Some things in set last_known_column_point to -1
to mark the memorized value as invalid. */
-static double last_known_column;
+static EMACS_INT last_known_column;
/* Value of point when current_column was called. */
static int last_known_column_modified;
-static double current_column_1 (void);
-static double position_indentation (int);
+static EMACS_INT current_column_1 (void);
+static EMACS_INT position_indentation (ptrdiff_t);
/* Cache of beginning of line found by the last call of
current_column. */
{
Lisp_Object thisbuf;
- thisbuf = current_buffer->display_table;
+ thisbuf = BVAR (current_buffer, display_table);
if (DISP_TABLE_P (thisbuf))
return XCHAR_TABLE (thisbuf);
if (DISP_TABLE_P (Vstandard_display_table))
/* Everything can be handled by the display table, if it's
present and the element is right. */
if (dp && (elt = DISP_CHAR_VECTOR (dp, c), VECTORP (elt)))
- return XVECTOR (elt)->size;
+ return ASIZE (elt);
/* Some characters are special. */
if (c == '\n' || c == '\t' || c == '\015')
{
int i;
- if (widthtab->size != 256)
+ if (widthtab->header.size != 256)
abort ();
for (i = 0; i < 256; i++)
int i;
struct Lisp_Vector *widthtab;
- if (!VECTORP (buf->width_table))
- buf->width_table = Fmake_vector (make_number (256), make_number (0));
- widthtab = XVECTOR (buf->width_table);
- if (widthtab->size != 256)
+ if (!VECTORP (BVAR (buf, width_table)))
+ BVAR (buf, width_table) = Fmake_vector (make_number (256), make_number (0));
+ widthtab = XVECTOR (BVAR (buf, width_table));
+ if (widthtab->header.size != 256)
abort ();
for (i = 0; i < 256; i++)
static void
width_run_cache_on_off (void)
{
- if (NILP (current_buffer->cache_long_line_scans)
+ if (NILP (BVAR (current_buffer, cache_long_line_scans))
/* And, for the moment, this feature doesn't work on multibyte
characters. */
- || !NILP (current_buffer->enable_multibyte_characters))
+ || !NILP (BVAR (current_buffer, enable_multibyte_characters)))
{
/* It should be off. */
if (current_buffer->width_run_cache)
{
free_region_cache (current_buffer->width_run_cache);
current_buffer->width_run_cache = 0;
- current_buffer->width_table = Qnil;
+ BVAR (current_buffer, width_table) = Qnil;
}
}
else
DP is a display table or NULL.
- This macro is used in current_column_1, Fmove_to_column, and
+ This macro is used in scan_for_column and in
compute_motion. */
-#define MULTIBYTE_BYTES_WIDTH(p, dp) \
+#define MULTIBYTE_BYTES_WIDTH(p, dp, bytes, width) \
do { \
- int c; \
+ int ch; \
\
- wide_column = 0; \
- c = STRING_CHAR_AND_LENGTH (p, bytes); \
+ ch = STRING_CHAR_AND_LENGTH (p, bytes); \
if (BYTES_BY_CHAR_HEAD (*p) != bytes) \
width = bytes * 4; \
else \
{ \
- if (dp != 0 && VECTORP (DISP_CHAR_VECTOR (dp, c))) \
- width = XVECTOR (DISP_CHAR_VECTOR (dp, c))->size; \
+ if (dp != 0 && VECTORP (DISP_CHAR_VECTOR (dp, ch))) \
+ width = sanitize_char_width (ASIZE (DISP_CHAR_VECTOR (dp, ch))); \
else \
- width = CHAR_WIDTH (c); \
- if (width > 1) \
- wide_column = width; \
+ width = CHAR_WIDTH (ch); \
} \
} while (0)
(void)
{
Lisp_Object temp;
- XSETFASTINT (temp, (int) current_column ()); /* iftc */
+ XSETFASTINT (temp, current_column ());
return temp;
}
last_known_column_point = 0;
}
-double
+EMACS_INT
current_column (void)
{
- register int col;
+ register EMACS_INT col;
register unsigned char *ptr, *stop;
register int tab_seen;
- int post_tab;
+ EMACS_INT post_tab;
register int c;
- register int tab_width = XINT (current_buffer->tab_width);
- int ctl_arrow = !NILP (current_buffer->ctl_arrow);
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
+ int ctl_arrow = !NILP (BVAR (current_buffer, ctl_arrow));
register struct Lisp_Char_Table *dp = buffer_display_table ();
if (PT == last_known_column_point
else
stop = GAP_END_ADDR;
- if (tab_width <= 0 || tab_width > 1000)
- tab_width = 8;
-
col = 0, tab_seen = 0, post_tab = 0;
while (1)
col++;
else if (c == '\n'
|| (c == '\r'
- && EQ (current_buffer->selective_display, Qt)))
+ && EQ (BVAR (current_buffer, selective_display), Qt)))
{
ptr++;
goto start_of_line_found;
if (CONSP (val = get_char_property_and_overlay
(make_number (pos), Qdisplay, Qnil, &overlay))
