| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <algorithm> |
| #include <string> |
| |
| #include "txt/font_asset_provider.h" |
| |
| namespace txt { |
| |
| // Return a canonicalized version of a family name that is suitable for |
| // matching. |
| std::string FontAssetProvider::CanonicalFamilyName(std::string family_name) { |
| std::string result(family_name.length(), 0); |
| |
| // Convert ASCII characters to lower case. |
| std::transform(family_name.begin(), family_name.end(), result.begin(), |
| [](char c) { return (c & 0x80) ? c : ::tolower(c); }); |
| |
| return result; |
| } |
| |
| } // namespace txt |