/* Interface code for dealing with text properties.
- Copyright (C) 1993-1995, 1997, 1999-2012 Free Software Foundation, Inc.
+ Copyright (C) 1993-1995, 1997, 1999-2013 Free Software Foundation,
+ Inc.
This file is part of GNU Emacs.
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
-#include <setjmp.h>
+
#include "lisp.h"
#include "intervals.h"
#include "character.h"
static Lisp_Object Qread_only;
Lisp_Object Qminibuffer_prompt;
-/* Sticky properties */
+enum property_set_type
+{
+ TEXT_PROPERTY_REPLACE,
+ TEXT_PROPERTY_PREPEND,
+ TEXT_PROPERTY_APPEND
+};
+
+/* Sticky properties. */
Lisp_Object Qfront_sticky, Qrear_nonsticky;
/* If o1 is a cons whose cdr is a cons, return non-zero and set o2 to
xsignal0 (Qtext_read_only);
}
+/* Prepare to modify the region of BUFFER from START to END. */
+
+static void
+modify_region (Lisp_Object buffer, Lisp_Object start, Lisp_Object end)
+{
+ struct buffer *buf = XBUFFER (buffer), *old = current_buffer;
+
+ set_buffer_internal (buf);
+ modify_region_1 (XINT (start), XINT (end), true);
+ set_buffer_internal (old);
+}
+
+/* Complain if object is not string or buffer type. */
+
+static void
+CHECK_STRING_OR_BUFFER (Lisp_Object x)
+{
+ CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x);
+}
-\f
/* Extract the interval at the position pointed to by BEGIN from
OBJECT, a string or buffer. Additionally, check that the positions
pointed to by BEGIN and END are within the bounds of OBJECT, and
Fprevious_property_change which call this function with BEGIN == END.
Handle this case specially.
- If FORCE is soft (0), it's OK to return NULL_INTERVAL. Otherwise,
+ If FORCE is soft (0), it's OK to return NULL. Otherwise,
create an interval tree for OBJECT if one doesn't exist, provided
the object actually contains text. In the current design, if there
is no text, there can be no text properties. */
#define hard 1
INTERVAL
-validate_interval_range (Lisp_Object object, Lisp_Object *begin, Lisp_Object *end, int force)
+validate_interval_range (Lisp_Object object, Lisp_Object *begin,
+ Lisp_Object *end, bool force)
{
- register INTERVAL i;
+ INTERVAL i;
ptrdiff_t searchpos;
CHECK_STRING_OR_BUFFER (object);
/* If we are asked for a point, but from a subr which operates
on a range, then return nothing. */
if (EQ (*begin, *end) && begin != end)
- return NULL_INTERVAL;
+ return NULL;
if (XINT (*begin) > XINT (*end))
{
if (!(BUF_BEGV (b) <= XINT (*begin) && XINT (*begin) <= XINT (*end)
&& XINT (*end) <= BUF_ZV (b)))
args_out_of_range (*begin, *end);
- i = BUF_INTERVALS (b);
+ i = buffer_intervals (b);
/* If there's no text, there are no properties. */
if (BUF_BEGV (b) == BUF_ZV (b))
- return NULL_INTERVAL;
+ return NULL;
searchpos = XINT (*begin);
}
XSETFASTINT (*begin, XFASTINT (*begin));
if (begin != end)
XSETFASTINT (*end, XFASTINT (*end));
- i = STRING_INTERVALS (object);
+ i = string_intervals (object);
if (len == 0)
- return NULL_INTERVAL;
+ return NULL;
searchpos = XINT (*begin);
}
- if (NULL_INTERVAL_P (i))
+ if (!i)
return (force ? create_root_interval (object) : i);
return find_interval (i, searchpos);
if (CONSP (list))
{
- register int i;
- register Lisp_Object tail;
- for (i = 0, tail = list; CONSP (tail); i++)
+ bool odd_length = 0;
+ Lisp_Object tail;
+ for (tail = list; CONSP (tail); tail = XCDR (tail))
{
- tail = XCDR (tail);
+ odd_length ^= 1;
QUIT;
}
- if (i & 1)
+ if (odd_length)
error ("Odd length text property list");
return list;
}
return Fcons (list, Fcons (Qnil, Qnil));
}
-/* Return nonzero if interval I has all the properties,
+/* Return true if interval I has all the properties,
