#include <config.h>
#include <setjmp.h>
+
+#include <intprops.h>
+
#include "lisp.h"
#include "intervals.h"
#include "buffer.h"
#endif
static void insert_from_string_1 (Lisp_Object string,
- EMACS_INT pos, EMACS_INT pos_byte,
- EMACS_INT nchars, EMACS_INT nbytes,
+ ptrdiff_t pos, ptrdiff_t pos_byte,
+ ptrdiff_t nchars, ptrdiff_t nbytes,
int inherit, int before_markers);
static void insert_from_buffer_1 (struct buffer *buf,
- EMACS_INT from, EMACS_INT nchars,
+ ptrdiff_t from, ptrdiff_t nchars,
int inherit);
-static void gap_left (EMACS_INT charpos, EMACS_INT bytepos, int newgap);
-static void gap_right (EMACS_INT charpos, EMACS_INT bytepos);
-static void adjust_markers_gap_motion (EMACS_INT from, EMACS_INT to,
- EMACS_INT amount);
-static void adjust_markers_for_insert (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte,
- int before_markers);
-static void adjust_markers_for_replace (EMACS_INT, EMACS_INT, EMACS_INT,
- EMACS_INT, EMACS_INT, EMACS_INT);
-static void adjust_point (EMACS_INT nchars, EMACS_INT nbytes);
-
-Lisp_Object Fcombine_after_change_execute (void);
+static void gap_left (ptrdiff_t charpos, ptrdiff_t bytepos, int newgap);
+static void gap_right (ptrdiff_t charpos, ptrdiff_t bytepos);
+
+static Lisp_Object Fcombine_after_change_execute (void);
/* List of elements of the form (BEG-UNCHANGED END-UNCHANGED CHANGE-AMOUNT)
describing changes which happened while combine_after_change_calls
END-UNCHANGED is the number of chars after the changed range,
and CHANGE-AMOUNT is the number of characters inserted by the change
(negative for a deletion). */
-Lisp_Object combine_after_change_list;
+static Lisp_Object combine_after_change_list;
/* Buffer which combine_after_change_list is about. */
-Lisp_Object combine_after_change_buffer;
+static Lisp_Object combine_after_change_buffer;
Lisp_Object Qinhibit_modification_hooks;
+
+static void signal_before_change (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
\f
#define CHECK_MARKERS() \
do \
Note that this can quit! */
void
-move_gap (EMACS_INT charpos)
+move_gap (ptrdiff_t charpos)
{
move_gap_both (charpos, charpos_to_bytepos (charpos));
}
Note that this can quit! */
void
-move_gap_both (EMACS_INT charpos, EMACS_INT bytepos)
+move_gap_both (ptrdiff_t charpos, ptrdiff_t bytepos)
{
if (bytepos < GPT_BYTE)
gap_left (charpos, bytepos, 0);
If NEWGAP is nonzero, then don't update beg_unchanged and end_unchanged. */
static void
-gap_left (EMACS_INT charpos, EMACS_INT bytepos, int newgap)
+gap_left (ptrdiff_t charpos, ptrdiff_t bytepos, int newgap)
{
register unsigned char *to, *from;
- register EMACS_INT i;
- EMACS_INT new_s1;
+ register ptrdiff_t i;
+ ptrdiff_t new_s1;
if (!newgap)
BUF_COMPUTE_UNCHANGED (current_buffer, charpos, GPT);
memmove (to, from, i);
}
- /* Adjust markers, and buffer data structure, to put the gap at BYTEPOS.
- BYTEPOS is where the loop above stopped, which may be what was specified
- or may be where a quit was detected. */
- adjust_markers_gap_motion (bytepos, GPT_BYTE, GAP_SIZE);
+ /* Adjust buffer data structure, to put the gap at BYTEPOS.
