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From: Ralf Fassel <ralfixx@gmx.de>
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Subject: Re: efficient replacing =?big5?B?oVY=?= really faster compared to
	using the mouse?
Date: Fri, 10 Aug 2012 18:47:53 +0200
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* Ferdinand <Ferdinand.Gruebler@gmx.de>
| [change "name='xyz23'" to "name='xyz1'" in multiple lines]
| In emacs I just have no idea how to do this in a reasonable amount of time.

See
   replace-rectangle
for the direct equivalent, though the optical feedback might be
different.  (I don't know whether emacs supports marking a rectangular
block different than the region in the meantime).

'replace-regexp-region' also does the trick if the replacements are
constant like in your case.

R'