with the same values, of list PLIST. */
-static int
+static bool
interval_has_all_properties (Lisp_Object plist, INTERVAL i)
{
- register Lisp_Object tail1, tail2, sym1;
- register int found;
+ Lisp_Object tail1, tail2;
/* Go through each element of PLIST. */
for (tail1 = plist; CONSP (tail1); tail1 = Fcdr (XCDR (tail1)))
{
- sym1 = XCAR (tail1);
- found = 0;
+ Lisp_Object sym1 = XCAR (tail1);
+ bool found = 0;
/* Go through I's plist, looking for sym1 */
for (tail2 = i->plist; CONSP (tail2); tail2 = Fcdr (XCDR (tail2)))
return 1;
}
-/* Return nonzero if the plist of interval I has any of the
+/* Return true if the plist of interval I has any of the
properties of PLIST, regardless of their values. */
-static inline int
+static bool
interval_has_some_properties (Lisp_Object plist, INTERVAL i)
{
- register Lisp_Object tail1, tail2, sym;
+ Lisp_Object tail1, tail2, sym;
/* Go through each element of PLIST. */
for (tail1 = plist; CONSP (tail1); tail1 = Fcdr (XCDR (tail1)))
/* Return nonzero if the plist of interval I has any of the
property names in LIST, regardless of their values. */
-static inline int
+static bool
interval_has_some_properties_list (Lisp_Object list, INTERVAL i)
{
- register Lisp_Object tail1, tail2, sym;
+ Lisp_Object tail1, tail2, sym;
/* Go through each element of LIST. */
for (tail1 = list; CONSP (tail1); tail1 = XCDR (tail1))
}
/* Store new properties. */
- interval->plist = Fcopy_sequence (properties);
+ set_interval_plist (interval, Fcopy_sequence (properties));
}
/* Add the properties of PLIST to the interval I, or set
OBJECT should be the string or buffer the interval is in.
- Return nonzero if this changes I (i.e., if any members of PLIST
+ Return true if this changes I (i.e., if any members of PLIST
are actually added to I's plist) */
-static int
-add_properties (Lisp_Object plist, INTERVAL i, Lisp_Object object)
+static bool
+add_properties (Lisp_Object plist, INTERVAL i, Lisp_Object object,
+ enum property_set_type set_type)
{
Lisp_Object tail1, tail2, sym1, val1;
- register int changed = 0;
- register int found;
+ bool changed = 0;
struct gcpro gcpro1, gcpro2, gcpro3;
tail1 = plist;
/* Go through each element of PLIST. */
for (tail1 = plist; CONSP (tail1); tail1 = Fcdr (XCDR (tail1)))
{
+ bool found = 0;
sym1 = XCAR (tail1);
val1 = Fcar (XCDR (tail1));
- found = 0;
/* Go through I's plist, looking for sym1 */
for (tail2 = i->plist; CONSP (tail2); tail2 = Fcdr (XCDR (tail2)))
}
/* I's property has a different value -- change it */
- Fsetcar (this_cdr, val1);
- changed++;
+ if (set_type == TEXT_PROPERTY_REPLACE)
+ Fsetcar (this_cdr, val1);
+ else {
+ if (CONSP (Fcar (this_cdr)) &&
+ /* Special-case anonymous face properties. */
+ (! EQ (sym1, Qface) ||
+ NILP (Fkeywordp (Fcar (Fcar (this_cdr))))))
+ /* The previous value is a list, so prepend (or
+ append) the new value to this list. */
+ if (set_type == TEXT_PROPERTY_PREPEND)
+ Fsetcar (this_cdr, Fcons (val1, Fcar (this_cdr)));
+ else
+ nconc2 (Fcar (this_cdr), Fcons (val1, Qnil));
+ else {
+ /* The previous value is a single value, so make it
+ into a list. */
+ if (set_type == TEXT_PROPERTY_PREPEND)
+ Fsetcar (this_cdr,
+ Fcons (val1, Fcons (Fcar (this_cdr), Qnil)));
+ else
+ Fsetcar (this_cdr,
+ Fcons (Fcar (this_cdr), Fcons (val1, Qnil)));
+ }
+ }
+ changed = 1;
break;
}
record_property_change (i->position, LENGTH (i),
sym1, Qnil, object);
}
- i->plist = Fcons (sym1, Fcons (val1, i->plist));
- changed++;
+ set_interval_plist (i, Fcons (sym1, Fcons (val1, i->plist)));
+ changed = 1;
}
}
(If PLIST is non-nil, use that, otherwise use LIST.)
