[antlr-interest] Whitespace in identifiers

[Bart Kiers]

FYI:
http://stackoverflow.com/questions/6847971/antlr-identifier-with-whitespace


On Wed, Jul 27, 2011 at 7:39 PM, Lukas Glowania <lukas.glowania at rub.de>wrote:

> Hi,
>
> i want identifiers that can contain whitespace.
>
> |grammar WhitespaceInSymbols;
>
> premise :   ( options {greedy=false;} : 'IF' )  id=ID{
> System.out.println($id.text);
> };
>
> ID  :   ('a'..'z'|'A'..'Z')+ (' '('a'..'z'|'A'..'Z')+)*
> ;
>
> WS  :   ' '+ {skip();}
> ;
> |
>
> When i test this with "IF statement analyzed" i get a
> MissingTokenException and the output "IF statement analyzed".
> I thought, that by using greedy=false i could tell ANTLR to exit afer
> 'IF' and take it as a token. But instead the IF is part of the ID. Is
> there a way to achieve my goal? I already tried some variations of the
> greed=false-option, but without success.
> Thanks in advance!
>
>
>
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