char. number range | UTF-8 octet sequence
* (hexadecimal) | (binary)
* --------------------+------------------------------------
* 0000 0000-0000 007F | 0xxxxxxx
* 0000 0080-0000 07FF | 110xxxxx 10xxxxxx
* 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
* 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
*
* Additionally, the characters in the range 0xD800-0xDFFF
* are prohibited as they are reserved for use with UTF-16
* surrogate pairs.
*/
/* Determine the length of the UTF-8 sequence. */
octet := parser.raw_buffer[parser.raw_buffer_pos]
w = width(octet)
/* Check if the leading octet is valid. */
if w == 0 {
return yaml_parser_set_reader_error(parser,
"invalid leading UTF-8 octet",
parser.offset, int(octet))
}
/* Check if the raw buffer contains an incomplete character. */
if w > raw_unread {
if parser.eof {
return yaml_parser_set_reader_error(parser,
"incomplete UTF-8 octet sequence",
parser.offset, -1)
}
incomplete = true
break
}
/* Decode the leading octet. */
switch {
case octet&0x80 == 0x00:
value = rune(octet & 0x7F)
case octet&0xE0 == 0xC0:
value = rune(octet & 0x1F)
case octet&0xF0 == 0xE0:
value = rune(octet & 0x0F)
case octet&0xF8 == 0xF0:
value = rune(octet & 0x07)
default:
value = 0
}
/* Check and decode the trailing octets. */
for k := 1; k < w; k++ {
octet = parser.raw_buffer[parser.raw_buffer_pos+k]
/* Check if the octet is valid. */
if (octet & 0xC0) != 0x80 {
return yaml_parser_set_reader_error(parser,
"invalid trailing UTF-8 octet",
parser.offset+k, int(octet))
}
/* Decode the octet. */
value = (value << 6) + rune(octet&0x3F)
}
/* Check the length of the sequence against the value. */
switch {
case w == 1:
case w == 2 && value >= 0x80:
case w == 3 && value >= 0x800:
case w == 4 && value >= 0x10000:
default:
return yaml_parser_set_reader_error(parser,
"invalid length of a UTF-8 sequence",
parser.offset, -1)
}
/* Check the range of the value. */
if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
return yaml_parser_set_reader_error(parser,
"invalid Unicode character",
parser.offset, int(value))
}
case yaml_UTF16LE_ENCODING,
yaml_UTF16BE_ENCODING:
var low, high int
if parser.encoding == yaml_UTF16LE_ENCODING {
low, high = 0, 1
} else {
high, low = 1, 0
}
/*
* The UTF-16 encoding is not as simple as one might
* naively think. Check RFC 2781
* (http://www.ietf.org/rfc/rfc2781.txt).
*
* Normally, two subsequent bytes describe a Unicode
* character. However a special technique (called a
* surrogate pair) is used for specifying character
* values larger than 0xFFFF.
*
* A surrogate pair consists of two pseudo-characters:
* high surrogate area (0xD800-0xDBFF)
* low surrogate area (0xDC00-0xDFFF)
*
* The following formulas are used for decoding
* and encoding characters using surrogate pairs:
*
* U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF)
* U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF)
* W1 = 110110yyyyyyyyyy
* W2 = 110111xxxxxxxxxx
*
* where U is the character value, W1 is the high surrogate
* area, W2 is the low surrogate area.
*/
/* Check for incomplete UTF-16 character. */
if raw_unread < 2 {
if parser.eof {
return yaml_parser_set_reader_error(parser,
"incomplete UTF-16 character",
parser.offset, -1)
}
incomplete = true
break
}
/* Get the character. */
value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
/* Check for unexpected low surrogate area. */
if (value & 0xFC00) == 0xDC00 {
return yaml_parser_set_reader_error(parser,
"unexpected low surrogate area",
parser.offset, int(value))
}
/* Check for a high surrogate area. */
if (value & 0xFC00) == 0xD800 {
w = 4
/* Check for incomplete surrogate pair. */
if raw_unread < 4 {
if parser.eof {
return yaml_parser_set_reader_error(parser,
"incomplete UTF-16 surrogate pair",
parser.offset, -1)
}
incomplete = true
break
}
/* Get the next character. */
value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
/* Check for a low surrogate area. */
if (value2 & 0xFC00) != 0xDC00 {
return yaml_parser_set_reader_error(parser,
"expected low surrogate area",
parser.offset+2, int(value2))
}
/* Generate the value of the surrogate pair. */
value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
} else {
w = 2
}
break
default:
panic("Impossible") /* Impossible. */
}
/* Check if the raw buffer contains enough bytes to form a character. */
if incomplete {
break
}
/*
* Check if the character is in the allowed range:
* #x9 | #xA | #xD | [#x20-#x7E] (8 bit)
* | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit)
* | [#x10000-#x10FFFF] (32 bit)
*/
if !(value == 0x09 || value == 0x0A || value == 0x0D ||
(value >= 0x20 && value <= 0x7E) ||
(value == 0x85) || (value >= 0xA0 && value <= 0xD7FF) ||
(value >= 0xE000 && value <= 0xFFFD) ||
(value >= 0x10000 && value <= 0x10FFFF)) {
return yaml_parser_set_reader_error(parser,
"control characters are not allowed",
parser.offset, int(value))
}
/* Move the raw pointers. */
parser.raw_buffer_pos += w
parser.offset += w
/* Finally put the character into the buffer. */
/* 0000 0000-0000 007F . 0xxxxxxx */
if value <= 0x7F {
parser.buffer[buffer_end] = byte(value)
} else if value <= 0x7FF {
/* 0000 0080-0000 07FF . 110xxxxx 10xxxxxx */
parser.buffer[buffer_end] = byte(0xC0 + (value >> 6))
parser.buffer[buffer_end+1] = byte(0x80 + (value & 0x3F))
} else if value <= 0xFFFF {
/* 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx */
parser.buffer[buffer_end] = byte(0xE0 + (value >> 12))
parser.buffer[buffer_end+1] = byte(0x80 + ((value >> 6) & 0x3F))
parser.buffer[buffer_end+2] = byte(0x80 + (value & 0x3F))
} else {
/* 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
parser.buffer[buffer_end] = byte(0xF0 + (value >> 18))
parser.buffer[buffer_end+1] = byte(0x80 + ((value >> 12) & 0x3F))
parser.buffer[buffer_end+2] = byte(0x80 + ((value >> 6) & 0x3F))
parser.buffer[buffer_end+3] = byte(0x80 + (value & 0x3F))
}
buffer_end += w
parser.unread++
}
/* On EOF, put NUL into the buffer and return. */
if parser.eof {
parser.buffer[buffer_end] = 0
buffer_end++
parser.buffer = parser.buffer[:buffer_end]
parser.unread++
return true
}
}
parser.buffer = parser.buffer[:buffer_end]
return true
}

449
vendor/github.com/cloudfoundry-incubator/candiedyaml/resolver.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"bytes"
"encoding/base64"
"fmt"
"math"
"reflect"
"regexp"
"strconv"
"strings"
"time"
)
var byteSliceType = reflect.TypeOf([]byte(nil))
var binary_tags = [][]byte{[]byte("!binary"), []byte(yaml_BINARY_TAG)}
var bool_values map[string]bool
var null_values map[string]bool
var signs = []byte{'-', '+'}
var nulls = []byte{'~', 'n', 'N'}
var bools = []byte{'t', 'T', 'f', 'F', 'y', 'Y', 'n', 'N', 'o', 'O'}
var timestamp_regexp *regexp.Regexp
var ymd_regexp *regexp.Regexp
func init() {
bool_values = make(map[string]bool)
bool_values["y"] = true
bool_values["yes"] = true
bool_values["n"] = false
bool_values["no"] = false
bool_values["true"] = true
bool_values["false"] = false
bool_values["on"] = true
bool_values["off"] = false
null_values = make(map[string]bool)
null_values["~"] = true
null_values["null"] = true
null_values["Null"] = true
null_values["NULL"] = true
timestamp_regexp = regexp.MustCompile("^([0-9][0-9][0-9][0-9])-([0-9][0-9]?)-([0-9][0-9]?)(?:(?:[Tt]|[ \t]+)([0-9][0-9]?):([0-9][0-9]):([0-9][0-9])(?:\\.([0-9]*))?(?:[ \t]*(?:Z|([-+][0-9][0-9]?)(?::([0-9][0-9])?)?))?)?$")
ymd_regexp = regexp.MustCompile("^([0-9][0-9][0-9][0-9])-([0-9][0-9]?)-([0-9][0-9]?)$")
}
func resolve(event yaml_event_t, v reflect.Value, useNumber bool) (string, error) {
val := string(event.value)
if null_values[val] {
v.Set(reflect.Zero(v.Type()))
return yaml_NULL_TAG, nil
}
switch v.Kind() {
case reflect.String:
if useNumber && v.Type() == numberType {
tag, i := resolveInterface(event, useNumber)
if n, ok := i.(Number); ok {
v.Set(reflect.ValueOf(n))
return tag, nil
}
return "", fmt.Errorf("Not a number: '%s' at %s", event.value, event.start_mark)
}
return resolve_string(val, v, event)
case reflect.Bool:
return resolve_bool(val, v, event)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return resolve_int(val, v, useNumber, event)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return resolve_uint(val, v, useNumber, event)
case reflect.Float32, reflect.Float64:
return resolve_float(val, v, useNumber, event)
case reflect.Interface:
_, i := resolveInterface(event, useNumber)
if i != nil {
v.Set(reflect.ValueOf(i))
} else {
v.Set(reflect.Zero(v.Type()))
}
case reflect.Struct:
return resolve_time(val, v, event)
case reflect.Slice:
if v.Type() != byteSliceType {
return "", fmt.Errorf("Cannot resolve %s into %s at %s", val, v.String(), event.start_mark)
}
b, err := decode_binary(event.value, event)
if err != nil {
return "", err
}
v.Set(reflect.ValueOf(b))
default:
return "", fmt.Errorf("Unknown resolution for '%s' using %s at %s", val, v.String(), event.start_mark)
}
return yaml_STR_TAG, nil
}
func hasBinaryTag(event yaml_event_t) bool {
for _, tag := range binary_tags {
if bytes.Equal(event.tag, tag) {
return true
}
}
return false
}
func decode_binary(value []byte, event yaml_event_t) ([]byte, error) {
b := make([]byte, base64.StdEncoding.DecodedLen(len(value)))
n, err := base64.StdEncoding.Decode(b, value)
if err != nil {
return nil, fmt.Errorf("Invalid base64 text: '%s' at %s", string(b), event.start_mark)
}
return b[:n], nil
}
func resolve_string(val string, v reflect.Value, event yaml_event_t) (string, error) {
if len(event.tag) > 0 {
if hasBinaryTag(event) {
b, err := decode_binary(event.value, event)
if err != nil {
return "", err
}
val = string(b)
}
}
v.SetString(val)
return yaml_STR_TAG, nil
}
func resolve_bool(val string, v reflect.Value, event yaml_event_t) (string, error) {
b, found := bool_values[strings.ToLower(val)]
if !found {
return "", fmt.Errorf("Invalid boolean: '%s' at %s", val, event.start_mark)
}
v.SetBool(b)
return yaml_BOOL_TAG, nil
}
func resolve_int(val string, v reflect.Value, useNumber bool, event yaml_event_t) (string, error) {
original := val
val = strings.Replace(val, "_", "", -1)
var value uint64
isNumberValue := v.Type() == numberType
sign := int64(1)
if val[0] == '-' {
sign = -1
val = val[1:]
} else if val[0] == '+' {
val = val[1:]
}
base := 0
if val == "0" {
if isNumberValue {
v.SetString("0")
} else {
v.Set(reflect.Zero(v.Type()))
}
return yaml_INT_TAG, nil
}
if strings.HasPrefix(val, "0o") {
base = 8
val = val[2:]
}
value, err := strconv.ParseUint(val, base, 64)
if err != nil {
return "", fmt.Errorf("Invalid integer: '%s' at %s", original, event.start_mark)
}
var val64 int64
if value <= math.MaxInt64 {
val64 = int64(value)
if sign == -1 {
val64 = -val64
}
} else if sign == -1 && value == uint64(math.MaxInt64)+1 {
val64 = math.MinInt64
} else {
return "", fmt.Errorf("Invalid integer: '%s' at %s", original, event.start_mark)
}
if isNumberValue {
v.SetString(strconv.FormatInt(val64, 10))
} else {
if v.OverflowInt(val64) {
return "", fmt.Errorf("Invalid integer: '%s' at %s", original, event.start_mark)
}
v.SetInt(val64)
}
return yaml_INT_TAG, nil
}
func resolve_uint(val string, v reflect.Value, useNumber bool, event yaml_event_t) (string, error) {
original := val
val = strings.Replace(val, "_", "", -1)
var value uint64
isNumberValue := v.Type() == numberType
if val[0] == '-' {
return "", fmt.Errorf("Unsigned int with negative value: '%s' at %s", original, event.start_mark)
}
if val[0] == '+' {
val = val[1:]
}
base := 0
if val == "0" {
if isNumberValue {
v.SetString("0")
} else {
v.Set(reflect.Zero(v.Type()))
}
return yaml_INT_TAG, nil
}
if strings.HasPrefix(val, "0o") {
base = 8
val = val[2:]
}
value, err := strconv.ParseUint(val, base, 64)
if err != nil {
return "", fmt.Errorf("Invalid unsigned integer: '%s' at %s", val, event.start_mark)
}
if isNumberValue {
v.SetString(strconv.FormatUint(value, 10))
} else {
if v.OverflowUint(value) {
return "", fmt.Errorf("Invalid unsigned integer: '%s' at %s", val, event.start_mark)
}
v.SetUint(value)
}
return yaml_INT_TAG, nil
}
func resolve_float(val string, v reflect.Value, useNumber bool, event yaml_event_t) (string, error) {
val = strings.Replace(val, "_", "", -1)
var value float64
isNumberValue := v.Type() == numberType
typeBits := 64
if !isNumberValue {
typeBits = v.Type().Bits()
}
sign := 1
if val[0] == '-' {
sign = -1
val = val[1:]
} else if val[0] == '+' {
val = val[1:]
}
valLower := strings.ToLower(val)
if valLower == ".inf" {
value = math.Inf(sign)
} else if valLower == ".nan" {
value = math.NaN()
} else {
var err error
value, err = strconv.ParseFloat(val, typeBits)
value *= float64(sign)
if err != nil {
return "", fmt.Errorf("Invalid float: '%s' at %s", val, event.start_mark)
}
}
if isNumberValue {
v.SetString(strconv.FormatFloat(value, 'g', -1, typeBits))
} else {
if v.OverflowFloat(value) {
return "", fmt.Errorf("Invalid float: '%s' at %s", val, event.start_mark)
}
v.SetFloat(value)
}
return yaml_FLOAT_TAG, nil
}
func resolve_time(val string, v reflect.Value, event yaml_event_t) (string, error) {
var parsedTime time.Time
matches := ymd_regexp.FindStringSubmatch(val)
if len(matches) > 0 {
year, _ := strconv.Atoi(matches[1])
month, _ := strconv.Atoi(matches[2])
day, _ := strconv.Atoi(matches[3])
parsedTime = time.Date(year, time.Month(month), day, 0, 0, 0, 0, time.UTC)
} else {
matches = timestamp_regexp.FindStringSubmatch(val)
if len(matches) == 0 {
return "", fmt.Errorf("Invalid timestap: '%s' at %s", val, event.start_mark)
}
year, _ := strconv.Atoi(matches[1])
month, _ := strconv.Atoi(matches[2])
day, _ := strconv.Atoi(matches[3])
hour, _ := strconv.Atoi(matches[4])
min, _ := strconv.Atoi(matches[5])
sec, _ := strconv.Atoi(matches[6])
nsec := 0
if matches[7] != "" {
millis, _ := strconv.Atoi(matches[7])
nsec = int(time.Duration(millis) * time.Millisecond)
}
loc := time.UTC
if matches[8] != "" {
sign := matches[8][0]
hr, _ := strconv.Atoi(matches[8][1:])
min := 0
if matches[9] != "" {
min, _ = strconv.Atoi(matches[9])
}
zoneOffset := (hr*60 + min) * 60
if sign == '-' {
zoneOffset = -zoneOffset
}
loc = time.FixedZone("", zoneOffset)
}
parsedTime = time.Date(year, time.Month(month), day, hour, min, sec, nsec, loc)
}
v.Set(reflect.ValueOf(parsedTime))
return "", nil
}
func resolveInterface(event yaml_event_t, useNumber bool) (string, interface{}) {
val := string(event.value)
if len(event.tag) == 0 && !event.implicit {
return "", val
}
if len(val) == 0 {
return yaml_NULL_TAG, nil
}
var result interface{}
sign := false
c := val[0]
switch {
case bytes.IndexByte(signs, c) != -1:
sign = true
fallthrough
case c >= '0' && c <= '9':
i := int64(0)
result = &i
if useNumber {
var n Number
result = &n
}
v := reflect.ValueOf(result).Elem()
if _, err := resolve_int(val, v, useNumber, event); err == nil {
return yaml_INT_TAG, v.Interface()
}
f := float64(0)
result = &f
if useNumber {
var n Number
result = &n
}
v = reflect.ValueOf(result).Elem()
if _, err := resolve_float(val, v, useNumber, event); err == nil {
return yaml_FLOAT_TAG, v.Interface()
}
if !sign {
t := time.Time{}
if _, err := resolve_time(val, reflect.ValueOf(&t).Elem(), event); err == nil {
return "", t
}
}
case bytes.IndexByte(nulls, c) != -1:
if null_values[val] {
return yaml_NULL_TAG, nil
}
b := false
if _, err := resolve_bool(val, reflect.ValueOf(&b).Elem(), event); err == nil {
return yaml_BOOL_TAG, b
}
case c == '.':
f := float64(0)
result = &f
if useNumber {
var n Number
result = &n
}
v := reflect.ValueOf(result).Elem()
if _, err := resolve_float(val, v, useNumber, event); err == nil {
return yaml_FLOAT_TAG, v.Interface()
}
case bytes.IndexByte(bools, c) != -1:
b := false
if _, err := resolve_bool(val, reflect.ValueOf(&b).Elem(), event); err == nil {
return yaml_BOOL_TAG, b
}
}
if hasBinaryTag(event) {
bytes, err := decode_binary(event.value, event)
if err == nil {
return yaml_BINARY_TAG, bytes
}
}
return yaml_STR_TAG, val
}

