Like this:
error_handler := any* :>> '\n' @{fgoto main;};
main := whatever $!{fgoto error_handler;};
-Adrian
Julian Morrison wrote:
> It certainly does help, thanks.
>
> OK, next, I wasn't able to figure out how to do an error recovery. That
> is, when one of the (line*) starts to match, then fails, the error
> action should log the error, jump to another regex that matches (any*)
> :>> '\n', jump back and pick right back up trying to match more lines.
> It's plainly obvious that Ragel can do that, but the wizardry level is a
> bit above me. Please elucidate?
>
> 2009/1/23 Adrian Thurston <[email protected]
> <mailto:[email protected]>>
>
> In short, there isn't!
>
> Ragel does not make any assumption about the input, and this includes
> not assuming line-based input. If you want to anchor to something you
> just put that something into the grammar at the end. If you want to see
> if the machine finished in a final state (and thus consumed that
> something) you test cs against machine_first_final.
>
> Hope this helps,
> Adrian
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> ragel-users mailing list
> [email protected]
> http://www.complang.org/mailman/listinfo/ragel-users
_______________________________________________
ragel-users mailing list
[email protected]
http://www.complang.org/mailman/listinfo/ragel-users
