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bug#14207: 24.2; insert-file-contents clobbers match data


From: Eli Zaretskii
Subject: bug#14207: 24.2; insert-file-contents clobbers match data
Date: Mon, 15 Apr 2013 08:16:35 +0300

> From: Aidan Gauland <address@hidden>
> Date: Mon, 15 Apr 2013 12:56:26 +1200
> 
> If (and only if) the match data is non-nil when `insert-file-contents'
> is called, it clobbers the match-data.

And why is that a bug?

>From the ELisp manual (node "Match Data"):

     Notice that all functions are allowed to overwrite the match data
  unless they're explicitly documented not to do so.

'insert-file-contents' is not documented to preserve match data.





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