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Re: How can I enter query-replace in GNU Emacs using a repeatable funct
From: |
Fren Zeee |
Subject: |
Re: How can I enter query-replace in GNU Emacs using a repeatable function based on values in the line currently at point. - Super User |
Date: |
Wed, 08 Dec 2010 15:16:06 -0000 |
User-agent: |
G2/1.0 |
On Jun 24, 12:38 am, bolega <gnuist...@gmail.com> wrote:
> On Jun 21, 9:18 am, Tim Visher <tim.vis...@gmail.com> wrote:
>
>
>
> > On Mon, Jun 21, 2010 at 11:00 AM, Tim Landscheidt
>
> > <t...@tim-landscheidt.de> wrote:
> > > Tim Visher <tim.vis...@gmail.com> wrote:
>
> > >> I'd like to take the following data and query-replace occurences of
> > >> each word identifier with the corresponding numeric identifier using
> > >> some sort of repeatable function.
>
> > >> -1 ACT/CNS
> > >> -2 AG NFC
> > >> -3 AID
> > >> -4 BBG
> > >> -5 BIA
> > >> -6 BLM
> > >> -7 BOC
> > >> -8 BPD
> > >> -9 CCC
> > >> -10 CDC
> > >> -11 Census
>
> > >> In other words, with point at
>
> > >> -1 ACT/CNS
> > >> ^
>
> > >> I'd like to be able to hit a key and launch into the following command
>
> > >> query-replace RET ACT/CNS RET -1 RET
> > >> [...]
>
> > > From my experience, the easiest way to do that is to copy
> > > the lines to a temporary buffer, hack up a small lisplet:
>
> > > | (dolist (line '(("-1" "ACT/CNS")
> > > | ("-2" "AG NFC")
> > > | ("-3" "AID")
> > > | ("-4" "BBG")
> > > | ("-5" "BIA")
> > > | ("-6" "BLM")
> > > | ("-7" "BOC")
> > > | ("-8" "BPD")
> > > | ("-9" "CCC")
> > > | ("-10" "CDC")
> > > | ("-11" "Census")))
> > > | (query-replace (car line) (cdr line) nil (point-min) (point-max)))
>
> > > and then evaluate that in the original buffer with M-x :.
>
> > > While it is possible to create a proper "one-key command"
> > > as you intended, chances are that it is very cumbersome and
> > > that you will have to change it soon afterwards when your
> > > requirements shift just a little bit. Directly programming
> > > in Emacs Lisp is much easier and more flexible.
>
> > > Tim
>
> > That worked perfectly. Thanks, Tim.
>
> > --
>
> > In Christ,
>
> Its new for me so I write the documentation here
>
> (defmacro dolist (spec &rest body)
> "(dolist (VAR LIST [RESULT]) BODY...): loop over a list.
> Evaluate BODY with VAR bound to each `car' from LIST, in turn.
> Then evaluate RESULT to get return value, default nil."
> (let ((temp (gensym "--dolist-temp--")))
> (list 'block nil
> (list* 'let (list (list temp (nth 1 spec)) (car spec))
> (list* 'while temp (list 'setq (car spec) (list 'car temp))
> (append body (list (list 'setq temp
> (list 'cdr temp)))))
> (if (cdr (cdr spec))
> (cons (list 'setq (car spec) nil) (cdr (cdr spec)))
> '(nil))))))
>
> I think the readability and rememberability would be improved by
> writing it as
>
> (dolist
> (foreach
> '( ("" "")
> ("" "")
> ("" "")))
> (save-excursion (replace-string (car foreach) (cdr foreach))))
>
> Bolega
better to use
eachpair
than
foreach