[pmwiki-users] Re: Modified (:markup:)
Patrick R. Michaud
pmichaud at pobox.com
Mon Mar 21 09:14:54 CST 2005
On Mon, Mar 21, 2005 at 08:44:40AM +0100, Joachim Durchholz wrote:
> Patrick R. Michaud wrote:
> >I agree, but my implementation of [== ... ==] currently breaks in
> >the face of text containing multiple [==]'s, so I have to either come
> >up with a much better pattern or go back to the drawing board.
> Would a backreference work?
The matching code already uses a backreference and no it doesn't work.
> The (=*) captures the string of =s after the opening [ and stores them
> in the $1 variable, the [^= makes sure that a non-= is between the
> brackest-and-equals-signs delimiters (else we'd match stuff like [==]
> and we don't want that - might be a useful markup for other purposes),
Unfortunately, [==] is already valid markup and it's already being
used for a variety of purposes. In particular, it can be used to
prevent Wiki[==]Words, and I've used it to avoid processing something
that would otherwise be a beginning of line markup. Thus:
[==]** Line beginning with ''asterisks'', avoid Wiki[==]Word.
Unfortunately, the regexp above (and various others I've tried)
sees this as one big escape instead of two small ones, resulting in
]** Line beginning with ''asterisks'', avoid Wiki[Word.
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