vertical-motion is not correct, if cursor is on a composition.
Please try the following:
M-x view-hello-file
M-x goto-char 289
M-: (vertical-motion 1)
How about this patch:
Index: src/indent.c
===================================================================
RCS file: /cvsroot/emacs/emacs/src/indent.c,v
retrieving revision 1.186
diff -u -r1.186 indent.c
--- src/indent.c 26 Sep 2006 19:25:35 -0000 1.186
+++ src/indent.c 19 Nov 2006 14:47:47 -0000
@@ -2088,10 +2088,10 @@
it_start = IT_CHARPOS (it);
/* We expect the call to move_it_to, further down, to overshoot
- if the starting point is on an image, stretch glyph, or Lisp
- string. We won't need to backtrack in this situation, except
- for one corner case: when the Lisp string contains a
- newline. */
+ if the starting point is on an image, stretch glyph,
+ composition, or Lisp string. We won't need to backtrack in
+ this situation, except for one corner case: when the Lisp
+ string contains a newline. */
if (it.method == GET_FROM_STRING)
{
const char *s = SDATA (it.string);
@@ -2104,7 +2104,8 @@
}
else
it_overshoot_expected_p = (it.method == GET_FROM_IMAGE
- || it.method == GET_FROM_STRETCH);
+ || it.method == GET_FROM_STRETCH
+ || it.method == GET_FROM_COMPOSITION);
reseat_at_previous_visible_line_start (&it);
it.current_x = it.hpos = 0;
--
KOBAYASHI Yasuhiro <[EMAIL PROTECTED]>
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