OBJECT is the string or buffer containing I. */
-static int
+static bool
remove_properties (Lisp_Object plist, Lisp_Object list, INTERVAL i, Lisp_Object object)
{
- register Lisp_Object tail1, tail2, sym, current_plist;
- register int changed = 0;
+ Lisp_Object tail1, tail2, sym, current_plist;
+ bool changed = 0;
- /* Nonzero means tail1 is a plist, otherwise it is a list. */
- int use_plist;
+ /* True means tail1 is a plist, otherwise it is a list. */
+ bool use_plist;
current_plist = i->plist;
object);
current_plist = XCDR (XCDR (current_plist));
- changed++;
+ changed = 1;
}
/* Go through I's plist, looking for SYM. */
sym, XCAR (XCDR (this)), object);
Fsetcdr (XCDR (tail2), XCDR (XCDR (this)));
- changed++;
+ changed = 1;
}
tail2 = this;
}
}
if (changed)
- i->plist = current_plist;
+ set_interval_plist (i, current_plist);
return changed;
}
\f
if (NILP (object))
XSETBUFFER (object, current_buffer);
else if (EQ (object, Qt))
- return NULL_INTERVAL;
+ return NULL;
CHECK_STRING_OR_BUFFER (object);
beg = BUF_BEGV (b);
end = BUF_ZV (b);
- i = BUF_INTERVALS (b);
+ i = buffer_intervals (b);
}
else
{
beg = 0;
end = SCHARS (object);
- i = STRING_INTERVALS (object);
+ i = string_intervals (object);
}
if (!(beg <= position && position <= end))
args_out_of_range (make_number (position), make_number (position));
- if (beg == end || NULL_INTERVAL_P (i))
- return NULL_INTERVAL;
+ if (beg == end || !i)
+ return NULL;
return find_interval (i, position);
}
XSETBUFFER (object, current_buffer);
i = validate_interval_range (object, &position, &position, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
/* If POSITION is at the end of the interval,
it means it's the end of OBJECT.
DEFUN ("get-text-property", Fget_text_property, Sget_text_property, 2, 3, 0,
doc: /* Return the value of POSITION's property PROP, in OBJECT.
-OBJECT is optional and defaults to the current buffer.
+OBJECT should be a buffer or a string; if omitted or nil, it defaults
+to the current buffer.
If POSITION is at the end of OBJECT, the value is nil. */)
(Lisp_Object position, Lisp_Object prop, Lisp_Object object)
{
if (WINDOWP (object))
{
+ CHECK_LIVE_WINDOW (object);
w = XWINDOW (object);
- object = w->buffer;
+ object = w->contents;
}
if (BUFFERP (object))
{
if (BUFFERP (object) && current_buffer != XBUFFER (object))
{
- record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+ record_unwind_current_buffer ();
Fset_buffer (object);
}
if (BUFFERP (object) && current_buffer != XBUFFER (object))
{
- record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+ record_unwind_current_buffer ();
Fset_buffer (object);
}
bother checking further intervals. */
if (EQ (limit, Qt))
{
- if (NULL_INTERVAL_P (i))
+ if (!i)
next = i;
else
next = next_interval (i);
- if (NULL_INTERVAL_P (next))
+ if (!next)
XSETFASTINT (position, (STRINGP (object)
? SCHARS (object)
: BUF_ZV (XBUFFER (object))));
return position;
}
- if (NULL_INTERVAL_P (i))
+ if (!i)
return limit;
next = next_interval (i);
- while (!NULL_INTERVAL_P (next) && intervals_equal (i, next)
+ while (next && intervals_equal (i, next)
&& (NILP (limit) || next->position < XFASTINT (limit)))
next = next_interval (next);
- if (NULL_INTERVAL_P (next)
+ if (!next
|| (next->position
>= (INTEGERP (limit)
? XFASTINT (limit)
CHECK_NUMBER_COERCE_MARKER (limit);
i = validate_interval_range (object, &position, &position, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return limit;
here_val = textget (i->plist, prop);
next = next_interval (i);
- while (! NULL_INTERVAL_P (next)
+ while (next
&& EQ (here_val, textget (next->plist, prop))
&& (NILP (limit) || next->position < XFASTINT (limit)))
next = next_interval (next);
- if (NULL_INTERVAL_P (next)
+ if (!next
|| (next->position
>= (INTEGERP (limit)
? XFASTINT (limit)
CHECK_NUMBER_COERCE_MARKER (limit);
i = validate_interval_range (object, &position, &position, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return limit;
/* Start with the interval containing the char before point. */
i = previous_interval (i);
previous = previous_interval (i);
- while (!NULL_INTERVAL_P (previous) && intervals_equal (previous, i)
