From: Richard Stallman <rms@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: text_property_stickiness
Date: Sun, 25 Jun 2006 11:33:48 -0400 [thread overview]
Message-ID: <E1FuWcO-0001dY-TN@fencepost.gnu.org> (raw)
In-Reply-To: <87r71ee1uq.fsf@stupidchicken.com> (message from Chong Yidong on Sat, 24 Jun 2006 16:27:09 -0400)
*** emacs/src/textprop.c.~1.147.~ 2006-05-17 13:33:46.000000000 -0400
--- emacs/src/textprop.c 2006-06-24 16:24:46.000000000 -0400
***************
*** 1787,1792 ****
--- 1787,1794 ----
/* PROP is rear-non-sticky. */
is_rear_sticky = 0;
}
+ else
+ return 0;
This would make text_property_stickiness return 0 when POS is before
BEGV. Does that give correct results in calls from find_field? I
doubt it.
Meanwhile, if POS is after ZV, Fget_text_property will get an error
in the following code, right?
/* Consider following character. */
front_sticky = Fget_text_property (pos, Qfront_sticky, buffer);
This problem really is tricky, for the reasons I explained.
It could be that we need to make sure find_field is never called
for positions outside BEGV..ZV. That may require changes in callers
at higher level, and changes in the specs of the field functions.
next prev parent reply other threads:[~2006-06-25 15:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-24 20:27 text_property_stickiness Chong Yidong
2006-06-25 15:33 ` Richard Stallman [this message]
2006-06-25 20:59 ` text_property_stickiness Chong Yidong
2006-06-26 4:33 ` text_property_stickiness Miles Bader
2006-06-26 17:50 ` text_property_stickiness Chong Yidong
2006-06-27 2:03 ` text_property_stickiness Miles Bader
2006-06-27 16:16 ` text_property_stickiness Richard Stallman
2006-06-28 0:04 ` text_property_stickiness Chong Yidong
2006-06-29 12:59 ` text_property_stickiness Richard Stallman
2006-06-27 10:34 ` text_property_stickiness Richard Stallman
2006-06-26 11:33 ` text_property_stickiness Richard Stallman
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