the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#ifdef USE_TEXT_PROPERTIES
#ifndef NORMAL_FACE
#include "dispextern.h"
#endif
-#define NULL_INTERVAL 0
+#define NULL_INTERVAL ((INTERVAL)0)
#define INTERVAL_DEFAULT NULL_INTERVAL
/* These are macros for dealing with the interval tree. */
Lisp_String pointer (meaning it points to the owner of this
interval tree). */
#ifdef NO_UNION_TYPE
-#define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL \
- || BUFFERP ((Lisp_Object)(i)) \
- || STRINGP ((Lisp_Object)(i)))
+#define INT_LISPLIKE(i) (BUFFERP ((Lisp_Object)(i)) \
+ || STRINGP ((Lisp_Object)(i)))
#else
-#define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL \
- || BUFFERP ((Lisp_Object){(EMACS_INT)(i)}) \
- || STRINGP ((Lisp_Object){(EMACS_INT)(i)}))
+#define INT_LISPLIKE(i) (BUFFERP ((Lisp_Object){(EMACS_INT)(i)}) \
+ || STRINGP ((Lisp_Object){(EMACS_INT)(i)}))
#endif
+#define NULL_INTERVAL_P(i) (CHECK(!INT_LISPLIKE(i),"non-interval"),(i) == NULL_INTERVAL)
+/* old #define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL || INT_LISPLIKE (i)) */
/* True if this interval has no right child. */
#define NULL_RIGHT_CHILD(i) ((i)->right == NULL_INTERVAL)
#define NULL_LEFT_CHILD(i) ((i)->left == NULL_INTERVAL)
/* True if this interval has no parent. */
-#define NULL_PARENT(i) (NULL_INTERVAL_P ((i)->parent))
+#define NULL_PARENT(i) ((i)->up_obj || (i)->up.interval == 0)
/* True if this interval is the left child of some other interval. */
-#define AM_LEFT_CHILD(i) (! NULL_INTERVAL_P ((i)->parent) \
- && (i)->parent->left == (i))
+#define AM_LEFT_CHILD(i) (! NULL_PARENT (i) \
+ && INTERVAL_PARENT (i)->left == (i))
/* True if this interval is the right child of some other interval. */
-#define AM_RIGHT_CHILD(i) (! NULL_INTERVAL_P ((i)->parent) \
- && (i)->parent->right == (i))
+#define AM_RIGHT_CHILD(i) (! NULL_PARENT (i) \
+ && INTERVAL_PARENT (i)->right == (i))
/* True if this interval has no children. */
#define LEAF_INTERVAL_P(i) ((i)->left == NULL_INTERVAL \
or having no properties. */
#define DEFAULT_INTERVAL_P(i) (NULL_INTERVAL_P (i) || EQ ((i)->plist, Qnil))
+/* Test what type of parent we have. Three possibilities: another
+ interval, a buffer or string object, or NULL_INTERVAL. */
+#define INTERVAL_HAS_PARENT(i) ((i)->up_obj == 0 && (i)->up.interval != 0)
+#define INTERVAL_HAS_OBJECT(i) ((i)->up_obj)
+
+/* Set/get parent of an interval.
+
+ The choice of macros is dependent on the type needed. Don't add
+ casts to get around this, it will break some development work in
+ progress. */
+#define SET_INTERVAL_PARENT(i,p) (eassert (!BUFFERP ((Lisp_Object)(p)) && !STRINGP ((Lisp_Object)(p))),(i)->up_obj = 0, (i)->up.interval = (p))
+#define SET_INTERVAL_OBJECT(i,o) (eassert ((o) != 0), eassert (BUFFERP (o) || STRINGP (o)),(i)->up_obj = 1, (i)->up.obj = (o))
+#define INTERVAL_PARENT(i) (eassert((i) != 0 && (i)->up_obj == 0),(i)->up.interval)
+/* Because XSETFASTINT has to be used, this can't simply be
+ value-returning. */
+#define GET_INTERVAL_OBJECT(d,s) (eassert((s)->up_obj == 1),XSETFASTINT ((d), (s)->up.obj))
+
+/* Make the parent of D be whatever the parent of S is, regardless of
+ type. This is used when balancing an interval tree. */
+#define COPY_INTERVAL_PARENT(d,s) ((d)->up = (s)->up, (d)->up_obj = (s)->up_obj)
+
+/* Get the parent interval, if any, otherwise a null pointer. Useful
+ for walking up to the root in a "for" loop; use this to get the
+ "next" value, and test the result to see if it's NULL_INTERVAL. */
+#define INTERVAL_PARENT_OR_NULL(i) (INTERVAL_HAS_PARENT (i) ? INTERVAL_PARENT (i) : 0)
+
/* Reset this interval to its vanilla, or no-property state. */
#define RESET_INTERVAL(i) \
{ \
(i)->total_length = (i)->position = 0; \
(i)->left = (i)->right = NULL_INTERVAL; \
- (i)->parent = NULL_INTERVAL; \
+ SET_INTERVAL_PARENT (i, NULL_INTERVAL); \
(i)->write_protect = 0; \
(i)->visible = 0; \
(i)->front_sticky = (i)->rear_sticky = 0; \
/* Replace later with cache access */
/*#define FRONT_STICKY_P(i) ((i)->front_sticky != 0)
#define END_STICKY_P(i) ((i)->rear_sticky != 0)*/
+/* As we now have Vtext_property_default_nonsticky, these macros are
+ unreliable now. Currently, they are never used. */
#define FRONT_STICKY_P(i) \
(! NULL_INTERVAL_P (i) && ! NILP (textget ((i)->plist, Qfront_sticky)))
#define END_NONSTICKY_P(i) \
extern INTERVAL copy_intervals P_ ((INTERVAL, int, int));
extern Lisp_Object textget P_ ((Lisp_Object, Lisp_Object));
extern void move_if_not_intangible P_ ((int));
+extern int get_property_and_range P_ ((int, Lisp_Object, Lisp_Object *,
+ int *, int *, Lisp_Object));
extern Lisp_Object get_local_map P_ ((int, struct buffer *));
extern INTERVAL update_interval P_ ((INTERVAL, int));
extern void set_intervals_multibyte P_ ((int));
extern Lisp_Object Vinhibit_point_motion_hooks;
extern Lisp_Object Vdefault_text_properties;
+extern Lisp_Object Vtext_property_default_nonsticky;
/* Sticky properties */
extern Lisp_Object Qfront_sticky, Qrear_nonsticky;
extern void syms_of_textprop ();
-#else /* don't support text properties */
-
-#define NULL_INTERVAL_P(i) 1
-#define INTERVAL_SIZE 0
-#define INTERVAL_PTR_SIZE 0
-
-#define copy_intervals_to_string(string,buffer,position,length)
-#define verify_interval_modification(buffer,start,end)
-#define insert_interval_copy(source,position,end,sink,at)
-#define graft_intervals_into_buffer(tree,position,bufferptr)
-#define offset_intervals(buffer,position,length)
-#define copy_intervals(tree,start,length)
-
-#define syms_of_textprop()
-
-#endif /* don't support text properties */
+#include "composite.h"
HCoop / bpt / emacs.git / blobdiff