+ while (previous && intervals_equal (previous, i)
&& (NILP (limit)
|| (previous->position + LENGTH (previous) > XFASTINT (limit))))
previous = previous_interval (previous);
- if (NULL_INTERVAL_P (previous)
+ if (!previous
|| (previous->position + LENGTH (previous)
<= (INTEGERP (limit)
? XFASTINT (limit)
i = validate_interval_range (object, &position, &position, soft);
/* Start with the interval containing the char before point. */
- if (!NULL_INTERVAL_P (i) && i->position == XFASTINT (position))
+ if (i && i->position == XFASTINT (position))
i = previous_interval (i);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return limit;
here_val = textget (i->plist, prop);
previous = previous_interval (i);
- while (!NULL_INTERVAL_P (previous)
+ while (previous
&& EQ (here_val, textget (previous->plist, prop))
&& (NILP (limit)
|| (previous->position + LENGTH (previous) > XFASTINT (limit))))
previous = previous_interval (previous);
- if (NULL_INTERVAL_P (previous)
+ if (!previous
|| (previous->position + LENGTH (previous)
<= (INTEGERP (limit)
? XFASTINT (limit)
return make_number (previous->position + LENGTH (previous));
}
\f
-/* Callers note, this can GC when OBJECT is a buffer (or nil). */
+/* Used by add-text-properties and add-face-text-property. */
-DEFUN ("add-text-properties", Fadd_text_properties,
- Sadd_text_properties, 3, 4, 0,
- doc: /* Add properties to the text from START to END.
-The third argument PROPERTIES is a property list
-specifying the property values to add. If the optional fourth argument
-OBJECT is a buffer (or nil, which means the current buffer),
-START and END are buffer positions (integers or markers).
-If OBJECT is a string, START and END are 0-based indices into it.
-Return t if any property value actually changed, nil otherwise. */)
- (Lisp_Object start, Lisp_Object end, Lisp_Object properties, Lisp_Object object)
-{
- register INTERVAL i, unchanged;
- register ptrdiff_t s, len;
- register int modified = 0;
+static Lisp_Object
+add_text_properties_1 (Lisp_Object start, Lisp_Object end,
+ Lisp_Object properties, Lisp_Object object,
+ enum property_set_type set_type) {
+ INTERVAL i, unchanged;
+ ptrdiff_t s, len;
+ bool modified = 0;
struct gcpro gcpro1;
+ bool first_time = 1;
properties = validate_plist (properties);
if (NILP (properties))
if (NILP (object))
XSETBUFFER (object, current_buffer);
+ retry:
i = validate_interval_range (object, &start, &end, hard);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
s = XINT (start);
and live buffers are always protected. */
GCPRO1 (properties);
- /* If we're not starting on an interval boundary, we have to
- split this interval. */
- if (i->position != s)
+ /* If this interval already has the properties, we can skip it. */
+ if (interval_has_all_properties (properties, i))
{
- /* If this interval already has the properties, we can
- skip it. */
- if (interval_has_all_properties (properties, i))
+ ptrdiff_t got = LENGTH (i) - (s - i->position);
+
+ do
{
- ptrdiff_t got = (LENGTH (i) - (s - i->position));
if (got >= len)
RETURN_UNGCPRO (Qnil);
len -= got;
i = next_interval (i);
+ got = LENGTH (i);
}
- else
+ while (interval_has_all_properties (properties, i));
+ }
+ else if (i->position != s)
+ {
+ /* If we're not starting on an interval boundary, we have to
+ split this interval. */
+ unchanged = i;
+ i = split_interval_right (unchanged, s - unchanged->position);
+ copy_properties (unchanged, i);
+ }
+
+ if (BUFFERP (object) && first_time)
+ {
+ ptrdiff_t prev_total_length = TOTAL_LENGTH (i);
+ ptrdiff_t prev_pos = i->position;
+
+ modify_region (object, start, end);
+ /* If someone called us recursively as a side effect of
+ modify_region, and changed the intervals behind our back
+ (could happen if lock_file, called by prepare_to_modify_buffer,
+ triggers redisplay, and that calls add-text-properties again
+ in the same buffer), we cannot continue with I, because its
+ data changed. So we restart the interval analysis anew. */
+ if (TOTAL_LENGTH (i) != prev_total_length
+ || i->position != prev_pos)
{
- unchanged = i;
- i = split_interval_right (unchanged, s - unchanged->position);
- copy_properties (unchanged, i);
