diff options
| -rw-r--r-- | ply/lex.py | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -200,7 +200,9 @@ class Lexer(object): # input() - Push a new string into the lexer # ------------------------------------------------------------ def input(self,s): - if not (isinstance(s,types.StringType) or isinstance(s,types.UnicodeType)): + # Pull off the first character to see if s looks like a string + c = s[:1] + if not (isinstance(c,types.StringType) or isinstance(c,types.UnicodeType)): raise ValueError, "Expected a string" self.lexdata = s self.lexpos = 0 |