On Friday, Aug 29, 2003 Colin Kuskie said:
I know its real simple, but below is what I have done in a similar situation:
> I often find myself giving identical productions different
> identifiers to make my grammar clearer and to get around the limitation
> of named access only giving the last match to an identifier, like
> the following:
>
> my $grammar = <<'EOGRAMMAR';
>
> instance : cell inst '(' signal(s /,/) ')' ';'
>
> { bless { cell => $item{cell},
> inst => $item{inst},
> signals => $item[4]
> }, $item[0]; }
>
>
> cell : /\w+/
>
> { $item [1] }
>
> inst : /\w+/
>
> { $item [1] }
>
> signal: '.' dest '(' src ')'
>
> {
> bless { dest => $item{dest},
> src => $item{src}
> }, $item[0];
> }
>
> src : /[^)(]+/
>
> { $item [1] }
>
> dest : /[^)(]+/
>
> { $item [1] }
>
> EOGRAMMAR
>
> I was wondering if there was a way to specify multiple identifiers
> with the same production with a syntax like:
>
> cell item : /\w+/
>
> or
>
> cell, item : /\w+/
>
> or
>
> cell:
> item: /w+/
cell_or_item: /\w+/
>
> Thanks,
> Colin Kuskie
--
Intel, Corp.
5000 W. Chandler Blvd.
Chandler, AZ 85226
--
Intel, Corp.
5000 W. Chandler Blvd.
Chandler, AZ 85226