+ first_time = 0;
+ goto retry;
}
}
- if (BUFFERP (object))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
-
/* We are at the beginning of interval I, with LEN chars to scan. */
for (;;)
{
signal_after_change (XINT (start), XINT (end) - XINT (start),
XINT (end) - XINT (start));
- return modified ? Qt : Qnil;
+ eassert (modified);
+ return Qt;
}
if (LENGTH (i) == len)
{
- add_properties (properties, i, object);
+ add_properties (properties, i, object, set_type);
if (BUFFERP (object))
signal_after_change (XINT (start), XINT (end) - XINT (start),
XINT (end) - XINT (start));
unchanged = i;
i = split_interval_left (unchanged, len);
copy_properties (unchanged, i);
- add_properties (properties, i, object);
+ add_properties (properties, i, object, set_type);
if (BUFFERP (object))
signal_after_change (XINT (start), XINT (end) - XINT (start),
XINT (end) - XINT (start));
}
len -= LENGTH (i);
- modified += add_properties (properties, i, object);
+ modified |= add_properties (properties, i, object, set_type);
i = next_interval (i);
}
}
/* Callers note, this can GC when OBJECT is a buffer (or nil). */
+DEFUN ("add-text-properties", Fadd_text_properties,
+ Sadd_text_properties, 3, 4, 0,
+ doc: /* Add properties to the text from START to END.
+The third argument PROPERTIES is a property list
+specifying the property values to add. If the optional fourth argument
+OBJECT is a buffer (or nil, which means the current buffer),
+START and END are buffer positions (integers or markers).
+If OBJECT is a string, START and END are 0-based indices into it.
+Return t if any property value actually changed, nil otherwise. */)
+ (Lisp_Object start, Lisp_Object end, Lisp_Object properties,
+ Lisp_Object object)
+{
+ return add_text_properties_1 (start, end, properties, object,
+ TEXT_PROPERTY_REPLACE);
+}
+
+/* Callers note, this can GC when OBJECT is a buffer (or nil). */
+
DEFUN ("put-text-property", Fput_text_property,
Sput_text_property, 4, 5, 0,
doc: /* Set one property of the text from START to END.
}
+DEFUN ("add-face-text-property", Fadd_face_text_property,
+ Sadd_face_text_property, 3, 5, 0,
+ doc: /* Add the face property to the text from START to END.
+The third argument FACE specifies the face to add.
+If any text in the region already has any face properties, this new
+face property will be added to the front of the face property list.
+If the optional fourth argument APPENDP is non-nil, append to the end
+of the face property list instead.
+If the optional fifth argument OBJECT is a buffer (or nil, which means
+the current buffer), START and END are buffer positions (integers or
+markers). If OBJECT is a string, START and END are 0-based indices
+into it. */)
+ (Lisp_Object start, Lisp_Object end, Lisp_Object face,
+ Lisp_Object appendp, Lisp_Object object)
+{
+ add_text_properties_1 (start, end,
+ Fcons (Qface, Fcons (face, Qnil)),
+ object,
+ NILP (appendp)? TEXT_PROPERTY_PREPEND:
+ TEXT_PROPERTY_APPEND);
+ return Qnil;
+}
+
/* Replace properties of text from START to END with new list of
properties PROPERTIES. OBJECT is the buffer or string containing
the text. OBJECT nil means use the current buffer.
&& XFASTINT (start) == 0
&& XFASTINT (end) == SCHARS (object))
{
- if (! STRING_INTERVALS (object))
+ if (!string_intervals (object))
return Qnil;
- STRING_SET_INTERVALS (object, NULL_INTERVAL);
+ set_string_intervals (object, NULL);
return Qt;
}
i = validate_interval_range (object, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
{
/* If buffer has no properties, and we want none, return now. */
if (NILP (properties))
i = validate_interval_range (object, &start, &end, hard);
/* This can return if start == end. */
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
}
if (BUFFERP (object) && !NILP (coherent_change_p))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
+ modify_region (object, start, end);
set_text_properties_1 (start, end, properties, object, i);
}
/* Replace properties of text from START to END with new list of
- properties PROPERTIES. BUFFER is the buffer containing
+ properties PROPERTIES. OBJECT is the buffer or string containing
the text. This does not obey any hooks.
