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view ply-3.8/test/lex_opt_alias.py @ 8977:8322b7cd18e5
<oerjan> ` mv wisdom/wob_jona{,s}
author | HackBot |
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date | Sat, 27 Aug 2016 02:38:28 +0000 |
parents | 343ff337a19b |
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# ----------------------------------------------------------------------------- # lex_opt_alias.py # # Tests ability to match up functions with states, aliases, and # lexing tables. # ----------------------------------------------------------------------------- import sys if ".." not in sys.path: sys.path.insert(0,"..") tokens = ( 'NAME','NUMBER', ) states = (('instdef','inclusive'),('spam','exclusive')) literals = ['=','+','-','*','/', '(',')'] # Tokens def t_instdef_spam_BITS(t): r'[01-]+' return t t_NAME = r'[a-zA-Z_][a-zA-Z0-9_]*' def NUMBER(t): r'\d+' try: t.value = int(t.value) except ValueError: print("Integer value too large %s" % t.value) t.value = 0 return t t_ANY_NUMBER = NUMBER t_ignore = " \t" t_spam_ignore = t_ignore def t_newline(t): r'\n+' t.lexer.lineno += t.value.count("\n") def t_error(t): print("Illegal character '%s'" % t.value[0]) t.lexer.skip(1) t_spam_error = t_error # Build the lexer import ply.lex as lex lex.lex(optimize=1,lextab="aliastab") lex.runmain(data="3+4")