/* Interface code for dealing with text properties.
- Copyright (C) 1993-1995, 1997, 1999-2011 Free Software Foundation, Inc.
+ Copyright (C) 1993-1995, 1997, 1999-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
\f
/* Types of hooks. */
-Lisp_Object Qmouse_left;
-Lisp_Object Qmouse_entered;
+static Lisp_Object Qmouse_left;
+static Lisp_Object Qmouse_entered;
Lisp_Object Qpoint_left;
Lisp_Object Qpoint_entered;
Lisp_Object Qcategory;
Lisp_Object Qlocal_map;
/* Visual properties text (including strings) may have. */
-Lisp_Object Qforeground, Qbackground, Qfont, Qunderline, Qstipple;
-Lisp_Object Qinvisible, Qread_only, Qintangible, Qmouse_face;
+static Lisp_Object Qforeground, Qbackground, Qunderline;
+Lisp_Object Qfont;
+static Lisp_Object Qstipple;
+Lisp_Object Qinvisible, Qintangible, Qmouse_face;
+static Lisp_Object Qread_only;
Lisp_Object Qminibuffer_prompt;
/* Sticky properties */
/* verify_interval_modification saves insertion hooks here
to be run later by report_interval_modification. */
-Lisp_Object interval_insert_behind_hooks;
-Lisp_Object interval_insert_in_front_hooks;
+static Lisp_Object interval_insert_behind_hooks;
+static Lisp_Object interval_insert_in_front_hooks;
static void text_read_only (Lisp_Object) NO_RETURN;
+static Lisp_Object Fprevious_property_change (Lisp_Object, Lisp_Object,
+ Lisp_Object);
/* Signal a `text-read-only' error. This function makes it easier
if (! EQ (Fcar (XCDR (tail1)), Fcar (XCDR (tail2))))
return 0;
- /* Property has same value on both lists; go to next one. */
+ /* Property has same value on both lists; go to next one. */
found = 1;
break;
}
/* Return nonzero if the plist of interval I has any of the
properties of PLIST, regardless of their values. */
-static INLINE int
+static inline int
interval_has_some_properties (Lisp_Object plist, INTERVAL i)
{
register Lisp_Object tail1, tail2, sym;
/* Return nonzero if the plist of interval I has any of the
property names in LIST, regardless of their values. */
-static INLINE int
+static inline int
interval_has_some_properties_list (Lisp_Object list, INTERVAL i)
{
register Lisp_Object tail1, tail2, sym;
/* Remove all properties from interval I. Return non-zero
if this changes the interval. */
-static INLINE int
+static inline int
erase_properties (INTERVAL i)
{
if (NILP (i->plist))
POSITION is BEG-based. */
INTERVAL
-interval_of (int position, Lisp_Object object)
+interval_of (EMACS_INT position, Lisp_Object object)
{
register INTERVAL i;
EMACS_INT beg, end;
}
if (BUFFERP (object))
{
- int noverlays;
+ ptrdiff_t noverlays;
Lisp_Object *overlay_vec;
struct buffer *obuf = current_buffer;
The property values are compared with `eq'.
If the property is constant all the way to the start of OBJECT, return the
first valid position in OBJECT.
-If the optional fourth argument LIMIT is non-nil, don't search
-back past position LIMIT; return LIMIT if nothing is found before LIMIT. */)
+If the optional fourth argument LIMIT is non-nil, don't search back past
+position LIMIT; return LIMIT if nothing is found before reaching LIMIT. */)
(Lisp_Object position, Lisp_Object prop, Lisp_Object object, Lisp_Object limit)
{
if (STRINGP (object))
register EMACS_INT s, len;
INTERVAL unchanged;
- s = XINT (start);
- len = XINT (end) - s;
- if (len == 0)
- return;
- if (len < 0)
+ if (XINT (start) < XINT (end))
+ {
+ s = XINT (start);
+ len = XINT (end) - s;
+ }
+ else if (XINT (end) < XINT (start))
{
- s = s + len;
- len = - len;
+ s = XINT (end);
+ len = XINT (start) - s;
}
+ else
+ return;
if (i == 0)
i = find_interval (BUF_INTERVALS (XBUFFER (buffer)), s);
i = next_interval (i);
}
- /* We are starting at the beginning of an interval, I */
- while (len > 0)
+ /* We are starting at the beginning of an interval I. LEN is positive. */
+ do
{
if (i == 0)
abort ();
i = next_interval (i);
}
+ while (len > 0);
}
DEFUN ("remove-text-properties", Fremove_text_properties,
\f
DEFUN ("text-property-any", Ftext_property_any,
Stext_property_any, 4, 5, 0,
- doc: /* Check text from START to END for property PROPERTY equalling VALUE.
+ doc: /* Check text from START to END for property PROPERTY equaling VALUE.
If so, return the position of the first character whose property PROPERTY
is `eq' to VALUE. Otherwise return nil.
If the optional fifth argument OBJECT is a buffer (or nil, which means
DEFUN ("text-property-not-all", Ftext_property_not_all,
Stext_property_not_all, 4, 5, 0,
- doc: /* Check text from START to END for property PROPERTY not equalling VALUE.
+ doc: /* Check text from START to END for property PROPERTY not equaling VALUE.
If so, return the position of the first character whose property PROPERTY
is not `eq' to VALUE. Otherwise, return nil.
