Revert 214254 "Add initial prototype for the GN meta-buildsystem."

trunk/src/tools/gn/escape.cc

-// Copyright (c) 2013 The Chromium 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 "tools/gn/escape.h"
-
-#include "base/containers/stack_container.h"
-
-namespace {
-
-template<typename DestString>
-void EscapeStringToString(const base::StringPiece& str,
-                          const EscapeOptions& options,
-                          DestString* dest) {
-  bool used_quotes = false;
-
-  for (size_t i = 0; i < str.size(); i++) {
-    if (str[i] == '$' && options.mode == ESCAPE_NINJA) {
-      // Escape dollars signs since ninja treats these specially.
-      dest->push_back('$');
-      dest->push_back('$');
-    } else if (str[i] == '"' && options.mode == ESCAPE_SHELL) {
-      // Escape quotes with backslashes for the command-line (Ninja doesn't
-      // care).
-      dest->push_back('\\');
-      dest->push_back('"');
-    } else if (str[i] == ' ') {
-      if (options.mode == ESCAPE_NINJA) {
-        // For ninja just escape spaces with $.
-        dest->push_back('$');
-      } else if (options.mode == ESCAPE_SHELL && !options.inhibit_quoting) {
-        // For the shell, quote the whole string.
-        if (!used_quotes) {
-          used_quotes = true;
-          dest->insert(dest->begin(), '"');
-        }
-      }
-      dest->push_back(' ');
-#if defined(OS_WIN)
-    } else if (str[i] == '/' && options.convert_slashes) {
-      // Convert slashes on Windows if requested.
-      dest->push_back('\\');
-#else
-    } else if (str[i] == '\\' && options.mode == ESCAPE_SHELL) {
-      // For non-Windows shell, escape backslashes.
-      dest->push_back('\\');
-      dest->push_back('\\');
-#endif
-    } else {
-      dest->push_back(str[i]);
-    }
-  }
-
-  if (used_quotes)
-    dest->push_back('"');
-}
-
-}  // namespace
-
-std::string EscapeString(const base::StringPiece& str,
-                         const EscapeOptions& options) {
-  std::string result;
-  result.reserve(str.size() + 4);  // Guess we'll add a couple of extra chars.
-  EscapeStringToString(str, options, &result);
-  return result;
-}
-
-void EscapeStringToStream(std::ostream& out,
-                          const base::StringPiece& str,
-                          const EscapeOptions& options) {
-  // Escape to a stack buffer and then write out to the stream.
-  base::StackVector<char, 256> result;
-  result->reserve(str.size() + 4);  // Guess we'll add a couple of extra chars.
-  EscapeStringToString(str, options, &result.container());
-  if (!result->empty())
-    out.write(result->data(), result->size());
-}