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From: Pascal Bourguignon <pjb@informatimago.com>
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Subject: Re: regexp help
Date: Sat, 03 Feb 2007 23:18:05 +0100
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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.