Re: RecDescent error handling

If I understand you, just have your subroutine change a global variable to be the error message, then look at that on an undef return. You can make it a list if you want to report more than one error. You also might want to look into the <error:...> directive for the grammar.

-- Randal L. Schwartz, Perl hacker

Comment on Re: RecDescent error handling Download Code

Replies are listed 'Best First'.
RE: Re: RecDescent error handling by dcorbin (Sexton) on Sep 05, 2000 at 23:26 UTC
I did look into <error:>. I even tried to mention it above, though it apparently got eaten up as HTML so no one could see it. I'm apparently having a problem placing that directive where it gets activated only if the action fails.	[reply]
RE: RE: Re: RecDescent error handling by merlyn (Sage) on Sep 05, 2000 at 23:28 UTC
As the docs show, try something like: `foo: bar { ::myroutine($item{bar}) } # this may fail, returning undef \| <error: ... your message here >` [download] -- Randal L. Schwartz, Perl hacker	[reply] [d/l]