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vendor/github.com/cloudfoundry-incubator/candiedyaml/run_parser.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"fmt"
"os"
)
func Run_parser(cmd string, args []string) {
for i := 0; i < len(args); i++ {
fmt.Printf("[%d] Scanning '%s'", i, args[i])
file, err := os.Open(args[i])
if err != nil {
panic(fmt.Sprintf("Invalid file '%s': %s", args[i], err.Error()))
}
parser := yaml_parser_t{}
yaml_parser_initialize(&parser)
yaml_parser_set_input_reader(&parser, file)
failed := false
token := yaml_token_t{}
count := 0
for {
if !yaml_parser_scan(&parser, &token) {
failed = true
break
}
if token.token_type == yaml_STREAM_END_TOKEN {
break
}
count++
}
file.Close()
msg := "SUCCESS"
if failed {
msg = "FAILED"
if parser.error != yaml_NO_ERROR {
m := parser.problem_mark
fmt.Printf("ERROR: (%s) %s @ line: %d col: %d\n",
parser.context, parser.problem, m.line, m.column)
}
}
fmt.Printf("%s (%d tokens)\n", msg, count)
}
}

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vendor/github.com/cloudfoundry-incubator/candiedyaml/scanner.go generated vendored Normal file
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343
vendor/github.com/cloudfoundry-incubator/candiedyaml/tags.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"reflect"
"sort"
"strings"
"sync"
"unicode"
)
// A field represents a single field found in a struct.
type field struct {
name string
tag bool
index []int
typ reflect.Type
omitEmpty bool
flow bool
}
// byName sorts field by name, breaking ties with depth,
// then breaking ties with "name came from json tag", then
// breaking ties with index sequence.
type byName []field
func (x byName) Len() int { return len(x) }
func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byName) Less(i, j int) bool {
if x[i].name != x[j].name {
return x[i].name < x[j].name
}
if len(x[i].index) != len(x[j].index) {
return len(x[i].index) < len(x[j].index)
}
if x[i].tag != x[j].tag {
return x[i].tag
}
return byIndex(x).Less(i, j)
}
// byIndex sorts field by index sequence.
type byIndex []field
func (x byIndex) Len() int { return len(x) }
func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byIndex) Less(i, j int) bool {
for k, xik := range x[i].index {
if k >= len(x[j].index) {
return false
}
if xik != x[j].index[k] {
return xik < x[j].index[k]
}
}
return len(x[i].index) < len(x[j].index)
}
// typeFields returns a list of fields that JSON should recognize for the given type.
// The algorithm is breadth-first search over the set of structs to include - the top struct
// and then any reachable anonymous structs.
func typeFields(t reflect.Type) []field {
// Anonymous fields to explore at the current level and the next.
current := []field{}
next := []field{{typ: t}}
// Count of queued names for current level and the next.
count := map[reflect.Type]int{}
nextCount := map[reflect.Type]int{}
// Types already visited at an earlier level.
visited := map[reflect.Type]bool{}
// Fields found.
var fields []field
for len(next) > 0 {
current, next = next, current[:0]
count, nextCount = nextCount, map[reflect.Type]int{}
for _, f := range current {
if visited[f.typ] {
continue
}
visited[f.typ] = true
// Scan f.typ for fields to include.
for i := 0; i < f.typ.NumField(); i++ {
sf := f.typ.Field(i)
if sf.PkgPath != "" { // unexported
continue
}
tag := sf.Tag.Get("yaml")
if tag == "-" {
continue
}
name, opts := parseTag(tag)
if !isValidTag(name) {
name = ""
}
index := make([]int, len(f.index)+1)
copy(index, f.index)
index[len(f.index)] = i
ft := sf.Type
if ft.Name() == "" && ft.Kind() == reflect.Ptr {
// Follow pointer.
ft = ft.Elem()
}
// Record found field and index sequence.
if name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
tagged := name != ""
if name == "" {
name = sf.Name
}
fields = append(fields, field{name, tagged, index, ft,
opts.Contains("omitempty"), opts.Contains("flow")})
if count[f.typ] > 1 {
// If there were multiple instances, add a second,
// so that the annihilation code will see a duplicate.
// It only cares about the distinction between 1 or 2,
// so don't bother generating any more copies.
fields = append(fields, fields[len(fields)-1])
}
continue
}
// Record new anonymous struct to explore in next round.
nextCount[ft]++
if nextCount[ft] == 1 {
next = append(next, field{name: ft.Name(), index: index, typ: ft})
}
}
}
}
sort.Sort(byName(fields))
// Delete all fields that are hidden by the Go rules for embedded fields,
// except that fields with JSON tags are promoted.
// The fields are sorted in primary order of name, secondary order
// of field index length. Loop over names; for each name, delete
// hidden fields by choosing the one dominant field that survives.
out := fields[:0]
for advance, i := 0, 0; i < len(fields); i += advance {
// One iteration per name.
// Find the sequence of fields with the name of this first field.
fi := fields[i]
name := fi.name
for advance = 1; i+advance < len(fields); advance++ {
fj := fields[i+advance]
if fj.name != name {
break
}
}
if advance == 1 { // Only one field with this name
out = append(out, fi)
continue
}
dominant, ok := dominantField(fields[i : i+advance])
if ok {
out = append(out, dominant)
}
}
fields = out
sort.Sort(byIndex(fields))
return fields
}
// dominantField looks through the fields, all of which are known to
// have the same name, to find the single field that dominates the
// others using Go's embedding rules, modified by the presence of
// JSON tags. If there are multiple top-level fields, the boolean
// will be false: This condition is an error in Go and we skip all
// the fields.
func dominantField(fields []field) (field, bool) {
// The fields are sorted in increasing index-length order. The winner
// must therefore be one with the shortest index length. Drop all
// longer entries, which is easy: just truncate the slice.
length := len(fields[0].index)
tagged := -1 // Index of first tagged field.
for i, f := range fields {
if len(f.index) > length {
fields = fields[:i]
break
}
if f.tag {
if tagged >= 0 {
// Multiple tagged fields at the same level: conflict.
// Return no field.
return field{}, false
}
tagged = i
}
}
if tagged >= 0 {
return fields[tagged], true
}
// All remaining fields have the same length. If there's more than one,
// we have a conflict (two fields named "X" at the same level) and we
// return no field.
if len(fields) > 1 {
return field{}, false
}
return fields[0], true
}
var fieldCache struct {
sync.RWMutex
m map[reflect.Type][]field
}
// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
func cachedTypeFields(t reflect.Type) []field {
fieldCache.RLock()
f := fieldCache.m[t]
fieldCache.RUnlock()
if f != nil {
return f
}
// Compute fields without lock.
// Might duplicate effort but won't hold other computations back.
f = typeFields(t)
if f == nil {
f = []field{}
}
fieldCache.Lock()
if fieldCache.m == nil {
fieldCache.m = map[reflect.Type][]field{}
}
fieldCache.m[t] = f
fieldCache.Unlock()
return f
}
// tagOptions is the string following a comma in a struct field's "json"
// tag, or the empty string. It does not include the leading comma.
type tagOptions string
func isValidTag(s string) bool {
if s == "" {
return false
}
for _, c := range s {
switch {
case strings.ContainsRune("!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
// Backslash and quote chars are reserved, but
// otherwise any punctuation chars are allowed
// in a tag name.
default:
if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
return false
}
}
}
return true
}
func fieldByIndex(v reflect.Value, index []int) reflect.Value {
for _, i := range index {
if v.Kind() == reflect.Ptr {
if v.IsNil() {
return reflect.Value{}
}
v = v.Elem()
}
v = v.Field(i)
}
return v
}
func typeByIndex(t reflect.Type, index []int) reflect.Type {
for _, i := range index {
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
t = t.Field(i).Type
}
return t
}
// stringValues is a slice of reflect.Value holding *reflect.StringValue.
// It implements the methods to sort by string.
type stringValues []reflect.Value
func (sv stringValues) Len() int { return len(sv) }
func (sv stringValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] }
func (sv stringValues) Less(i, j int) bool { return sv.get(i) < sv.get(j) }
func (sv stringValues) get(i int) string { return sv[i].String() }
// parseTag splits a struct field's json tag into its name and
// comma-separated options.
func parseTag(tag string) (string, tagOptions) {
if idx := strings.Index(tag, ","); idx != -1 {
return tag[:idx], tagOptions(tag[idx+1:])
}
return tag, tagOptions("")
}
// Contains reports whether a comma-separated list of options
// contains a particular substr flag. substr must be surrounded by a
// string boundary or commas.
func (o tagOptions) Contains(optionName string) bool {
if len(o) == 0 {
return false
}
s := string(o)
for s != "" {
var next string
i := strings.Index(s, ",")
if i >= 0 {
s, next = s[:i], s[i+1:]
}
if s == optionName {
return true
}
s = next
}
return false
}

