| // Copyright 2012 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 "ui/gfx/text_utils.h" |
| |
| #include "base/i18n/char_iterator.h" |
| |
| namespace gfx { |
| |
| base::string16 RemoveAcceleratorChar(const base::string16& s, |
| base::char16 accelerator_char, |
| int* accelerated_char_pos, |
| int* accelerated_char_span) { |
| bool escaped = false; |
| ptrdiff_t last_char_pos = -1; |
| int last_char_span = 0; |
| base::i18n::UTF16CharIterator chars(&s); |
| base::string16 accelerator_removed; |
| |
| accelerator_removed.reserve(s.size()); |
| while (!chars.end()) { |
| int32 c = chars.get(); |
| int array_pos = chars.array_pos(); |
| chars.Advance(); |
| |
| if (c != accelerator_char || escaped) { |
| int span = chars.array_pos() - array_pos; |
| if (escaped && c != accelerator_char) { |
| last_char_pos = accelerator_removed.size(); |
| last_char_span = span; |
| } |
| for (int i = 0; i < span; i++) |
| accelerator_removed.push_back(s[array_pos + i]); |
| escaped = false; |
| } else { |
| escaped = true; |
| } |
| } |
| |
| if (accelerated_char_pos) |
| *accelerated_char_pos = last_char_pos; |
| if (accelerated_char_span) |
| *accelerated_char_span = last_char_span; |
| |
| return accelerator_removed; |
| } |
| |
| } // namespace gfx |