| # Copyright 2018 The LUCI 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. |
| |
| """API for checking regular expressions.""" |
| |
| def _submatches(pattern, str): |
| """Returns a tuple of submatches of the regular expression. |
| |
| The returned tuple has the full match as a first item, followed by |
| subexpression matches. |
| |
| If the string doesn't match the expression returns an empty tuple. Fails if |
| the regular expression can't be compiled. |
| """ |
| return __native__.re_submatches(pattern, str) |
| |
| # Public API of this module. |
| re = struct( |
| submatches = _submatches, |
| ) |
