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gtk_util.cc

// Copyright (c) 2010 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 "base/gtk_util.h"

namespace gtk_util {

namespace {

// Common implementation of ConvertAcceleratorsFromWindowsStyle() and
// RemoveWindowsStyleAccelerators().
// Replaces all ampersands (as used in our grd files to indicate mnemonics)
// to |target|. Similarly any underscores get replaced with two underscores as
// is needed by pango.
std::string ConvertAmperstandsTo(const std::string& label,
                                 const std::string& target) {
  std::string ret;
  ret.reserve(label.length() * 2);
  for (size_t i = 0; i < label.length(); ++i) {
    if ('_' == label[i]) {
      ret.push_back('_');
      ret.push_back('_');
    } else if ('&' == label[i]) {
      if (i + 1 < label.length() && '&' == label[i + 1]) {
        ret.push_back('&');
        ++i;
      } else {
        ret.append(target);
      }
    } else {
      ret.push_back(label[i]);
    }
  }

  return ret;
}

}  // namespace

std::string ConvertAcceleratorsFromWindowsStyle(const std::string& label) {
  return ConvertAmperstandsTo(label, "_");
}

std::string RemoveWindowsStyleAccelerators(const std::string& label) {
  return ConvertAmperstandsTo(label, "");
}

}  // namespace gtk_util

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