| // |
| // Copyright (c) 2011 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| #include "Token.h" |
| |
| #include <cassert> |
| #include <sstream> |
| |
| template<typename IntType> |
| static bool atoi_t(const std::string& str, IntType* value) |
| { |
| std::ios::fmtflags base = std::ios::dec; |
| if ((str.size() >= 2) && (str[0] == '0') && (tolower(str[1]) == 'x')) |
| { |
| base = std::ios::hex; |
| } |
| else if ((str.size() >= 1) && (str[0] == '0')) |
| { |
| base = std::ios::oct; |
| } |
| |
| std::istringstream stream(str); |
| stream.setf(base, std::ios::basefield); |
| stream >> (*value); |
| return !stream.fail(); |
| } |
| |
| namespace pp |
| { |
| |
| void Token::reset() |
| { |
| type = 0; |
| flags = 0; |
| location = SourceLocation(); |
| text.clear(); |
| } |
| |
| bool Token::equals(const Token& other) const |
| { |
| return (type == other.type) && |
| (flags == other.flags) && |
| (location == other.location) && |
| (text == other.text); |
| } |
| |
| void Token::setAtStartOfLine(bool start) |
| { |
| if (start) |
| flags |= AT_START_OF_LINE; |
| else |
| flags &= ~AT_START_OF_LINE; |
| } |
| |
| void Token::setHasLeadingSpace(bool space) |
| { |
| if (space) |
| flags |= HAS_LEADING_SPACE; |
| else |
| flags &= ~HAS_LEADING_SPACE; |
| } |
| |
| void Token::setExpansionDisabled(bool disable) |
| { |
| if (disable) |
| flags |= EXPANSION_DISABLED; |
| else |
| flags &= ~EXPANSION_DISABLED; |
| } |
| |
| bool Token::iValue(int* value) const |
| { |
| assert(type == CONST_INT); |
| return atoi_t(text, value); |
| } |
| |
| bool Token::uValue(unsigned int* value) const |
| { |
| assert(type == CONST_INT); |
| return atoi_t(text, value); |
| } |
| |
| bool Token::fValue(float* value) const |
| { |
| assert(type == CONST_FLOAT); |
| |
| std::istringstream stream(text); |
| stream.imbue(std::locale("C")); |
| stream >> (*value); |
| return !stream.fail(); |
| } |
| |
| std::ostream& operator<<(std::ostream& out, const Token& token) |
| { |
| if (token.hasLeadingSpace()) |
| out << " "; |
| |
| out << token.text; |
| return out; |
| } |
| |
| } // namespace pp |