/* Definitions and global variables for intervals.
- Copyright (C) 1993-1994, 2000-2011 Free Software Foundation, Inc.
+ Copyright (C) 1993-1994, 2000-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include "dispextern.h"
-#define NULL_INTERVAL ((INTERVAL)0)
-#define INTERVAL_DEFAULT NULL_INTERVAL
+INLINE_HEADER_BEGIN
+#ifndef INTERVALS_INLINE
+# define INTERVALS_INLINE INLINE
+#endif
/* Basic data type for use of intervals. */
unsigned int front_sticky : 1; /* Non-zero means text inserted just
before this interval goes into it. */
unsigned int rear_sticky : 1; /* Likewise for just after it. */
-
- /* Properties of this interval.
- The mark bit on this field says whether this particular interval
- tree node has been visited. Since intervals should never be
- shared, GC aborts if it seems to have visited an interval twice. */
- Lisp_Object plist;
+ Lisp_Object plist; /* Other properties. */
};
-/* These are macros for dealing with the interval tree. */
-
-/* Size of the structure used to represent an interval */
-#define INTERVAL_SIZE (sizeof (struct interval))
-
-/* Size of a pointer to an interval structure */
-#define INTERVAL_PTR_SIZE (sizeof (struct interval *))
+/* These are macros for dealing with the interval tree. */
-#define NULL_INTERVAL_P(i) ((i) == NULL_INTERVAL)
+/* True if this interval has no right child. */
+#define NULL_RIGHT_CHILD(i) ((i)->right == NULL)
-/* True if this interval has no right child. */
-#define NULL_RIGHT_CHILD(i) ((i)->right == NULL_INTERVAL)
+/* True if this interval has no left child. */
+#define NULL_LEFT_CHILD(i) ((i)->left == NULL)
-/* True if this interval has no left child. */
-#define NULL_LEFT_CHILD(i) ((i)->left == NULL_INTERVAL)
-
-/* True if this interval has no parent. */
+/* True if this interval has no 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_PARENT (i) \
- && INTERVAL_PARENT (i)->left == (i))
+/* True if this interval is the left child of some other interval. */
+#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_PARENT (i) \
- && INTERVAL_PARENT (i)->right == (i))
+/* True if this interval is the right child of some other interval. */
+#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 \
- && (i)->right == NULL_INTERVAL)
+/* True if this interval has no children. */
+#define LEAF_INTERVAL_P(i) ((i)->left == NULL && (i)->right == NULL)
-/* True if this interval has no parent and is therefore the root. */
+/* True if this interval has no parent and is therefore the root. */
#define ROOT_INTERVAL_P(i) (NULL_PARENT (i))
-/* True if this interval is the only interval in the interval tree. */
+/* True if this interval is the only interval in the interval tree. */
#define ONLY_INTERVAL_P(i) (ROOT_INTERVAL_P ((i)) && LEAF_INTERVAL_P ((i)))
-/* True if this interval has both left and right children. */
-#define BOTH_KIDS_P(i) ((i)->left != NULL_INTERVAL \
- && (i)->right != NULL_INTERVAL)
+/* True if this interval has both left and right children. */
+#define BOTH_KIDS_P(i) ((i)->left != NULL && (i)->right != NULL)
/* The total size of all text represented by this interval and all its
- children in the tree. This is zero if the interval is null. */
-#define TOTAL_LENGTH(i) ((i) == NULL_INTERVAL ? 0 : (i)->total_length)
+ children in the tree. This is zero if the interval is null. */
+#define TOTAL_LENGTH(i) ((i) == NULL ? 0 : (i)->total_length)
