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* regexp help
@ 2007-02-02 23:20 gokhalen
  2007-02-03  3:37 ` HS
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: gokhalen @ 2007-02-02 23:20 UTC (permalink / raw)
  To: help-gnu-emacs

Hi,

I needed to replace lines matching the following pattern

"hello      123456123456"

with

"hello      123456 123456"

I used

M-x replace-regexp RET hello      ...... RET \&                      /
* NOTE: a white space follows the \&  */

To do this.

I was wondering how I would do this with the \d construct. That is how
would I do this along the lines of

M-x replace-regexp RET hello     \(......\)\1 RET hello      \1    /*
NOTE: a white space follows the \1    */


Thanks,

  -Nachiket.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
  2007-02-02 23:20 regexp help gokhalen
@ 2007-02-03  3:37 ` HS
  2007-02-03  4:27 ` Matthew Flaschen
       [not found] ` <mailman.3926.1170476834.2155.help-gnu-emacs@gnu.org>
  2 siblings, 0 replies; 9+ messages in thread
From: HS @ 2007-02-03  3:37 UTC (permalink / raw)
  To: help-gnu-emacs

On 2 fev, 20:20, gokha...@gmail.com wrote:
> Hi,
>
> I needed to replace lines matching the following pattern
>
> "hello      123456123456"
>
> with
>
> "hello      123456 123456"
>
> I used
>
> M-x replace-regexp RET hello      ...... RET \&                      /
> * NOTE: a white space follows the \&  */
>
> To do this.
>
> I was wondering how I would do this with the \d construct. That is how
> would I do this along the lines of
>
> M-x replace-regexp RET hello     \(......\)\1 RET hello      \1    /*
> NOTE: a white space follows the \1    */
>
> Thanks,
>
>   -Nachiket.

There's no \d construct....
Can't you record a keyboard macro ? it might be easier!

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
  2007-02-02 23:20 regexp help gokhalen
  2007-02-03  3:37 ` HS
@ 2007-02-03  4:27 ` Matthew Flaschen
  2007-02-03  4:31   ` Matthew Flaschen
       [not found] ` <mailman.3926.1170476834.2155.help-gnu-emacs@gnu.org>
  2 siblings, 1 reply; 9+ messages in thread
From: Matthew Flaschen @ 2007-02-03  4:27 UTC (permalink / raw)
  To: emacs


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gokhalen@gmail.com wrote:
> Hi,
> 
> I needed to replace lines matching the following pattern
> 
> "hello      123456123456"
> 
> with
> 
> "hello      123456 123456"
> 
> I used
> 
> M-x replace-regexp RET hello      ...... RET \&                      /
> * NOTE: a white space follows the \&  */
> 
> To do this.
> 
> I was wondering how I would do this with the \d construct. That is how
> would I do this along the lines of

I'm not sure, but I think you want this:

M-x replace-regexp
\([0-9][0-9][0-9][0-9][0-9][0-9]\)\([0-9][0-9][0-9][0-9][0-9][0-9]\) RET
    \1 \2 RET

There may be some way to avoid repeating the [0-9] but I couldn't figure
that out.

Matthew Flaschen


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_______________________________________________
help-gnu-emacs mailing list
help-gnu-emacs@gnu.org
http://lists.gnu.org/mailman/listinfo/help-gnu-emacs

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
  2007-02-03  4:27 ` Matthew Flaschen
@ 2007-02-03  4:31   ` Matthew Flaschen
  0 siblings, 0 replies; 9+ messages in thread
From: Matthew Flaschen @ 2007-02-03  4:31 UTC (permalink / raw)
  To: emacs


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Matthew Flaschen wrote:
> gokhalen@gmail.com wrote:
>> Hi,
>>
>> I needed to replace lines matching the following pattern
>>
>> "hello      123456123456"
>>
>> with
>>
>> "hello      123456 123456"
>>
>> I used
>>
>> M-x replace-regexp RET hello      ...... RET \&                      /
>> * NOTE: a white space follows the \&  */
>>
>> To do this.
>>
>> I was wondering how I would do this with the \d construct. That is how
>> would I do this along the lines of
> 
> I'm not sure, but I think you want this:
> 
> M-x replace-regexp
> \([0-9][0-9][0-9][0-9][0-9][0-9]\)\([0-9][0-9][0-9][0-9][0-9][0-9]\) RET
>     \1 \2 RET
> 
> There may be some way to avoid repeating the [0-9] but I couldn't figure
> that out.

Never mind.  I just forgot the escape.  The best way (I think) is:

\([0-9]\{6\}\)\([0-9]\{6\}\) RET \1 \2 RET

Matthew Flaschen


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_______________________________________________
help-gnu-emacs mailing list
help-gnu-emacs@gnu.org
http://lists.gnu.org/mailman/listinfo/help-gnu-emacs

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
       [not found] ` <mailman.3926.1170476834.2155.help-gnu-emacs@gnu.org>
@ 2007-02-03 20:31   ` M G Berberich
  2007-02-03 22:18   ` Pascal Bourguignon
  1 sibling, 0 replies; 9+ messages in thread
From: M G Berberich @ 2007-02-03 20:31 UTC (permalink / raw)
  To: help-gnu-emacs

On Fri, 02 Feb 2007, Matthew Flaschen <matthew.flaschen@gatech.edu> wrote:

> There may be some way to avoid repeating the [0-9] but I couldn't
> figure that out.