If the optional fifth argument OBJECT is a buffer (or nil, which means
{
Lisp_Object prev_pos, front_sticky;
int is_rear_sticky = 1, is_front_sticky = 0; /* defaults */
+ Lisp_Object defalt = Fassq (prop, Vtext_property_default_nonsticky);
if (NILP (buffer))
XSETBUFFER (buffer, current_buffer);
+ if (CONSP (defalt) && !NILP (XCDR (defalt)))
+ is_rear_sticky = 0;
+
if (XINT (pos) > BUF_BEGV (XBUFFER (buffer)))
/* Consider previous character. */
{
}
\f
-/* I don't think this is the right interface to export; how often do you
- want to do something like this, other than when you're copying objects
- around?
-
- I think it would be better to have a pair of functions, one which
- returns the text properties of a region as a list of ranges and
- plists, and another which applies such a list to another object. */
+/* Copying properties between objects. */
-/* Add properties from SRC to SRC of SRC, starting at POS in DEST.
+/* Add properties from START to END of SRC, starting at POS in DEST.
SRC and DEST may each refer to strings or buffers.
Optional sixth argument PROP causes only that property to be copied.
Properties are copied to DEST as if by `add-text-properties'.
those hooks in order, with START and END - 1 as arguments. */
void
-verify_interval_modification (struct buffer *buf, int start, int end)
+verify_interval_modification (struct buffer *buf,
+ EMACS_INT start, EMACS_INT end)
{
register INTERVAL intervals = BUF_INTERVALS (buf);
register INTERVAL i;
DEFVAR_LISP ("text-property-default-nonsticky",
Vtext_property_default_nonsticky,
- doc: /* Alist of properties vs the corresponding non-stickinesses.
+ doc: /* Alist of properties vs the corresponding non-stickiness.
Each element has the form (PROPERTY . NONSTICKINESS).
If a character in a buffer has PROPERTY, new text inserted adjacent to
the character doesn't inherit PROPERTY if NONSTICKINESS is non-nil,
inherits it if NONSTICKINESS is nil. The `front-sticky' and
`rear-nonsticky' properties of the character override NONSTICKINESS. */);
- /* Text property `syntax-table' should be nonsticky by default. */
+ /* Text properties `syntax-table'and `display' should be nonsticky
+ by default. */
Vtext_property_default_nonsticky
- = Fcons (Fcons (intern_c_string ("syntax-table"), Qt), Qnil);
+ = Fcons (Fcons (intern_c_string ("syntax-table"), Qt),
+ Fcons (Fcons (intern_c_string ("display"), Qt), Qnil));
staticpro (&interval_insert_behind_hooks);
staticpro (&interval_insert_in_front_hooks);
/* Common attributes one might give text */
- staticpro (&Qforeground);
- Qforeground = intern_c_string ("foreground");
- staticpro (&Qbackground);
- Qbackground = intern_c_string ("background");
- staticpro (&Qfont);
- Qfont = intern_c_string ("font");
- staticpro (&Qstipple);
- Qstipple = intern_c_string ("stipple");
- staticpro (&Qunderline);
- Qunderline = intern_c_string ("underline");
- staticpro (&Qread_only);
- Qread_only = intern_c_string ("read-only");
- staticpro (&Qinvisible);
- Qinvisible = intern_c_string ("invisible");
- staticpro (&Qintangible);
- Qintangible = intern_c_string ("intangible");
- staticpro (&Qcategory);
- Qcategory = intern_c_string ("category");
- staticpro (&Qlocal_map);
- Qlocal_map = intern_c_string ("local-map");
- staticpro (&Qfront_sticky);
- Qfront_sticky = intern_c_string ("front-sticky");
- staticpro (&Qrear_nonsticky);
- Qrear_nonsticky = intern_c_string ("rear-nonsticky");
- staticpro (&Qmouse_face);
- Qmouse_face = intern_c_string ("mouse-face");
- staticpro (&Qminibuffer_prompt);
- Qminibuffer_prompt = intern_c_string ("minibuffer-prompt");
+ DEFSYM (Qforeground, "foreground");
+ DEFSYM (Qbackground, "background");
+ DEFSYM (Qfont, "font");
+ DEFSYM (Qstipple, "stipple");
+ DEFSYM (Qunderline, "underline");
+ DEFSYM (Qread_only, "read-only");
+ DEFSYM (Qinvisible, "invisible");
+ DEFSYM (Qintangible, "intangible");
+ DEFSYM (Qcategory, "category");
+ DEFSYM (Qlocal_map, "local-map");
+ DEFSYM (Qfront_sticky, "front-sticky");
+ DEFSYM (Qrear_nonsticky, "rear-nonsticky");
+ DEFSYM (Qmouse_face, "mouse-face");
+ DEFSYM (Qminibuffer_prompt, "minibuffer-prompt");
/* Properties that text might use to specify certain actions */
- staticpro (&Qmouse_left);
- Qmouse_left = intern_c_string ("mouse-left");
- staticpro (&Qmouse_entered);
- Qmouse_entered = intern_c_string ("mouse-entered");
- staticpro (&Qpoint_left);
- Qpoint_left = intern_c_string ("point-left");
- staticpro (&Qpoint_entered);
- Qpoint_entered = intern_c_string ("point-entered");
+ DEFSYM (Qmouse_left, "mouse-left");
+ DEFSYM (Qmouse_entered, "mouse-entered");
+ DEFSYM (Qpoint_left, "point-left");
+ DEFSYM (Qpoint_entered, "point-entered");
defsubr (&Stext_properties_at);
defsubr (&Sget_text_property);
defsubr (&Sremove_list_of_text_properties);
defsubr (&Stext_property_any);
defsubr (&Stext_property_not_all);
-/* defsubr (&Serase_text_properties); */
-/* defsubr (&Scopy_text_properties); */
}
HCoop / bpt / emacs.git / blobdiff