+ BYTEPOS is where the loop above stopped, which may be what
+ was specified or may be where a quit was detected. */
GPT_BYTE = bytepos;
GPT = charpos;
if (bytepos < charpos)
and CHARPOS is the corresponding char position. */
static void
-gap_right (EMACS_INT charpos, EMACS_INT bytepos)
+gap_right (ptrdiff_t charpos, ptrdiff_t bytepos)
{
register unsigned char *to, *from;
- register EMACS_INT i;
- EMACS_INT new_s1;
+ register ptrdiff_t i;
+ ptrdiff_t new_s1;
BUF_COMPUTE_UNCHANGED (current_buffer, charpos, GPT);
from += i, to += i;
}
- adjust_markers_gap_motion (GPT_BYTE + GAP_SIZE, bytepos + GAP_SIZE,
- - GAP_SIZE);
GPT = charpos;
GPT_BYTE = bytepos;
if (bytepos < charpos)
QUIT;
}
\f
-/* Add AMOUNT to the byte position of every marker in the current buffer
- whose current byte position is between FROM (exclusive) and TO (inclusive).
-
- Also, any markers past the outside of that interval, in the direction
- of adjustment, are first moved back to the near end of the interval
- and then adjusted by AMOUNT.
-
- When the latter adjustment is done, if AMOUNT is negative,
- we record the adjustment for undo. (This case happens only for
- deletion.)
-
- The markers' character positions are not altered,
- because gap motion does not affect character positions. */
-
-int adjust_markers_test;
-
-static void
-adjust_markers_gap_motion (EMACS_INT from, EMACS_INT to, EMACS_INT amount)
-{
- /* Now that a marker has a bytepos, not counting the gap,
- nothing needs to be done here. */
-#if 0
- Lisp_Object marker;
- register struct Lisp_Marker *m;
- register EMACS_INT mpos;
-
- marker = BUF_MARKERS (current_buffer);
-
- while (!NILP (marker))
- {
- m = XMARKER (marker);
- mpos = m->bytepos;
- if (amount > 0)
- {
- if (mpos > to && mpos < to + amount)
- {
- if (adjust_markers_test)
- abort ();
- mpos = to + amount;
- }
- }
- else
- {
- /* Here's the case where a marker is inside text being deleted.
- AMOUNT can be negative for gap motion, too,
- but then this range contains no markers. */
- if (mpos > from + amount && mpos <= from)
- {
- if (adjust_markers_test)
- abort ();
- mpos = from + amount;
- }
- }
- if (mpos > from && mpos <= to)
- mpos += amount;
- m->bufpos = mpos;
- marker = m->chain;
- }
-#endif
-}
-\f
/* Adjust all markers for a deletion
whose range in bytes is FROM_BYTE to TO_BYTE.
The range in charpos is FROM to TO.
or inside of the range being deleted. */
void
-adjust_markers_for_delete (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte)
+adjust_markers_for_delete (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte)
{
Lisp_Object marker;
register struct Lisp_Marker *m;
- register EMACS_INT charpos;
+ register ptrdiff_t charpos;
for (m = BUF_MARKERS (current_buffer); m; m = m->next)
{
or BEFORE_MARKERS is true. */
static void
-adjust_markers_for_insert (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte, int before_markers)
+adjust_markers_for_insert (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte, int before_markers)
{
struct Lisp_Marker *m;
int adjusted = 0;
- EMACS_INT nchars = to - from;
- EMACS_INT nbytes = to_byte - from_byte;
+ ptrdiff_t nchars = to - from;
+ ptrdiff_t nbytes = to_byte - from_byte;
for (m = BUF_MARKERS (current_buffer); m; m = m->next)
{
- disordered overlays in the slot `overlays_before' of current_buffer. */
if (adjusted)
{
- fix_start_end_in_overlays(from, to);
+ fix_start_end_in_overlays (from, to);
fix_overlays_before (current_buffer, from, to);
}
}
intervals. */
static void
-adjust_point (EMACS_INT nchars, EMACS_INT nbytes)
+adjust_point (ptrdiff_t nchars, ptrdiff_t nbytes)
{
SET_BUF_PT_BOTH (current_buffer, PT + nchars, PT_BYTE + nbytes);
/* In a single-byte buffer, the two positions must be equal. */
an insertion. */
static void
-adjust_markers_for_replace (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT old_chars, EMACS_INT old_bytes,
- EMACS_INT new_chars, EMACS_INT new_bytes)
+adjust_markers_for_replace (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t old_chars, ptrdiff_t old_bytes,
+ ptrdiff_t new_chars, ptrdiff_t new_bytes)
{
register struct Lisp_Marker *m;
- EMACS_INT prev_to_byte = from_byte + old_bytes;
- EMACS_INT diff_chars = new_chars - old_chars;
- EMACS_INT diff_bytes = new_bytes - old_bytes;
+ ptrdiff_t prev_to_byte = from_byte + old_bytes;
+ ptrdiff_t diff_chars = new_chars - old_chars;
+ ptrdiff_t diff_bytes = new_bytes - old_bytes;
for (m = BUF_MARKERS (current_buffer); m; m = m->next)
{
}
\f
+void
+buffer_overflow (void)
+{
+ error ("Maximum buffer size exceeded");
+}
+
/* Make the gap NBYTES_ADDED bytes longer. */
static void
-make_gap_larger (EMACS_INT nbytes_added)
+make_gap_larger (ptrdiff_t nbytes_added)
{
Lisp_Object tem;
- EMACS_INT real_gap_loc;
- EMACS_INT real_gap_loc_byte;
- EMACS_INT old_gap_size;
-
- /* If we have to get more space, get enough to last a while. */
- nbytes_added += 2000;
-
- { EMACS_INT total_size = Z_BYTE - BEG_BYTE + GAP_SIZE + nbytes_added;
- if (total_size < 0
- /* Don't allow a buffer size that won't fit in a Lisp integer. */
- || total_size != XINT (make_number (total_size))
- /* Don't allow a buffer size that won't fit in an int
- even if it will fit in a Lisp integer.
