| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <string> |
| |
| #include "base/containers/fixed_flat_set.h" |
| #include "ui/gfx/range/range.h" |
| |
| namespace ash::input_method { |
| |
| constexpr auto striped_symbols = |
| base::MakeFixedFlatSet<char>({' ', '\t', '\n', '.', ','}); |
| |
| size_t NonWhitespaceAndSymbolsLength(const std::u16string& text, |
| gfx::Range selection_range) { |
| size_t start = selection_range.start(); |
| size_t end = selection_range.end(); |
| if (start >= end || end > text.length()) { |
| return 0; |
| } |
| |
| while (start < end && (striped_symbols.contains(text[start]) || |
| striped_symbols.contains(text[end - 1]))) { |
| if (striped_symbols.contains(text[start])) { |
| start++; |
| } else { |
| end--; |
| } |
| } |
| |
| return end - start; |
| } |
| |
| } // namespace ash::input_method |
