[antlr-interest] Fwd: How can I check in a code section of which type a token is?

[Austin Hastings]

OJ,

You could check if the first character of $c.text was a double-quote (").

Or you could put logic in the grammar to handle that in a subrule:

value_param returns [ value ]
    : STRING_CONST { $value = $STRING_CONST.text; }
    | identifier { $value = myFetchValueFunction($identifier.text); }
    ;

=Austin


OJAY78 at gmx.de wrote:
> Hi @all,
>
> I have such an Rule alternative
> 'IsEqual''('a=function_type ',' b=identifier','c=(STRING_CONST|identifier)')'
> 	{
>
> 		if ($c.type==STRING_CONST)????
> }
>
> How can I detect inside my code Section if c is of the typ STRING_CONST or identifier. Thanks for your help!!
>