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(redisplay_window): Don't use window->start

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if it is out of range of BEGV/ZV.
This commit is contained in:
Richard M. Stallman 1998-05-19 22:34:36 +00:00
parent f6f8363598
commit 81d2de9b9c
1 changed files with 3 additions and 2 deletions
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5
src/xdisp.c
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@ -1897,7 +1897,8 @@ redisplay_window (window, just_this_one, preserve_echo_area)
/* If someone specified a new starting point but did not insist,
check whether it can be used. */
if (!NILP (w->optional_new_start))
if (!NILP (w->optional_new_start)
&& startp >= BEGV && startp <= ZV)
{
w->optional_new_start = Qnil;
/* Check whether this start pos is usable given where point is. */
@ -3135,7 +3136,7 @@ pos_tab_offset (w, pos, pos_byte)
return col;
}
/* Display one line of window W, starting at char position START in W's buffer.
START_BYTE is the corresponding byte position.