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vendor/github.com/cloudfoundry-incubator/candiedyaml/writer.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
/*
* Set the writer error and return 0.
*/
func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
emitter.error = yaml_WRITER_ERROR
emitter.problem = problem
return false
}
/*
* Flush the output buffer.
*/
func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
if emitter.write_handler == nil {
panic("Write handler must be set") /* Write handler must be set. */
}
if emitter.encoding == yaml_ANY_ENCODING {
panic("Encoding must be set") /* Output encoding must be set. */
}
/* Check if the buffer is empty. */
if emitter.buffer_pos == 0 {
return true
}
/* If the output encoding is UTF-8, we don't need to recode the buffer. */
if emitter.encoding == yaml_UTF8_ENCODING {
if err := emitter.write_handler(emitter,
emitter.buffer[:emitter.buffer_pos]); err != nil {
return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
}
emitter.buffer_pos = 0
return true
}
/* Recode the buffer into the raw buffer. */
var low, high int
if emitter.encoding == yaml_UTF16LE_ENCODING {
low, high = 0, 1
} else {
high, low = 1, 0
}
pos := 0
for pos < emitter.buffer_pos {
/*
* See the "reader.c" code for more details on UTF-8 encoding. Note
* that we assume that the buffer contains a valid UTF-8 sequence.
*/
/* Read the next UTF-8 character. */
octet := emitter.buffer[pos]
var w int
var value rune
switch {
case octet&0x80 == 0x00:
w, value = 1, rune(octet&0x7F)
case octet&0xE0 == 0xC0:
w, value = 2, rune(octet&0x1F)
case octet&0xF0 == 0xE0:
w, value = 3, rune(octet&0x0F)
case octet&0xF8 == 0xF0:
w, value = 4, rune(octet&0x07)
}
for k := 1; k < w; k++ {
octet = emitter.buffer[pos+k]
value = (value << 6) + (rune(octet) & 0x3F)
}
pos += w
/* Write the character. */
if value < 0x10000 {
var b [2]byte
b[high] = byte(value >> 8)
b[low] = byte(value & 0xFF)
emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
} else {
/* Write the character using a surrogate pair (check "reader.c"). */
var b [4]byte
value -= 0x10000
b[high] = byte(0xD8 + (value >> 18))
b[low] = byte((value >> 10) & 0xFF)
b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
b[low+2] = byte(value & 0xFF)
emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
}
}
/* Write the raw buffer. */
// Write the raw buffer.
if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
}
emitter.buffer_pos = 0
emitter.raw_buffer = emitter.raw_buffer[:0]
return true
}

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vendor/github.com/cloudfoundry-incubator/candiedyaml/yaml_definesh.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
const (
yaml_VERSION_MAJOR = 0
yaml_VERSION_MINOR = 1
yaml_VERSION_PATCH = 6
yaml_VERSION_STRING = "0.1.6"
)