- That won't work because so many places still use `int'. */
- || total_size != (EMACS_INT) (int) total_size)
- error ("Buffer exceeds maximum size");
- }
+ ptrdiff_t real_gap_loc;
+ ptrdiff_t real_gap_loc_byte;
+ ptrdiff_t old_gap_size;
+ ptrdiff_t current_size = Z_BYTE - BEG_BYTE + GAP_SIZE;
+ enum { enough_for_a_while = 2000 };
+
+ if (BUF_BYTES_MAX - current_size < nbytes_added)
+ buffer_overflow ();
+
+ /* If we have to get more space, get enough to last a while;
+ but do not exceed the maximum buffer size. */
+ nbytes_added = min (nbytes_added + enough_for_a_while,
+ BUF_BYTES_MAX - current_size);
enlarge_buffer_text (current_buffer, nbytes_added);
Vinhibit_quit = tem;
}
+#if defined USE_MMAP_FOR_BUFFERS || defined REL_ALLOC || defined DOUG_LEA_MALLOC
/* Make the gap NBYTES_REMOVED bytes shorter. */
static void
-make_gap_smaller (EMACS_INT nbytes_removed)
+make_gap_smaller (ptrdiff_t nbytes_removed)
{
Lisp_Object tem;
- EMACS_INT real_gap_loc;
- EMACS_INT real_gap_loc_byte;
- EMACS_INT real_Z;
- EMACS_INT real_Z_byte;
- EMACS_INT real_beg_unchanged;
- EMACS_INT new_gap_size;
+ ptrdiff_t real_gap_loc;
+ ptrdiff_t real_gap_loc_byte;
+ ptrdiff_t real_Z;
+ ptrdiff_t real_Z_byte;
+ ptrdiff_t real_beg_unchanged;
+ ptrdiff_t new_gap_size;
/* Make sure the gap is at least 20 bytes. */
if (GAP_SIZE - nbytes_removed < 20)
Vinhibit_quit = tem;
}
+#endif /* USE_MMAP_FOR_BUFFERS || REL_ALLOC || DOUG_LEA_MALLOC */
+
void
-make_gap (EMACS_INT nbytes_added)
+make_gap (ptrdiff_t nbytes_added)
{
if (nbytes_added >= 0)
make_gap_larger (nbytes_added);
Return the number of bytes stored at TO_ADDR. */
-EMACS_INT
+ptrdiff_t
copy_text (const unsigned char *from_addr, unsigned char *to_addr,
- EMACS_INT nbytes, int from_multibyte, int to_multibyte)
+ ptrdiff_t nbytes, int from_multibyte, int to_multibyte)
{
if (from_multibyte == to_multibyte)
{
}
else if (from_multibyte)
{
- EMACS_INT nchars = 0;
- EMACS_INT bytes_left = nbytes;
+ ptrdiff_t nchars = 0;
+ ptrdiff_t bytes_left = nbytes;
while (bytes_left > 0)
{
return to_addr - initial_to_addr;
}
}
-
-/* Return the number of bytes it would take
- to convert some single-byte text to multibyte.