- You can provide the interval that START is located in as I,
- or pass NULL for I and this function will find it.
+ You should provide the interval that START is located in as I.
START and END can be in any order. */
void
-set_text_properties_1 (Lisp_Object start, Lisp_Object end, Lisp_Object properties, Lisp_Object buffer, INTERVAL i)
+set_text_properties_1 (Lisp_Object start, Lisp_Object end, Lisp_Object properties, Lisp_Object object, INTERVAL i)
{
- register INTERVAL prev_changed = NULL_INTERVAL;
+ register INTERVAL prev_changed = NULL;
register ptrdiff_t s, len;
INTERVAL unchanged;
else
return;
- if (i == 0)
- i = find_interval (BUF_INTERVALS (XBUFFER (buffer)), s);
+ eassert (i);
if (i->position != s)
{
{
copy_properties (unchanged, i);
i = split_interval_left (i, len);
- set_properties (properties, i, buffer);
+ set_properties (properties, i, object);
return;
}
- set_properties (properties, i, buffer);
+ set_properties (properties, i, object);
if (LENGTH (i) == len)
return;
/* We have to call set_properties even if we are going to
merge the intervals, so as to make the undo records
and cause redisplay to happen. */
- set_properties (properties, i, buffer);
- if (!NULL_INTERVAL_P (prev_changed))
+ set_properties (properties, i, object);
+ if (prev_changed)
merge_interval_left (i);
return;
}
/* We have to call set_properties even if we are going to
merge the intervals, so as to make the undo records
and cause redisplay to happen. */
- set_properties (properties, i, buffer);
- if (NULL_INTERVAL_P (prev_changed))
+ set_properties (properties, i, object);
+ if (!prev_changed)
prev_changed = i;
else
prev_changed = i = merge_interval_left (i);
Use `set-text-properties' if you want to remove all text properties. */)
(Lisp_Object start, Lisp_Object end, Lisp_Object properties, Lisp_Object object)
{
- register INTERVAL i, unchanged;
- register ptrdiff_t s, len;
- register int modified = 0;
+ INTERVAL i, unchanged;
+ ptrdiff_t s, len;
+ bool modified = 0;
+ bool first_time = 1;
if (NILP (object))
XSETBUFFER (object, current_buffer);
+ retry:
i = validate_interval_range (object, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
s = XINT (start);
len = XINT (end) - s;
- if (i->position != s)
+ /* If there are no properties on this entire interval, return. */
+ if (! interval_has_some_properties (properties, i))
{
- /* No properties on this first interval -- return if
- it covers the entire region. */
- if (! interval_has_some_properties (properties, i))
+ ptrdiff_t got = LENGTH (i) - (s - i->position);
+
+ do
{
- ptrdiff_t got = (LENGTH (i) - (s - i->position));
if (got >= len)
return Qnil;
len -= got;
i = next_interval (i);
+ got = LENGTH (i);
}
- /* Split away the beginning of this interval; what we don't
- want to modify. */
- else
+ while (! interval_has_some_properties (properties, i));
+ }
+ /* Split away the beginning of this interval; what we don't
+ want to modify. */
+ else if (i->position != s)
+ {
+ unchanged = i;
+ i = split_interval_right (unchanged, s - unchanged->position);
+ copy_properties (unchanged, i);
+ }
+
+ if (BUFFERP (object) && first_time)
+ {
+ ptrdiff_t prev_total_length = TOTAL_LENGTH (i);
+ ptrdiff_t prev_pos = i->position;
+
+ modify_region (object, start, end);
+ /* If someone called us recursively as a side effect of
+ modify_region, and changed the intervals behind our back
+ (could happen if lock_file, called by prepare_to_modify_buffer,
+ triggers redisplay, and that calls add-text-properties again
+ in the same buffer), we cannot continue with I, because its
+ data changed. So we restart the interval analysis anew. */
+ if (TOTAL_LENGTH (i) != prev_total_length
+ || i->position != prev_pos)
{
- unchanged = i;
- i = split_interval_right (unchanged, s - unchanged->position);
- copy_properties (unchanged, i);
+ first_time = 0;
+ goto retry;
}
