#include <config.h>
-#include <setjmp.h>
+
+#define INTERVALS_INLINE EXTERN_INLINE
+
#include <intprops.h>
#include "lisp.h"
#include "intervals.h"
static Lisp_Object merge_properties_sticky (Lisp_Object, Lisp_Object);
static INTERVAL merge_interval_right (INTERVAL);
static INTERVAL reproduce_tree (INTERVAL, INTERVAL);
-static INTERVAL reproduce_tree_obj (INTERVAL, Lisp_Object);
\f
/* Utility functions for intervals. */
+/* Use these functions to set Lisp_Object
+ or pointer slots of struct interval. */
+
+static inline void
+set_interval_object (INTERVAL i, Lisp_Object obj)
+{
+ eassert (BUFFERP (obj) || STRINGP (obj));
+ i->up_obj = 1;
+ i->up.obj = obj;
+}
+
+static inline void
+set_interval_left (INTERVAL i, INTERVAL left)
+{
+ i->left = left;
+}
+
+static inline void
+set_interval_right (INTERVAL i, INTERVAL right)
+{
+ i->right = right;
+}
+
+/* Make the parent of D be whatever the parent of S is, regardless
+ of the type. This is used when balancing an interval tree. */
+
+static inline void
+copy_interval_parent (INTERVAL d, INTERVAL s)
+{
+ d->up = s->up;
+ d->up_obj = s->up_obj;
+}
/* Create the root interval of some object, a buffer or string. */
new->total_length = (BUF_Z (XBUFFER (parent))
- BUF_BEG (XBUFFER (parent)));
eassert (0 <= TOTAL_LENGTH (new));
- buffer_set_intervals (XBUFFER (parent), new);
+ set_buffer_intervals (XBUFFER (parent), new);
new->position = BEG;
}
else if (STRINGP (parent))
{
new->total_length = SCHARS (parent);
eassert (0 <= TOTAL_LENGTH (new));
- string_set_intervals (parent, new);
+ set_string_intervals (parent, new);
new->position = 0;
}
- interval_set_object (new, parent);
+ set_interval_object (new, parent);
return new;
}
return;
COPY_INTERVAL_CACHE (source, target);
- interval_set_plist (target, Fcopy_sequence (source->plist));
+ set_interval_plist (target, Fcopy_sequence (source->plist));
}
/* Merge the properties of interval SOURCE into the properties
if (NILP (val))
{
val = XCAR (o);
- interval_set_plist (target, Fcons (sym, Fcons (val, target->plist)));
+ set_interval_plist (target, Fcons (sym, Fcons (val, target->plist)));
}
o = XCDR (o);
}
}
-/* Return 1 if the two intervals have the same properties,
- 0 otherwise. */
+/* Return true if the two intervals have the same properties. */
-int
+bool
intervals_equal (INTERVAL i0, INTERVAL i1)
{
- register Lisp_Object i0_cdr, i0_sym;
- register Lisp_Object i1_cdr, i1_val;
+ Lisp_Object i0_cdr, i0_sym;
+ Lisp_Object i1_cdr, i1_val;
if (DEFAULT_INTERVAL_P (i0) && DEFAULT_INTERVAL_P (i1))
return 1;
i0_sym = XCAR (i0_cdr);
i0_cdr = XCDR (i0_cdr);
if (!CONSP (i0_cdr))
- return 0; /* abort (); */
+ return 0;
i1_val = i1->plist;
while (CONSP (i1_val) && !EQ (XCAR (i1_val), i0_sym))
{
i1_val = XCDR (i1_val);
if (!CONSP (i1_val))
- return 0; /* abort (); */
+ return 0;
i1_val = XCDR (i1_val);
}
i1_cdr = XCDR (i1_cdr);
if (!CONSP (i1_cdr))
- return 0; /* abort (); */
+ return 0;
i1_cdr = XCDR (i1_cdr);
}
if (! ROOT_INTERVAL_P (interval))
{
if (AM_LEFT_CHILD (interval))
- interval_set_left (INTERVAL_PARENT (interval), B);
+ set_interval_left (INTERVAL_PARENT (interval), B);
else
- interval_set_right (INTERVAL_PARENT (interval), B);
+ set_interval_right (INTERVAL_PARENT (interval), B);
}
- interval_copy_parent (B, interval);
+ copy_interval_parent (B, interval);
/* Make B the parent of A */
i = B->right;
- interval_set_right (B, interval);
- interval_set_parent (interval, B);
+ set_interval_right (B, interval);
+ set_interval_parent (interval, B);
/* Make A point to c */
- interval_set_left (interval, i);
+ set_interval_left (interval, i);
if (i)
- interval_set_parent (i, interval);
+ set_interval_parent (i, interval);
/* A's total length is decreased by the length of B and its left child. */
interval->total_length -= B->total_length - LEFT_TOTAL_LENGTH (interval);
if (! ROOT_INTERVAL_P (interval))
{
if (AM_LEFT_CHILD (interval))
- interval_set_left (INTERVAL_PARENT (interval), B);
+ set_interval_left (INTERVAL_PARENT (interval), B);
else
- interval_set_right (INTERVAL_PARENT (interval), B);
+ set_interval_right (INTERVAL_PARENT (interval), B);
}
- interval_copy_parent (B, interval);
+ copy_interval_parent (B, interval);
/* Make B the parent of A */
