[antlr-interest] proposal for 2.7.4: charVocabulary defaults to ascii 1..127

Terence Parr parrt at cs.usfca.edu
Sun May 2 10:06:58 PDT 2004


On May 2, 2004, at 8:17 AM, Ric Klaren wrote:

> On Sat, May 01, 2004 at 11:42:40AM -0700, Terence Parr wrote:
>> Anybody object?  I'm seeing this issue come up too many times.  So, if
>> you don't specify, then charVocabulary is set for you to ascii.
>
> ASCII or the range 3-254 (extended ascii was it?) I'm not sure how 
> many of
> the reserved values 0-3 are used still in backends and/or the 
> analyzer....
> Making unicode default I dunno.. personally I would not do that. It 
> increases
> the default lexer size (not sure how much it blows up though).

Yeah, i'm thinking LATIN (0..254) would be the right approach to start 
with (start small as they say).  I will push out 2.7.4 over the next 
day or two.  Sounds like I need to really think about UNICODE.  Can 
easily be added gradually with some point releases.

Ter





 
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