&& EQ (Qspace, XCAR (val)))
- { /* FIXME: Use calc_pixel_width_or_height, as in term.c. */
+ { /* FIXME: Use calc_pixel_width_or_height. */
Lisp_Object plist = XCDR (val), prop;
int width = -1;
static void
scan_for_column (EMACS_INT *endpos, EMACS_INT *goalcol, EMACS_INT *prevcol)
{
- register EMACS_INT tab_width = XINT (current_buffer->tab_width);
- register int ctl_arrow = !NILP (current_buffer->ctl_arrow);
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
+ register int ctl_arrow = !NILP (BVAR (current_buffer, ctl_arrow));
register struct Lisp_Char_Table *dp = buffer_display_table ();
- int multibyte = !NILP (current_buffer->enable_multibyte_characters);
+ int multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters));
struct composition_it cmp_it;
Lisp_Object window;
struct window *w;
window = Fget_buffer_window (Fcurrent_buffer (), Qnil);
w = ! NILP (window) ? XWINDOW (window) : NULL;
- if (tab_width <= 0 || tab_width > 1000) tab_width = 8;
memset (&cmp_it, 0, sizeof cmp_it);
cmp_it.id = -1;
composition_compute_stop_pos (&cmp_it, scan, scan_byte, end, Qnil);
prev_col = col;
{ /* Check display property. */
- EMACS_INT end;
- int width = check_display_width (scan, col, &end);
+ EMACS_INT endp;
+ int width = check_display_width (scan, col, &endp);
if (width >= 0)
{
col += width;
- if (end > scan) /* Avoid infinite loops with 0-width overlays. */
+ if (endp > scan) /* Avoid infinite loops with 0-width overlays. */
{
- scan = end; scan_byte = charpos_to_bytepos (scan);
+ scan = endp; scan_byte = charpos_to_bytepos (scan);
continue;
}
}
if (c == '\n')
goto endloop;
- if (c == '\r' && EQ (current_buffer->selective_display, Qt))
+ if (c == '\r' && EQ (BVAR (current_buffer, selective_display), Qt))
goto endloop;
if (c == '\t')
{
if (c == '\n')
goto endloop;
- if (c == '\r' && EQ (current_buffer->selective_display, Qt))
+ if (c == '\r' && EQ (BVAR (current_buffer, selective_display), Qt))
goto endloop;
if (c == '\t')
{
{
/* Start of multi-byte form. */
unsigned char *ptr;
- int bytes, width, wide_column;
+ int bytes, width;
ptr = BYTE_POS_ADDR (scan_byte);
- MULTIBYTE_BYTES_WIDTH (ptr, dp);
+ MULTIBYTE_BYTES_WIDTH (ptr, dp, bytes, width);
/* Subtract one to compensate for the increment
that is going to happen below. */
scan_byte += bytes - 1;
This function handles characters that are invisible
due to text properties or overlays. */
-static double
+static EMACS_INT
current_column_1 (void)
{
EMACS_INT col = MOST_POSITIVE_FIXNUM;
If END is nil, that stands for the end of STRING. */
static double
-string_display_width (string, beg, end)
- Lisp_Object string, beg, end;
+string_display_width (Lisp_Object string, Lisp_Object beg, Lisp_Object end)
{
register int col;
register unsigned char *ptr, *stop;
register int tab_seen;
int post_tab;
register int c;
- register int tab_width = XINT (current_buffer->tab_width);
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
int ctl_arrow = !NILP (current_buffer->ctl_arrow);
register struct Lisp_Char_Table *dp = buffer_display_table ();
int b, e;
going backwards from point. */
stop = SDATA (string) + b;
- if (tab_width <= 0 || tab_width > 1000) tab_width = 8;
-
col = 0, tab_seen = 0, post_tab = 0;
while (1)
c = *--ptr;
if (dp != 0 && VECTORP (DISP_CHAR_VECTOR (dp, c)))
- col += XVECTOR (DISP_CHAR_VECTOR (dp, c))->size;
+ col += ASIZE (DISP_CHAR_VECTOR (dp, c));
else if (c >= 040 && c < 0177)
col++;
else if (c == '\n')
The return value is COLUMN. */)
(Lisp_Object column, Lisp_Object minimum)
{
- int mincol;
- register int fromcol;
- register int tab_width = XINT (current_buffer->tab_width);
+ EMACS_INT mincol;
+ register EMACS_INT fromcol;
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
CHECK_NUMBER (column);
if (NILP (minimum))
if (fromcol == mincol)
return make_number (mincol);
- if (tab_width <= 0 || tab_width > 1000) tab_width = 8;
-
if (indent_tabs_mode)
{
Lisp_Object n;
}
\f
-static double position_indentation (int);
-
DEFUN ("current-indentation", Fcurrent_indentation, Scurrent_indentation,
0, 0, 0,
doc: /* Return the indentation of the current line.
scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, -1, 1);
- XSETFASTINT (val, (int) position_indentation (PT_BYTE)); /* iftc */
+ XSETFASTINT (val, position_indentation (PT_BYTE));
SET_PT_BOTH (opoint, opoint_byte);
return val;
}
-static double
-position_indentation (register int pos_byte)
+static EMACS_INT
+position_indentation (ptrdiff_t pos_byte)
{
register EMACS_INT column = 0;
- register EMACS_INT tab_width = XINT (current_buffer->tab_width);
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
register unsigned char *p;
register unsigned char *stop;
unsigned char *start;
EMACS_INT next_boundary_byte = pos_byte;
EMACS_INT ceiling = next_boundary_byte;
- if (tab_width <= 0 || tab_width > 1000) tab_width = 8;
-
p = BYTE_POS_ADDR (pos_byte);
/* STOP records the value of P at which we will need
to think about the gap, or about invisible text,
switch (*p++)
{
case 0240:
- if (! NILP (current_buffer->enable_multibyte_characters))
+ if (! NILP (BVAR (current_buffer, enable_multibyte_characters)))
return column;
case ' ':
column++;
break;
default:
if (ASCII_BYTE_P (p[-1])
- || NILP (current_buffer->enable_multibyte_characters))
+ || NILP (BVAR (current_buffer, enable_multibyte_characters)))
return column;
{
int c;
preceding line. */
int
-indented_beyond_p (EMACS_INT pos, EMACS_INT pos_byte, double column)
+indented_beyond_p (EMACS_INT pos, EMACS_INT pos_byte, EMACS_INT column)
{
- double val;
+ EMACS_INT val;
EMACS_INT opoint = PT, opoint_byte = PT_BYTE;
SET_PT_BOTH (pos, pos_byte);
val = position_indentation (PT_BYTE);
SET_PT_BOTH (opoint, opoint_byte);
- return val >= column; /* hmm, float comparison */
+ return val >= column;
}
\f
DEFUN ("move-to-column", Fmove_to_column, Smove_to_column, 1, 2, "p",
\f
/* compute_motion: compute buffer posn given screen posn and vice versa */
-struct position val_compute_motion;
+static struct position val_compute_motion;
/* Scan the current buffer forward from offset FROM, pretending that
this is at line FROMVPOS, column FROMHPOS, until reaching buffer
WINDOW_HAS_VERTICAL_SCROLL_BAR (window)
and frame_cols = FRAME_COLS (XFRAME (window->frame))
- Or you can let window_box_text_cols do this all for you, and write:
- window_box_text_cols (w) - 1
+ Or you can let window_body_cols do this all for you, and write:
+ window_body_cols (w) - 1
The `-1' accounts for the continuation-line backslashes; the rest
accounts for window borders if the window is split horizontally, and
register EMACS_INT pos;
EMACS_INT pos_byte;
register int c = 0;
- register EMACS_INT tab_width = XFASTINT (current_buffer->tab_width);
- register int ctl_arrow = !NILP (current_buffer->ctl_arrow);
+ int tab_width = SANE_TAB_WIDTH (current_buffer);
+ register int ctl_arrow = !NILP (BVAR (current_buffer, ctl_arrow));
register struct Lisp_Char_Table *dp = window_display_table (win);
- int selective
- = (INTEGERP (current_buffer->selective_display)
- ? XINT (current_buffer->selective_display)
- : !NILP (current_buffer->selective_display) ? -1 : 0);
+ EMACS_INT selective
+ = (INTEGERP (BVAR (current_buffer, selective_display))
+ ? XINT (BVAR (current_buffer, selective_display))
+ : !NILP (BVAR (current_buffer, selective_display)) ? -1 : 0);
int selective_rlen
= (selective && dp && VECTORP (DISP_INVIS_VECTOR (dp))
- ? XVECTOR (DISP_INVIS_VECTOR (dp))->size : 0);
+ ? ASIZE (DISP_INVIS_VECTOR (dp)) : 0);
/* The next location where the `invisible' property changes, or an
