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Re: should search ring contain duplicates?
From: |
Dan Nicolaescu |
Subject: |
Re: should search ring contain duplicates? |
Date: |
Wed, 3 May 2006 00:27:02 -0700 |
"Drew Adams" <address@hidden> writes:
> Each successful incremental search adds the search string to the search ring
> (as the most recent entry), even if it is already in the ring past the first
> entry. Nothing prevents the ring from containing multiple copies of the same
> string, which seems wasteful (and useless). At the limit, the search ring,
> regardless of its length, might contain as few as two different search
> strings.
>
> Shouldn't `isearch-update-ring' (in isearch.el) add the latest search string
> at the front of the ring but remove it elsewhere in the ring? The result
> would be a more useful ring.
`isearch-update-ring' could at least do that when
history-delete-duplicates is t.
Something like this could help: [completely untested]
(defun isearch-update-ring (string &optional regexp)
"Add STRING to the beginning of the search ring.
REGEXP says which ring to use."
(if regexp
(if (or (null regexp-search-ring)
(not (string= string (car regexp-search-ring))))
(progn
(when history-delete-duplicates
(setq regexp-search-ring (delete string regexp-search-ring)))
(push string regexp-search-ring)
(if (> (length regexp-search-ring) regexp-search-ring-max)
(setcdr (nthcdr (1- search-ring-max) regexp-search-ring)
nil))))
(if (or (null search-ring)
(not (string= string (car search-ring))))
(progn
(when history-delete-duplicates
(setq search-ring (delete string search-ring)))
(push string search-ring)
(if (> (length search-ring) search-ring-max)
(setcdr (nthcdr (1- search-ring-max) search-ring) nil))))))
- should search ring contain duplicates?, Drew Adams, 2006/05/02
- Re: should search ring contain duplicates?,
Dan Nicolaescu <=
- Re: should search ring contain duplicates?, Kim F. Storm, 2006/05/03
- Re: should search ring contain duplicates?, Juri Linkov, 2006/05/03
- Re: should search ring contain duplicates?, Kim F. Storm, 2006/05/03
- Re: should search ring contain duplicates?, Kim F. Storm, 2006/05/04
- Re: should search ring contain duplicates?, David Kastrup, 2006/05/04
- Re: should search ring contain duplicates?, Stefan Monnier, 2006/05/04
- Re: should search ring contain duplicates?, Kim F. Storm, 2006/05/04
- Re: should search ring contain duplicates?, David Kastrup, 2006/05/04
- Re: should search ring contain duplicates?, Richard Stallman, 2006/05/05
- Re: should search ring contain duplicates?, Kim F. Storm, 2006/05/05