- The single-byte text consists of NBYTES bytes at PTR. */
-
-EMACS_INT
-count_size_as_multibyte (const unsigned char *ptr, EMACS_INT nbytes)
-{
- EMACS_INT i;
- EMACS_INT outgoing_nbytes = 0;
-
- for (i = 0; i < nbytes; i++)
- {
- unsigned int c = *ptr++;
-
- if (ASCII_CHAR_P (c))
- outgoing_nbytes++;
- else
- {
- c = BYTE8_TO_CHAR (c);
- outgoing_nbytes += CHAR_BYTES (c);
- }
- }
-
- return outgoing_nbytes;
-}
\f
/* Insert a string of specified length before point.
This function judges multibyteness based on
prepare_to_modify_buffer could relocate the text. */
void
-insert (const char *string, EMACS_INT nbytes)
+insert (const char *string, ptrdiff_t nbytes)
{
if (nbytes > 0)
{
- EMACS_INT len = chars_in_text ((unsigned char *) string, nbytes), opoint;
+ ptrdiff_t len = chars_in_text ((unsigned char *) string, nbytes), opoint;
insert_1_both (string, len, nbytes, 0, 1, 0);
opoint = PT - len;
signal_after_change (opoint, 0, len);
/* Likewise, but inherit text properties from neighboring characters. */
void
-insert_and_inherit (const char *string, EMACS_INT nbytes)
+insert_and_inherit (const char *string, ptrdiff_t nbytes)
{
if (nbytes > 0)
{
- EMACS_INT len = chars_in_text ((unsigned char *) string, nbytes), opoint;
+ ptrdiff_t len = chars_in_text ((unsigned char *) string, nbytes), opoint;
insert_1_both (string, len, nbytes, 1, 1, 0);
opoint = PT - len;
signal_after_change (opoint, 0, len);
since gc could happen and relocate it. */
void
-insert_before_markers (const char *string, EMACS_INT nbytes)
+insert_before_markers (const char *string, ptrdiff_t nbytes)
{
if (nbytes > 0)
{
- EMACS_INT len = chars_in_text ((unsigned char *) string, nbytes), opoint;
+ ptrdiff_t len = chars_in_text ((unsigned char *) string, nbytes), opoint;
insert_1_both (string, len, nbytes, 0, 1, 1);
opoint = PT - len;
signal_after_change (opoint, 0, len);
void
insert_before_markers_and_inherit (const char *string,
- EMACS_INT nbytes)
+ ptrdiff_t nbytes)
{
if (nbytes > 0)
{
- EMACS_INT len = chars_in_text ((unsigned char *) string, nbytes), opoint;
+ ptrdiff_t len = chars_in_text ((unsigned char *) string, nbytes), opoint;
insert_1_both (string, len, nbytes, 1, 1, 1);
opoint = PT - len;
signal_after_change (opoint, 0, len);
/* Subroutine used by the insert functions above. */
void
-insert_1 (const char *string, EMACS_INT nbytes,
+insert_1 (const char *string, ptrdiff_t nbytes,
int inherit, int prepare, int before_markers)
{
insert_1_both (string, chars_in_text ((unsigned char *) string, nbytes),
which combine in this way. Otherwise, return 0. */
int
-count_combining_before (const unsigned char *string, EMACS_INT length,
- EMACS_INT pos, EMACS_INT pos_byte)
+count_combining_before (const unsigned char *string, ptrdiff_t length,
+ ptrdiff_t pos, ptrdiff_t pos_byte)
{
int len, combining_bytes;
const unsigned char *p;
int
count_combining_after (const unsigned char *string,
- EMACS_INT length, EMACS_INT pos, EMACS_INT pos_byte)
+ ptrdiff_t length, ptrdiff_t pos, ptrdiff_t pos_byte)
{
- EMACS_INT opos_byte = pos_byte;
- EMACS_INT i;
- EMACS_INT bytes;
+ ptrdiff_t opos_byte = pos_byte;
+ ptrdiff_t i;
+ ptrdiff_t bytes;
unsigned char *bufp;
if (NILP (current_buffer->enable_multibyte_characters))
void
insert_1_both (const char *string,
- EMACS_INT nchars, EMACS_INT nbytes,
+ ptrdiff_t nchars, ptrdiff_t nbytes,
int inherit, int prepare, int before_markers)
{
if (nchars == 0)
without insert noticing. */
void
-insert_from_string (Lisp_Object string, EMACS_INT pos, EMACS_INT pos_byte,
- EMACS_INT length, EMACS_INT length_byte, int inherit)
