| # Copyright (C) 2011 Google Inc. All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| class WatchListRule: |
| '''A rule with instructions to do when the rule is satisified.''' |
| def __init__(self, complex_definition, instructions): |
| self.definitions_to_match = complex_definition |
| self._instructions = instructions |
| |
| def _match_test_definitions(self, test, matching_definitions): |
| if test.startswith('!'): |
| return test.split('!', 1)[1] not in matching_definitions |
| return test in matching_definitions |
| |
| def match(self, matching_definitions): |
| for test_definition in self.definitions_to_match.split('|'): |
| if '&' in test_definition: |
| match_all_subgroup = True |
| for test_definition_suball in test_definition.split('&'): |
| if not self._match_test_definitions(test_definition_suball, matching_definitions): |
| match_all_subgroup = False |
| if match_all_subgroup: |
| return True |
| elif self._match_test_definitions(test_definition, matching_definitions): |
| return True |
| return False |
| |
| def instructions(self): |
| return self._instructions |
| |
| def remove_instruction(self, instruction): |
| self._instructions.remove(instruction) |
