thirdparty/google_appengine/lib/antlr3/antlr3/main.py
author Lennard de Rijk <ljvderijk@gmail.com>
Sun, 22 Feb 2009 19:12:25 +0000
changeset 1464 a7b00937b678
parent 828 f5fd65cc3bf3
permissions -rwxr-xr-x
Fixed params used for list_action and list_description in user_self roles overview. Patch by: Lennard de Rijk Reviewed by: to-be-reviewed
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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"""ANTLR3 runtime package"""
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# begin[licence]
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#
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# [The "BSD licence"]
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# Copyright (c) 2005-2008 Terence Parr
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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#    notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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#    notice, this list of conditions and the following disclaimer in the
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#    documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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#    derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# end[licence]
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import sys
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import optparse
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import antlr3
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class _Main(object):
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    def __init__(self):
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        self.stdin = sys.stdin
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        self.stdout = sys.stdout
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        self.stderr = sys.stderr
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    def parseOptions(self, argv):
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        optParser = optparse.OptionParser()
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        optParser.add_option(
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            "--encoding",
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            action="store",
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            type="string",
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            dest="encoding"
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            )
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        optParser.add_option(
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            "--input",
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            action="store",
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            type="string",
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            dest="input"
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            )
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        optParser.add_option(
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            "--interactive", "-i",
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            action="store_true",
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            dest="interactive"
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            )
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        optParser.add_option(
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            "--no-output",
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            action="store_true",
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            dest="no_output"
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            )
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        optParser.add_option(
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            "--profile",
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            action="store_true",
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            dest="profile"
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            )
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        optParser.add_option(
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            "--hotshot",
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            action="store_true",
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            dest="hotshot"
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            )
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        self.setupOptions(optParser)
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        return optParser.parse_args(argv[1:])
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    def setupOptions(self, optParser):
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        pass
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    def execute(self, argv):
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        options, args = self.parseOptions(argv)
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        self.setUp(options)
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        if options.interactive:
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            while True:
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                try:
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                    input = raw_input(">>> ")
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                except (EOFError, KeyboardInterrupt):
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                    self.stdout.write("\nBye.\n")
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                    break
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                inStream = antlr3.ANTLRStringStream(input)
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                self.parseStream(options, inStream)
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        else:
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            if options.input is not None:
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                inStream = antlr3.ANTLRStringStream(options.input)
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            elif len(args) == 1 and args[0] != '-':
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                inStream = antlr3.ANTLRFileStream(
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                    args[0], encoding=options.encoding
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                    )
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   115
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   116
            else:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   117
                inStream = antlr3.ANTLRInputStream(
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parents:
diff changeset
   118
                    self.stdin, encoding=options.encoding
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   119
                    )
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parents:
diff changeset
   120
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   121
            if options.profile:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   122
                try:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   123
                    import cProfile as profile
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   124
                except ImportError:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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                    import profile
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parents:
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parents:
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                profile.runctx(
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parents:
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   128
                    'self.parseStream(options, inStream)',
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parents:
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                    globals(),
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parents:
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                    locals(),
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   131
                    'profile.dat'
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parents:
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   132
                    )
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parents:
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parents:
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                import pstats
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parents:
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                stats = pstats.Stats('profile.dat')
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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                stats.strip_dirs()
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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                stats.sort_stats('time')
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   138
                stats.print_stats(100)
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parents:
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parents:
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            elif options.hotshot:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   141
                import hotshot
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parents:
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parents:
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                profiler = hotshot.Profile('hotshot.dat')
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   144
                profiler.runctx(
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   145
                    'self.parseStream(options, inStream)',
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   146
                    globals(),
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   147
                    locals()
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parents:
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   148
                    )
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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   150
            else:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   151
                self.parseStream(options, inStream)
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
diff changeset
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    def setUp(self, options):
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parents:
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        pass
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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parents:
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   158
    def parseStream(self, options, inStream):
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parents:
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        raise NotImplementedError
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parents:
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parents:
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parents:
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    def write(self, options, text):
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parents:
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   163
        if not options.no_output:
