Re: Why doesn't forward-paragraph save-match-data?

[Stefan Monnier]

> (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