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(internal_self_insert): When overwriting, use replace_range.

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This commit is contained in:
Richard M. Stallman 1997-07-15 19:22:53 +00:00
parent cda987f448
commit e744155a80
1 changed files with 29 additions and 10 deletions
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39
src/cmds.c
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@ -353,11 +353,13 @@ internal_self_insert (c, noautofill)
int hairy = 0;
Lisp_Object tem;
register enum syntaxcode synt;
Lisp_Object overwrite;
Lisp_Object overwrite, string;
/* Length of multi-byte form of C. */
int len;
/* Working buffer and pointer for multi-byte form of C. */
unsigned char workbuf[4], *str;
int number_to_delete = 0;
int spaces_to_insert = 0;
if (c >= 0200 && c <= 0377
&& ! NILP (current_buffer->enable_multibyte_characters))
@ -409,11 +411,12 @@ internal_self_insert (c, noautofill)
|| XFASTINT (current_buffer->tab_width) > 20
|| !(target_clm % XFASTINT (current_buffer->tab_width))))))
{
int pos = PT;
if (target_clm == 0)
del_range (PT, forward_point (1));
number_to_delete = forward_point (1) - PT;
else
{
int pos = PT;
/* The actual cursor position after the trial of moving
to column TARGET_CLM. It is greater than TARGET_CLM
if the TARGET_CLM is middle of multi-column
@ -422,15 +425,16 @@ internal_self_insert (c, noautofill)
int actual_clm
= XFASTINT (Fmove_to_column (make_number (target_clm), Qnil));
del_range (pos, PT);
number_to_delete = PT - pos;
if (actual_clm > target_clm)
{
/* We deleted too many columns. Let's fill columns
/* We will delete too many columns. Let's fill columns
by spaces so that the remaining text won't move. */
insert(" ", actual_clm - target_clm);
SET_PT (pos);
spaces_to_insert = actual_clm - target_clm;
}
}
SET_PT (pos);
hairy = 2;
}
hairy = 2;
@ -460,13 +464,29 @@ internal_self_insert (c, noautofill)
if (MODIFF != modiff)
hairy = 2;
}
if (number_to_delete)
{
string = make_string (str, len);
if (spaces_to_insert)
{
tem = Fmake_string (make_number (spaces_to_insert),
make_number (' '));
string = concat2 (tem, string);
}
replace_range (PT, PT + number_to_delete, string, 1, 1);
SET_PT (PT + XSTRING (string)->size);
}
else
insert_and_inherit (str, len);
if ((c == ' ' || c == '\n')
&& !noautofill
&& !NILP (current_buffer->auto_fill_function))
{
Lisp_Object tem;
insert_and_inherit (str, len);
if (c == '\n')
/* After inserting a newline, move to previous line and fill */
/* that. Must have the newline in place already so filling and */
@ -478,8 +498,6 @@ internal_self_insert (c, noautofill)
if (!NILP (tem))
hairy = 2;
}
else
insert_and_inherit (str, len);
#ifdef HAVE_FACES
/* If previous command specified a face to use, use it. */
@ -493,6 +511,7 @@ internal_self_insert (c, noautofill)
Vself_insert_face = Qnil;
}
#endif
synt = SYNTAX (c);
if ((synt == Sclose || synt == Smath)
&& !NILP (Vblink_paren_function) && INTERACTIVE