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parents:
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            self.stdout.write(text)
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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    def writeln(self, options, text):
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parents:
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   168
        self.write(options, text + '\n')
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parents:
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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class LexerMain(_Main):
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parents:
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    def __init__(self, lexerClass):
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parents:
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        _Main.__init__(self)
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parents:
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parents:
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        self.lexerClass = lexerClass
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parents:
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parents:
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parents:
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    def parseStream(self, options, inStream):
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parents:
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        lexer = self.lexerClass(inStream)
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parents:
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        for token in lexer:
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parents:
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   181
            self.writeln(options, str(token))
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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class ParserMain(_Main):
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parents:
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   185
    def __init__(self, lexerClassName, parserClass):
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   186
        _Main.__init__(self)
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parents:
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parents:
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        self.lexerClassName = lexerClassName
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parents:
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   189
        self.lexerClass = None
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parents:
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   190
        self.parserClass = parserClass
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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parents:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   193
    def setupOptions(self, optParser):
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parents:
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   194
        optParser.add_option(
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   195
            "--lexer",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   196
            action="store",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   197
            type="string",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   198
            dest="lexerClass",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   199
            default=self.lexerClassName
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   200
            )
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   201
        optParser.add_option(
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   202
            "--rule",
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   203
            action="store",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   204
            type="string",
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   205
            dest="parserRule"
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   206
            )
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   207
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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   208
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   209
    def setUp(self, options):
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   210
        lexerMod = __import__(options.lexerClass)
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parents:
diff changeset
   211
        self.lexerClass = getattr(lexerMod, options.lexerClass)
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parents:
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parents:
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parents:
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   214
    def parseStream(self, options, inStream):
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parents:
diff changeset
   215
        lexer = self.lexerClass(inStream)
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff changeset
   216
        tokenStream = antlr3.CommonTokenStream(lexer)
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parents:
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   217
        parser = self.parserClass(tokenStream)
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parents:
diff changeset
   218
        result = getattr(parser, options.parserRule)()
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parents:
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   219
        if result is not None:
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parents:
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   220
            if hasattr(result, 'tree'):
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parents:
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   221
                if result.tree is not None:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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   222
                    self.writeln(options, result.tree.toStringTree())
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parents:
diff changeset
   223
            else:
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parents:
diff changeset
   224
                self.writeln(options, repr(result))
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parents:
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f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
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class WalkerMain(_Main):
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parents:
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    def __init__(self, walkerClass):
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parents:
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   229
        _Main.__init__(self)
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parents:
diff changeset
   230
f5fd65cc3bf3 Load /Users/solydzajs/Downloads/google_appengine into
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parents:
diff changeset
   231
        self.lexerClass = None
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        self.parserClass = None
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        self.walkerClass = walkerClass
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    def setupOptions(self, optParser):
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        optParser.add_option(
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            "--lexer",
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            action="store",
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            type="string",
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            dest="lexerClass",
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            default=None
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            )
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        optParser.add_option(
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            "--parser",
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            action="store",
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            type="string",
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            dest="parserClass",
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            default=None
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            )
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        optParser.add_option(
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            "--parser-rule",
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            action="store",
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            type="string",
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            dest="parserRule",
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            default=None
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            )
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        optParser.add_option(
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            "--rule",
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            action="store",
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            type="string",
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            dest="walkerRule"
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            )
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    def setUp(self, options):
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        lexerMod = __import__(options.lexerClass)
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        self.lexerClass = getattr(lexerMod, options.lexerClass)
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        parserMod = __import__(options.parserClass)
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        self.parserClass = getattr(parserMod, options.parserClass)
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    def parseStream(self, options, inStream):
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        lexer = self.lexerClass(inStream)
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        tokenStream = antlr3.CommonTokenStream(lexer)
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        parser = self.parserClass(tokenStream)
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        result = getattr(parser, options.parserRule)()
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        if result is not None:
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            assert hasattr(result, 'tree'), "Parser did not return an AST"
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            nodeStream = antlr3.tree.CommonTreeNodeStream(result.tree)
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            nodeStream.setTokenStream(tokenStream)
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            walker = self.walkerClass(nodeStream)
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            result = getattr(walker, options.walkerRule)()
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            if result is not None:
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                if hasattr(result, 'tree'):
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                    self.writeln(options, result.tree.toStringTree())
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                else:
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                    self.writeln(options, repr(result))
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