mirror of
https://github.com/Hopiu/linkchecker.git
synced 2026-03-23 01:10:27 +00:00
de111dd97b
git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@13 e7d03fd6-7b0d-0410-9947-9c21f3af8025
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
#
|
|
# this file's doc string is used as a template for producing PyLRtables.py.
|
|
# PyLRtables.py containes the source code to produce the engine part of a
|
|
# parser.
|
|
#
|
|
'''\
|
|
"""
|
|
%(filename)s -- created %(date)s
|
|
|
|
This file was automatically generated by the PyLR parser generator.
|
|
It defines the tables 'actiontable', 'gototable', and 'prodinfo'. These
|
|
tables are used to give functionality to a parsing engine. It also defines
|
|
A Parser class called %(parsername)s which will use this engine. It's usage
|
|
is indicated in %(parsername)s's doc-string.
|
|
"""
|
|
#
|
|
# this section contains source code added by the user
|
|
# plus 'import PyLR'
|
|
#
|
|
%(extrasource)s
|
|
import PyLR
|
|
|
|
#
|
|
# the action table means
|
|
# ('s', -1) shift
|
|
# ('r', <n>) reduce with production n
|
|
# ('a', -1) accept
|
|
# ('', -1) error
|
|
# each row represents a state and each column a terminal lookahead symbol
|
|
# Lexer symbols are:
|
|
# %(symbols)s
|
|
#
|
|
_actiontable = %(actiontable)s
|
|
|
|
#
|
|
# the goto table, each row represents a state
|
|
# and each column the nonterminal that was on the lhs of the
|
|
# reduction
|
|
#
|
|
_gototable = %(gototable)s
|
|
|
|
#
|
|
# This is the prodinfo table. each row represents a production
|
|
# the entries are the length of the production, the name of a method
|
|
# in an instance of the %(parsername)s class below that gets called
|
|
# when that production occurs, and the index of the lhs in the
|
|
# nonterminals (as in the gototable)
|
|
#
|
|
_prodinfo = %(prodinfo)s
|
|
|
|
|
|
class %(parsername)s(PyLR.Parser):
|
|
"""
|
|
this class was produced automatically by the PyLR parser generator.
|
|
It is meant to be subclassed to produce a parser for the grammar
|
|
|
|
%(grammar)s
|
|
|
|
While parsing input, if one of the above productions is recognized,
|
|
a method of your sub-class (whose name is indicated in parens to the
|
|
right) will be invoked. Names marked 'unspecified' should be ignored.
|
|
|
|
usage:
|
|
|
|
class My%(parsername)s(%(parsername)s):
|
|
# ...define the methods for the productions...
|
|
|
|
p = My%(parsername)s(); p.parse(text)
|
|
"""
|
|
def __init__(self):
|
|
lexer = %(lexerinit)s
|
|
PyLR.Parser.__init__(self, lexer, _actiontable, _gototable, _prodinfo)
|
|
'''
|
|
|