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| 1 # Copyright 2013 the V8 project authors. All rights reserved. | 1 # Copyright 2013 the V8 project authors. All rights reserved. |
| 2 # Redistribution and use in source and binary forms, with or without | 2 # Redistribution and use in source and binary forms, with or without |
| 3 # modification, are permitted provided that the following conditions are | 3 # modification, are permitted provided that the following conditions are |
| 4 # met: | 4 # met: |
| 5 # | 5 # |
| 6 # * Redistributions of source code must retain the above copyright | 6 # * Redistributions of source code must retain the above copyright |
| 7 # notice, this list of conditions and the following disclaimer. | 7 # notice, this list of conditions and the following disclaimer. |
| 8 # * Redistributions in binary form must reproduce the above | 8 # * Redistributions in binary form must reproduce the above |
| 9 # copyright notice, this list of conditions and the following | 9 # copyright notice, this list of conditions and the following |
| 10 # disclaimer in the documentation and/or other materials provided | 10 # disclaimer in the documentation and/or other materials provided |
| 11 # with the distribution. | 11 # with the distribution. |
| 12 # * Neither the name of Google Inc. nor the names of its | 12 # * Neither the name of Google Inc. nor the names of its |
| 13 # contributors may be used to endorse or promote products derived | 13 # contributors may be used to endorse or promote products derived |
| 14 # from this software without specific prior written permission. | 14 # from this software without specific prior written permission. |
| 15 # | 15 # |
| 16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 # Watchlist Rules | 28 import ply.lex as lex |
| 29 # Refer: http://dev.chromium.org/developers/contributing-code/watchlists | |
| 30 | 29 |
| 31 # IMPORTANT: The regular expression filepath is tested against each path using | 30 class RuleLexer: |
| 32 # re.search, so it is not usually necessary to add .*. | |
| 33 | 31 |
| 34 { | 32 tokens = ( |
| 35 'WATCHLIST_DEFINITIONS': { | 33 'ALIAS', |
| 36 'public_api': { | 34 'CONDITION_TRANSITION', |
| 37 'filepath': 'include/', | 35 'CONDITION' |
| 38 }, | 36 ) |
| 39 }, | |
| 40 | 37 |
| 41 'WATCHLISTS': { | 38 t_ignore = " \t\n" |
| 42 'public_api': [ | 39 |
| 43 'phajdan.jr@chromium.org', | 40 def t_ALIAS(self, t): |
| 44 ], | 41 r'\s*(?P<name>[a-zA-Z0-9_]+)\s*=\s*(?P<regex>.+)\s*;\s*' |
| 45 }, | 42 return t |
| 46 } | 43 |
| 44 def t_CONDITION_TRANSITION(self, t): |
| 45 r'\s*<(?P<old>[a-zA-Z]+)>\s*(?P<regex>.+)\s*:=>\s*(?P<new>.+)\s*' |
| 46 return t |
| 47 |
| 48 def t_CONDITION(self, t): |
| 49 r'\s*<(?P<old>[a-zA-Z]+)>\s*(?P<regex>.+)\s*{(?P<body>.+)}\s*' |
| 50 return t |
| 51 |
| 52 def t_error(self, t): |
| 53 raise Exception("Illegal character '%s'" % t.value[0]) |
| 54 |
| 55 def build(self, **kwargs): |
| 56 self.lexer = lex.lex(module=self, **kwargs) |
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Chromium Code Reviews
Issue 52593002:
Experimental lexer generator: parse rules (in the .re file format) (Closed)
Base URL: https://v8.googlecode.com/svn/branches/experimental/parser