* Re: Why doesn't forward-paragraph save-match-data?
[not found] ` <0ngpfb.5e.ln@acm.acm>
@ 2003-07-28 20:23 ` Stefan Monnier
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From: Stefan Monnier @ 2003-07-28 20:23 UTC (permalink / raw)
> (save-excursion
> (forward-paragraph -1)
> (< (point) (match-beginning 0)))
> It seems to me that that comparison ALWAYS evaluates to nil.
> I feel that either forward-paragraph should have a save-match-data round
> it, or its doc string should mention that the caller might have to use
> save-match-data.
If anything, what is missing a some more documentation in `match-beginning'
explaining that the match data is "ephemeral" and can be changed by most
functions other than very basic ones that obviously don't use regexps (like
`car'). It's generally a lot easier to fix the very few places where
this ephemerality is a problem than to add `save-match-data'
around everything.
Stefan
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2003-07-28 20:23 ` Why doesn't forward-paragraph save-match-data? Stefan Monnier
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