* Reg-exp
@ 2002-08-22 21:08 J. Thomas
2002-08-22 21:59 ` Reg-exp David Forrest
0 siblings, 1 reply; 2+ messages in thread
From: J. Thomas @ 2002-08-22 21:08 UTC (permalink / raw)
I'm interested in doing a query search and replace for a regular
expression that goes something like this:
1. find a particular string (e.g. "test") followed by any 3 random
characters or numbers (e.g. "test100", "test234", "test_al")
2. replace an occurence with the random 3 characters/numbers followed by
"test" (e.g. "100test", "234test", "_altest).
How would I go about doing this?
Thanks,
jt
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Jason Thomas
Graduate Student
Dept. of Sociology
University of Washington, Seattle
method@u.washington.edu
http://students.washington.edu/~method
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Reg-exp
2002-08-22 21:08 Reg-exp J. Thomas
@ 2002-08-22 21:59 ` David Forrest
0 siblings, 0 replies; 2+ messages in thread
From: David Forrest @ 2002-08-22 21:59 UTC (permalink / raw)
Cc: help-gnu-emacs
On Thu, 22 Aug 2002, J. Thomas wrote:
>
> I'm interested in doing a query search and replace for a regular
> expression that goes something like this:
>
> 1. find a particular string (e.g. "test") followed by any 3 random
>
> characters or numbers (e.g. "test100", "test234", "test_al")
>
> 2. replace an occurence with the random 3 characters/numbers followed by
>
> "test" (e.g. "100test", "234test", "_altest).
I would try:
M-x query-replace-regexp
\(test\)\([0-9a-zA-Z_]+\)
\2\1
the \( \) pair defines groups which are refered to as \1 and \2 in the
replacement. This doesn't do the exact 3 that you want, but I don't know
if emacs has a bounding operator like {3} or {2,4} so if the 'one or more'
operator '+' wont do what you want, you could do the repeat manually:
\(test\)\([0-9a-zA-Z_][0-9a-zA-Z_][0-9a-zA-Z_]\)
>
>
> How would I go about doing this?
>
> Thanks,
> jt
>
>
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> Jason Thomas
> Graduate Student
> Dept. of Sociology
> University of Washington, Seattle
> method@u.washington.edu
> http://students.washington.edu/~method
>
>
>
>
> _______________________________________________
> Help-gnu-emacs mailing list
> Help-gnu-emacs@gnu.org
> http://mail.gnu.org/mailman/listinfo/help-gnu-emacs
>
--
Dave Forrest drf5n@virginia.edu
(804)642-0662h (434)924-3954w http://mug.sys.virginia.edu/~drf5n/
^ permalink raw reply [flat|nested] 2+ messages in thread
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