bug#13617: 24.2.92; [PATCH] Add strip-string

[Andreas Röhler]

Am 03.02.2013 10:40, schrieb Leo Liu:
> On 2013-02-03 16:56 +0800, Andreas Schwab wrote:
> > You could use the same rules as skip-chars-forward.

+1
> I looked at skip-chars-forward before opening this bug but found it
> complicate things by introducing new rules.

Which one?
IMO you may use skip-chars... internally, which is fast and reliable.

> In strip-string the idea is to have a default covering 90% of the use
> cases:
>
> (strip-string s)        ; strip both
> (strip-string s nil "") ; strip leading
> (strip-string s "")     ; strip trailing

Suggest keeping either boolean for not, resp. default,
or a string containing chars overriding the default.

while this is obsolet meanwhile:

http://lists.gnu.org/archive/html/gnu-emacs-sources/2007-01/msg00004.html

Andreas

> Refer users to regexp as in (info "(elisp)Regexp Special") for the
> remaining 10% use cases.
>
> Regards,
> Leo