1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/base/accelerators/menu_label_accelerator_util_linux.h" 6 7 #include "base/strings/string_util.h" 8 9 namespace { 10 11 // Common implementation of ConvertAcceleratorsFromWindowsStyle() and 12 // RemoveWindowsStyleAccelerators(). 13 // Replaces all ampersands (as used in our grd files to indicate mnemonics) 14 // to |target|, except ampersands appearing in pairs which are replaced by 15 // a single ampersand. Any underscores get replaced with two underscores as 16 // is needed by GTK. 17 std::string ConvertAmpersandsTo(const std::string& label, 18 const std::string& target) { 19 std::string ret; 20 ret.reserve(label.length() * 2); 21 for (size_t i = 0; i < label.length(); ++i) { 22 if ('_' == label[i]) { 23 ret.push_back('_'); 24 ret.push_back('_'); 25 } else if ('&' == label[i]) { 26 if (i + 1 < label.length() && '&' == label[i + 1]) { 27 ret.push_back('&'); 28 ++i; 29 } else { 30 ret.append(target); 31 } 32 } else { 33 ret.push_back(label[i]); 34 } 35 } 36 37 return ret; 38 } 39 40 } // namespace 41 42 namespace ui { 43 44 std::string ConvertAcceleratorsFromWindowsStyle(const std::string& label) { 45 return ConvertAmpersandsTo(label, "_"); 46 } 47 48 std::string RemoveWindowsStyleAccelerators(const std::string& label) { 49 return ConvertAmpersandsTo(label, std::string()); 50 } 51 52 // Replaces all ampersands in |label| with two ampersands. This effectively 53 // escapes strings for later processing by ConvertAmpersandsTo(), so that 54 // ConvertAmpersandsTo(EscapeWindowsStyleAccelerators(x), *) is |x| with 55 // underscores doubled, making the string that appears to the user just |x|. 56 std::string EscapeWindowsStyleAccelerators(const std::string& label) { 57 std::string ret; 58 base::ReplaceChars(label, "&", "&&", &ret); 59 return ret; 60 } 61 62 } // namespace ui 63
