Last change
on this file since 1 was
1,
checked in by lnalod, 15 years ago
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Initial import of YAO sources
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File size:
912 bytes
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Rev | Line | |
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[1] | 1 | // This file is part of PyANTLR. See LICENSE.txt for license |
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| 2 | // details..........Copyright (C) Wolfgang Haefelinger, 2004. |
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| 3 | // |
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| 4 | // $Id$ |
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| 5 | |
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| 6 | header "Lexer.__main__" { |
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| 7 | // main - create and run lexer from stdin |
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| 8 | if __name__ == "__main__": |
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| 9 | import sys |
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| 10 | import antlr |
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| 11 | import rulefilter_l |
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| 12 | |
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| 13 | // create lexer - shall read from stdin |
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| 14 | L = rulefilter_l.Lexer() |
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| 15 | |
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| 16 | try: |
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| 17 | token = L.nextToken() |
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| 18 | while not token.isEOF(): |
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| 19 | print token |
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| 20 | token = L.nextToken() |
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| 21 | |
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| 22 | except antlr.TokenStreamException, e: |
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| 23 | print "error: exception caught while lexing:", e |
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| 24 | |
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| 25 | // end of main |
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| 26 | } |
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| 27 | |
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| 28 | options { |
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| 29 | language=Python; |
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| 30 | } |
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| 31 | |
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| 32 | class rulefilter_l extends Lexer; |
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| 33 | |
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| 34 | options { |
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| 35 | k=2; |
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| 36 | filter=IGNORE; |
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| 37 | charVocabulary = '\3'..'\177'; |
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| 38 | } |
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| 39 | |
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| 40 | P : "<p>" ; |
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| 41 | BR: "<br>" ; |
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| 42 | |
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| 43 | protected |
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| 44 | IGNORE |
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| 45 | : '<' (~'>')* '>' { print "invalid tag: "+ $getText} |
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| 46 | | ( "\r\n" | '\r' | '\n' ) { $newline } |
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| 47 | | . |
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| 48 | ; |
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