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git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@15 e7d03fd6-7b0d-0410-9947-9c21f3af8025
117 lines
3.9 KiB
Python
117 lines
3.9 KiB
Python
"""
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GMLBaseParser.py -- created Mon Feb 28 14:20:00 2000
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This file was automatically generated by the PyLR parser generator.
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It defines the tables 'actiontable', 'gototable', and 'prodinfo'. These
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tables are used to give functionality to a parsing engine. It also defines
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A Parser class called GMLBaseParser which will use this engine. It's usage
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is indicated in GMLBaseParser's doc-string.
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"""
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#
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# this section contains source code added by the user
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# plus 'import PyLR'
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#
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import GML
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import PyLR
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#
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# the action table means
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# ('s', -1) shift
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# ('r', <n>) reduce with production n
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# ('a', -1) accept
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# ('', -1) error
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# each row represents a state and each column a terminal lookahead symbol
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# Lexer symbols are:
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# ['EOF', 'REAL', 'INTEGER', 'LSQB', 'RSQB', 'STRING', 'KEY']
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#
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_actiontable = [
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[('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('s', 6)],
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[('a', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('', -1)],
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[('r', 1), ('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('s', 6)],
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[('', -1), ('', -1), ('', -1), ('', -1), ('s', 12), ('', -1), ('s', 6)],
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[('r', 2), ('', -1), ('', -1), ('', -1), ('r', 2), ('', -1), ('r', 2)],
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[('r', 3), ('', -1), ('', -1), ('', -1), ('r', 3), ('', -1), ('r', 3)],
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[('', -1), ('s', 9), ('s', 8), ('s', 11), ('', -1), ('s', 10), ('', -1)],
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[('r', 4), ('', -1), ('', -1), ('', -1), ('r', 4), ('', -1), ('r', 4)],
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[('r', 5), ('', -1), ('', -1), ('', -1), ('r', 5), ('', -1), ('r', 5)],
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[('r', 6), ('', -1), ('', -1), ('', -1), ('r', 6), ('', -1), ('r', 6)],
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[('r', 7), ('', -1), ('', -1), ('', -1), ('r', 7), ('', -1), ('r', 7)],
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[('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('', -1), ('s', 6)],
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[('r', 8), ('', -1), ('', -1), ('', -1), ('r', 8), ('', -1), ('r', 8)]
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]
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#
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# the goto table, each row represents a state
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# and each column the nonterminal that was on the lhs of the
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# reduction
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#
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_gototable = [
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[1, 2, 5, None],
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[None, None, None, None],
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[None, None, 4, None],
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[None, None, 4, None],
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[None, None, None, None],
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[None, None, None, None],
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[None, None, None, 7],
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[None, None, None, None],
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[None, None, None, None],
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[None, None, None, None],
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[None, None, None, None],
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[None, 3, 5, None],
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[None, None, None, None]
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]
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#
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# This is the prodinfo table. each row represents a production
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# the entries are the length of the production, the name of a method
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# in an instance of the GMLBaseParser class below that gets called
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# when that production occurs, and the index of the lhs in the
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# nonterminals (as in the gototable)
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#
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_prodinfo = [
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(1, 'feddich', 0), # gml: list (feddich)
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(2, 'gml_key_value', 1), # list: list keyvalue (gml_key_value)
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(1, 'unspecified', 1), # list: keyvalue (unspecified)
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(2, 'key_value', 2), # keyvalue: 6 value (key_value)
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(1, 'unspecified', 3), # value: 2 (unspecified)
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(1, 'unspecified', 3), # value: 1 (unspecified)
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(1, 'unspecified', 3), # value: 5 (unspecified)
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(3, 'gmllist', 3), # value: 3 list 4 (gmllist)
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]
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class GMLBaseParser(PyLR.Parser):
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"""
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this class was produced automatically by the PyLR parser generator.
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It is meant to be subclassed to produce a parser for the grammar
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gml: list (feddich);
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list: list keyvalue (gml_key_value);
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list: keyvalue (unspecified);
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keyvalue: KEY value (key_value);
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value: INTEGER (unspecified);
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value: REAL (unspecified);
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value: STRING (unspecified);
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value: LSQB list RSQB (gmllist);
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While parsing input, if one of the above productions is recognized,
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a method of your sub-class (whose name is indicated in parens to the
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right) will be invoked. Names marked 'unspecified' should be ignored.
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usage:
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class MyGMLBaseParser(GMLBaseParser):
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# ...define the methods for the productions...
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p = MyGMLBaseParser(); p.parse(text)
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"""
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def __init__(self):
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lexer = GML.GMLLexer()
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PyLR.Parser.__init__(self, lexer, _actiontable, _gototable, _prodinfo)
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