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Re: vi command for adding character

Cross-posted to 2 groups.

Followups directed to: comp.editors

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>>>>> geoffhazel  <geoffhazel@gmail.com> writes:

	[Cross-posting to news:comp.editors and setting Followup-To:
	there, for the question is hardly Unix-specific.]

 > I have a file like this

 > 02/1/2012
 > 02/2/2012
 > 02/3/2012
 > 03/1/2012
 > 03/2/2012
 > 03/3/2012

 > I want it to be 02/01/2012 and so forth, MM/DD/YYYY format with extra
 > 0's as placeholders.

[...]

 > I can find the patterns with /./ but how do I preserve the characters
 > that are there?  I seem to recall there's a way to specify those with
 > some regex but can't recall the details.

	One can reference a \(\)-group from within the s-command's
	replacement text with \1 ... \9, like:

s;/\([0-9]/\);/0\1;

-- 
FSF associate member #7257

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Thread

vi command for adding character geoffhazel <geoffhazel@gmail.com> - 2012-03-19 09:49 -0700
  Re: vi command for adding character Ivan Shmakov <oneingray@gmail.com> - 2012-03-20 02:04 +0700
  Re: vi command for adding character Rui Maciel <rui.maciel@gmail.com> - 2012-05-08 10:07 +0100

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