mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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namespace langutil
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{
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inline bool isDecimalDigit(char c)
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{
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return '0' <= c && c <= '9';
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}
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inline bool isHexDigit(char c)
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{
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return
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isDecimalDigit(c) ||
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('a' <= c && c <= 'f') ||
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('A' <= c && c <= 'F');
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}
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inline bool isLineTerminator(char c)
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{
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return c == '\n';
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}
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inline bool isWhiteSpace(char c)
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{
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return c == ' ' || c == '\n' || c == '\t' || c == '\r';
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}
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inline bool isIdentifierStart(char c)
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{
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return c == '_' || c == '$' || ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
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}
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inline bool isIdentifierPart(char c)
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{
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return isIdentifierStart(c) || isDecimalDigit(c);
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}
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inline int hexValue(char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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else if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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else if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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else return -1;
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}
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}
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