-/* The size of text represented by this interval alone. */
-#define LENGTH(i) ((i) == NULL_INTERVAL ? 0 : (TOTAL_LENGTH ((i)) \
- - TOTAL_LENGTH ((i)->right) \
- - TOTAL_LENGTH ((i)->left)))
+/* The size of text represented by this interval alone. */
+#define LENGTH(i) ((i) == NULL ? 0 : (TOTAL_LENGTH ((i)) \
+ - TOTAL_LENGTH ((i)->right) \
+ - TOTAL_LENGTH ((i)->left)))
/* 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. */
+ the position cache i->position must be valid for this to work. */
#define INTERVAL_LAST_POS(i) ((i)->position + LENGTH ((i)))
-/* The total size of the left subtree of this interval. */
+/* The total size of the left subtree of this interval. */
#define LEFT_TOTAL_LENGTH(i) ((i)->left ? (i)->left->total_length : 0)
-/* The total size of the right subtree of this interval. */
+/* The total size of the right subtree of this interval. */
#define RIGHT_TOTAL_LENGTH(i) ((i)->right ? (i)->right->total_length : 0)
-
-/* These macros are for dealing with the interval properties. */
+/* These macros are for dealing with the interval properties. */
/* True if this is a default interval, which is the same as being null
- or having no properties. */
-#define DEFAULT_INTERVAL_P(i) (NULL_INTERVAL_P (i) || EQ ((i)->plist, Qnil))
+ or having no properties. */
+#define DEFAULT_INTERVAL_P(i) (!i || EQ ((i)->plist, Qnil))
/* Test what type of parent we have. Three possibilities: another
- interval, a buffer or string object, or NULL_INTERVAL. */
+ interval, a buffer or string object, or NULL. */
#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.
+/* Use these macros to 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) \
- ((i)->up_obj = 0, (i)->up.interval = (p))
-#define SET_INTERVAL_OBJECT(i,o) \
- (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)
-#define GET_INTERVAL_OBJECT(d,s) (eassert((s)->up_obj == 1), (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)
+
+#define INTERVAL_PARENT(i) \
+ (eassert ((i) != 0 && (i)->up_obj == 0), (i)->up.interval)
+
+#define GET_INTERVAL_OBJECT(d,s) (eassert ((s)->up_obj == 1), (d) = (s)->up.obj)
+
+/* Use these functions to set Lisp_Object
+ or pointer slots of struct interval. */
+
+INTERVALS_INLINE void
+set_interval_parent (INTERVAL i, INTERVAL parent)
+{
+ i->up_obj = 0;
+ i->up.interval = parent;
+}
+
+INTERVALS_INLINE void
+set_interval_plist (INTERVAL i, Lisp_Object plist)
+{
+ i->plist = plist;
+}
/* 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. */
+ "next" value, and test the result to see if it's NULL. */
#define INTERVAL_PARENT_OR_NULL(i) \
(INTERVAL_HAS_PARENT (i) ? INTERVAL_PARENT (i) : 0)
-/* Abort if interval I's size is negative. */
-#define CHECK_TOTAL_LENGTH(i) \
- do \
- { \
- if ((i)->total_length < 0) \
- abort (); \
- } \
- while (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; \
- SET_INTERVAL_PARENT (i, NULL_INTERVAL); \
- (i)->write_protect = 0; \
- (i)->visible = 0; \
- (i)->front_sticky = (i)->rear_sticky = 0; \
- (i)->plist = Qnil; \
+/* 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; \
+ set_interval_parent (i, NULL); \
+ (i)->write_protect = 0; \
+ (i)->visible = 0; \
+ (i)->front_sticky = (i)->rear_sticky = 0; \
+ set_interval_plist (i, Qnil); \
}
-/* Copy the cached property values of interval FROM to interval TO. */
-#define COPY_INTERVAL_CACHE(from,to) \
-{ \
- (to)->write_protect = (from)->write_protect; \
