/* Definitions and global variables for intervals.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#ifdef USE_TEXT_PROPERTIES
#ifndef NORMAL_FACE
/* True if an interval pointer is null, or is a Lisp_Buffer or
Lisp_String pointer (meaning it points to the owner of this
interval tree). */
-#define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL \
- || XTYPE ((Lisp_Object)(i)) == Lisp_Buffer \
- || XTYPE ((Lisp_Object)(i)) == Lisp_String)
+#ifdef NO_UNION_TYPE
+#define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL \
+ || 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)}))
+#endif
/* True if this interval has no right child. */
#define NULL_RIGHT_CHILD(i) ((i)->right == NULL_INTERVAL)
- TOTAL_LENGTH ((i)->right) \
- TOTAL_LENGTH ((i)->left)))
-/* The absolute index of the last character belonging to I. Note that
+/* The position of the character just past the end of I. Note that
the position cache i->position must be valid for this to work. */
-#define INTERVAL_LAST_POS(i) ((i)->position + LENGTH ((i)) - 1)
+#define INTERVAL_LAST_POS(i) ((i)->position + LENGTH ((i)))
/* The total size of the left subtree of this interval. */
#define LEFT_TOTAL_LENGTH(i) ((i)->left ? (i)->left->total_length : 0)
(! NULL_INTERVAL_P (i) && ! NILP (textget ((i)->plist, Qfront_sticky)))
#define END_NONSTICKY_P(i) \
(! NULL_INTERVAL_P (i) && ! NILP (textget ((i)->plist, Qrear_nonsticky)))
+#define FRONT_NONSTICKY_P(i) \
+ (! NULL_INTERVAL_P (i) && ! EQ (Qt, textget ((i)->plist, Qfront_sticky)))
+
+
+/* If PROP is the `invisible' property of a character,
+ this is 1 if the character should be treated as invisible. */
+
+#define TEXT_PROP_MEANS_INVISIBLE(prop) \
+ (EQ (current_buffer->invisibility_spec, Qt) \
+ ? ! NILP (prop) \
+ : invisible_p (prop, current_buffer->invisibility_spec))
+
+/* If PROP is the `invisible' property of a character,
+ this is 1 if the character should be treated as invisible
+ and should have an ellipsis. */
+#define TEXT_PROP_MEANS_INVISIBLE_WITH_ELLIPSIS(prop) \
+ (EQ (current_buffer->invisibility_spec, Qt) \
+ ? 0 \
+ : invisible_ellipsis_p (prop, current_buffer->invisibility_spec))
/* Declared in alloc.c */
-extern INTERVAL make_interval ();
+extern INTERVAL make_interval P_ ((void));
/* Declared in intervals.c */
-extern Lisp_Object interval_balance_threshold;
-
-extern INTERVAL create_root_interval ();
-extern void copy_properties ();
-extern int intervals_equal ();
-extern void traverse_intervals ();
-extern INTERVAL split_interval_right (), split_interval_left ();
-extern INLINE INTERVAL find_interval ();
-extern INTERVAL next_interval (), previous_interval ();
-extern INTERVAL merge_interval_left (), merge_interval_right ();
-extern void delete_interval ();
-extern INLINE void offset_intervals ();
-extern void graft_intervals_into_buffer ();
-extern void set_point ();
-extern INLINE void temp_set_point ();
-extern void verify_interval_modification ();
-extern INTERVAL balance_intervals ();
-extern INLINE void copy_intervals_to_string ();
-extern INTERVAL copy_intervals ();
-extern Lisp_Object textget ();
-extern Lisp_Object textget_direct ();
-extern Lisp_Object get_local_map ();
+extern INTERVAL create_root_interval P_ ((Lisp_Object));
+extern void copy_properties P_ ((INTERVAL, INTERVAL));
+extern int intervals_equal P_ ((INTERVAL, INTERVAL));
+extern void traverse_intervals P_ ((INTERVAL, int, int,
+ void (*) (INTERVAL, Lisp_Object),
+ Lisp_Object));
+extern INTERVAL split_interval_right P_ ((INTERVAL, int));
+extern INTERVAL split_interval_left P_ ((INTERVAL, int));
+extern INTERVAL find_interval P_ ((INTERVAL, int));
+extern INTERVAL next_interval P_ ((INTERVAL));
+extern INTERVAL previous_interval P_ ((INTERVAL));
+extern INTERVAL merge_interval_left P_ ((INTERVAL));
+extern INTERVAL merge_interval_right P_ ((INTERVAL));
+extern void delete_interval P_ ((INTERVAL));
+extern INLINE void offset_intervals P_ ((struct buffer *, int, int));
+extern void graft_intervals_into_buffer P_ ((INTERVAL, int, int,
+ struct buffer *, int));
+extern void set_point P_ ((struct buffer *, int));
+extern INLINE void temp_set_point P_ ((struct buffer *, int));
+extern void set_point_both P_ ((struct buffer *, int, int));
+extern INLINE void temp_set_point_both P_ ((struct buffer *, int, int));
+extern void verify_interval_modification P_ ((struct buffer *, int, int));
+extern INTERVAL balance_intervals P_ ((INTERVAL));
+extern INLINE void copy_intervals_to_string P_ ((Lisp_Object, struct buffer *,
+ int, int));
+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 Lisp_Object get_local_map P_ ((int, struct buffer *));
+extern INTERVAL update_interval P_ ((INTERVAL, int));
+extern void set_intervals_multibyte P_ ((int));
+
+/* Defined in xdisp.c */
+extern int invisible_ellipsis_p P_ ((Lisp_Object, Lisp_Object));
/* Declared in textprop.c */
extern Lisp_Object Qinvisible, Qintangible, Qread_only;
extern Lisp_Object Vinhibit_point_motion_hooks;
+extern Lisp_Object Vdefault_text_properties;
/* Sticky properties */
extern Lisp_Object Qfront_sticky, Qrear_nonsticky;
-extern Lisp_Object Ftext_properties_at ();
-extern Lisp_Object Fnext_property_change (), Fprevious_property_change ();
-extern Lisp_Object Fadd_text_properties (), Fset_text_properties ();
-extern Lisp_Object Fremove_text_properties (), Ferase_text_properties ();
-extern Lisp_Object Ftext_property_any (), Ftext_property_not_all ();
-extern Lisp_Object copy_text_properties ();
+EXFUN (Fget_char_property, 3);
+EXFUN (Fget_text_property, 3);
+EXFUN (Ftext_properties_at, 2);
+EXFUN (Fnext_property_change, 3);
+EXFUN (Fprevious_property_change, 3);
+EXFUN (Fadd_text_properties, 4);
+EXFUN (Fset_text_properties, 4);
+EXFUN (Fremove_text_properties, 4);
+EXFUN (Ftext_property_any, 5);
+EXFUN (Ftext_property_not_all, 5);
+extern Lisp_Object copy_text_properties P_ ((Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object));
extern void syms_of_textprop ();
HCoop / bpt / emacs.git / blobdiff