Re: Diff on Emacs

[Juri Linkov <juri@jurta.org>]

LEE Sau Dan <danlee@informatik.uni-freiburg.de> writes:
>>>>>> "Juri" == Juri Linkov <juri@jurta.org> writes:
>     Juri> Jasen <xx@yy.zz> writes:
>     >> There are many diff*.el and ediff*.el files in ../lisp/
>     >> directory so isn't diff a standard built-in function for emacs?
>     Juri> To compare two buffers you can use Emacs function
>     Juri> `compare-windows' from compare-w.el which now implements a
>     Juri> simple diff algorithm.  Instead of line by line output of
>     Juri> the 'diff' program, `compare-windows' provides differences
>     Juri> character by character which produces more fine-grained
>     Juri> results than the 'diff' program.
>
> M-x  ediff-buffers gives  you a  diff output  that can  be  refined to
> character-based diff.

This is not completely true.  Ediff refinements are word-based.
Although this is a big improvement over line-based diff output,
this is not the same thing as character-based `compare-windows'.

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