- (to)->visible = (from)->visible; \
- (to)->front_sticky = (from)->front_sticky; \
- (to)->rear_sticky = (from)->rear_sticky; \
+/* Copy the cached property values of interval FROM to interval TO. */
+#define COPY_INTERVAL_CACHE(from,to) \
+{ \
+ (to)->write_protect = (from)->write_protect; \
+ (to)->visible = (from)->visible; \
+ (to)->front_sticky = (from)->front_sticky; \
+ (to)->rear_sticky = (from)->rear_sticky; \
}
-/* Copy only the set bits of FROM's cache. */
-#define MERGE_INTERVAL_CACHE(from,to) \
-{ \
+/* Copy only the set bits of FROM's cache. */
+#define MERGE_INTERVAL_CACHE(from,to) \
+{ \
if ((from)->write_protect) (to)->write_protect = 1; \
- if ((from)->visible) (to)->visible = 1; \
+ if ((from)->visible) (to)->visible = 1; \
if ((from)->front_sticky) (to)->front_sticky = 1; \
if ((from)->rear_sticky) (to)->rear_sticky = 1; \
}
-/* Macro determining whether the properties of an interval being
- inserted should be merged with the properties of the text where
- they are being inserted. */
-#define MERGE_INSERTIONS(i) 1
-
-/* Macro determining if an invisible interval should be displayed
- as a special glyph, or not at all. */
-#define DISPLAY_INVISIBLE_GLYPH(i) 0
-
-/* Is this interval visible? Replace later with cache access */
+/* Is this interval visible? Replace later with cache access. */
#define INTERVAL_VISIBLE_P(i) \
- (! NULL_INTERVAL_P (i) && NILP (textget ((i)->plist, Qinvisible)))
+ (i && NILP (textget ((i)->plist, Qinvisible)))
-/* Is this interval writable? Replace later with cache access */
+/* Is this interval writable? Replace later with cache access. */
#define INTERVAL_WRITABLE_P(i) \
- (! NULL_INTERVAL_P (i) \
- && (NILP (textget ((i)->plist, Qread_only)) \
- || ((CONSP (Vinhibit_read_only) \
- ? !NILP (Fmemq (textget ((i)->plist, Qread_only), \
- Vinhibit_read_only)) \
- : !NILP (Vinhibit_read_only))))) \
+ (i && (NILP (textget ((i)->plist, Qread_only)) \
+ || ((CONSP (Vinhibit_read_only) \
+ ? !NILP (Fmemq (textget ((i)->plist, Qread_only), \
+ Vinhibit_read_only)) \
+ : !NILP (Vinhibit_read_only))))) \
/* Macros to tell whether insertions before or after this interval
- should stick to it. */
-/* 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) \
- (! 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)))
-
+ should stick to it. Now we have Vtext_property_default_nonsticky,
+ so these macros are unreliable now and never used. */
+
+#if 0
+#define FRONT_STICKY_P(i) \
+ (i && ! NILP (textget ((i)->plist, Qfront_sticky)))
+#define END_NONSTICKY_P(i) \
+ (i && ! NILP (textget ((i)->plist, Qrear_nonsticky)))
+#define FRONT_NONSTICKY_P(i) \
+ (i && ! EQ (Qt, textget ((i)->plist, Qfront_sticky)))
+#endif
/* If PROP is the `invisible' property of a character,
this is 1 if the character should be treated as invisible,
and 2 if it is invisible but with an ellipsis. */
-#define TEXT_PROP_MEANS_INVISIBLE(prop) \
+#define TEXT_PROP_MEANS_INVISIBLE(prop) \
(EQ (BVAR (current_buffer, invisibility_spec), Qt) \
- ? !NILP (prop) \
+ ? !NILP (prop) \
: invisible_p (prop, BVAR (current_buffer, invisibility_spec)))
-/* Declared in alloc.c */
+/* Declared in alloc.c. */
extern INTERVAL make_interval (void);
-/* Declared in intervals.c */
+/* Declared in intervals.c. */
extern INTERVAL create_root_interval (Lisp_Object);
extern void copy_properties (INTERVAL, INTERVAL);
-extern int intervals_equal (INTERVAL, INTERVAL);
