/* Definitions and global variables for intervals.
- Copyright (C) 1993-1994, 2000-2012 Free Software Foundation, Inc.
+ Copyright (C) 1993-1994, 2000-2014 Free Software Foundation, Inc.
This file is part of GNU Emacs.
INLINE_HEADER_BEGIN
-#define NULL_INTERVAL ((INTERVAL)0)
-#define INTERVAL_DEFAULT NULL_INTERVAL
-
/* Basic data type for use of intervals. */
struct interval
struct interval *interval;
Lisp_Object obj;
} up;
- unsigned int up_obj : 1;
+ bool_bf up_obj : 1;
- unsigned gcmarkbit : 1;
+ bool_bf gcmarkbit : 1;
/* The remaining components are `properties' of the interval.
The first four are duplicates for things which can be on the list,
for purposes of speed. */
- unsigned int write_protect : 1; /* Non-zero means can't modify. */
- unsigned int visible : 1; /* Zero means don't display. */
- unsigned int front_sticky : 1; /* Non-zero means text inserted just
+ bool_bf write_protect : 1; /* True means can't modify. */
+ bool_bf visible : 1; /* False means don't display. */
+ bool_bf front_sticky : 1; /* True means text inserted just
before this interval goes into it. */
- unsigned int rear_sticky : 1; /* Likewise for just after it. */
+ bool_bf rear_sticky : 1; /* Likewise for just after it. */
Lisp_Object plist; /* Other properties. */
};
/* 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_INTERVAL)
+#define NULL_RIGHT_CHILD(i) ((i)->right == NULL)
/* True if this interval has no left child. */
-#define NULL_LEFT_CHILD(i) ((i)->left == NULL_INTERVAL)
+#define NULL_LEFT_CHILD(i) ((i)->left == NULL)
/* 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))
+#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))
+#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)
+#define LEAF_INTERVAL_P(i) ((i)->left == NULL && (i)->right == NULL)
/* True if this interval has no parent and is therefore the root. */
#define ROOT_INTERVAL_P(i) (NULL_PARENT (i))
#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)
+#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)
+#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)))
+#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 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. */
/* 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))
+#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. */
-#define INTERVAL_HAS_PARENT(i) ((i)->up_obj == 0 && (i)->up.interval != 0)
+ interval, a buffer or string object, or NULL. */
+#define INTERVAL_HAS_PARENT(i) (! (i)->up_obj && (i)->up.interval != 0)
#define INTERVAL_HAS_OBJECT(i) ((i)->up_obj)
/* Use these macros to get parent of an interval.
progress. */
#define INTERVAL_PARENT(i) \
- (eassert ((i) != 0 && (i)->up_obj == 0), (i)->up.interval)
+ (eassert ((i) != 0 && ! (i)->up_obj), (i)->up.interval)
-#define GET_INTERVAL_OBJECT(d,s) (eassert ((s)->up_obj == 1), (d) = (s)->up.obj)
+#define GET_INTERVAL_OBJECT(d,s) (eassert ((s)->up_obj), (d) = (s)->up.obj)
/* Use these functions to set Lisp_Object
or pointer slots of struct interval. */
-LISP_INLINE void
-interval_set_parent (INTERVAL i, INTERVAL parent)
-{
- i->up_obj = 0;
- i->up.interval = parent;
-}
-
-LISP_INLINE void
-interval_set_object (INTERVAL i, Lisp_Object obj)
+INLINE void
+set_interval_object (INTERVAL i, Lisp_Object obj)
{
eassert (BUFFERP (obj) || STRINGP (obj));
i->up_obj = 1;
i->up.obj = obj;
}
-LISP_INLINE void
-interval_set_left (INTERVAL i, INTERVAL left)
+INLINE void
+set_interval_parent (INTERVAL i, INTERVAL parent)
{
- i->left = left;
-}
-
-LISP_INLINE void
-interval_set_right (INTERVAL i, INTERVAL right)
-{
- i->right = right;
+ i->up_obj = false;
+ i->up.interval = parent;
}
-LISP_INLINE Lisp_Object
-interval_set_plist (INTERVAL i, Lisp_Object plist)
+INLINE void
+set_interval_plist (INTERVAL i, Lisp_Object plist)
{
i->plist = plist;
- return plist;
-}
-
-/* Make the parent of D be whatever the parent of S is, regardless
- of the type. This is used when balancing an interval tree. */
-
-LISP_INLINE void
-interval_copy_parent (INTERVAL d, INTERVAL 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. */
+ "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)
/* Reset this interval to its vanilla, or no-property state. */
#define RESET_INTERVAL(i) \
-{ \
+ do { \
(i)->total_length = (i)->position = 0; \
- (i)->left = (i)->right = NULL_INTERVAL; \
- interval_set_parent (i, NULL_INTERVAL); \
- (i)->write_protect = 0; \
- (i)->visible = 0; \
- (i)->front_sticky = (i)->rear_sticky = 0; \
- interval_set_plist (i, Qnil); \
-}
+ (i)->left = (i)->right = NULL; \
+ set_interval_parent (i, NULL); \
+ (i)->write_protect = false; \
+ (i)->visible = false; \
+ (i)->front_sticky = (i)->rear_sticky = false; \
+ set_interval_plist (i, Qnil); \
+ } while (false)
/* Copy the cached property values of interval FROM to interval TO. */
#define COPY_INTERVAL_CACHE(from,to) \
-{ \
+ do { \
(to)->write_protect = (from)->write_protect; \
(to)->visible = (from)->visible; \
(to)->front_sticky = (from)->front_sticky; \
(to)->rear_sticky = (from)->rear_sticky; \
-}
+ } while (false)
/* 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)->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
+#define MERGE_INTERVAL_CACHE(from,to) \
+ do { \
+ if ((from)->write_protect) (to)->write_protect = true; \
+ if ((from)->visible) (to)->visible = true; \
+ if ((from)->front_sticky) (to)->front_sticky = true; \
+ if ((from)->rear_sticky) (to)->rear_sticky = true; \
+ } while (false)
/* 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. */
#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 false
+#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. */
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. */
extern Lisp_Object Qmodification_hooks;
extern Lisp_Object Qcategory;
extern Lisp_Object Qlocal_map;
-extern Lisp_Object Qkeymap;
/* Visual properties text (including strings) may have. */
-extern Lisp_Object Qfont;
extern Lisp_Object Qinvisible, Qintangible;
/* Sticky properties. */
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 int text_property_stickiness (Lisp_Object prop, Lisp_Object pos,
Lisp_Object buffer);
-extern Lisp_Object get_pos_property (Lisp_Object pos, Lisp_Object prop,
- Lisp_Object object);
extern void syms_of_textprop (void);
HCoop / bpt / emacs.git / blobdiff