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bug#20687: 25.0.50; `perform-replace' should invoke a key that you have

From: Drew Adams
Subject: bug#20687: 25.0.50; `perform-replace' should invoke a key that you have bound in `query-replace-map'
Date: Thu, 28 May 2015 14:12:16 -0700 (PDT)

You can bind any key you like in `query-replace-map'.  But
`perform-replace', in effect, hard-codes the keys that it recognizes.

This is not necessary.  You shbould be able to bind a new key in that
map to some command, and have `perform-replace' invoke that command.

All that's required for this is to add another `cond' clause, just
before the final `t' (otherwise) clause, to do this:

  (def (call-interactively def)) ; User-defined key - invoke it.
   ;; Note: we do not need to treat `exit-prefix'
   ;; specially here, since we reread
   ;; any unrecognized character.

It seems silly for the code to be written like it is.  We already look
up the key you press in the q-r keymap.  If we find a DEF that is not
one of those predefined by Emacs then we ignore it?  That makes no sense
(to me).

In GNU Emacs (i686-pc-mingw32)
 of 2014-10-20 on LEG570
Bzr revision: 118168 address@hidden
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --enable-checking=yes,glyphs CPPFLAGS=-DGLYPH_DEBUG=1'

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