+extern bool intervals_equal (INTERVAL, INTERVAL);
extern void traverse_intervals (INTERVAL, ptrdiff_t,
void (*) (INTERVAL, Lisp_Object),
Lisp_Object);
extern INTERVAL merge_interval_left (INTERVAL);
extern void offset_intervals (struct buffer *, ptrdiff_t, ptrdiff_t);
extern void graft_intervals_into_buffer (INTERVAL, ptrdiff_t, ptrdiff_t,
- struct buffer *, int);
+ struct buffer *, bool);
extern void verify_interval_modification (struct buffer *,
ptrdiff_t, ptrdiff_t);
extern INTERVAL balance_intervals (INTERVAL);
extern void copy_intervals_to_string (Lisp_Object, struct buffer *,
ptrdiff_t, ptrdiff_t);
extern INTERVAL copy_intervals (INTERVAL, ptrdiff_t, ptrdiff_t);
-extern int compare_string_intervals (Lisp_Object, Lisp_Object);
+extern bool compare_string_intervals (Lisp_Object, Lisp_Object);
extern Lisp_Object textget (Lisp_Object, Lisp_Object);
-extern Lisp_Object lookup_char_property (Lisp_Object, Lisp_Object, int);
+extern Lisp_Object lookup_char_property (Lisp_Object, Lisp_Object, bool);
extern void move_if_not_intangible (ptrdiff_t);
-extern int get_property_and_range (ptrdiff_t, Lisp_Object, Lisp_Object *,
- ptrdiff_t *, ptrdiff_t *, Lisp_Object);
+extern bool get_property_and_range (ptrdiff_t, Lisp_Object, Lisp_Object *,
+ ptrdiff_t *, ptrdiff_t *, Lisp_Object);
extern Lisp_Object get_local_map (ptrdiff_t, struct buffer *, Lisp_Object);
extern INTERVAL update_interval (INTERVAL, ptrdiff_t);
-extern void set_intervals_multibyte (int);
+extern void set_intervals_multibyte (bool);
extern INTERVAL validate_interval_range (Lisp_Object, Lisp_Object *,
- Lisp_Object *, int);
+ Lisp_Object *, bool);
extern INTERVAL interval_of (ptrdiff_t, Lisp_Object);
-/* Defined in xdisp.c */
+/* Defined in xdisp.c. */
extern int invisible_p (Lisp_Object, Lisp_Object);
-/* Declared in textprop.c */
+/* Declared in textprop.c. */
-/* Types of hooks. */
+/* Types of hooks. */
extern Lisp_Object Qpoint_left;
extern Lisp_Object Qpoint_entered;
extern Lisp_Object Qmodification_hooks;
extern Lisp_Object Qlocal_map;
extern Lisp_Object Qkeymap;
-/* Visual properties text (including strings) may have. */
+/* Visual properties text (including strings) may have. */
extern Lisp_Object Qfont;
extern Lisp_Object Qinvisible, Qintangible;
-/* Sticky properties */
+/* Sticky properties. */
extern Lisp_Object Qfront_sticky, Qrear_nonsticky;
-EXFUN (Fget_char_property, 3);
-EXFUN (Fget_text_property, 3);
-EXFUN (Ftext_properties_at, 2);
-EXFUN (Fnext_property_change, 3);
-EXFUN (Fadd_text_properties, 4);
-EXFUN (Fset_text_properties, 4);
-EXFUN (Fremove_text_properties, 4);
-EXFUN (Fremove_list_of_text_properties, 4);
-EXFUN (Ftext_property_any, 5);
-EXFUN (Fprevious_single_char_property_change, 4);
extern Lisp_Object copy_text_properties (Lisp_Object, Lisp_Object,
Lisp_Object, Lisp_Object,
Lisp_Object, Lisp_Object);
Lisp_Object text_property_list (Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object);
-int add_text_properties_from_list (Lisp_Object, Lisp_Object, Lisp_Object);
+void add_text_properties_from_list (Lisp_Object, Lisp_Object, Lisp_Object);
Lisp_Object extend_property_ranges (Lisp_Object, Lisp_Object);
Lisp_Object get_char_property_and_overlay (Lisp_Object, Lisp_Object,
Lisp_Object, Lisp_Object*);
extern void syms_of_textprop (void);
#include "composite.h"
+
+INLINE_HEADER_END
HCoop / bpt / emacs.git / blobdiff