[antlr-interest] grammar question

[Prashant Deva]

Try using a syntactic proedicate.

Something like -

MID  :  ("M" STRING) => M (STRING)+
;

PRASHANT
      

On 9/20/05, Harsh Deshmane <hdeshmane at montalvosystems.com> wrote:
> 
> Hi,
> 
> I have a simple grammar question-
> 
> for spice syntax, a transistor is defined as
> 
> Mname term1 term2 term3 term4
> 
> name can be
> 
> 
> NAME_IDENTIFIER
>         options {testLiterals=true; }
>         :
>         ('0'..'9'|'a'..'z'|'_'| '$' |'#'|'[' |']'|'%'|'+'|'-'|'/'|'<'|'>')+
>         ;
> 
> (LT(1)->getColumn() == 1) "M" gives me token at the first column ?
> However, if I try to specify
> 
> M<name> by
> 
> "M"(NAME_IDENTIFIER)+
> or
> "M"(STRING)+
> or
> (M(STRING)+)
> 
> or any such construct, I get the parser expecting M to be the first token
> and then followed by the STRING or IDENTIFIER as the second token.
> 
> How can I define "M<anything>" ?
> 
> For my case,
> syntax like
> M term1 term2 term3 term4
> 
> passes, but I need
> Mname term1 ..
>  to pass.
> 
> thanks,
> -harsh
> 
>