Re: bug#7351: 24.0.50; next-error no longer takes into account buffer modifications

[Ted Zlatanov]

On Thu, 11 Nov 2010 21:31:56 +0200 Paul Pogonyshev <pogonyshev@gmx.net> wrote: 

PP> Glenn Morris wrote:
>> Paul Pogonyshev wrote:
>> 
>> > I believe this used to work fine in past.
>> 
>> Could you give a release of Emacs in which this works?
>> 
>> I tried 21.4, 22.1, 22.2, 22.3, 23.1, and 23.2; and it didn't seem to
>> work in any of them.

PP> No.  I seem to recollect that at some point (certainly before 24.x
PP> development, maybe even before 23) I could fix a compilation error in
PP> a C file by adding/removing lines, and subsequent errors would still
PP> be found correctly, without any line offset.  Maybe it depends on
PP> actual error source, i.e. gcc vs. grep?  Then again, maybe I invented
PP> this whole story and my memory is failing...

PP> In the latter case, can this be requalified as a feature request?

compilation-mode and the other providers of `next-error' set it up
differently (see `compilation-next-error-function').  I know that `M-x
occur' will track occurrences through add/delete changes, for instance,
but it has access to the original buffer.  compilation-mode only has
access to line numbers at the time of the compilation.

Ted