}
- if (BUFFERP (object))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
-
/* We are at the beginning of an interval, with len to scan */
for (;;)
{
if (LENGTH (i) >= len)
{
if (! interval_has_some_properties (properties, i))
- return modified ? Qt : Qnil;
+ {
+ eassert (modified);
+ if (BUFFERP (object))
+ signal_after_change (XINT (start), XINT (end) - XINT (start),
+ XINT (end) - XINT (start));
+ return Qt;
+ }
if (LENGTH (i) == len)
{
}
len -= LENGTH (i);
- modified += remove_properties (properties, Qnil, i, object);
+ modified |= remove_properties (properties, Qnil, i, object);
i = next_interval (i);
}
}
Return t if any property was actually removed, nil otherwise. */)
(Lisp_Object start, Lisp_Object end, Lisp_Object list_of_properties, Lisp_Object object)
{
- register INTERVAL i, unchanged;
- register ptrdiff_t s, len;
- register int modified = 0;
+ INTERVAL i, unchanged;
+ ptrdiff_t s, len;
+ bool modified = 0;
Lisp_Object properties;
properties = list_of_properties;
XSETBUFFER (object, current_buffer);
i = validate_interval_range (object, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
s = XINT (start);
len = XINT (end) - s;
- if (i->position != s)
+ /* If there are no properties on the interval, return. */
+ if (! interval_has_some_properties_list (properties, i))
{
- /* No properties on this first interval -- return if
- it covers the entire region. */
- if (! interval_has_some_properties_list (properties, i))
+ ptrdiff_t got = LENGTH (i) - (s - i->position);
+
+ do
{
- ptrdiff_t got = (LENGTH (i) - (s - i->position));
if (got >= len)
return Qnil;
len -= got;
i = next_interval (i);
+ got = LENGTH (i);
}
- /* Split away the beginning of this interval; what we don't
- want to modify. */
- else
- {
- unchanged = i;
- i = split_interval_right (unchanged, s - unchanged->position);
- copy_properties (unchanged, i);
- }
+ while (! interval_has_some_properties_list (properties, i));
+ }
+ /* Split away the beginning of this interval; what we don't
+ want to modify. */
+ else if (i->position != s)
+ {
+ unchanged = i;
+ i = split_interval_right (unchanged, s - unchanged->position);
+ copy_properties (unchanged, i);
}
/* We are at the beginning of an interval, with len to scan.
else if (LENGTH (i) == len)
{
if (!modified && BUFFERP (object))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
+ modify_region (object, start, end);
remove_properties (Qnil, properties, i, object);
if (BUFFERP (object))
signal_after_change (XINT (start), XINT (end) - XINT (start),
i = split_interval_left (i, len);
copy_properties (unchanged, i);
if (!modified && BUFFERP (object))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
+ modify_region (object, start, end);
remove_properties (Qnil, properties, i, object);
if (BUFFERP (object))
signal_after_change (XINT (start), XINT (end) - XINT (start),
if (interval_has_some_properties_list (properties, i))
{
if (!modified && BUFFERP (object))
- modify_region (XBUFFER (object), XINT (start), XINT (end), 1);
+ modify_region (object, start, end);
remove_properties (Qnil, properties, i, object);
modified = 1;
}
if (NILP (object))
XSETBUFFER (object, current_buffer);
i = validate_interval_range (object, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return (!NILP (value) || EQ (start, end) ? Qnil : start);
e = XINT (end);
- while (! NULL_INTERVAL_P (i))
+ while (i)
{
if (i->position >= e)
break;
if (NILP (object))
XSETBUFFER (object, current_buffer);
i = validate_interval_range (object, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return (NILP (value) || EQ (start, end)) ? Qnil : start;
s = XINT (start);
e = XINT (end);
- while (! NULL_INTERVAL_P (i))
+ while (i)
{
if (i->position >= e)
break;
text_property_stickiness (Lisp_Object prop, Lisp_Object pos, Lisp_Object buffer)
{
Lisp_Object prev_pos, front_sticky;
