forked from cerc-io/plugeth
289b30715d
This commit converts the dependency management from Godeps to the vendor folder, also switching the tool from godep to trash. Since the upstream tool lacks a few features proposed via a few PRs, until those PRs are merged in (if), use github.com/karalabe/trash. You can update dependencies via trash --update. All dependencies have been updated to their latest version. Parts of the build system are reworked to drop old notions of Godeps and invocation of the go vet command so that it doesn't run against the vendor folder, as that will just blow up during vetting. The conversion drops OpenCL (and hence GPU mining support) from ethash and our codebase. The short reasoning is that there's noone to maintain and having opencl libs in our deps messes up builds as go install ./... tries to build them, failing with unsatisfied link errors for the C OpenCL deps. golang.org/x/net/context is not vendored in. We expect it to be fetched by the user (i.e. using go get). To keep ci.go builds reproducible the package is "vendored" in build/_vendor.
87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:generate go run gen.go
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// Package htmlindex maps character set encoding names to Encodings as
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// recommended by the W3C for use in HTML 5. See http://www.w3.org/TR/encoding.
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package htmlindex
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// TODO: perhaps have a "bare" version of the index (used by this package) that
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// is not pre-loaded with all encodings. Global variables in encodings prevent
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// the linker from being able to purge unneeded tables. This means that
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// referencing all encodings, as this package does for the default index, links
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// in all encodings unconditionally.
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//
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// This issue can be solved by either solving the linking issue (see
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// https://github.com/golang/go/issues/6330) or refactoring the encoding tables
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// (e.g. moving the tables to internal packages that do not use global
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// variables).
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// TODO: allow canonicalizing names
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import (
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"errors"
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"strings"
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"sync"
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"golang.org/x/text/encoding"
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"golang.org/x/text/encoding/internal/identifier"
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"golang.org/x/text/language"
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)
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var (
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errInvalidName = errors.New("htmlindex: invalid encoding name")
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errUnknown = errors.New("htmlindex: unknown Encoding")
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errUnsupported = errors.New("htmlindex: this encoding is not supported")
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)
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var (
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matcherOnce sync.Once
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matcher language.Matcher
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)
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// LanguageDefault returns the canonical name of the default encoding for a
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// given language.
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func LanguageDefault(tag language.Tag) string {
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matcherOnce.Do(func() {
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tags := []language.Tag{}
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for _, t := range strings.Split(locales, " ") {
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tags = append(tags, language.MustParse(t))
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}
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matcher = language.NewMatcher(tags)
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})
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_, i, _ := matcher.Match(tag)
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return canonical[localeMap[i]] // Default is Windows-1252.
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}
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// Get returns an Encoding for one of the names listed in
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// http://www.w3.org/TR/encoding using the Default Index. Matching is case-
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// insensitive.
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func Get(name string) (encoding.Encoding, error) {
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x, ok := nameMap[strings.ToLower(strings.TrimSpace(name))]
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if !ok {
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return nil, errInvalidName
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}
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return encodings[x], nil
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}
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// Name reports the canonical name of the given Encoding. It will return
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// an error if e is not associated with a supported encoding scheme.
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func Name(e encoding.Encoding) (string, error) {
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id, ok := e.(identifier.Interface)
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if !ok {
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return "", errUnknown
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}
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mib, _ := id.ID()
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if mib == 0 {
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return "", errUnknown
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}
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v, ok := mibMap[mib]
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if !ok {
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return "", errUnsupported
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}
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return canonical[v], nil
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}
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