[antlr-interest] lexing: case insensitivity

[Kay Roepke]

On Aug 20, 2007, at 10:09 AM, Edwards, Waverly wrote:

> In ANTLR Is it possible to manage the file stream *before* the lexer
> handles it?

That's probably not your best option, since you actually lose the  
character's
case (for pretty printing/error messages etc).

For the C target what Jim has done was to modify the input stream to  
always return
uppercase characters so that ANTLR is tricked into thinking  
everything was uppercase,
even though the actual input wasn't.

He provided <http://www.antlr.org/pipermail/antlr-interest/2007- 
January/019008.html>
in the discussion. Take a look :)

cheers,
-k
-- 
Kay Röpke
http://classdump.org/