1 // Copyright 2012 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/gfx/text_utils.h" 6 7 #include "base/i18n/char_iterator.h" 8 9 namespace gfx { 10 11 base::string16 RemoveAcceleratorChar(const base::string16& s, 12 base::char16 accelerator_char, 13 int* accelerated_char_pos, 14 int* accelerated_char_span) { 15 bool escaped = false; 16 ptrdiff_t last_char_pos = -1; 17 int last_char_span = 0; 18 base::i18n::UTF16CharIterator chars(&s); 19 base::string16 accelerator_removed; 20 21 accelerator_removed.reserve(s.size()); 22 while (!chars.end()) { 23 int32 c = chars.get(); 24 int array_pos = chars.array_pos(); 25 chars.Advance(); 26 27 if (c != accelerator_char || escaped) { 28 int span = chars.array_pos() - array_pos; 29 if (escaped && c != accelerator_char) { 30 last_char_pos = accelerator_removed.size(); 31 last_char_span = span; 32 } 33 for (int i = 0; i < span; i++) 34 accelerator_removed.push_back(s[array_pos + i]); 35 escaped = false; 36 } else { 37 escaped = true; 38 } 39 } 40 41 if (accelerated_char_pos) 42 *accelerated_char_pos = last_char_pos; 43 if (accelerated_char_span) 44 *accelerated_char_span = last_char_span; 45 46 return accelerator_removed; 47 } 48 49 } // namespace gfx 50