overlay starts or ends. */
EMACS_INT next_boundary = from;
EMACS_INT next_width_run = from;
Lisp_Object window;
- int multibyte = !NILP (current_buffer->enable_multibyte_characters);
+ int multibyte = !NILP (BVAR (current_buffer, enable_multibyte_characters));
/* If previous char scanned was a wide character,
this is the column where it ended. Otherwise, this is 0. */
EMACS_INT wide_column_end_hpos = 0;
width_run_cache_on_off ();
if (dp == buffer_display_table ())
- width_table = (VECTORP (current_buffer->width_table)
- ? XVECTOR (current_buffer->width_table)->contents
+ width_table = (VECTORP (BVAR (current_buffer, width_table))
+ ? XVECTOR (BVAR (current_buffer, width_table))->contents
: 0);
else
/* If the window has its own display table, we can't use the width
run cache, because that's based on the buffer's display table. */
width_table = 0;
- if (tab_width <= 0 || tab_width > 1000)
- tab_width = 8;
-
/* Negative width means use all available text columns. */
if (width < 0)
{
- width = window_box_text_cols (win);
+ width = window_body_cols (win);
/* We must make room for continuation marks if we don't have fringes. */
#ifdef HAVE_WINDOW_SYSTEM
if (!FRAME_WINDOW_P (XFRAME (win->frame)))
unsigned char *ovstr;
EMACS_INT ovlen = overlay_strings (pos, win, &ovstr);
hpos += ((multibyte && ovlen > 0)
- ? strwidth (ovstr, ovlen) : ovlen);
+ ? strwidth ((char *) ovstr, ovlen) : ovlen);
}
did_motion = 0;
}
if (hscroll || truncate
- || !NILP (current_buffer->truncate_lines))
+ || !NILP (BVAR (current_buffer, truncate_lines)))
{
/* Truncating: skip to newline, unless we are already past
TO (we need to go back below). */
the text character-by-character. */
if (current_buffer->width_run_cache && pos >= next_width_run)
{
- EMACS_INT run_end;
+ ptrdiff_t run_end;
int common_width
= region_cache_forward (current_buffer,
current_buffer->width_run_cache,
n = 1;
}
- for (i = n - 1; i >= 0; --i)
+ for (i = 0; i < n; ++i)
{
if (VECTORP (charvec))
{
else if (c == '\n')
{
if (selective > 0
- && indented_beyond_p (pos, pos_byte,
- (double) selective)) /* iftc */
+ && indented_beyond_p (pos, pos_byte, selective))
{
/* If (pos == to), we don't have to take care of
selective display. */
}
while (pos < to
&& indented_beyond_p (pos, pos_byte,
- (double) selective)); /* iftc */
+ selective));
/* Allow for the " ..." that is displayed for them. */
if (selective_rlen)
{
{
/* Start of multi-byte form. */
unsigned char *ptr;
- int bytes, width, wide_column;
+ int mb_bytes, mb_width;
pos_byte--; /* rewind POS_BYTE */
ptr = BYTE_POS_ADDR (pos_byte);
- MULTIBYTE_BYTES_WIDTH (ptr, dp);
- pos_byte += bytes;
- if (wide_column)
- wide_column_end_hpos = hpos + wide_column;
- hpos += width;
+ MULTIBYTE_BYTES_WIDTH (ptr, dp, mb_bytes, mb_width);
+ pos_byte += mb_bytes;
+ if (mb_width > 1 && BYTES_BY_CHAR_HEAD (*ptr) == mb_bytes)
+ wide_column_end_hpos = hpos + mb_width;
+ hpos += mb_width;
}
else if (VECTORP (charvec))
++hpos;
val_compute_motion.prevhpos = contin_hpos;
else
val_compute_motion.prevhpos = prev_hpos;
- /* We alalways handle all of them here; none of them remain to do. */
+ /* We always handle all of them here; none of them remain to do. */
val_compute_motion.ovstring_chars_done = 0;
/* Nonzero if have just continued a line */
struct window *w;
Lisp_Object bufpos, hpos, vpos, prevhpos;
struct position *pos;
- int hscroll, tab_offset;
