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

From: Leo Liu
Subject: bug#13617: 24.2.92; [PATCH] Add strip-string
Date: Sun, 03 Feb 2013 17:40:01 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2.92 (OS X 10.8.2)

On 2013-02-03 16:56 +0800, Andreas Schwab wrote:
> You could use the same rules as skip-chars-forward.

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

In strip-string the idea is to have a default covering 90% of the use

(strip-string s)        ; strip both
(strip-string s nil "") ; strip leading
(strip-string s "")     ; strip trailing

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


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