+insert_from_string (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
+ ptrdiff_t length, ptrdiff_t length_byte, int inherit)
{
- EMACS_INT opoint = PT;
+ ptrdiff_t opoint = PT;
if (SCHARS (string) == 0)
return;
void
insert_from_string_before_markers (Lisp_Object string,
- EMACS_INT pos, EMACS_INT pos_byte,
- EMACS_INT length, EMACS_INT length_byte,
+ ptrdiff_t pos, ptrdiff_t pos_byte,
+ ptrdiff_t length, ptrdiff_t length_byte,
int inherit)
{
- EMACS_INT opoint = PT;
+ ptrdiff_t opoint = PT;
if (SCHARS (string) == 0)
return;
/* Subroutine of the insertion functions above. */
static void
-insert_from_string_1 (Lisp_Object string, EMACS_INT pos, EMACS_INT pos_byte,
- EMACS_INT nchars, EMACS_INT nbytes,
+insert_from_string_1 (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
+ ptrdiff_t nchars, ptrdiff_t nbytes,
int inherit, int before_markers)
{
struct gcpro gcpro1;
- EMACS_INT outgoing_nbytes = nbytes;
+ ptrdiff_t outgoing_nbytes = nbytes;
INTERVAL intervals;
/* Make OUTGOING_NBYTES describe the text
starting at GPT_ADDR. */
void
-insert_from_gap (EMACS_INT nchars, EMACS_INT nbytes)
+insert_from_gap (ptrdiff_t nchars, ptrdiff_t nbytes)
{
if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
nchars = nbytes;
void
insert_from_buffer (struct buffer *buf,
- EMACS_INT charpos, EMACS_INT nchars, int inherit)
+ ptrdiff_t charpos, ptrdiff_t nchars, int inherit)
{
- EMACS_INT opoint = PT;
+ ptrdiff_t opoint = PT;
insert_from_buffer_1 (buf, charpos, nchars, inherit);
signal_after_change (opoint, 0, PT - opoint);
static void
insert_from_buffer_1 (struct buffer *buf,
- EMACS_INT from, EMACS_INT nchars, int inherit)
+ ptrdiff_t from, ptrdiff_t nchars, int inherit)
{
- register Lisp_Object temp;
- EMACS_INT chunk, chunk_expanded;
- EMACS_INT from_byte = buf_charpos_to_bytepos (buf, from);
- EMACS_INT to_byte = buf_charpos_to_bytepos (buf, from + nchars);
- EMACS_INT incoming_nbytes = to_byte - from_byte;
- EMACS_INT outgoing_nbytes = incoming_nbytes;
+ ptrdiff_t chunk, chunk_expanded;
+ ptrdiff_t from_byte = buf_charpos_to_bytepos (buf, from);
+ ptrdiff_t to_byte = buf_charpos_to_bytepos (buf, from + nchars);
+ ptrdiff_t incoming_nbytes = to_byte - from_byte;
+ ptrdiff_t outgoing_nbytes = incoming_nbytes;
INTERVAL intervals;
/* Make OUTGOING_NBYTES describe the text
outgoing_nbytes = nchars;
else if (NILP (BVAR (buf, enable_multibyte_characters)))
{
- EMACS_INT outgoing_before_gap = 0;
- EMACS_INT outgoing_after_gap = 0;
+ ptrdiff_t outgoing_before_gap = 0;
+ ptrdiff_t outgoing_after_gap = 0;
if (from < BUF_GPT (buf))
{
outgoing_nbytes = outgoing_before_gap + outgoing_after_gap;
}
- /* Make sure point-max won't overflow after this insertion. */
- XSETINT (temp, outgoing_nbytes + Z);
- if (outgoing_nbytes + Z != XINT (temp))
- error ("Maximum buffer size exceeded");
-
/* Do this before moving and increasing the gap,
because the before-change hooks might move the gap
or make it smaller. */
PREV_TEXT nil means the new text was just inserted. */
-void
-adjust_after_replace (EMACS_INT from, EMACS_INT from_byte,
- Lisp_Object prev_text, EMACS_INT len, EMACS_INT len_byte)
+static void
+adjust_after_replace (ptrdiff_t from, ptrdiff_t from_byte,
+ Lisp_Object prev_text, ptrdiff_t len, ptrdiff_t len_byte)
{
- EMACS_INT nchars_del = 0, nbytes_del = 0;
+ ptrdiff_t nchars_del = 0, nbytes_del = 0;
#ifdef BYTE_COMBINING_DEBUG
if (count_combining_before (GPT_ADDR, len_byte, from, from_byte)
CHARS_MODIFF = MODIFF;
}
-/* Like adjust_after_replace, but doesn't require PREV_TEXT.