+ EMACS_INT hscroll, tab_offset;
CHECK_NUMBER_COERCE_MARKER (from);
CHECK_CONS (frompos);
? window_internal_height (w)
: XINT (XCDR (topos))),
(NILP (topos)
- ? (window_box_text_cols (w)
+ ? (window_body_cols (w)
- (
#ifdef HAVE_WINDOW_SYSTEM
FRAME_WINDOW_P (XFRAME (w->frame)) ? 0 :
\f
/* Fvertical_motion and vmotion */
-struct position val_vmotion;
+static struct position val_vmotion;
struct position *
vmotion (register EMACS_INT from, register EMACS_INT vtarget, struct window *w)
register EMACS_INT first;
EMACS_INT from_byte;
EMACS_INT lmargin = hscroll > 0 ? 1 - hscroll : 0;
- int selective
- = (INTEGERP (current_buffer->selective_display)
- ? XINT (current_buffer->selective_display)
- : !NILP (current_buffer->selective_display) ? -1 : 0);
+ EMACS_INT selective
+ = (INTEGERP (BVAR (current_buffer, selective_display))
+ ? XINT (BVAR (current_buffer, selective_display))
+ : !NILP (BVAR (current_buffer, selective_display)) ? -1 : 0);
Lisp_Object window;
EMACS_INT start_hpos = 0;
int did_motion;
&& ((selective > 0
&& indented_beyond_p (prevline,
CHAR_TO_BYTE (prevline),
- (double) selective)) /* iftc */
+ selective))
/* Watch out for newlines with `invisible' property.
When moving upward, check the newline before. */
|| (propval = Fget_char_property (make_number (prevline - 1),
&& ((selective > 0
&& indented_beyond_p (prevline,
CHAR_TO_BYTE (prevline),
- (double) selective)) /* iftc */
+ selective))
/* Watch out for newlines with `invisible' property.
When moving downward, check the newline after. */
|| (propval = Fget_char_property (make_number (prevline),
struct text_pos pt;
struct window *w;
Lisp_Object old_buffer;
- struct gcpro gcpro1;
+ EMACS_INT old_charpos IF_LINT (= 0), old_bytepos IF_LINT (= 0);
+ struct gcpro gcpro1, gcpro2, gcpro3;
Lisp_Object lcols = Qnil;
- double cols;
+ double cols IF_LINT (= 0);
+ void *itdata = NULL;
/* Allow LINES to be of the form (HPOS . VPOS) aka (COLUMNS . LINES). */
if (CONSP (lines) && (NUMBERP (XCAR (lines))))
w = XWINDOW (window);
old_buffer = Qnil;
- GCPRO1 (old_buffer);
+ GCPRO3 (old_buffer, old_charpos, old_bytepos);
if (XBUFFER (w->buffer) != current_buffer)
{
/* Set the window's buffer temporarily to the current buffer. */
old_buffer = w->buffer;
+ old_charpos = XMARKER (w->pointm)->charpos;
+ old_bytepos = XMARKER (w->pointm)->bytepos;
XSETBUFFER (w->buffer, current_buffer);
+ set_marker_both
+ (w->pointm, w->buffer, BUF_PT (current_buffer), BUF_PT_BYTE (current_buffer));
}
if (noninteractive)
}
else
{
- int it_start, first_x, it_overshoot_expected;
+ EMACS_INT it_start;
+ int first_x, it_overshoot_count = 0;
+ int overshoot_handled = 0;
+ itdata = bidi_shelve_cache ();
SET_TEXT_POS (pt, PT, PT_BYTE);
start_display (&it, w, pt);
first_x = it.first_visible_x;
it_start = IT_CHARPOS (it);
/* See comments below for why we calculate this. */
- if (XINT (lines) > 0)
+ if (it.cmp_it.id >= 0)
+ it_overshoot_count = 0;
+ else if (it.method == GET_FROM_STRING)
{
- if (it.cmp_it.id >= 0)
- it_overshoot_expected = 1;
- else if (it.method == GET_FROM_STRING)
+ const char *s = SSDATA (it.string);
+ const char *e = s + SBYTES (it.string);
+ while (s < e)
{
- const char *s = SSDATA (it.string);
- const char *e = s + SBYTES (it.string);
- while (s < e && *s != '\n')
- ++s;
- it_overshoot_expected = (s == e) ? -1 : 0;
+ if (*s++ == '\n')
+ it_overshoot_count++;
}
- else
- it_overshoot_expected = (it.method == GET_FROM_IMAGE
