From 0b19bb71ba5a4afa84e673a8239935426fa0db23 Mon Sep 17 00:00:00 2001 From: ptmcg Date: Tue, 9 Aug 2016 21:50:19 +0000 Subject: Remove incorrect tag directory git-svn-id: svn://svn.code.sf.net/p/pyparsing/code/tags/pyparsing_2.1.6@405 9bf210a0-9d2d-494c-87cf-cfb32e7dff7b --- trunk/src/examples/ebnftest.py | 66 ------------------------------------------ 1 file changed, 66 deletions(-) delete mode 100644 trunk/src/examples/ebnftest.py (limited to 'trunk/src/examples/ebnftest.py') diff --git a/trunk/src/examples/ebnftest.py b/trunk/src/examples/ebnftest.py deleted file mode 100644 index 32c7fed..0000000 --- a/trunk/src/examples/ebnftest.py +++ /dev/null @@ -1,66 +0,0 @@ -print('Importing pyparsing...') -from pyparsing import * - -print('Constructing EBNF parser with pyparsing...') -import ebnf -import sets - - -grammar = ''' -syntax = (syntax_rule), {(syntax_rule)}; -syntax_rule = meta_identifier, '=', definitions_list, ';'; -definitions_list = single_definition, {'|', single_definition}; -single_definition = syntactic_term, {',', syntactic_term}; -syntactic_term = syntactic_factor,['-', syntactic_factor]; -syntactic_factor = [integer, '*'], syntactic_primary; -syntactic_primary = optional_sequence | repeated_sequence | - grouped_sequence | meta_identifier | terminal_string; -optional_sequence = '[', definitions_list, ']'; -repeated_sequence = '{', definitions_list, '}'; -grouped_sequence = '(', definitions_list, ')'; -(* -terminal_string = "'", character - "'", {character - "'"}, "'" | - '"', character - '"', {character - '"'}, '"'; - meta_identifier = letter, {letter | digit}; -integer = digit, {digit}; -*) -''' - -table = {} -#~ table['character'] = Word(printables, exact=1) -#~ table['letter'] = Word(alphas + '_', exact=1) -#~ table['digit'] = Word(nums, exact=1) -table['terminal_string'] = sglQuotedString -table['meta_identifier'] = Word(alphas+"_", alphas+"_"+nums) -table['integer'] = Word(nums) - -print('Parsing EBNF grammar with EBNF parser...') -parsers = ebnf.parse(grammar, table) -ebnf_parser = parsers['syntax'] - -commentcharcount = 0 -commentlocs = sets.Set() -def tallyCommentChars(s,l,t): - global commentcharcount,commentlocs - # only count this comment if we haven't seen it before - if l not in commentlocs: - charCount = ( len(t[0]) - len(list(filter(str.isspace, t[0]))) ) - commentcharcount += charCount - commentlocs.add(l) - return l,t - -#ordinarily, these lines wouldn't be necessary, but we are doing extra stuff with the comment expression -ebnf.ebnfComment.setParseAction( tallyCommentChars ) -ebnf_parser.ignore( ebnf.ebnfComment ) - -print('Parsing EBNF grammar with generated EBNF parser...\n') -parsed_chars = ebnf_parser.parseString(grammar) -parsed_char_len = len(parsed_chars) - -print("],\n".join(str( parsed_chars.asList() ).split("],"))) - -#~ grammar_length = len(grammar) - len(filter(str.isspace, grammar))-commentcharcount - -#~ assert parsed_char_len == grammar_length - -print('Ok!') -- cgit v1.2.1