[Wisp-cvs] wisp/users/dig tran.py,1.67,1.68

[<di...@us...>]

Update of /cvsroot/wisp/wisp/users/dig
In directory sc8-pr-cvs1:/tmp/cvs-serv32167

Modified Files:
	tran.py 
Log Message:
introduced the Token_Source abstraction layer class

Index: tran.py
===================================================================
RCS file: /cvsroot/wisp/wisp/users/dig/tran.py,v
retrieving revision 1.67
retrieving revision 1.68
diff -u -d -r1.67 -r1.68
--- tran.py	13 May 2003 18:15:53 -0000	1.67
+++ tran.py	15 May 2003 05:39:50 -0000	1.68
@@ -99,7 +99,10 @@
 
 Semicolon = Unique_Token(';')
 
-class Lexer (shlex):
+class Token_Source (object):
+    get_token = abstract
+
+class Lexer (shlex, Token_Source):
     def __init__ (this, filename):
         shlex.__init__(this, instream = open(filename, 'r'), infile = filename)
         this.commenters = '\\'