- This is for use when undo is not enabled in the current buffer. */
-
-void
-adjust_after_replace_noundo (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT nchars_del, EMACS_INT nbytes_del,
- EMACS_INT len, EMACS_INT len_byte)
-{
-#ifdef BYTE_COMBINING_DEBUG
- if (count_combining_before (GPT_ADDR, len_byte, from, from_byte)
- || count_combining_after (GPT_ADDR, len_byte, from, from_byte))
- abort ();
-#endif
-
- /* Update various buffer positions for the new text. */
- GAP_SIZE -= len_byte;
- ZV += len; Z+= len;
- ZV_BYTE += len_byte; Z_BYTE += len_byte;
- GPT += len; GPT_BYTE += len_byte;
- if (GAP_SIZE > 0) *(GPT_ADDR) = 0; /* Put an anchor. */
-
- if (nchars_del > 0)
- adjust_markers_for_replace (from, from_byte, nchars_del, nbytes_del,
- len, len_byte);
- else
- adjust_markers_for_insert (from, from_byte,
- from + len, from_byte + len_byte, 0);
-
- if (len > nchars_del)
- adjust_overlays_for_insert (from, len - nchars_del);
- else if (len < nchars_del)
- adjust_overlays_for_delete (from, nchars_del - len);
- if (BUF_INTERVALS (current_buffer) != 0)
- {
- offset_intervals (current_buffer, from, len - nchars_del);
- }
-
- if (from < PT)
- adjust_point (len - nchars_del, len_byte - nbytes_del);
-
- /* As byte combining will decrease Z, we must check this again. */
- if (Z - GPT < END_UNCHANGED)
- END_UNCHANGED = Z - GPT;
-
- CHECK_MARKERS ();
-
- if (len == 0)
- evaporate_overlays (from);
- MODIFF++;
- CHARS_MODIFF = MODIFF;
-}
-
/* Record undo information, adjust markers and position keepers for an
insertion of a text from FROM (FROM_BYTE) to TO (TO_BYTE). The
text already exists in the current buffer but character length (TO
- FROM) may be incorrect, the correct length is NEWLEN. */
void
-adjust_after_insert (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte, EMACS_INT newlen)
+adjust_after_insert (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte, ptrdiff_t newlen)
{
- EMACS_INT len = to - from, len_byte = to_byte - from_byte;
+ ptrdiff_t len = to - from, len_byte = to_byte - from_byte;
if (GPT != to)
move_gap_both (to, to_byte);
But if MARKERS is 0, don't relocate markers. */
void
-replace_range (EMACS_INT from, EMACS_INT to, Lisp_Object new,
+replace_range (ptrdiff_t from, ptrdiff_t to, Lisp_Object new,
int prepare, int inherit, int markers)
{
- EMACS_INT inschars = SCHARS (new);
- EMACS_INT insbytes = SBYTES (new);
- EMACS_INT from_byte, to_byte;
- EMACS_INT nbytes_del, nchars_del;
- register Lisp_Object temp;
+ ptrdiff_t inschars = SCHARS (new);
+ ptrdiff_t insbytes = SBYTES (new);
+ ptrdiff_t from_byte, to_byte;
+ ptrdiff_t nbytes_del, nchars_del;
struct gcpro gcpro1;
INTERVAL intervals;
- EMACS_INT outgoing_insbytes = insbytes;
+ ptrdiff_t outgoing_insbytes = insbytes;
Lisp_Object deletion;
CHECK_MARKERS ();
if (prepare)
{
- EMACS_INT range_length = to - from;
+ ptrdiff_t range_length = to - from;
prepare_to_modify_buffer (from, to, &from);
to = from + range_length;
}
outgoing_insbytes
= count_size_as_multibyte (SDATA (new), insbytes);
- /* Make sure point-max won't overflow after this insertion. */
- XSETINT (temp, Z_BYTE - nbytes_del + insbytes);
- if (Z_BYTE - nbytes_del + insbytes != XINT (temp))
- error ("Maximum buffer size exceeded");
-
GCPRO1 (new);
/* Make sure the gap is somewhere in or next to what we are deleting. */
