Commit 0f2e2a3b authored by Stefan Monnier's avatar Stefan Monnier
Browse files

(Fsubst_char_in_region): Redo the setup work after running

the before-change-functions since they may have altered the buffer.
parent 316a275a
2006-08-04 Stefan Monnier <monnier@iro.umontreal.ca>
* editfns.c (Fsubst_char_in_region): Redo the setup work after running
the before-change-functions since they may have altered the buffer.
2006-08-04 Ralf Angeli <angeli@caeruleus.net>
 
* w32fns.c (w32_createwindow): Handle -geometry command line option
......
......@@ -2691,6 +2691,10 @@ Both characters must have the same length of multi-byte form. */)
Lisp_Object start, end, fromchar, tochar, noundo;
{
register int pos, pos_byte, stop, i, len, end_byte;
/* Keep track of the first change in the buffer:
if 0 we haven't found it yet.
if < 0 we've found it and we've run the before-change-function.
if > 0 we've actually performed it and the value is its position. */
int changed = 0;
unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH];
unsigned char *p;
......@@ -2703,6 +2707,8 @@ Both characters must have the same length of multi-byte form. */)
int last_changed = 0;
int multibyte_p = !NILP (current_buffer->enable_multibyte_characters);
restart:
validate_region (&start, &end);
CHECK_NUMBER (fromchar);
CHECK_NUMBER (tochar);
......@@ -2740,7 +2746,7 @@ Both characters must have the same length of multi-byte form. */)
That's faster than getting rid of things,
and it prevents even the entry for a first change.
Also inhibit locking the file. */
if (!NILP (noundo))
if (!changed && !NILP (noundo))
{
record_unwind_protect (subst_char_in_region_unwind,
current_buffer->undo_list);
......@@ -2774,10 +2780,14 @@ Both characters must have the same length of multi-byte form. */)
&& (len == 2 || (p[2] == fromstr[2]
&& (len == 3 || p[3] == fromstr[3]))))))
{
if (! changed)
if (changed < 0)
/* We've already seen this and run the before-change-function;
this time we only need to record the actual position. */
changed = pos;
else if (!changed)
{
changed = pos;
modify_region (current_buffer, changed, XINT (end));
changed = -1;
modify_region (current_buffer, pos, XINT (end));
if (! NILP (noundo))
{
......@@ -2786,6 +2796,10 @@ Both characters must have the same length of multi-byte form. */)
if (MODIFF - 1 == current_buffer->auto_save_modified)
current_buffer->auto_save_modified++;
}
/* The before-change-function may have moved the gap
or even modified the buffer so we should start over. */
goto restart;
}
/* Take care of the case where the new character
......@@ -2838,7 +2852,7 @@ Both characters must have the same length of multi-byte form. */)
pos++;
}
if (changed)
if (changed > 0)
{
signal_after_change (changed,
last_changed - changed, last_changed - changed);
......
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