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vendor/github.com/cloudfoundry-incubator/candiedyaml/yaml_privateh.go generated vendored Normal file
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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
const (
INPUT_RAW_BUFFER_SIZE = 1024
/*
* The size of the input buffer.
*
* It should be possible to decode the whole raw buffer.
*/
INPUT_BUFFER_SIZE = (INPUT_RAW_BUFFER_SIZE * 3)
/*
* The size of the output buffer.
*/
OUTPUT_BUFFER_SIZE = 512
/*
* The size of the output raw buffer.
*
* It should be possible to encode the whole output buffer.
*/
OUTPUT_RAW_BUFFER_SIZE = (OUTPUT_BUFFER_SIZE*2 + 2)
INITIAL_STACK_SIZE = 16
INITIAL_QUEUE_SIZE = 16
)
func width(b byte) int {
if b&0x80 == 0 {
return 1
}
if b&0xE0 == 0xC0 {
return 2
}
if b&0xF0 == 0xE0 {
return 3
}
if b&0xF8 == 0xF0 {
return 4
}
return 0
}
func copy_bytes(dest []byte, dest_pos *int, src []byte, src_pos *int) {
w := width(src[*src_pos])
switch w {
case 4:
dest[*dest_pos+3] = src[*src_pos+3]
fallthrough
case 3:
dest[*dest_pos+2] = src[*src_pos+2]
fallthrough
case 2:
dest[*dest_pos+1] = src[*src_pos+1]
fallthrough
case 1:
dest[*dest_pos] = src[*src_pos]
default:
panic("invalid width")
}
*dest_pos += w
*src_pos += w
}
// /*
// * Check if the character at the specified position is an alphabetical
// * character, a digit, '_', or '-'.
// */
func is_alpha(b byte) bool {
return (b >= '0' && b <= '9') ||
(b >= 'A' && b <= 'Z') ||
(b >= 'a' && b <= 'z') ||
b == '_' || b == '-'
}
// /*
// * Check if the character at the specified position is a digit.
// */
//
func is_digit(b byte) bool {
return b >= '0' && b <= '9'
}
// /*
// * Get the value of a digit.
// */
//
func as_digit(b byte) int {
return int(b) - '0'
}
// /*
// * Check if the character at the specified position is a hex-digit.
// */
//
func is_hex(b byte) bool {
return (b >= '0' && b <= '9') ||
(b >= 'A' && b <= 'F') ||
(b >= 'a' && b <= 'f')
}
//
// /*
// * Get the value of a hex-digit.
// */
//
func as_hex(b byte) int {
if b >= 'A' && b <= 'F' {
return int(b) - 'A' + 10
} else if b >= 'a' && b <= 'f' {
return int(b) - 'a' + 10
}
return int(b) - '0'
}
// #define AS_HEX_AT(string,offset) \
// (((string).pointer[offset] >= (yaml_char_t) 'A' && \
// (string).pointer[offset] <= (yaml_char_t) 'F') ? \
// ((string).pointer[offset] - (yaml_char_t) 'A' + 10) : \
// ((string).pointer[offset] >= (yaml_char_t) 'a' && \
// (string).pointer[offset] <= (yaml_char_t) 'f') ? \
// ((string).pointer[offset] - (yaml_char_t) 'a' + 10) : \
// ((string).pointer[offset] - (yaml_char_t) '0'))
// /*
// * Check if the character is a line break, space, tab, or NUL.
// */
func is_blankz_at(b []byte, i int) bool {
return is_blank(b[i]) || is_breakz_at(b, i)
}
// /*
// * Check if the character at the specified position is a line break.
// */
func is_break_at(b []byte, i int) bool {
return b[i] == '\r' || /* CR (#xD)*/
b[i] == '\n' || /* LF (#xA) */
(b[i] == 0xC2 && b[i+1] == 0x85) || /* NEL (#x85) */
(b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8) || /* LS (#x2028) */
(b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) /* PS (#x2029) */
}
func is_breakz_at(b []byte, i int) bool {
return is_break_at(b, i) || is_z(b[i])
}
func is_crlf_at(b []byte, i int) bool {
return b[i] == '\r' && b[i+1] == '\n'
}
// /*
// * Check if the character at the specified position is NUL.
// */
func is_z(b byte) bool {
return b == 0x0
}
// /*
// * Check if the character at the specified position is space.
// */
func is_space(b byte) bool {
return b == ' '
}
//
// /*
// * Check if the character at the specified position is tab.
// */
func is_tab(b byte) bool {
return b == '\t'
}
// /*
// * Check if the character at the specified position is blank (space or tab).
// */
func is_blank(b byte) bool {
return is_space(b) || is_tab(b)
}
// /*
// * Check if the character is ASCII.
// */
func is_ascii(b byte) bool {
return b <= '\x7f'
}
// /*
// * Check if the character can be printed unescaped.
// */
func is_printable_at(b []byte, i int) bool {
return ((b[i] == 0x0A) || /* . == #x0A */
(b[i] >= 0x20 && b[i] <= 0x7E) || /* #x20 <= . <= #x7E */
(b[i] == 0xC2 && b[i+1] >= 0xA0) || /* #0xA0 <= . <= #xD7FF */
(b[i] > 0xC2 && b[i] < 0xED) ||
(b[i] == 0xED && b[i+1] < 0xA0) ||
(b[i] == 0xEE) ||
(b[i] == 0xEF && /* && . != #xFEFF */
!(b[i+1] == 0xBB && b[i+2] == 0xBF) &&
!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
}
func insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
// collapse the slice
if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
if parser.tokens_head != len(parser.tokens) {
// move the tokens down
copy(parser.tokens, parser.tokens[parser.tokens_head:])
}
// readjust the length
parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
parser.tokens_head = 0
}
parser.tokens = append(parser.tokens, *token)
if pos < 0 {
return
}
copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
parser.tokens[parser.tokens_head+pos] = *token
}
// /*
// * Check if the character at the specified position is BOM.
// */
//
func is_bom_at(b []byte, i int) bool {
return b[i] == 0xEF && b[i+1] == 0xBB && b[i+2] == 0xBF
}
//
// #ifdef HAVE_CONFIG_H
// #include <config.h>
// #endif
//
// #include "./yaml.h"
//
// #include <assert.h>
// #include <limits.h>
//
// /*
// * Memory management.
// */
//
// yaml_DECLARE(void *)
// yaml_malloc(size_t size);
//
// yaml_DECLARE(void *)
// yaml_realloc(void *ptr, size_t size);
//
// yaml_DECLARE(void)
// yaml_free(void *ptr);
//
// yaml_DECLARE(yaml_char_t *)
// yaml_strdup(const yaml_char_t *);
//
// /*
// * Reader: Ensure that the buffer contains at least `length` characters.
// */
//
// yaml_DECLARE(int)
// yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);
//
// /*
// * Scanner: Ensure that the token stack contains at least one token ready.
// */
//
// yaml_DECLARE(int)
// yaml_parser_fetch_more_tokens(yaml_parser_t *parser);
//
// /*
// * The size of the input raw buffer.
// */
//
// #define INPUT_RAW_BUFFER_SIZE 16384
//
// /*
// * The size of the input buffer.
// *
// * It should be possible to decode the whole raw buffer.
// */
//
// #define INPUT_BUFFER_SIZE (INPUT_RAW_BUFFER_SIZE*3)
//
// /*
// * The size of the output buffer.
// */
//
// #define OUTPUT_BUFFER_SIZE 16384
//
// /*
// * The size of the output raw buffer.
// *
// * It should be possible to encode the whole output buffer.
// */
//
// #define OUTPUT_RAW_BUFFER_SIZE (OUTPUT_BUFFER_SIZE*2+2)
//
// /*
// * The size of other stacks and queues.
// */
//
// #define INITIAL_STACK_SIZE 16
// #define INITIAL_QUEUE_SIZE 16
// #define INITIAL_STRING_SIZE 16
//
// /*
// * Buffer management.
// */
//
// #define BUFFER_INIT(context,buffer,size) \
// (((buffer).start = yaml_malloc(size)) ? \
// ((buffer).last = (buffer).pointer = (buffer).start, \
// (buffer).end = (buffer).start+(size), \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define BUFFER_DEL(context,buffer) \
// (yaml_free((buffer).start), \
// (buffer).start = (buffer).pointer = (buffer).end = 0)
//
// /*
// * String management.
// */
//
// typedef struct {
// yaml_char_t *start;
// yaml_char_t *end;
// yaml_char_t *pointer;
// } yaml_string_t;
//
// yaml_DECLARE(int)
// yaml_string_extend(yaml_char_t **start,
// yaml_char_t **pointer, yaml_char_t **end);
//
// yaml_DECLARE(int)
// yaml_string_join(
// yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,
// yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end);
//
// #define NULL_STRING { NULL, NULL, NULL }
//
// #define STRING(string,length) { (string), (string)+(length), (string) }
//
// #define STRING_ASSIGN(value,string,length) \
// ((value).start = (string), \
// (value).end = (string)+(length), \
// (value).pointer = (string))
//
// #define STRING_INIT(context,string,size) \
// (((string).start = yaml_malloc(size)) ? \
// ((string).pointer = (string).start, \
// (string).end = (string).start+(size), \
// memset((string).start, 0, (size)), \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define STRING_DEL(context,string) \
// (yaml_free((string).start), \
// (string).start = (string).pointer = (string).end = 0)
//
// #define STRING_EXTEND(context,string) \
// (((string).pointer+5 < (string).end) \
// || yaml_string_extend(&(string).start, \
// &(string).pointer, &(string).end))
//
// #define CLEAR(context,string) \
// ((string).pointer = (string).start, \
// memset((string).start, 0, (string).end-(string).start))
//
// #define JOIN(context,string_a,string_b) \
// ((yaml_string_join(&(string_a).start, &(string_a).pointer, \
// &(string_a).end, &(string_b).start, \
// &(string_b).pointer, &(string_b).end)) ? \
// ((string_b).pointer = (string_b).start, \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// /*
// * String check operations.
// */
//
// /*
// * Check the octet at the specified position.
// */
//
// #define CHECK_AT(string,octet,offset) \
// ((string).pointer[offset] == (yaml_char_t)(octet))
//
// /*
// * Check the current octet in the buffer.
// */
//
// #define CHECK(string,octet) CHECK_AT((string),(octet),0)
//
// /*
// * Check if the character at the specified position is an alphabetical
// * character, a digit, '_', or '-'.
// */
//
// #define IS_ALPHA_AT(string,offset) \
// (((string).pointer[offset] >= (yaml_char_t) '0' && \
// (string).pointer[offset] <= (yaml_char_t) '9') || \
// ((string).pointer[offset] >= (yaml_char_t) 'A' && \
// (string).pointer[offset] <= (yaml_char_t) 'Z') || \
// ((string).pointer[offset] >= (yaml_char_t) 'a' && \
// (string).pointer[offset] <= (yaml_char_t) 'z') || \
// (string).pointer[offset] == '_' || \
// (string).pointer[offset] == '-')
//
// #define IS_ALPHA(string) IS_ALPHA_AT((string),0)
//
// /*
// * Check if the character at the specified position is a digit.
// */
//
// #define IS_DIGIT_AT(string,offset) \
// (((string).pointer[offset] >= (yaml_char_t) '0' && \
// (string).pointer[offset] <= (yaml_char_t) '9'))
//
// #define IS_DIGIT(string) IS_DIGIT_AT((string),0)
//
// /*
// * Get the value of a digit.
// */
//
// #define AS_DIGIT_AT(string,offset) \
// ((string).pointer[offset] - (yaml_char_t) '0')
//
// #define AS_DIGIT(string) AS_DIGIT_AT((string),0)
//
// /*
// * Check if the character at the specified position is a hex-digit.
// */
//
// #define IS_HEX_AT(string,offset) \
// (((string).pointer[offset] >= (yaml_char_t) '0' && \
// (string).pointer[offset] <= (yaml_char_t) '9') || \
// ((string).pointer[offset] >= (yaml_char_t) 'A' && \
// (string).pointer[offset] <= (yaml_char_t) 'F') || \
// ((string).pointer[offset] >= (yaml_char_t) 'a' && \
// (string).pointer[offset] <= (yaml_char_t) 'f'))
//
// #define IS_HEX(string) IS_HEX_AT((string),0)
//
// /*
// * Get the value of a hex-digit.
// */
//
// #define AS_HEX_AT(string,offset) \
// (((string).pointer[offset] >= (yaml_char_t) 'A' && \
// (string).pointer[offset] <= (yaml_char_t) 'F') ? \
// ((string).pointer[offset] - (yaml_char_t) 'A' + 10) : \
// ((string).pointer[offset] >= (yaml_char_t) 'a' && \
// (string).pointer[offset] <= (yaml_char_t) 'f') ? \
// ((string).pointer[offset] - (yaml_char_t) 'a' + 10) : \
// ((string).pointer[offset] - (yaml_char_t) '0'))
//
// #define AS_HEX(string) AS_HEX_AT((string),0)
//
// /*
// * Check if the character is ASCII.
// */
//
// #define IS_ASCII_AT(string,offset) \
// ((string).pointer[offset] <= (yaml_char_t) '\x7F')
//
// #define IS_ASCII(string) IS_ASCII_AT((string),0)
//
// /*
// * Check if the character can be printed unescaped.
// */
//
// #define IS_PRINTABLE_AT(string,offset) \
// (((string).pointer[offset] == 0x0A) /* . == #x0A */ \
// || ((string).pointer[offset] >= 0x20 /* #x20 <= . <= #x7E */ \
// && (string).pointer[offset] <= 0x7E) \
// || ((string).pointer[offset] == 0xC2 /* #0xA0 <= . <= #xD7FF */ \
// && (string).pointer[offset+1] >= 0xA0) \
// || ((string).pointer[offset] > 0xC2 \
// && (string).pointer[offset] < 0xED) \
// || ((string).pointer[offset] == 0xED \
// && (string).pointer[offset+1] < 0xA0) \
// || ((string).pointer[offset] == 0xEE) \
// || ((string).pointer[offset] == 0xEF /* #xE000 <= . <= #xFFFD */ \
// && !((string).pointer[offset+1] == 0xBB /* && . != #xFEFF */ \
// && (string).pointer[offset+2] == 0xBF) \
// && !((string).pointer[offset+1] == 0xBF \
// && ((string).pointer[offset+2] == 0xBE \
// || (string).pointer[offset+2] == 0xBF))))
//
// #define IS_PRINTABLE(string) IS_PRINTABLE_AT((string),0)
//
// /*
// * Check if the character at the specified position is NUL.
// */
//
// #define IS_Z_AT(string,offset) CHECK_AT((string),'\0',(offset))
//
// #define IS_Z(string) IS_Z_AT((string),0)
//
// /*
// * Check if the character at the specified position is BOM.
// */
//
// #define IS_BOM_AT(string,offset) \
// (CHECK_AT((string),'\xEF',(offset)) \
// && CHECK_AT((string),'\xBB',(offset)+1) \
// && CHECK_AT((string),'\xBF',(offset)+2)) /* BOM (#xFEFF) */
//
