lex を試す。行情報の更新 - noritsugu’s diary

#!/usr/bin/env python import ply.lex as lex tokens = ( 'A', 'PLUS', ) t_A = r'a' t_PLUS = r'\+' def t_newline(t): r'\n+' t.lexer.lineno += len(t.value) #t.lexer.lexpos = 0 def t_error(t): print "Illegal character '%s'" % t.value[0] t.lexer.skip(1) lex.lex() lex.input("a+a\naaa\n") while 1: tok = lex.token() if not tok: break # No more input print tok で、 LexToken(A,'a',1,0) LexToken(PLUS,'+',1,1) L