Regular Expressions can't count.

-- 
„Des is völlig wurscht, was heut beschlos- | M G Berberich
 sen wird: I bin sowieso dagegn!“          | berberic@fmi.uni-passau.de
(SPD-Stadtrat Kurt Schindler; Regensburg)  | www.fmi.uni-passau.de/~berberic

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
       [not found] ` <mailman.3926.1170476834.2155.help-gnu-emacs@gnu.org>
  2007-02-03 20:31   ` M G Berberich
@ 2007-02-03 22:18   ` Pascal Bourguignon
  1 sibling, 0 replies; 9+ messages in thread
From: Pascal Bourguignon @ 2007-02-03 22:18 UTC (permalink / raw)
  To: help-gnu-emacs

Matthew Flaschen <matthew.flaschen@gatech.edu> writes:

> gokhalen@gmail.com wrote:
>> Hi,
>> 
>> I needed to replace lines matching the following pattern
>> 
>> "hello      123456123456"
>> 
>> with
>> 
>> "hello      123456 123456"
>> 
>> I used
>> 
>> M-x replace-regexp RET hello      ...... RET \&                      /
>> * NOTE: a white space follows the \&  */
>> 
>> To do this.
>> 
>> I was wondering how I would do this with the \d construct. That is how
>> would I do this along the lines of
>
> I'm not sure, but I think you want this:
>
> M-x replace-regexp
> \([0-9][0-9][0-9][0-9][0-9][0-9]\)\([0-9][0-9][0-9][0-9][0-9][0-9]\) RET
>     \1 \2 RET
>
> There may be some way to avoid repeating the [0-9] but I couldn't figure
> that out.

  \([0-9]\{6\}\)\([0-9]\{6\}\)

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

The world will now reboot.  don't bother saving your artefacts.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* regexp help
@ 2008-04-23 14:34 Neal Becker
  0 siblings, 0 replies; 9+ messages in thread
From: Neal Becker @ 2008-04-23 14:34 UTC (permalink / raw)
  To: help-gnu-emacs

I'm looking at outline mode.

I see outline-regexp is set to:
Its value is "[*\f]+"

Looking in emacs info, I see no reference to '\f'.  What is it?

Looking at a buffer in C-mode, I see:
Its value is "[^#\n^M]"

I don't recognize the '#', what does this mean?





^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
       [not found] <mailman.10741.1208961303.18990.help-gnu-emacs@gnu.org>
@ 2008-04-23 15:59 ` Johan Bockgård
  2008-04-23 16:04 ` tyler
  1 sibling, 0 replies; 9+ messages in thread
From: Johan Bockgård @ 2008-04-23 15:59 UTC (permalink / raw)
  To: help-gnu-emacs

Neal Becker <ndbecker2@gmail.com> writes:

> I see outline-regexp is set to:
> Its value is "[*\f]+"
>
> Looking in emacs info, I see no reference to '\f'.  What is it?

Look it up in the Emacs Lisp manual (or do a full text search in the
Emacs manual).

     ?\f => 12                ; formfeed character, `C-l'

> Looking at a buffer in C-mode, I see:
> Its value is "[^#\n^M]"
>
> I don't recognize the '#', what does this mean?

Nothing special.  It stands for itself.

-- 
Johan Bockgård


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: regexp help
       [not found] <mailman.10741.1208961303.18990.help-gnu-emacs@gnu.org>
  2008-04-23 15:59 ` Johan Bockgård
@ 2008-04-23 16:04 ` tyler
  1 sibling, 0 replies; 9+ messages in thread
From: tyler @ 2008-04-23 16:04 UTC (permalink / raw)
  To: help-gnu-emacs

Neal Becker <ndbecker2@gmail.com> writes:

> I'm looking at outline mode.
>
> I see outline-regexp is set to:
> Its value is "[*\f]+"
>
> Looking in emacs info, I see no reference to '\f'.  What is it?

It's an escape character indicating a 'formfeed'. 

>
> Looking at a buffer in C-mode, I see:
> Its value is "[^#\n^M]"
>
> I don't recognize the '#', what does this mean?
>

Sometimes a hash is just a hash. I'm not sure what the context is here,
but maybe it has something to do with recognising #include and #define
in c code.

HTH,

Tyler

-- 
Friends don't let friends send Word documents

http://www.nothingisreal.com/dfki/no-word


^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2008-04-23 16:04 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-02-02 23:20 regexp help gokhalen
2007-02-03  3:37 ` HS
2007-02-03  4:27 ` Matthew Flaschen
2007-02-03  4:31   ` Matthew Flaschen
     [not found] ` <mailman.3926.1170476834.2155.help-gnu-emacs@gnu.org>
2007-02-03 20:31   ` M G Berberich
2007-02-03 22:18   ` Pascal Bourguignon
  -- strict thread matches above, loose matches on Subject: below --
2008-04-23 14:34 Neal Becker
     [not found] <mailman.10741.1208961303.18990.help-gnu-emacs@gnu.org>
2008-04-23 15:59 ` Johan Bockgård
2008-04-23 16:04 ` tyler

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