// #define IS_BOM(string) IS_BOM_AT(string,0)
//
// /*
// * Check if the character at the specified position is space.
// */
//
// #define IS_SPACE_AT(string,offset) CHECK_AT((string),' ',(offset))
//
// #define IS_SPACE(string) IS_SPACE_AT((string),0)
//
// /*
// * Check if the character at the specified position is tab.
// */
//
// #define IS_TAB_AT(string,offset) CHECK_AT((string),'\t',(offset))
//
// #define IS_TAB(string) IS_TAB_AT((string),0)
//
// /*
// * Check if the character at the specified position is blank (space or tab).
// */
//
// #define IS_BLANK_AT(string,offset) \
// (IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset)))
//
// #define IS_BLANK(string) IS_BLANK_AT((string),0)
//
// /*
// * Check if the character at the specified position is a line break.
// */
//
// #define IS_BREAK_AT(string,offset) \
// (CHECK_AT((string),'\r',(offset)) /* CR (#xD)*/ \
// || CHECK_AT((string),'\n',(offset)) /* LF (#xA) */ \
// || (CHECK_AT((string),'\xC2',(offset)) \
// && CHECK_AT((string),'\x85',(offset)+1)) /* NEL (#x85) */ \
// || (CHECK_AT((string),'\xE2',(offset)) \
// && CHECK_AT((string),'\x80',(offset)+1) \
// && CHECK_AT((string),'\xA8',(offset)+2)) /* LS (#x2028) */ \
// || (CHECK_AT((string),'\xE2',(offset)) \
// && CHECK_AT((string),'\x80',(offset)+1) \
// && CHECK_AT((string),'\xA9',(offset)+2))) /* PS (#x2029) */
//
// #define IS_BREAK(string) IS_BREAK_AT((string),0)
//
// #define IS_CRLF_AT(string,offset) \
// (CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1))
//
// #define IS_CRLF(string) IS_CRLF_AT((string),0)
//
// /*
// * Check if the character is a line break or NUL.
// */
//
// #define IS_BREAKZ_AT(string,offset) \
// (IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset)))
//
// #define IS_BREAKZ(string) IS_BREAKZ_AT((string),0)
//
// /*
// * Check if the character is a line break, space, or NUL.
// */
//
// #define IS_SPACEZ_AT(string,offset) \
// (IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
//
// #define IS_SPACEZ(string) IS_SPACEZ_AT((string),0)
//
// /*
// * Check if the character is a line break, space, tab, or NUL.
// */
//
// #define IS_BLANKZ_AT(string,offset) \
// (IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
//
// #define IS_BLANKZ(string) IS_BLANKZ_AT((string),0)
//
// /*
// * Determine the width of the character.
// */
//
// #define WIDTH_AT(string,offset) \
// (((string).pointer[offset] & 0x80) == 0x00 ? 1 : \
// ((string).pointer[offset] & 0xE0) == 0xC0 ? 2 : \
// ((string).pointer[offset] & 0xF0) == 0xE0 ? 3 : \
// ((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0)
//
// #define WIDTH(string) WIDTH_AT((string),0)
//
// /*
// * Move the string pointer to the next character.
// */
//
// #define MOVE(string) ((string).pointer += WIDTH((string)))
//
// /*
// * Copy a character and move the pointers of both strings.
// */
//
// #define COPY(string_a,string_b) \
// ((*(string_b).pointer & 0x80) == 0x00 ? \
// (*((string_a).pointer++) = *((string_b).pointer++)) : \
// (*(string_b).pointer & 0xE0) == 0xC0 ? \
// (*((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++)) : \
// (*(string_b).pointer & 0xF0) == 0xE0 ? \
// (*((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++)) : \
// (*(string_b).pointer & 0xF8) == 0xF0 ? \
// (*((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++), \
// *((string_a).pointer++) = *((string_b).pointer++)) : 0)
//
// /*
// * Stack and queue management.
// */
//
// yaml_DECLARE(int)
// yaml_stack_extend(void **start, void **top, void **end);
//
// yaml_DECLARE(int)
// yaml_queue_extend(void **start, void **head, void **tail, void **end);
//
// #define STACK_INIT(context,stack,size) \
// (((stack).start = yaml_malloc((size)*sizeof(*(stack).start))) ? \
// ((stack).top = (stack).start, \
// (stack).end = (stack).start+(size), \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define STACK_DEL(context,stack) \
// (yaml_free((stack).start), \
// (stack).start = (stack).top = (stack).end = 0)
//
// #define STACK_EMPTY(context,stack) \
// ((stack).start == (stack).top)
//
// #define PUSH(context,stack,value) \
// (((stack).top != (stack).end \
// || yaml_stack_extend((void **)&(stack).start, \
// (void **)&(stack).top, (void **)&(stack).end)) ? \
// (*((stack).top++) = value, \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define POP(context,stack) \
// (*(--(stack).top))
//
// #define QUEUE_INIT(context,queue,size) \
// (((queue).start = yaml_malloc((size)*sizeof(*(queue).start))) ? \
// ((queue).head = (queue).tail = (queue).start, \
// (queue).end = (queue).start+(size), \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define QUEUE_DEL(context,queue) \
// (yaml_free((queue).start), \
// (queue).start = (queue).head = (queue).tail = (queue).end = 0)
//
// #define QUEUE_EMPTY(context,queue) \
// ((queue).head == (queue).tail)
//
// #define ENQUEUE(context,queue,value) \
// (((queue).tail != (queue).end \
// || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \
// (void **)&(queue).tail, (void **)&(queue).end)) ? \
// (*((queue).tail++) = value, \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// #define DEQUEUE(context,queue) \
// (*((queue).head++))
//
// #define QUEUE_INSERT(context,queue,index,value) \
// (((queue).tail != (queue).end \
// || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \
// (void **)&(queue).tail, (void **)&(queue).end)) ? \
// (memmove((queue).head+(index)+1,(queue).head+(index), \
// ((queue).tail-(queue).head-(index))*sizeof(*(queue).start)), \
// *((queue).head+(index)) = value, \
// (queue).tail++, \
// 1) : \
// ((context)->error = yaml_MEMORY_ERROR, \
// 0))
//
// /*
// * Token initializers.
// */
//
// #define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark) \
// (memset(&(token), 0, sizeof(yaml_token_t)), \
// (token).type = (token_type), \
// (token).start_mark = (token_start_mark), \
// (token).end_mark = (token_end_mark))
//
// #define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_STREAM_START_TOKEN,(start_mark),(end_mark)), \
// (token).data.stream_start.encoding = (token_encoding))
//
// #define STREAM_END_TOKEN_INIT(token,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_STREAM_END_TOKEN,(start_mark),(end_mark)))
//
// #define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_ALIAS_TOKEN,(start_mark),(end_mark)), \
// (token).data.alias.value = (token_value))
//
// #define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_ANCHOR_TOKEN,(start_mark),(end_mark)), \
// (token).data.anchor.value = (token_value))
//
// #define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_TAG_TOKEN,(start_mark),(end_mark)), \
// (token).data.tag.handle = (token_handle), \
// (token).data.tag.suffix = (token_suffix))
//
// #define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_SCALAR_TOKEN,(start_mark),(end_mark)), \
// (token).data.scalar.value = (token_value), \
// (token).data.scalar.length = (token_length), \
// (token).data.scalar.style = (token_style))
//
// #define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \
// (token).data.version_directive.major = (token_major), \
// (token).data.version_directive.minor = (token_minor))
//
// #define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark) \
// (TOKEN_INIT((token),yaml_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \
// (token).data.tag_directive.handle = (token_handle), \
// (token).data.tag_directive.prefix = (token_prefix))
//
// /*
// * Event initializers.
// */
//
// #define EVENT_INIT(event,event_type,event_start_mark,event_end_mark) \
// (memset(&(event), 0, sizeof(yaml_event_t)), \
// (event).type = (event_type), \
// (event).start_mark = (event_start_mark), \
// (event).end_mark = (event_end_mark))
//
// #define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_STREAM_START_EVENT,(start_mark),(end_mark)), \
// (event).data.stream_start.encoding = (event_encoding))
//
// #define STREAM_END_EVENT_INIT(event,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_STREAM_END_EVENT,(start_mark),(end_mark)))
//
// #define DOCUMENT_START_EVENT_INIT(event,event_version_directive, \
// event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_DOCUMENT_START_EVENT,(start_mark),(end_mark)), \
// (event).data.document_start.version_directive = (event_version_directive), \
// (event).data.document_start.tag_directives.start = (event_tag_directives_start), \
// (event).data.document_start.tag_directives.end = (event_tag_directives_end), \
// (event).data.document_start.implicit = (event_implicit))
//
// #define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_DOCUMENT_END_EVENT,(start_mark),(end_mark)), \
// (event).data.document_end.implicit = (event_implicit))
//
// #define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_ALIAS_EVENT,(start_mark),(end_mark)), \
// (event).data.alias.anchor = (event_anchor))
//
// #define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length, \
// event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_SCALAR_EVENT,(start_mark),(end_mark)), \
// (event).data.scalar.anchor = (event_anchor), \
// (event).data.scalar.tag = (event_tag), \
// (event).data.scalar.value = (event_value), \
// (event).data.scalar.length = (event_length), \
// (event).data.scalar.plain_implicit = (event_plain_implicit), \
// (event).data.scalar.quoted_implicit = (event_quoted_implicit), \
// (event).data.scalar.style = (event_style))
//
// #define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag, \
// event_implicit,event_style,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_SEQUENCE_START_EVENT,(start_mark),(end_mark)), \
// (event).data.sequence_start.anchor = (event_anchor), \
// (event).data.sequence_start.tag = (event_tag), \
// (event).data.sequence_start.implicit = (event_implicit), \
// (event).data.sequence_start.style = (event_style))
//
// #define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_SEQUENCE_END_EVENT,(start_mark),(end_mark)))
//
// #define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag, \
// event_implicit,event_style,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_MAPPING_START_EVENT,(start_mark),(end_mark)), \
// (event).data.mapping_start.anchor = (event_anchor), \
// (event).data.mapping_start.tag = (event_tag), \
// (event).data.mapping_start.implicit = (event_implicit), \
// (event).data.mapping_start.style = (event_style))
//
// #define MAPPING_END_EVENT_INIT(event,start_mark,end_mark) \
// (EVENT_INIT((event),yaml_MAPPING_END_EVENT,(start_mark),(end_mark)))
//
// /*
// * Document initializer.
// */
//
// #define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end, \
// document_version_directive,document_tag_directives_start, \
// document_tag_directives_end,document_start_implicit, \
// document_end_implicit,document_start_mark,document_end_mark) \
// (memset(&(document), 0, sizeof(yaml_document_t)), \
// (document).nodes.start = (document_nodes_start), \
// (document).nodes.end = (document_nodes_end), \
// (document).nodes.top = (document_nodes_start), \
// (document).version_directive = (document_version_directive), \
// (document).tag_directives.start = (document_tag_directives_start), \
// (document).tag_directives.end = (document_tag_directives_end), \
// (document).start_implicit = (document_start_implicit), \
// (document).end_implicit = (document_end_implicit), \
// (document).start_mark = (document_start_mark), \
// (document).end_mark = (document_end_mark))
//
// /*
// * Node initializers.
// */
//
// #define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark) \
// (memset(&(node), 0, sizeof(yaml_node_t)), \
// (node).type = (node_type), \
// (node).tag = (node_tag), \
// (node).start_mark = (node_start_mark), \
// (node).end_mark = (node_end_mark))
//
// #define SCALAR_NODE_INIT(node,node_tag,node_value,node_length, \
// node_style,start_mark,end_mark) \
// (NODE_INIT((node),yaml_SCALAR_NODE,(node_tag),(start_mark),(end_mark)), \
// (node).data.scalar.value = (node_value), \
// (node).data.scalar.length = (node_length), \
// (node).data.scalar.style = (node_style))
//
// #define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end, \
// node_style,start_mark,end_mark) \
// (NODE_INIT((node),yaml_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)), \
// (node).data.sequence.items.start = (node_items_start), \
// (node).data.sequence.items.end = (node_items_end), \
// (node).data.sequence.items.top = (node_items_start), \
// (node).data.sequence.style = (node_style))
//
// #define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end, \
// node_style,start_mark,end_mark) \
// (NODE_INIT((node),yaml_MAPPING_NODE,(node_tag),(start_mark),(end_mark)), \
// (node).data.mapping.pairs.start = (node_pairs_start), \
// (node).data.mapping.pairs.end = (node_pairs_end), \
// (node).data.mapping.pairs.top = (node_pairs_start), \
// (node).data.mapping.style = (node_style))
//