if (Z - GPT < END_UNCHANGED)
END_UNCHANGED = Z - GPT;
- if (GAP_SIZE < insbytes)
- make_gap (insbytes - GAP_SIZE);
+ if (GAP_SIZE < outgoing_insbytes)
+ make_gap (outgoing_insbytes - GAP_SIZE);
/* Copy the string text into the buffer, perhaps converting
between single-byte and multibyte. */
prepare_to_modify_buffer and never call signal_after_change. */
void
-replace_range_2 (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte,
- const char *ins, EMACS_INT inschars, EMACS_INT insbytes,
+replace_range_2 (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte,
+ const char *ins, ptrdiff_t inschars, ptrdiff_t insbytes,
int markers)
{
- EMACS_INT nbytes_del, nchars_del;
- Lisp_Object temp;
+ ptrdiff_t nbytes_del, nchars_del;
CHECK_MARKERS ();
if (nbytes_del <= 0 && insbytes == 0)
return;
- /* Make sure point-max won't overflow after this insertion. */
- XSETINT (temp, Z_BYTE - nbytes_del + insbytes);
- if (Z_BYTE - nbytes_del + insbytes != XINT (temp))
- error ("Maximum buffer size exceeded");
-
/* Make sure the gap is somewhere in or next to what we are deleting. */
if (from > GPT)
gap_right (from, from_byte);
If TO comes before FROM, we delete nothing. */
void
-del_range (EMACS_INT from, EMACS_INT to)
+del_range (ptrdiff_t from, ptrdiff_t to)
{
del_range_1 (from, to, 1, 0);
}
RET_STRING says to return the deleted text. */
Lisp_Object
-del_range_1 (EMACS_INT from, EMACS_INT to, int prepare, int ret_string)
+del_range_1 (ptrdiff_t from, ptrdiff_t to, int prepare, int ret_string)
{
- EMACS_INT from_byte, to_byte;
+ ptrdiff_t from_byte, to_byte;
Lisp_Object deletion;
struct gcpro gcpro1;
if (prepare)
{
- EMACS_INT range_length = to - from;
+ ptrdiff_t range_length = to - from;
prepare_to_modify_buffer (from, to, &from);
to = min (ZV, from + range_length);
}
to_byte = CHAR_TO_BYTE (to);
deletion = del_range_2 (from, from_byte, to, to_byte, ret_string);
- GCPRO1(deletion);
+ GCPRO1 (deletion);
signal_after_change (from, to - from, 0);
update_compositions (from, from, CHECK_HEAD);
UNGCPRO;
/* Like del_range_1 but args are byte positions, not char positions. */
void
-del_range_byte (EMACS_INT from_byte, EMACS_INT to_byte, int prepare)
+del_range_byte (ptrdiff_t from_byte, ptrdiff_t to_byte, int prepare)
{
- EMACS_INT from, to;
+ ptrdiff_t from, to;
/* Make args be valid */
if (from_byte < BEGV_BYTE)
if (prepare)
{
- EMACS_INT old_from = from, old_to = Z - to;
- EMACS_INT range_length = to - from;
+ ptrdiff_t old_from = from, old_to = Z - to;
+ ptrdiff_t range_length = to - from;
prepare_to_modify_buffer (from, to, &from);
to = from + range_length;
and bytepos. */
void
-del_range_both (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte, int prepare)
+del_range_both (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte, int prepare)
{
/* Make args be valid */
if (from_byte < BEGV_BYTE)
if (prepare)
{
- EMACS_INT old_from = from, old_to = Z - to;
- EMACS_INT range_length = to - from;
+ ptrdiff_t old_from = from, old_to = Z - to;
+ ptrdiff_t range_length = to - from;
prepare_to_modify_buffer (from, to, &from);
to = from + range_length;
If RET_STRING is true, the deleted area is returned as a string. */
Lisp_Object
-del_range_2 (EMACS_INT from, EMACS_INT from_byte,
- EMACS_INT to, EMACS_INT to_byte, int ret_string)
+del_range_2 (ptrdiff_t from, ptrdiff_t from_byte,
