| // Copyright 2017-2020 The Verible Authors. |
| // |
| // 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 "common/strings/position.h" |
| |
| #include "absl/strings/string_view.h" |
| |
| namespace verible { |
| |
| int AdvancingTextNewColumnPosition(int old_column_position, |
| absl::string_view advancing_text) { |
| const auto last_newline = advancing_text.find_last_of('\n'); |
| if (last_newline == absl::string_view::npos) { |
| // No newlines, so treat every character as one column position, |
| // even tabs. |
| return old_column_position + advancing_text.length(); |
| } |
| // Count characters after the last newline. |
| return advancing_text.length() - last_newline - 1; |
| } |
| |
| } // namespace verible |
