Experimental parser: split and rename some files

tools/lexer_generator/regex_parser.py

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 import ply.lex as lex
 import ply.yacc as yacc
-from action import Term
+from term import Term
 from nfa_builder import NfaBuilder
 
 class ParserBuilder:
 
   class Logger(object):
     def debug(self,msg,*args,**kwargs):
       pass
 
     def info(self,msg,*args,**kwargs):
       pass
@@ skipping 243 matching lines @@
   @staticmethod
   def __cat(left, right):
     assert left
     return NfaBuilder.cat_terms([left] if not right else [left, right])
 
   @staticmethod
   def parse(string):
     new_lexer = lambda: RegexLexer()
     new_parser = lambda: RegexParser()
     return ParserBuilder.parse(string, "RegexParser", new_lexer, new_parser)