[antlr-interest] Parsing floats and unary minus

[Bart Kiers]

On Sat, Apr 24, 2010 at 4:25 AM, Rick Mann <rmann at latencyzero.com> wrote:

> float returns [float val]
>        :       { $val = Float.parseFloat($FLOAT.text); }
>        ;
>

Note that you never use your 'float' rule.


On Sat, Apr 24, 2010 at 4:25 AM, Rick Mann <rmann at latencyzero.com> wrote:

> INT :   '0'..'9'+
>    ;
>
> FLOAT
>    :   ('0'..'9')+ '.' ('0'..'9')* EXPONENT?
>    |   '.' ('0'..'9')+ EXPONENT?
>    |   ('0'..'9')+ EXPONENT
>    ;
>

Try placing FLOAT before INT in your grammar.

Regards,

Bart.