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Re: Pattern matches one type of paren but not another


From: Maury Markowitz
Subject: Re: Pattern matches one type of paren but not another
Date: Mon, 29 May 2023 08:35:31 -0400

> On May 28, 2023, at 4:40 PM, Hans Åberg <haberg-1@telia.com> wrote:
> 
> operator_value:
>   VARIABLE_NAME '(' exprlist ')'
> | VARIABLE_NAME '[' exprlist ‘]’
> ;


*sigh*

The error was in my scanner. I had:

[:,;()[]\^=+\-*/\<\>\&]     { return yytext[0]; }

Duh.

That said, am I missing a warning output? I realize it would be difficult to 
warn on this, although empty sets inside a set does seem like something that 
might be checked on?

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