- || it.method == GET_FROM_STRETCH);
+ if (!it_overshoot_count)
+ it_overshoot_count = -1;
}
+ else
+ it_overshoot_count =
+ !(it.method == GET_FROM_IMAGE || it.method == GET_FROM_STRETCH);
/* Scan from the start of the line containing PT. If we don't
do this, we start moving with IT->current_x == 0, while PT is
tell, and it causes Bug#2694 . -- cyd */
move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS);
+ /* IT may move too far if truncate-lines is on and PT lies
+ beyond the right margin. IT may also move too far if the
+ starting point is on a Lisp string that has embedded
+ newlines. In these cases, backtrack. */
+ if (IT_CHARPOS (it) > it_start)
+ {
+ /* We need to backtrack also if the Lisp string contains no
+ newlines, but there is a newline right after it. In this
+ case, IT overshoots if there is an after-string just
+ before the newline. */
+ if (it_overshoot_count < 0
+ && it.method == GET_FROM_BUFFER
+ && it.c == '\n')
+ it_overshoot_count = 1;
+ if (it_overshoot_count > 0)
+ move_it_by_lines (&it, -it_overshoot_count);
+
+ overshoot_handled = 1;
+ }
if (XINT (lines) <= 0)
{
it.vpos = 0;
/* Do this even if LINES is 0, so that we move back to the
beginning of the current line as we ought. */
if (XINT (lines) == 0 || IT_CHARPOS (it) > 0)
- move_it_by_lines (&it, XINT (lines), 0);
+ move_it_by_lines (&it, max (INT_MIN, XINT (lines)));
+ }
+ else if (overshoot_handled)
+ {
+ it.vpos = 0;
+ move_it_by_lines (&it, min (INT_MAX, XINT (lines)));
}
else
{
- if (IT_CHARPOS (it) > it_start)
+ /* Otherwise, we are at the first row occupied by PT, which
+ might span multiple screen lines (e.g., if it's on a
+ multi-line display string). We want to start from the
+ last line that it occupies. */
+ if (it_start < ZV)
{
- /* IT may move too far if truncate-lines is on and PT
- lies beyond the right margin. In that case,
- backtrack unless the starting point is on an image,
- stretch glyph, composition, or Lisp string. */
- if (!it_overshoot_expected
- /* Also, backtrack if the Lisp string contains no
- newline, but there is a newline right after it.
- In this case, IT overshoots if there is an
- after-string just before the newline. */
- || (it_overshoot_expected < 0
- && it.method == GET_FROM_BUFFER
- && it.c == '\n'))
- move_it_by_lines (&it, -1, 0);
- it.vpos = 0;
- move_it_by_lines (&it, XINT (lines), 0);
- }
- else
- {
- /* Otherwise, we are at the first row occupied by PT,
- which might span multiple screen lines (e.g., if it's
- on a multi-line display string). We want to start
- from the last line that it occupies. */
- if (it_start < ZV)
- {
- while (IT_CHARPOS (it) <= it_start)
- {
- it.vpos = 0;
- move_it_by_lines (&it, 1, 0);
- }
- if (XINT (lines) > 1)
- move_it_by_lines (&it, XINT (lines) - 1, 0);
- }
- else
+ while (IT_CHARPOS (it) <= it_start)
{
it.vpos = 0;
- move_it_by_lines (&it, XINT (lines), 0);
+ move_it_by_lines (&it, 1);
}
+ if (XINT (lines) > 1)
+ move_it_by_lines (&it, min (INT_MAX, XINT (lines) - 1));
+ }
+ else
+ {
+ it.vpos = 0;
+ move_it_by_lines (&it, min (INT_MAX, XINT (lines)));
}
}
}
SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it));
+ bidi_unshelve_cache (itdata, 0);
}
if (BUFFERP (old_buffer))
- w->buffer = old_buffer;
+ {
+ w->buffer = old_buffer;
+ set_marker_both (w->pointm, w->buffer, old_charpos, old_bytepos);
+ }
RETURN_UNGCPRO (make_number (it.vpos));
}
HCoop / bpt / emacs.git / blobdiff