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From: Carlo Traverso <traverso@dm.unipi.it>
Cc: keichwa@gmx.net, alex@gnu.org, kifer@cs.sunysb.edu, emacs-devel@gnu.org
Subject: Re: ediff feature request: diffing line by line
Date: Sun, 17 Mar 2002 17:26:46 +0100 (CET)	[thread overview]
Message-ID: <20020317162646.D1CCAB804@cardano.dm.unipi.it> (raw)
In-Reply-To: <jeit7v42yi.fsf@sykes.suse.de> (message from Andreas Schwab on Sun, 17 Mar 2002 16:40:53 +0100)



I had missed ediff-regions-wordwise and ediff-windows-wordwise, that
solve a lot of my problems; however these three enhancements would
help:

1 - switching from ediff-buffers to ediff-regions-wordwise: a key
could be defined to select the current ediff regions in both
buffers and enter an ediff-regions-wordwise on them; the same for
ediff-windows-wordwise. This is currently possible, but not with one
key (this should be extremely easy to implement).

2 - the highlighting scheme should be revised, since entering
ediff-regions-wordwise from ediff-buffers removes highlighting from
the current word (i.e. the current region in ediff and the current
word in ediff-regions-wordwise are highlited in the same color...)
ediff-windows-wordwise inside of ediff-buffers is even worse....
(this should be very easy too)

3 - enhancing ediff-regions-wordwise (ediff-windows-wordwise) allowing
to discover and reconcile whitespace "substantial" differences: I
consider "substantial" these differences:

- additional blank lines
- space between words vs no space between words (e.g. "one=1" vs "one = 1"

The amount of whitespace (e.g. "  " vs " ") or the type (space, tab,
newline) is inessential (but two consecutive newlines is not the same
as one newline...)

(I am uncertain about space at the beginning of a line...)

----

Before sending this message (after composing it) I have compiled emacs
21.1.1 (I was using 20.7.1); unfortunately, I have to say that the new
version of ediff-*-wordwise is worse for my purpose:

in this example, in the old version there were two differences:


Que la dont je viens d outremer
               ^^^^^  ^
Que la dont je vieng d'outremer


that have collapsed in one larger difference:


Que la dont je viens d outremer
               ^^^^^^^^^^^^^^^^
Que la dont je vieng d'outremer

and of course here I have to choose one from each version...

Apparently the definition of "wordwise" has changed; maybe, what I
would like to have is an "ediff-*-characterwise" with the possibility
to switch from one "ediff-*-*wise" to the other.

There is a small shift in behaviour as far as point 2 of the above
enhancements is concerned, with a small (but non substantial)
improvement.

Carlo


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  reply	other threads:[~2002-03-17 16:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-16 13:54 ediff feature request: diffing line by line Karl Eichwalder
2002-03-16 16:27 ` Carlo Traverso
2002-03-16 17:43   ` Michael Kifer
2002-03-16 23:04     ` Alex Schroeder
2002-03-17  4:04       ` Karl Eichwalder
2002-03-17 15:40         ` Andreas Schwab
2002-03-17 16:26           ` Carlo Traverso [this message]
2002-03-17 18:37             ` Michael Kifer
2002-03-17 20:41               ` Carlo Traverso
2002-03-17 19:20 ` Richard Stallman

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