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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package candiedyaml
import (
"fmt"
"io"
)
/** The version directive data. */
type yaml_version_directive_t struct {
major int // The major version number
minor int // The minor version number
}
/** The tag directive data. */
type yaml_tag_directive_t struct {
handle []byte // The tag handle
prefix []byte // The tag prefix
}
/** The stream encoding. */
type yaml_encoding_t int
const (
/** Let the parser choose the encoding. */
yaml_ANY_ENCODING yaml_encoding_t = iota
/** The defau lt UTF-8 encoding. */
yaml_UTF8_ENCODING
/** The UTF-16-LE encoding with BOM. */
yaml_UTF16LE_ENCODING
/** The UTF-16-BE encoding with BOM. */
yaml_UTF16BE_ENCODING
)
/** Line break types. */
type yaml_break_t int
const (
yaml_ANY_BREAK yaml_break_t = iota /** Let the parser choose the break type. */
yaml_CR_BREAK /** Use CR for line breaks (Mac style). */
yaml_LN_BREAK /** Use LN for line breaks (Unix style). */
yaml_CRLN_BREAK /** Use CR LN for line breaks (DOS style). */
)
/** Many bad things could happen with the parser and emitter. */
type YAML_error_type_t int
const (
/** No error is produced. */
yaml_NO_ERROR YAML_error_type_t = iota
/** Cannot allocate or reallocate a block of memory. */
yaml_MEMORY_ERROR
/** Cannot read or decode the input stream. */
yaml_READER_ERROR
/** Cannot scan the input stream. */
yaml_SCANNER_ERROR
/** Cannot parse the input stream. */
yaml_PARSER_ERROR
/** Cannot compose a YAML document. */
yaml_COMPOSER_ERROR
/** Cannot write to the output stream. */
yaml_WRITER_ERROR
/** Cannot emit a YAML stream. */
yaml_EMITTER_ERROR
)
/** The pointer position. */
type YAML_mark_t struct {
/** The position index. */
index int
/** The position line. */
line int
/** The position column. */
column int
}
func (m YAML_mark_t) String() string {
return fmt.Sprintf("line %d, column %d", m.line, m.column)
}
/** @} */
/**
* @defgroup styles Node Styles
* @{
*/
type yaml_style_t int
/** Scalar styles. */
type yaml_scalar_style_t yaml_style_t
const (
/** Let the emitter choose the style. */
yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
/** The plain scalar style. */
yaml_PLAIN_SCALAR_STYLE
/** The single-quoted scalar style. */
yaml_SINGLE_QUOTED_SCALAR_STYLE
/** The double-quoted scalar style. */
yaml_DOUBLE_QUOTED_SCALAR_STYLE
/** The literal scalar style. */
yaml_LITERAL_SCALAR_STYLE
/** The folded scalar style. */
yaml_FOLDED_SCALAR_STYLE
)
/** Sequence styles. */
type yaml_sequence_style_t yaml_style_t
const (
/** Let the emitter choose the style. */
yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
/** The block sequence style. */
yaml_BLOCK_SEQUENCE_STYLE
/** The flow sequence style. */
yaml_FLOW_SEQUENCE_STYLE
)
/** Mapping styles. */
type yaml_mapping_style_t yaml_style_t
const (
/** Let the emitter choose the style. */
yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
/** The block mapping style. */
yaml_BLOCK_MAPPING_STYLE
/** The flow mapping style. */
yaml_FLOW_MAPPING_STYLE
/* yaml_FLOW_SET_MAPPING_STYLE */
)
/** @} */
/**
* @defgroup tokens Tokens
* @{
*/
/** Token types. */
type yaml_token_type_t int
const (
/** An empty token. */
yaml_NO_TOKEN yaml_token_type_t = iota
/** A STREAM-START token. */
yaml_STREAM_START_TOKEN
/** A STREAM-END token. */
yaml_STREAM_END_TOKEN
/** A VERSION-DIRECTIVE token. */
yaml_VERSION_DIRECTIVE_TOKEN
/** A TAG-DIRECTIVE token. */
yaml_TAG_DIRECTIVE_TOKEN
/** A DOCUMENT-START token. */
yaml_DOCUMENT_START_TOKEN
/** A DOCUMENT-END token. */
yaml_DOCUMENT_END_TOKEN
/** A BLOCK-SEQUENCE-START token. */
yaml_BLOCK_SEQUENCE_START_TOKEN
/** A BLOCK-SEQUENCE-END token. */
yaml_BLOCK_MAPPING_START_TOKEN
/** A BLOCK-END token. */
yaml_BLOCK_END_TOKEN
/** A FLOW-SEQUENCE-START token. */
yaml_FLOW_SEQUENCE_START_TOKEN
/** A FLOW-SEQUENCE-END token. */
yaml_FLOW_SEQUENCE_END_TOKEN
/** A FLOW-MAPPING-START token. */
yaml_FLOW_MAPPING_START_TOKEN
/** A FLOW-MAPPING-END token. */
yaml_FLOW_MAPPING_END_TOKEN
/** A BLOCK-ENTRY token. */
yaml_BLOCK_ENTRY_TOKEN
/** A FLOW-ENTRY token. */
yaml_FLOW_ENTRY_TOKEN
/** A KEY token. */
yaml_KEY_TOKEN
/** A VALUE token. */
yaml_VALUE_TOKEN
/** An ALIAS token. */
yaml_ALIAS_TOKEN
/** An ANCHOR token. */
yaml_ANCHOR_TOKEN
/** A TAG token. */
yaml_TAG_TOKEN
/** A SCALAR token. */
yaml_SCALAR_TOKEN
)
/** The token structure. */
type yaml_token_t struct {
/** The token type. */
token_type yaml_token_type_t
/** The token data. */
/** The stream start (for @c yaml_STREAM_START_TOKEN). */
encoding yaml_encoding_t
/** The alias (for @c yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN,yaml_TAG_TOKEN ). */
/** The anchor (for @c ). */
/** The scalar value (for @c ). */
value []byte
/** The tag suffix. */
suffix []byte
/** The scalar value (for @c yaml_SCALAR_TOKEN). */
/** The scalar style. */
style yaml_scalar_style_t
/** The version directive (for @c yaml_VERSION_DIRECTIVE_TOKEN). */
version_directive yaml_version_directive_t
/** The tag directive (for @c yaml_TAG_DIRECTIVE_TOKEN). */
prefix []byte
/** The beginning of the token. */
start_mark YAML_mark_t
/** The end of the token. */
end_mark YAML_mark_t
major, minor int
}
/**
* @defgroup events Events
* @{
*/
/** Event types. */
type yaml_event_type_t int
const (
/** An empty event. */
yaml_NO_EVENT yaml_event_type_t = iota
/** A STREAM-START event. */
yaml_STREAM_START_EVENT
/** A STREAM-END event. */
yaml_STREAM_END_EVENT
/** A DOCUMENT-START event. */
yaml_DOCUMENT_START_EVENT
/** A DOCUMENT-END event. */
yaml_DOCUMENT_END_EVENT
/** An ALIAS event. */
yaml_ALIAS_EVENT
/** A SCALAR event. */
yaml_SCALAR_EVENT
/** A SEQUENCE-START event. */
yaml_SEQUENCE_START_EVENT
/** A SEQUENCE-END event. */
yaml_SEQUENCE_END_EVENT
/** A MAPPING-START event. */
yaml_MAPPING_START_EVENT
/** A MAPPING-END event. */
yaml_MAPPING_END_EVENT
)
/** The event structure. */
type yaml_event_t struct {
/** The event type. */
event_type yaml_event_type_t
/** The stream parameters (for @c yaml_STREAM_START_EVENT). */
encoding yaml_encoding_t
/** The document parameters (for @c yaml_DOCUMENT_START_EVENT). */
version_directive *yaml_version_directive_t
/** The beginning and end of the tag directives list. */
tag_directives []yaml_tag_directive_t
/** The document parameters (for @c yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT,yaml_MAPPING_START_EVENT). */
/** Is the document indicator implicit? */
implicit bool
/** The alias parameters (for @c yaml_ALIAS_EVENT,yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). */
/** The anchor. */
anchor []byte
/** The scalar parameters (for @c yaml_SCALAR_EVENT,yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). */
/** The tag. */
tag []byte
/** The scalar value. */
value []byte
/** Is the tag optional for the plain style? */
plain_implicit bool
/** Is the tag optional for any non-plain style? */
quoted_implicit bool
/** The sequence parameters (for @c yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). */
/** The sequence style. */
/** The scalar style. */
style yaml_style_t
/** The beginning of the event. */
start_mark, end_mark YAML_mark_t
}
/**
* @defgroup nodes Nodes
* @{
*/
const (
/** The tag @c !!null with the only possible value: @c null. */
yaml_NULL_TAG = "tag:yaml.org,2002:null"
/** The tag @c !!bool with the values: @c true and @c falce. */
yaml_BOOL_TAG = "tag:yaml.org,2002:bool"
/** The tag @c !!str for string values. */
yaml_STR_TAG = "tag:yaml.org,2002:str"
/** The tag @c !!int for integer values. */
yaml_INT_TAG = "tag:yaml.org,2002:int"
/** The tag @c !!float for float values. */
yaml_FLOAT_TAG = "tag:yaml.org,2002:float"
/** The tag @c !!timestamp for date and time values. */
yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp"
/** The tag @c !!seq is used to denote sequences. */
yaml_SEQ_TAG = "tag:yaml.org,2002:seq"
/** The tag @c !!map is used to denote mapping. */
yaml_MAP_TAG = "tag:yaml.org,2002:map"
/** The default scalar tag is @c !!str. */
yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG
/** The default sequence tag is @c !!seq. */
yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG
/** The default mapping tag is @c !!map. */
yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG
yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
)
/** Node types. */
type yaml_node_type_t int
const (
/** An empty node. */
yaml_NO_NODE yaml_node_type_t = iota
/** A scalar node. */
yaml_SCALAR_NODE
/** A sequence node. */
yaml_SEQUENCE_NODE
/** A mapping node. */
yaml_MAPPING_NODE
)
/** An element of a sequence node. */
type yaml_node_item_t int
/** An element of a mapping node. */
type yaml_node_pair_t struct {
/** The key of the element. */
key int
/** The value of the element. */
value int
}
/** The node structure. */
type yaml_node_t struct {
/** The node type. */
node_type yaml_node_type_t
/** The node tag. */
tag []byte
/** The scalar parameters (for @c yaml_SCALAR_NODE). */
scalar struct {
/** The scalar value. */
value []byte
/** The scalar style. */
style yaml_scalar_style_t
}
/** The sequence parameters (for @c yaml_SEQUENCE_NODE). */
sequence struct {
/** The stack of sequence items. */
items []yaml_node_item_t
/** The sequence style. */
style yaml_sequence_style_t
}
/** The mapping parameters (for @c yaml_MAPPING_NODE). */
mapping struct {
/** The stack of mapping pairs (key, value). */
pairs []yaml_node_pair_t
/** The mapping style. */
style yaml_mapping_style_t
}
/** The beginning of the node. */
start_mark YAML_mark_t
/** The end of the node. */
end_mark YAML_mark_t
}
/** The document structure. */
type yaml_document_t struct {
/** The document nodes. */
nodes []yaml_node_t
/** The version directive. */
version_directive *yaml_version_directive_t
/** The list of tag directives. */
tags []yaml_tag_directive_t
/** Is the document start indicator implicit? */
start_implicit bool
/** Is the document end indicator implicit? */
end_implicit bool
/** The beginning of the document. */
start_mark YAML_mark_t
/** The end of the document. */
end_mark YAML_mark_t
}
/**
* The prototype of a read handler.
*
* The read handler is called when the parser needs to read more bytes from the
* source. The handler should write not more than @a size bytes to the @a
* buffer. The number of written bytes should be set to the @a length variable.
*
* @param[in,out] data A pointer to an application data specified by
* yaml_parser_set_input().
* @param[out] buffer The buffer to write the data from the source.
* @param[in] size The size of the buffer.
* @param[out] size_read The actual number of bytes read from the source.
*
* @returns On success, the handler should return @c 1. If the handler failed,
* the returned value should be @c 0. On EOF, the handler should set the
* @a size_read to @c 0 and return @c 1.
*/
type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
/**
* This structure holds information about a potential simple key.
*/
type yaml_simple_key_t struct {
/** Is a simple key possible? */
possible bool
/** Is a simple key required? */
required bool
/** The number of the token. */
token_number int
/** The position mark. */
mark YAML_mark_t
}
/**
* The states of the parser.
*/
type yaml_parser_state_t int
const (
/** Expect STREAM-START. */
yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
/** Expect the beginning of an implicit document. */
yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
/** Expect DOCUMENT-START. */
yaml_PARSE_DOCUMENT_START_STATE
/** Expect the content of a document. */
yaml_PARSE_DOCUMENT_CONTENT_STATE
/** Expect DOCUMENT-END. */
yaml_PARSE_DOCUMENT_END_STATE
/** Expect a block node. */
yaml_PARSE_BLOCK_NODE_STATE
/** Expect a block node or indentless sequence. */
yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE
/** Expect a flow node. */
yaml_PARSE_FLOW_NODE_STATE
/** Expect the first entry of a block sequence. */
yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
/** Expect an entry of a block sequence. */
yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
/** Expect an entry of an indentless sequence. */
yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
/** Expect the first key of a block mapping. */
yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
/** Expect a block mapping key. */
yaml_PARSE_BLOCK_MAPPING_KEY_STATE
/** Expect a block mapping value. */
yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
/** Expect the first entry of a flow sequence. */
yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
/** Expect an entry of a flow sequence. */
yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
/** Expect a key of an ordered mapping. */
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
/** Expect a value of an ordered mapping. */
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
/** Expect the and of an ordered mapping entry. */
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
/** Expect the first key of a flow mapping. */
yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
/** Expect a key of a flow mapping. */
yaml_PARSE_FLOW_MAPPING_KEY_STATE
/** Expect a value of a flow mapping. */
yaml_PARSE_FLOW_MAPPING_VALUE_STATE
/** Expect an empty value of a flow mapping. */
yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE
/** Expect nothing. */
yaml_PARSE_END_STATE
)
/**
* This structure holds aliases data.
*/
type yaml_alias_data_t struct {
/** The anchor. */
anchor []byte
/** The node id. */
index int
/** The anchor mark. */
mark YAML_mark_t
}
/**
* The parser structure.
*
* All members are internal. Manage the structure using the @c yaml_parser_
* family of functions.
*/
type yaml_parser_t struct {
/**
* @name Error handling
* @{
*/
/** Error type. */
error YAML_error_type_t
/** Error description. */
problem string
/** The byte about which the problem occured. */
problem_offset int
/** The problematic value (@c -1 is none). */
problem_value int
/** The problem position. */
problem_mark YAML_mark_t
/** The error context. */
context string
/** The context position. */
context_mark YAML_mark_t
/**
* @}
*/
/**
* @name Reader stuff
* @{
*/
/** Read handler. */
read_handler yaml_read_handler_t
/** Reader input data. */
input_reader io.Reader
input []byte
input_pos int
/** EOF flag */
eof bool
/** The working buffer. */
buffer []byte
buffer_pos int
/* The number of unread characters in the buffer. */
unread int
/** The raw buffer. */
raw_buffer []byte
raw_buffer_pos int
/** The input encoding. */
encoding yaml_encoding_t
/** The offset of the current position (in bytes). */
offset int
/** The mark of the current position. */
mark YAML_mark_t
/**
* @}
*/
/**
* @name Scanner stuff
* @{
*/
/** Have we started to scan the input stream? */
stream_start_produced bool
/** Have we reached the end of the input stream? */
stream_end_produced bool
/** The number of unclosed '[' and '{' indicators. */
flow_level int
/** The tokens queue. */
tokens []yaml_token_t
tokens_head int
/** The number of tokens fetched from the queue. */
tokens_parsed int
/* Does the tokens queue contain a token ready for dequeueing. */
token_available bool
/** The indentation levels stack. */
indents []int
/** The current indentation level. */
indent int
/** May a simple key occur at the current position? */
simple_key_allowed bool
/** The stack of simple keys. */
simple_keys []yaml_simple_key_t
/**
* @}
*/
/**
* @name Parser stuff
* @{
*/
/** The parser states stack. */
states []yaml_parser_state_t
/** The current parser state. */
state yaml_parser_state_t
/** The stack of marks. */
marks []YAML_mark_t
/** The list of TAG directives. */
tag_directives []yaml_tag_directive_t
/**
* @}
*/
/**
* @name Dumper stuff
* @{
*/
/** The alias data. */
aliases []yaml_alias_data_t
/** The currently parsed document. */
document *yaml_document_t
/**
* @}
*/
}
/**
* The prototype of a write handler.
*
* The write handler is called when the emitter needs to flush the accumulated
* characters to the output. The handler should write @a size bytes of the
* @a buffer to the output.
*
* @param[in,out] data A pointer to an application data specified by
* yaml_emitter_set_output().
* @param[in] buffer The buffer with bytes to be written.
* @param[in] size The size of the buffer.
*
* @returns On success, the handler should return @c 1. If the handler failed,
* the returned value should be @c 0.
*/
type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
/** The emitter states. */
type yaml_emitter_state_t int
const (
/** Expect STREAM-START. */
yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
/** Expect the first DOCUMENT-START or STREAM-END. */
yaml_EMIT_FIRST_DOCUMENT_START_STATE
/** Expect DOCUMENT-START or STREAM-END. */
yaml_EMIT_DOCUMENT_START_STATE
/** Expect the content of a document. */
yaml_EMIT_DOCUMENT_CONTENT_STATE
/** Expect DOCUMENT-END. */
yaml_EMIT_DOCUMENT_END_STATE
/** Expect the first item of a flow sequence. */
yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
/** Expect an item of a flow sequence. */
yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE
/** Expect the first key of a flow mapping. */
yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
/** Expect a key of a flow mapping. */
yaml_EMIT_FLOW_MAPPING_KEY_STATE
/** Expect a value for a simple key of a flow mapping. */
yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE
/** Expect a value of a flow mapping. */
yaml_EMIT_FLOW_MAPPING_VALUE_STATE
/** Expect the first item of a block sequence. */
yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
/** Expect an item of a block sequence. */
yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE
/** Expect the first key of a block mapping. */
yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
/** Expect the key of a block mapping. */
yaml_EMIT_BLOCK_MAPPING_KEY_STATE
/** Expect a value for a simple key of a block mapping. */
yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE
/** Expect a value of a block mapping. */
yaml_EMIT_BLOCK_MAPPING_VALUE_STATE
/** Expect nothing. */
yaml_EMIT_END_STATE
)
/**
* The emitter structure.
*
* All members are internal. Manage the structure using the @c yaml_emitter_
* family of functions.
*/
type yaml_emitter_t struct {
/**
* @name Error handling
* @{
*/
/** Error type. */
error YAML_error_type_t
/** Error description. */
problem string
/**
* @}
*/
/**
* @name Writer stuff
* @{
*/
/** Write handler. */
write_handler yaml_write_handler_t
/** Standard (string or file) output data. */
output_buffer *[]byte
output_writer io.Writer
/** The working buffer. */
buffer []byte
buffer_pos int
/** The raw buffer. */
raw_buffer []byte
raw_buffer_pos int
/** The stream encoding. */
encoding yaml_encoding_t
/**
* @}
*/
/**
* @name Emitter stuff
* @{
*/
/** If the output is in the canonical style? */
canonical bool
/** The number of indentation spaces. */
best_indent int
/** The preferred width of the output lines. */
best_width int
/** Allow unescaped non-ASCII characters? */
unicode bool
/** The preferred line break. */
line_break yaml_break_t
/** The stack of states. */
states []yaml_emitter_state_t
/** The current emitter state. */
state yaml_emitter_state_t
/** The event queue. */
events []yaml_event_t
events_head int
/** The stack of indentation levels. */
indents []int
/** The list of tag directives. */
tag_directives []yaml_tag_directive_t
/** The current indentation level. */
indent int
/** The current flow level. */
flow_level int
/** Is it the document root context? */
root_context bool
/** Is it a sequence context? */
sequence_context bool
/** Is it a mapping context? */
mapping_context bool
/** Is it a simple mapping key context? */
simple_key_context bool
/** The current line. */
line int
/** The current column. */
column int
/** If the last character was a whitespace? */
whitespace bool
/** If the last character was an indentation character (' ', '-', '?', ':')? */
indention bool
/** If an explicit document end is required? */
open_ended bool
/** Anchor analysis. */
anchor_data struct {
/** The anchor value. */
anchor []byte
/** Is it an alias? */
alias bool
}
/** Tag analysis. */
tag_data struct {
/** The tag handle. */
handle []byte
/** The tag suffix. */
suffix []byte
}
/** Scalar analysis. */
scalar_data struct {
/** The scalar value. */
value []byte
/** Does the scalar contain line breaks? */
multiline bool
/** Can the scalar be expessed in the flow plain style? */
flow_plain_allowed bool
/** Can the scalar be expressed in the block plain style? */
block_plain_allowed bool
/** Can the scalar be expressed in the single quoted style? */
single_quoted_allowed bool
/** Can the scalar be expressed in the literal or folded styles? */
block_allowed bool
/** The output style. */
style yaml_scalar_style_t
}
/**
* @}
*/
/**
* @name Dumper stuff
* @{
*/
/** If the stream was already opened? */
opened bool
/** If the stream was already closed? */
closed bool
/** The information associated with the document nodes. */
anchors *struct {
/** The number of references. */
references int
/** The anchor id. */
anchor int
/** If the node has been emitted? */
serialized bool
}
/** The last assigned anchor id. */
last_anchor_id int
/** The currently emitted document. */
document *yaml_document_t
/**
* @}
*/
}

21
vendor/github.com/cpuguy83/go-md2man/LICENSE.md generated vendored Normal file
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014 Brian Goff
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

19
vendor/github.com/cpuguy83/go-md2man/md2man/md2man.go generated vendored Normal file
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package md2man
import (
"github.com/russross/blackfriday"
)
func Render(doc []byte) []byte {
renderer := RoffRenderer(0)
extensions := 0
extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
extensions |= blackfriday.EXTENSION_TABLES
extensions |= blackfriday.EXTENSION_FENCED_CODE
extensions |= blackfriday.EXTENSION_AUTOLINK
extensions |= blackfriday.EXTENSION_SPACE_HEADERS
extensions |= blackfriday.EXTENSION_FOOTNOTES
extensions |= blackfriday.EXTENSION_TITLEBLOCK
return blackfriday.Markdown(doc, renderer, extensions)
}

269
vendor/github.com/cpuguy83/go-md2man/md2man/roff.go generated vendored Normal file
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package md2man
import (
"bytes"
"fmt"
"html"
"strings"
"github.com/russross/blackfriday"
)
type roffRenderer struct{}
func RoffRenderer(flags int) blackfriday.Renderer {
return &roffRenderer{}
}
func (r *roffRenderer) GetFlags() int {
return 0
}
func (r *roffRenderer) TitleBlock(out *bytes.Buffer, text []byte) {
out.WriteString(".TH ")
splitText := bytes.Split(text, []byte("\n"))
for i, line := range splitText {
line = bytes.TrimPrefix(line, []byte("% "))
if i == 0 {
line = bytes.Replace(line, []byte("("), []byte("\" \""), 1)
line = bytes.Replace(line, []byte(")"), []byte("\" \""), 1)
}
line = append([]byte("\""), line...)
line = append(line, []byte("\" ")...)
out.Write(line)
}
out.WriteString(" \"\"\n")
}
func (r *roffRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string) {
out.WriteString("\n.PP\n.RS\n\n.nf\n")
escapeSpecialChars(out, text)
out.WriteString("\n.fi\n.RE\n")
}
func (r *roffRenderer) BlockQuote(out *bytes.Buffer, text []byte) {
out.WriteString("\n.PP\n.RS\n")
out.Write(text)
out.WriteString("\n.RE\n")
}
func (r *roffRenderer) BlockHtml(out *bytes.Buffer, text []byte) {
out.Write(text)
}
func (r *roffRenderer) Header(out *bytes.Buffer, text func() bool, level int, id string) {
marker := out.Len()
switch {
case marker == 0:
// This is the doc header
out.WriteString(".TH ")
case level == 1:
out.WriteString("\n\n.SH ")
case level == 2:
out.WriteString("\n.SH ")
default:
out.WriteString("\n.SS ")
}
if !text() {
out.Truncate(marker)
return
}
}
func (r *roffRenderer) HRule(out *bytes.Buffer) {
out.WriteString("\n.ti 0\n\\l'\\n(.lu'\n")
}
func (r *roffRenderer) List(out *bytes.Buffer, text func() bool, flags int) {
marker := out.Len()
out.WriteString(".IP ")
if flags&blackfriday.LIST_TYPE_ORDERED != 0 {
out.WriteString("\\(bu 2")
} else {
out.WriteString("\\n+[step" + string(flags) + "]")
}
out.WriteString("\n")
if !text() {
out.Truncate(marker)
return
}
}
func (r *roffRenderer) ListItem(out *bytes.Buffer, text []byte, flags int) {
out.WriteString("\n\\item ")
out.Write(text)
}
func (r *roffRenderer) Paragraph(out *bytes.Buffer, text func() bool) {
marker := out.Len()
out.WriteString("\n.PP\n")
if !text() {
out.Truncate(marker)
return
}
if marker != 0 {
out.WriteString("\n")
}
}
// TODO: This might now work
func (r *roffRenderer) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
out.WriteString(".TS\nallbox;\n")
out.Write(header)
out.Write(body)
out.WriteString("\n.TE\n")
}
func (r *roffRenderer) TableRow(out *bytes.Buffer, text []byte) {
if out.Len() > 0 {
out.WriteString("\n")
}
out.Write(text)
out.WriteString("\n")
}
func (r *roffRenderer) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
if out.Len() > 0 {
out.WriteString(" ")
}
out.Write(text)
out.WriteString(" ")
}
// TODO: This is probably broken
func (r *roffRenderer) TableCell(out *bytes.Buffer, text []byte, align int) {
if out.Len() > 0 {
out.WriteString("\t")
}
out.Write(text)
out.WriteString("\t")
}
func (r *roffRenderer) Footnotes(out *bytes.Buffer, text func() bool) {
}
func (r *roffRenderer) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) {
}
func (r *roffRenderer) AutoLink(out *bytes.Buffer, link []byte, kind int) {
out.WriteString("\n\\[la]")
out.Write(link)
out.WriteString("\\[ra]")
}
func (r *roffRenderer) CodeSpan(out *bytes.Buffer, text []byte) {
out.WriteString("\\fB\\fC")
escapeSpecialChars(out, text)
out.WriteString("\\fR")
}
func (r *roffRenderer) DoubleEmphasis(out *bytes.Buffer, text []byte) {
out.WriteString("\\fB")
out.Write(text)
out.WriteString("\\fP")
}
func (r *roffRenderer) Emphasis(out *bytes.Buffer, text []byte) {
out.WriteString("\\fI")
out.Write(text)
out.WriteString("\\fP")
}
func (r *roffRenderer) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) {
}
func (r *roffRenderer) LineBreak(out *bytes.Buffer) {
out.WriteString("\n.br\n")
}
func (r *roffRenderer) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
r.AutoLink(out, link, 0)
}
func (r *roffRenderer) RawHtmlTag(out *bytes.Buffer, tag []byte) {
out.Write(tag)
}
func (r *roffRenderer) TripleEmphasis(out *bytes.Buffer, text []byte) {
out.WriteString("\\s+2")
out.Write(text)
out.WriteString("\\s-2")
}
func (r *roffRenderer) StrikeThrough(out *bytes.Buffer, text []byte) {
}
func (r *roffRenderer) FootnoteRef(out *bytes.Buffer, ref []byte, id int) {
}
func (r *roffRenderer) Entity(out *bytes.Buffer, entity []byte) {
out.WriteString(html.UnescapeString(string(entity)))
}
func processFooterText(text []byte) []byte {
text = bytes.TrimPrefix(text, []byte("% "))
newText := []byte{}
textArr := strings.Split(string(text), ") ")
for i, w := range textArr {
if i == 0 {
w = strings.Replace(w, "(", "\" \"", 1)
w = fmt.Sprintf("\"%s\"", w)
} else {
w = fmt.Sprintf(" \"%s\"", w)
}
newText = append(newText, []byte(w)...)
}
newText = append(newText, []byte(" \"\"")...)
return newText
}
func (r *roffRenderer) NormalText(out *bytes.Buffer, text []byte) {
escapeSpecialChars(out, text)
}
func (r *roffRenderer) DocumentHeader(out *bytes.Buffer) {
}
func (r *roffRenderer) DocumentFooter(out *bytes.Buffer) {
}
func needsBackslash(c byte) bool {
for _, r := range []byte("-_&\\~") {
if c == r {
return true
}
}
return false
}
func escapeSpecialChars(out *bytes.Buffer, text []byte) {
for i := 0; i < len(text); i++ {
// directly copy normal characters
org := i
for i < len(text) && !needsBackslash(text[i]) {
i++
}
if i > org {
out.Write(text[org:i])
}
// escape a character
if i >= len(text) {
break
}
out.WriteByte('\\')
out.WriteByte(text[i])
}
}

13
vendor/github.com/davecgh/go-spew/LICENSE generated vendored Normal file
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@ -0,0 +1,13 @@
Copyright (c) 2012-2013 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

151
vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored Normal file
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// Copyright (c) 2015 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine and "-tags disableunsafe"
// is not added to the go build command line.
// +build !appengine,!disableunsafe
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
var (
// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
// internal reflect.Value fields. These values are valid before golang
// commit ecccf07e7f9d which changed the format. The are also valid
// after commit 82f48826c6c7 which changed the format again to mirror
// the original format. Code in the init function updates these offsets
// as necessary.
offsetPtr = uintptr(ptrSize)
offsetScalar = uintptr(0)
offsetFlag = uintptr(ptrSize * 2)
// flagKindWidth and flagKindShift indicate various bits that the
// reflect package uses internally to track kind information.
//
// flagRO indicates whether or not the value field of a reflect.Value is
// read-only.
//
// flagIndir indicates whether the value field of a reflect.Value is
// the actual data or a pointer to the data.
//
// These values are valid before golang commit 90a7c3c86944 which
// changed their positions. Code in the init function updates these
// flags as necessary.
flagKindWidth = uintptr(5)
flagKindShift = uintptr(flagKindWidth - 1)
flagRO = uintptr(1 << 0)
flagIndir = uintptr(1 << 1)
)
func init() {
// Older versions of reflect.Value stored small integers directly in the
// ptr field (which is named val in the older versions). Versions
// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
// scalar for this purpose which unfortunately came before the flag
// field, so the offset of the flag field is different for those
// versions.
//
// This code constructs a new reflect.Value from a known small integer
// and checks if the size of the reflect.Value struct indicates it has
// the scalar field. When it does, the offsets are updated accordingly.
vv := reflect.ValueOf(0xf00)
if unsafe.Sizeof(vv) == (ptrSize * 4) {
offsetScalar = ptrSize * 2
offsetFlag = ptrSize * 3
}
// Commit 90a7c3c86944 changed the flag positions such that the low
// order bits are the kind. This code extracts the kind from the flags
// field and ensures it's the correct type. When it's not, the flag
// order has been changed to the newer format, so the flags are updated
// accordingly.
upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
upfv := *(*uintptr)(upf)
flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
flagKindShift = 0
flagRO = 1 << 5
flagIndir = 1 << 6
// Commit adf9b30e5594 modified the flags to separate the
// flagRO flag into two bits which specifies whether or not the
// field is embedded. This causes flagIndir to move over a bit
// and means that flagRO is the combination of either of the
// original flagRO bit and the new bit.
//
// This code detects the change by extracting what used to be
// the indirect bit to ensure it's set. When it's not, the flag
// order has been changed to the newer format, so the flags are
// updated accordingly.
if upfv&flagIndir == 0 {
flagRO = 3 << 5
flagIndir = 1 << 7
}
}
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
indirects := 1
vt := v.Type()
upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
if rvf&flagIndir != 0 {
vt = reflect.PtrTo(v.Type())
indirects++
} else if offsetScalar != 0 {
// The value is in the scalar field when it's not one of the
// reference types.
switch vt.Kind() {
case reflect.Uintptr:
case reflect.Chan:
case reflect.Func:
case reflect.Map:
case reflect.Ptr:
case reflect.UnsafePointer:
default:
upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
offsetScalar)
}
}
pv := reflect.NewAt(vt, upv)
rv = pv
for i := 0; i < indirects; i++ {
rv = rv.Elem()
}
return rv
}

37
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored Normal file
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// Copyright (c) 2015 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when either the code is running on Google App Engine or "-tags disableunsafe"
// is added to the go build command line.
// +build appengine disableunsafe
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

341
vendor/github.com/davecgh/go-spew/spew/common.go generated vendored Normal file
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@ -0,0 +1,341 @@
/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "disableunsafe" build tag specified.
DisablePointerMethods bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound == true:
d.w.Write(nilAngleBytes)
case cycleFound == true:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound == true:
f.fs.Write(nilAngleBytes)
case cycleFound == true:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

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image: dmp42/go:stable
script:
# To be spoofed back into the test image
- go get github.com/modocache/gover
- go get -t ./...
# Go fmt
- test -z "$(gofmt -s -l -w . | tee /dev/stderr)"
# Go lint
- test -z "$(golint ./... | tee /dev/stderr)"
# Go vet
- go vet ./...
# Go test
- go test -v -race -cover ./...
# Helper to concatenate reports
- gover
# Send to coverall
- goveralls -service drone.io -coverprofile=gover.coverprofile -repotoken {{COVERALLS_TOKEN}}
# Do we want these as well?
# - go get code.google.com/p/go.tools/cmd/goimports
# - test -z "$(goimports -l -w ./... | tee /dev/stderr)"
# http://labix.org/gocheck
notify:
email:
recipients:
- distribution@docker.com
slack:
team: docker
channel: "#dt"
username: mom
token: {{SLACK_TOKEN}}
on_success: true
on_failure: true

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof
# never checkin from the bin file (for now)
bin/*
# Test key files
*.pem
# Cover profiles
*.out
# Editor/IDE specific files.
*.sublime-project
*.sublime-workspace

7
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Stephen J Day <stephen.day@docker.com> Stephen Day <stevvooe@users.noreply.github.com>
Stephen J Day <stephen.day@docker.com> Stephen Day <stevvooe@gmail.com>
Olivier Gambier <olivier@docker.com> Olivier Gambier <dmp42@users.noreply.github.com>
Brian Bland <brian.bland@docker.com> Brian Bland <r4nd0m1n4t0r@gmail.com>
Josh Hawn <josh.hawn@docker.com> Josh Hawn <jlhawn@berkeley.edu>
Richard Scothern <richard.scothern@docker.com> Richard <richard.scothern@gmail.com>
Richard Scothern <richard.scothern@docker.com> Richard Scothern <richard.scothern@gmail.com>

