78 lines
2.5 KiB
C++
78 lines
2.5 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/escape.h"
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#include "base/containers/stack_container.h"
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namespace {
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template<typename DestString>
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void EscapeStringToString(const base::StringPiece& str,
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const EscapeOptions& options,
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DestString* dest) {
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bool used_quotes = false;
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for (size_t i = 0; i < str.size(); i++) {
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if (str[i] == '$' && options.mode == ESCAPE_NINJA) {
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// Escape dollars signs since ninja treats these specially.
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dest->push_back('$');
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dest->push_back('$');
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} else if (str[i] == '"' && options.mode == ESCAPE_SHELL) {
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// Escape quotes with backslashes for the command-line (Ninja doesn't
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// care).
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dest->push_back('\\');
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dest->push_back('"');
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} else if (str[i] == ' ') {
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if (options.mode == ESCAPE_NINJA) {
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// For ninja just escape spaces with $.
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dest->push_back('$');
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} else if (options.mode == ESCAPE_SHELL && !options.inhibit_quoting) {
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// For the shell, quote the whole string.
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if (!used_quotes) {
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used_quotes = true;
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dest->insert(dest->begin(), '"');
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}
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}
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dest->push_back(' ');
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#if defined(OS_WIN)
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} else if (str[i] == '/' && options.convert_slashes) {
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// Convert slashes on Windows if requested.
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dest->push_back('\\');
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#else
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} else if (str[i] == '\\' && options.mode == ESCAPE_SHELL) {
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// For non-Windows shell, escape backslashes.
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dest->push_back('\\');
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dest->push_back('\\');
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#endif
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} else {
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dest->push_back(str[i]);
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}
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}
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if (used_quotes)
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dest->push_back('"');
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}
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} // namespace
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std::string EscapeString(const base::StringPiece& str,
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const EscapeOptions& options) {
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std::string result;
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result.reserve(str.size() + 4); // Guess we'll add a couple of extra chars.
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EscapeStringToString(str, options, &result);
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return result;
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}
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void EscapeStringToStream(std::ostream& out,
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const base::StringPiece& str,
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const EscapeOptions& options) {
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// Escape to a stack buffer and then write out to the stream.
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base::StackVector<char, 256> result;
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result->reserve(str.size() + 4); // Guess we'll add a couple of extra chars.
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EscapeStringToString(str, options, &result.container());
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if (!result->empty())
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out.write(result->data(), result->size());
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}
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