- int is_rear_sticky = 1, is_front_sticky = 0; /* defaults */
+ bool is_rear_sticky = 1, is_front_sticky = 0; /* defaults */
Lisp_Object defalt = Fassq (prop, Vtext_property_default_nonsticky);
if (NILP (buffer))
Lisp_Object stuff;
Lisp_Object plist;
ptrdiff_t s, e, e2, p, len;
- int modified = 0;
+ bool modified = 0;
struct gcpro gcpro1, gcpro2;
i = validate_interval_range (src, &start, &end, soft);
- if (NULL_INTERVAL_P (i))
+ if (!i)
return Qnil;
CHECK_NUMBER_COERCE_MARKER (pos);
}
i = next_interval (i);
- if (NULL_INTERVAL_P (i))
+ if (!i)
break;
p += len;
res = Fadd_text_properties (Fcar (res), Fcar (Fcdr (res)),
Fcar (Fcdr (Fcdr (res))), dest);
if (! NILP (res))
- modified++;
+ modified = 1;
stuff = Fcdr (stuff);
}
result = Qnil;
i = validate_interval_range (object, &start, &end, soft);
- if (!NULL_INTERVAL_P (i))
+ if (i)
{
ptrdiff_t s = XINT (start);
ptrdiff_t e = XINT (end);
result);
i = next_interval (i);
- if (NULL_INTERVAL_P (i))
+ if (!i)
break;
s = i->position;
}
/* Add text properties to OBJECT from LIST. LIST is a list of triples
(START END PLIST), where START and END are positions and PLIST is a
property list containing the text properties to add. Adjust START
- and END positions by DELTA before adding properties. Value is
- non-zero if OBJECT was modified. */
+ and END positions by DELTA before adding properties. */
-int
+void
add_text_properties_from_list (Lisp_Object object, Lisp_Object list, Lisp_Object delta)
{
struct gcpro gcpro1, gcpro2;
- int modified_p = 0;
GCPRO2 (list, object);
for (; CONSP (list); list = XCDR (list))
{
- Lisp_Object item, start, end, plist, tem;
+ Lisp_Object item, start, end, plist;
item = XCAR (list);
start = make_number (XINT (XCAR (item)) + XINT (delta));
end = make_number (XINT (XCAR (XCDR (item))) + XINT (delta));
plist = XCAR (XCDR (XCDR (item)));
- tem = Fadd_text_properties (start, end, plist, object);
- if (!NILP (tem))
- modified_p = 1;
+ Fadd_text_properties (start, end, plist, object);
}
UNGCPRO;
- return modified_p;
}
verify_interval_modification (struct buffer *buf,
ptrdiff_t start, ptrdiff_t end)
{
- register INTERVAL intervals = BUF_INTERVALS (buf);
- register INTERVAL i;
+ INTERVAL intervals = buffer_intervals (buf);
+ INTERVAL i;
Lisp_Object hooks;
- register Lisp_Object prev_mod_hooks;
+ Lisp_Object prev_mod_hooks;
Lisp_Object mod_hooks;
struct gcpro gcpro1;
interval_insert_behind_hooks = Qnil;
interval_insert_in_front_hooks = Qnil;
- if (NULL_INTERVAL_P (intervals))
+ if (!intervals)
return;
if (start > end)
indirectly defined via the category property. */
if (i != prev)
{
- if (! NULL_INTERVAL_P (i))
+ if (i)
{
after = textget (i->plist, Qread_only);
}
}
- if (! NULL_INTERVAL_P (prev))
+ if (prev)
{
before = textget (prev->plist, Qread_only);
}
}
}
- else if (! NULL_INTERVAL_P (i))
+ else if (i)
{
after = textget (i->plist, Qread_only);
}
/* Run both insert hooks (just once if they're the same). */
- if (!NULL_INTERVAL_P (prev))
+ if (prev)
interval_insert_behind_hooks
= textget (prev->plist, Qinsert_behind_hooks);
- if (!NULL_INTERVAL_P (i))
+ if (i)
interval_insert_in_front_hooks
= textget (i->plist, Qinsert_in_front_hooks);
}
i = next_interval (i);
}
/* Keep going thru the interval containing the char before END. */
- while (! NULL_INTERVAL_P (i) && i->position < end);
+ while (i && i->position < end);
if (!inhibit_modification_hooks)
{
DEFSYM (Qforeground, "foreground");
DEFSYM (Qbackground, "background");
DEFSYM (Qfont, "font");
+ DEFSYM (Qface, "face");
DEFSYM (Qstipple, "stipple");
DEFSYM (Qunderline, "underline");
DEFSYM (Qread_only, "read-only");
defsubr (&Sadd_text_properties);
defsubr (&Sput_text_property);
defsubr (&Sset_text_properties);
+ defsubr (&Sadd_face_text_property);
defsubr (&Sremove_text_properties);
defsubr (&Sremove_list_of_text_properties);
defsubr (&Stext_property_any);
HCoop / bpt / emacs.git / blobdiff