+ ptrdiff_t to, ptrdiff_t to_byte, int ret_string)
{
- register EMACS_INT nbytes_del, nchars_del;
+ register ptrdiff_t nbytes_del, nchars_del;
Lisp_Object deletion;
CHECK_MARKERS ();
Otherwise set CHARS_MODIFF to the new value of MODIFF. */
void
-modify_region (struct buffer *buffer, EMACS_INT start, EMACS_INT end,
+modify_region (struct buffer *buffer, ptrdiff_t start, ptrdiff_t end,
int preserve_chars_modiff)
{
struct buffer *old_buffer = current_buffer;
by holding its value temporarily in a marker. */
void
-prepare_to_modify_buffer (EMACS_INT start, EMACS_INT end,
- EMACS_INT *preserve_ptr)
+prepare_to_modify_buffer (ptrdiff_t start, ptrdiff_t end,
+ ptrdiff_t *preserve_ptr)
{
struct buffer *base_buffer;
: (!NILP (Vselect_active_regions)
&& !NILP (Vtransient_mark_mode))))
{
- EMACS_INT b = XMARKER (BVAR (current_buffer, mark))->charpos;
- EMACS_INT e = PT;
+ ptrdiff_t b = XMARKER (BVAR (current_buffer, mark))->charpos;
+ ptrdiff_t e = PT;
if (b < e)
Vsaved_region_selection = make_buffer_string (b, e, 0);
else if (b > e)
If PRESERVE_PTR is nonzero, we relocate *PRESERVE_PTR
by holding its value temporarily in a marker. */
-void
-signal_before_change (EMACS_INT start_int, EMACS_INT end_int,
- EMACS_INT *preserve_ptr)
+static void
+signal_before_change (ptrdiff_t start_int, ptrdiff_t end_int,
+ ptrdiff_t *preserve_ptr)
{
Lisp_Object start, end;
Lisp_Object start_marker, end_marker;
Lisp_Object preserve_marker;
struct gcpro gcpro1, gcpro2, gcpro3;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
if (inhibit_modification_hooks)
return;
specbind (Qinhibit_modification_hooks, Qt);
- /* If buffer is unmodified, run a special hook for that case. */
+ /* If buffer is unmodified, run a special hook for that case. The
+ check for Vfirst_change_hook is just a minor optimization. */
if (SAVE_MODIFF >= MODIFF
- && !NILP (Vfirst_change_hook)
- && !NILP (Vrun_hooks))
+ && !NILP (Vfirst_change_hook))
{
PRESERVE_VALUE;
PRESERVE_START_END;
- call1 (Vrun_hooks, Qfirst_change_hook);
+ Frun_hooks (1, &Qfirst_change_hook);
}
/* Now run the before-change-functions if any. */
after the change. */
void
-signal_after_change (EMACS_INT charpos, EMACS_INT lendel, EMACS_INT lenins)
+signal_after_change (ptrdiff_t charpos, ptrdiff_t lendel, ptrdiff_t lenins)
{
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
if (inhibit_modification_hooks)
return;
doc: /* This function is for use internally in `combine-after-change-calls'. */)
(void)
{
- int count = SPECPDL_INDEX ();
- EMACS_INT beg, end, change;
- EMACS_INT begpos, endpos;
+ ptrdiff_t count = SPECPDL_INDEX ();
+ ptrdiff_t beg, end, change;
+ ptrdiff_t begpos, endpos;
Lisp_Object tail;
if (NILP (combine_after_change_list))
tail = XCDR (tail))
{
Lisp_Object elt;
- EMACS_INT thisbeg, thisend, thischange;
+ ptrdiff_t thisbeg, thisend, thischange;
/* Extract the info from the next element. */
elt = XCAR (tail);
This affects `before-change-functions' and `after-change-functions',
as well as hooks attached to text properties and overlays. */);
inhibit_modification_hooks = 0;
- Qinhibit_modification_hooks = intern_c_string ("inhibit-modification-hooks");
- staticpro (&Qinhibit_modification_hooks);
+ DEFSYM (Qinhibit_modification_hooks, "inhibit-modification-hooks");
defsubr (&Scombine_after_change_execute);
}