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Aaron Lehmann <aaron.lehmann@docker.com>
Adam Enger <adamenger@gmail.com>
Adrian Mouat <adrian.mouat@gmail.com>
Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
Alex Chan <alex.chan@metaswitch.com>
Alex Elman <aelman@indeed.com>
Amy Lindburg <amy.lindburg@docker.com>
Andrey Kostov <kostov.andrey@gmail.com>
Andy Goldstein <agoldste@redhat.com>
Anton Tiurin <noxiouz@yandex.ru>
Antonio Mercado <amercado@thinknode.com>
Arnaud Porterie <arnaud.porterie@docker.com>
Ayose Cazorla <ayosec@gmail.com>
BadZen <dave.trombley@gmail.com>
Ben Firshman <ben@firshman.co.uk>
bin liu <liubin0329@gmail.com>
Brian Bland <brian.bland@docker.com>
burnettk <burnettk@gmail.com>
Chris Dillon <squarism@gmail.com>
Daisuke Fujita <dtanshi45@gmail.com>
Darren Shepherd <darren@rancher.com>
Dave Trombley <dave.trombley@gmail.com>
Dave Tucker <dt@docker.com>
David Lawrence <david.lawrence@docker.com>
David Verhasselt <david@crowdway.com>
David Xia <dxia@spotify.com>
davidli <wenquan.li@hp.com>
Derek McGowan <derek@mcgstyle.net>
Diogo Mónica <diogo.monica@gmail.com>
Donald Huang <don.hcd@gmail.com>
Doug Davis <dug@us.ibm.com>
Florentin Raud <florentin.raud@gmail.com>
Frederick F. Kautz IV <fkautz@alumni.cmu.edu>
Henri Gomez <henri.gomez@gmail.com>
Hu Keping <hukeping@huawei.com>
Ian Babrou <ibobrik@gmail.com>
Jeff Nickoloff <jeff@allingeek.com>
Jessie Frazelle <jfrazelle@users.noreply.github.com>
Jianqing Wang <tsing@jianqing.org>
Jon Poler <jonathan.poler@apcera.com>
Jordan Liggitt <jliggitt@redhat.com>
Josh Hawn <josh.hawn@docker.com>
Julien Fernandez <julien.fernandez@gmail.com>
Kelsey Hightower <kelsey.hightower@gmail.com>
Kenneth Lim <kennethlimcp@gmail.com>
Li Yi <denverdino@gmail.com>
Luke Carpenter <x@rubynerd.net>
Mary Anthony <mary@docker.com>
Matt Bentley <mbentley@mbentley.net>
Matt Robenolt <matt@ydekproductions.com>
Michael Prokop <mika@grml.org>
moxiegirl <mary@docker.com>
Nathan Sullivan <nathan@nightsys.net>
nevermosby <robolwq@qq.com>
Nghia Tran <tcnghia@gmail.com>
Oilbeater <liumengxinfly@gmail.com>
Olivier Gambier <olivier@docker.com>
Olivier Jacques <olivier.jacques@hp.com>
Patrick Devine <patrick.devine@docker.com>
Philip Misiowiec <philip@atlashealth.com>
Richard Scothern <richard.scothern@docker.com>
Sebastiaan van Stijn <github@gone.nl>
Shawn Falkner-Horine <dreadpirateshawn@gmail.com>
Shreyas Karnik <karnik.shreyas@gmail.com>
Simon Thulbourn <simon+github@thulbourn.com>
Spencer Rinehart <anubis@overthemonkey.com>
Stephen J Day <stephen.day@docker.com>
Sylvain Baubeau <sbaubeau@redhat.com>
tgic <farmer1992@gmail.com>
Thomas Sjögren <konstruktoid@users.noreply.github.com>
Tianon Gravi <admwiggin@gmail.com>
Tibor Vass <teabee89@gmail.com>
Vincent Batts <vbatts@redhat.com>
Vincent Demeester <vincent@sbr.pm>
Vincent Giersch <vincent.giersch@ovh.net>
W. Trevor King <wking@tremily.us>
xiekeyang <xiekeyang@huawei.com>
Yann ROBERT <yann.robert@anantaplex.fr>
yuzou <zouyu7@huawei.com>

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# Contributing to the registry
## Before reporting an issue...
### If your problem is with...
- automated builds
- your account on the [Docker Hub](https://hub.docker.com/)
- any other [Docker Hub](https://hub.docker.com/) issue
Then please do not report your issue here - you should instead report it to [https://support.docker.com](https://support.docker.com)
### If you...
- need help setting up your registry
- can't figure out something
- are not sure what's going on or what your problem is
Then please do not open an issue here yet - you should first try one of the following support forums:
- irc: #docker-distribution on freenode
- mailing-list: <distribution@dockerproject.org> or https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution
## Reporting an issue properly
By following these simple rules you will get better and faster feedback on your issue.
- search the bugtracker for an already reported issue
### If you found an issue that describes your problem:
- please read other user comments first, and confirm this is the same issue: a given error condition might be indicative of different problems - you may also find a workaround in the comments
- please refrain from adding "same thing here" or "+1" comments
- you don't need to comment on an issue to get notified of updates: just hit the "subscribe" button
- comment if you have some new, technical and relevant information to add to the case
- __DO NOT__ comment on closed issues or merged PRs. If you think you have a related problem, open up a new issue and reference the PR or issue.
### If you have not found an existing issue that describes your problem:
1. create a new issue, with a succinct title that describes your issue:
- bad title: "It doesn't work with my docker"
- good title: "Private registry push fail: 400 error with E_INVALID_DIGEST"
2. copy the output of:
- `docker version`
- `docker info`
- `docker exec <registry-container> registry -version`
3. copy the command line you used to launch your Registry
4. restart your docker daemon in debug mode (add `-D` to the daemon launch arguments)
5. reproduce your problem and get your docker daemon logs showing the error
6. if relevant, copy your registry logs that show the error
7. provide any relevant detail about your specific Registry configuration (e.g., storage backend used)
8. indicate if you are using an enterprise proxy, Nginx, or anything else between you and your Registry
## Contributing a patch for a known bug, or a small correction
You should follow the basic GitHub workflow:
1. fork
2. commit a change
3. make sure the tests pass
4. PR
Additionally, you must [sign your commits](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#sign-your-work). It's very simple:
- configure your name with git: `git config user.name "Real Name" && git config user.email mail@example.com`
- sign your commits using `-s`: `git commit -s -m "My commit"`
Some simple rules to ensure quick merge:
- clearly point to the issue(s) you want to fix in your PR comment (e.g., `closes #12345`)
- prefer multiple (smaller) PRs addressing individual issues over a big one trying to address multiple issues at once
- if you need to amend your PR following comments, please squash instead of adding more commits
## Contributing new features
You are heavily encouraged to first discuss what you want to do. You can do so on the irc channel, or by opening an issue that clearly describes the use case you want to fulfill, or the problem you are trying to solve.
If this is a major new feature, you should then submit a proposal that describes your technical solution and reasoning.
If you did discuss it first, this will likely be greenlighted very fast. It's advisable to address all feedback on this proposal before starting actual work.
Then you should submit your implementation, clearly linking to the issue (and possible proposal).
Your PR will be reviewed by the community, then ultimately by the project maintainers, before being merged.
It's mandatory to:
- interact respectfully with other community members and maintainers - more generally, you are expected to abide by the [Docker community rules](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#docker-community-guidelines)
- address maintainers' comments and modify your submission accordingly
- write tests for any new code
Complying to these simple rules will greatly accelerate the review process, and will ensure you have a pleasant experience in contributing code to the Registry.
Have a look at a great, succesful contribution: the [Ceph driver PR](https://github.com/docker/distribution/pull/443)
## Coding Style
Unless explicitly stated, we follow all coding guidelines from the Go
community. While some of these standards may seem arbitrary, they somehow seem
to result in a solid, consistent codebase.
It is possible that the code base does not currently comply with these
guidelines. We are not looking for a massive PR that fixes this, since that
goes against the spirit of the guidelines. All new contributions should make a
best effort to clean up and make the code base better than they left it.
Obviously, apply your best judgement. Remember, the goal here is to make the
code base easier for humans to navigate and understand. Always keep that in
mind when nudging others to comply.
The rules:
1. All code should be formatted with `gofmt -s`.
2. All code should pass the default levels of
[`golint`](https://github.com/golang/lint).
3. All code should follow the guidelines covered in [Effective
Go](http://golang.org/doc/effective_go.html) and [Go Code Review
Comments](https://github.com/golang/go/wiki/CodeReviewComments).
4. Comment the code. Tell us the why, the history and the context.
5. Document _all_ declarations and methods, even private ones. Declare
expectations, caveats and anything else that may be important. If a type
gets exported, having the comments already there will ensure it's ready.
6. Variable name length should be proportional to its context and no longer.
`noCommaALongVariableNameLikeThisIsNotMoreClearWhenASimpleCommentWouldDo`.
In practice, short methods will have short variable names and globals will
have longer names.
7. No underscores in package names. If you need a compound name, step back,
and re-examine why you need a compound name. If you still think you need a
compound name, lose the underscore.
8. No utils or helpers packages. If a function is not general enough to
warrant its own package, it has not been written generally enough to be a
part of a util package. Just leave it unexported and well-documented.
9. All tests should run with `go test` and outside tooling should not be
required. No, we don't need another unit testing framework. Assertion
packages are acceptable if they provide _real_ incremental value.
10. Even though we call these "rules" above, they are actually just
guidelines. Since you've read all the rules, you now know that.
If you are having trouble getting into the mood of idiomatic Go, we recommend
reading through [Effective Go](http://golang.org/doc/effective_go.html). The
[Go Blog](http://blog.golang.org/) is also a great resource. Drinking the
kool-aid is a lot easier than going thirsty.

19
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FROM golang:1.4
RUN apt-get update && \
apt-get install -y librados-dev apache2-utils && \
rm -rf /var/lib/apt/lists/*
ENV DISTRIBUTION_DIR /go/src/github.com/docker/distribution
ENV GOPATH $DISTRIBUTION_DIR/Godeps/_workspace:$GOPATH
ENV DOCKER_BUILDTAGS include_rados include_oss include_gcs
WORKDIR $DISTRIBUTION_DIR
COPY . $DISTRIBUTION_DIR
COPY cmd/registry/config-dev.yml /etc/docker/registry/config.yml
RUN make PREFIX=/go clean binaries
VOLUME ["/var/lib/registry"]
EXPOSE 5000
ENTRYPOINT ["registry"]
CMD ["/etc/docker/registry/config.yml"]

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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replaced with your own identifying information. (Don't include
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4
vendor/github.com/docker/distribution/MAINTAINERS generated vendored Normal file
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@ -0,0 +1,4 @@
Solomon Hykes <solomon@docker.com> (@shykes)
Olivier Gambier <olivier@docker.com> (@dmp42)
Sam Alba <sam@docker.com> (@samalba)
Stephen Day <stephen.day@docker.com> (@stevvooe)

74
vendor/github.com/docker/distribution/Makefile generated vendored Normal file
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@ -0,0 +1,74 @@
# Set an output prefix, which is the local directory if not specified
PREFIX?=$(shell pwd)
# Used to populate version variable in main package.
VERSION=$(shell git describe --match 'v[0-9]*' --dirty='.m' --always)
# Allow turning off function inlining and variable registerization
ifeq (${DISABLE_OPTIMIZATION},true)
GO_GCFLAGS=-gcflags "-N -l"
VERSION:="$(VERSION)-noopt"
endif
GO_LDFLAGS=-ldflags "-X `go list ./version`.Version $(VERSION)"
.PHONY: clean all fmt vet lint build test binaries
.DEFAULT: default
all: AUTHORS clean fmt vet fmt lint build test binaries
AUTHORS: .mailmap .git/HEAD
git log --format='%aN <%aE>' | sort -fu > $@
# This only needs to be generated by hand when cutting full releases.
version/version.go:
./version/version.sh > $@
${PREFIX}/bin/registry: version/version.go $(shell find . -type f -name '*.go')
@echo "+ $@"
@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS} ${GO_GCFLAGS} ./cmd/registry
${PREFIX}/bin/digest: version/version.go $(shell find . -type f -name '*.go')
@echo "+ $@"
@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS} ${GO_GCFLAGS} ./cmd/digest
${PREFIX}/bin/registry-api-descriptor-template: version/version.go $(shell find . -type f -name '*.go')
@echo "+ $@"
@go build -o $@ ${GO_LDFLAGS} ${GO_GCFLAGS} ./cmd/registry-api-descriptor-template
docs/spec/api.md: docs/spec/api.md.tmpl ${PREFIX}/bin/registry-api-descriptor-template
./bin/registry-api-descriptor-template $< > $@
# Depends on binaries because vet will silently fail if it can't load compiled
# imports
vet: binaries
@echo "+ $@"
@go vet ./...
fmt:
@echo "+ $@"
@test -z "$$(gofmt -s -l . | grep -v Godeps/_workspace/src/ | tee /dev/stderr)" || \
echo "+ please format Go code with 'gofmt -s'"
lint:
@echo "+ $@"
@test -z "$$(golint ./... | grep -v Godeps/_workspace/src/ | tee /dev/stderr)"
build:
@echo "+ $@"
@go build -tags "${DOCKER_BUILDTAGS}" -v ${GO_LDFLAGS} ./...
test:
@echo "+ $@"
@go test -test.short -tags "${DOCKER_BUILDTAGS}" ./...
test-full:
@echo "+ $@"
@go test ./...
binaries: ${PREFIX}/bin/registry ${PREFIX}/bin/digest ${PREFIX}/bin/registry-api-descriptor-template
@echo "+ $@"
clean:
@echo "+ $@"
@rm -rf "${PREFIX}/bin/registry" "${PREFIX}/bin/registry-api-descriptor-template"

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