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off-topic: Conversion multi-line diff to single-line


From: Werner LEMBERG
Subject: off-topic: Conversion multi-line diff to single-line
Date: Mon, 29 Aug 2011 07:39:21 +0200 (CEST)

Folks,


I have an off-topic question, and maybe you can help.  Is there a
program or script which converts the multiline chunks of diff (without
-u or -c) into single-line chunks?  This is, I want to have this

   XXX
   < foo1
   < foo2
   < foo3
   ---
   > bar1
   > bar2
   > bar3

converted into

   XXX
   < foo1
   ---
   > bar1
   YYY
   < foo2
   ---
   > bar2
   ZZZ
   > foo3
   ---
   < bar3

Such an output greatly simplifies comparison of large sorted word
lists with sparse or systematic insertions, deletions, or changes.


    Werner



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