replace.el changes...

[David Kastrup]

Hi,

I m trying to get consistent behavior into replace.el.  One thing
that currently is inconsistent is the following:

You can use ^ to revisit previous replacements whether or not you did
actually perform the replacement.  When you do a replacement without
going on, the replaced region is highlighted.  When you go backwards
in the list, the highlighting does not move backward as well, unless
you are actually doing replacements.

If a replacement has already been done, the stored information in the
history does not contain the highlighted region.  So I am going to
have to either change the history information format, or don't enter
actually performed replacements into that list for revisiting in the
first place, or don't highlight things when going backwards in the
list.  Incidentally, the history is also the return value from all
replacement commands: anybody know whether this is actually used
anywhere?

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum