61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "tools/gn/token.h"
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#include "base/logging.h"
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namespace {
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std::string UnescapeString(const base::StringPiece& input) {
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std::string result;
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result.reserve(input.size());
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for (size_t i = 0; i < input.size(); i++) {
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if (input[i] == '\\') {
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DCHECK(i < input.size() - 1); // Last char shouldn't be a backslash or
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// it would have escaped the terminator.
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i++; // Skip backslash, next char is a literal.
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}
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result.push_back(input[i]);
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}
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return result;
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}
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} // namespace
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Token::Token() : type_(INVALID), value_() {
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}
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Token::Token(const Location& location,
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Type t,
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const base::StringPiece& v)
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: type_(t),
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value_(v),
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location_(location) {
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}
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bool Token::IsIdentifierEqualTo(const char* v) const {
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return type_ == IDENTIFIER && value_ == v;
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}
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bool Token::IsOperatorEqualTo(const char* v) const {
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return type_ == OPERATOR && value_ == v;
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}
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bool Token::IsScoperEqualTo(const char* v) const {
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return type_ == SCOPER && value_ == v;
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}
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bool Token::IsStringEqualTo(const char* v) const {
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return type_ == STRING && value_ == v;
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}
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std::string Token::StringValue() const {
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DCHECK(type() == STRING);
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// Trim off the string terminators at the end.
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return UnescapeString(value_.substr(1, value_.size() - 2));
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}
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