Lennart Borgman (gmail) wrote:
Kim F. Storm wrote:
"Lennart Borgman (gmail)" <[EMAIL PROTECTED]> writes:
Yes, I looked at the code but decided it takes me too long time at the
moment. Kim, is this easy for you?
Changes to redisplay are NEVER easy ...
I made a seemingly trivial change to fix one bug ... and two years
later someone finds a problem with it.
IMO, this is not the time to try to fix that.
Maybe not, but is not this more about positioning the cursor? The
characters are displayed correctly. Moving to char >= 2 works correctly.
But moving to char = 1 fails. Looks like it could be a corner case to
me, ie something that perhaps could be fixed without general impact.
BTW I wonder if I did not complain about this two years ago too? But at
that time I worked against a different solution since I wanted to get
something that worked then. This time I think I need this change to get
things working.
I looked a bit at the code. (First time I used tags, quite nice.) Is it
in set_point_both in intervals.c that the magic happens? It looks from
that code like internally an intangible property is used in cases like this.
I therefore compared using 'before-string with using
(put-text-property 1 (point) 'intangible t)
The cursor moves quite differently in those cases. Is there an
intangible property missing internally on line endings in
'before-string? (A wild guess of course, but the best I can do at the
moment.)
BTW I also noticed that using 'before-string like I did here also
influences undo intervals. Quite strange.
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