i = B->left;
- interval_set_left (B, interval);
- interval_set_parent (interval, B);
+ set_interval_left (B, interval);
+ set_interval_parent (interval, B);
/* Make A point to c */
- interval_set_right (interval, i);
+ set_interval_right (interval, i);
if (i)
- interval_set_parent (i, interval);
+ set_interval_parent (i, interval);
/* A's total length is decreased by the length of B and its right child. */
interval->total_length -= B->total_length - RIGHT_TOTAL_LENGTH (interval);
Lisp Object. */
static inline INTERVAL
-balance_possible_root_interval (register INTERVAL interval)
+balance_possible_root_interval (INTERVAL interval)
{
Lisp_Object parent;
- int have_parent = 0;
+ bool have_parent = 0;
if (!INTERVAL_HAS_OBJECT (interval) && !INTERVAL_HAS_PARENT (interval))
return interval;
if (have_parent)
{
if (BUFFERP (parent))
- buffer_set_intervals (XBUFFER (parent), interval);
+ set_buffer_intervals (XBUFFER (parent), interval);
else if (STRINGP (parent))
- string_set_intervals (parent, interval);
+ set_string_intervals (parent, interval);
}
return interval;
INTERVAL i;
eassert (b != NULL);
- i = buffer_get_intervals (b);
+ i = buffer_intervals (b);
if (i)
- buffer_set_intervals (b, balance_an_interval (i));
+ set_buffer_intervals (b, balance_an_interval (i));
}
/* Split INTERVAL into two pieces, starting the second piece at
ptrdiff_t new_length = LENGTH (interval) - offset;
new->position = position + offset;
- interval_set_parent (new, interval);
+ set_interval_parent (new, interval);
if (NULL_RIGHT_CHILD (interval))
{
- interval_set_right (interval, new);
+ set_interval_right (interval, new);
new->total_length = new_length;
eassert (0 <= TOTAL_LENGTH (new));
}
else
{
/* Insert the new node between INTERVAL and its right child. */
- interval_set_right (new, interval->right);
- interval_set_parent (interval->right, new);
- interval_set_right (interval, new);
+ set_interval_right (new, interval->right);
+ set_interval_parent (interval->right, new);
+ set_interval_right (interval, new);
new->total_length = new_length + new->right->total_length;
eassert (0 <= TOTAL_LENGTH (new));
balance_an_interval (new);
new->position = interval->position;
interval->position = interval->position + offset;
- interval_set_parent (new, interval);
+ set_interval_parent (new, interval);
if (NULL_LEFT_CHILD (interval))
{
- interval_set_left (interval, new);
+ set_interval_left (interval, new);
new->total_length = new_length;
eassert (0 <= TOTAL_LENGTH (new));
}
else
{
/* Insert the new node between INTERVAL and its left child. */
- interval_set_left (new, interval->left);
- interval_set_parent (new->left, new);
- interval_set_left (interval, new);
+ set_interval_left (new, interval->left);
+ set_interval_parent (new->left, new);
+ set_interval_left (interval, new);
new->total_length = new_length + new->left->total_length;
eassert (0 <= TOTAL_LENGTH (new));
balance_an_interval (new);
eassert (relative_position <= TOTAL_LENGTH (tree));
- if (!handling_signal)
- tree = balance_possible_root_interval (tree);
+ tree = balance_possible_root_interval (tree);
while (1)
{
adjust_intervals_for_insertion (INTERVAL tree,
ptrdiff_t position, ptrdiff_t length)
{
- register INTERVAL i;
- register INTERVAL temp;
- int eobp = 0;
+ INTERVAL i;
+ INTERVAL temp;
+ bool eobp = 0;
Lisp_Object parent;
ptrdiff_t offset;
RESET_INTERVAL (&newi);
pleft = prev ? prev->plist : Qnil;
pright = i ? i->plist : Qnil;
- interval_set_plist (&newi, merge_properties_sticky (pleft, pright));
+ set_interval_plist (&newi, merge_properties_sticky (pleft, pright));
if (! prev) /* i.e. position == BEG */
{
if (! intervals_equal (i, &newi))
{
i = split_interval_left (i, length);
- interval_set_plist (i, newi.plist);
+ set_interval_plist (i, newi.plist);
}
}
else if (! intervals_equal (prev, &newi))
{
prev = split_interval_right (prev, position - prev->position);
- interval_set_plist (prev, newi.plist);
+ set_interval_plist (prev, newi.plist);
if (i && intervals_equal (prev, i))
merge_interval_right (prev);
}
static Lisp_Object
merge_properties_sticky (Lisp_Object pleft, Lisp_Object pright)
{
- register Lisp_Object props, front, rear;
+ Lisp_Object props, front, rear;
Lisp_Object lfront, lrear, rfront, rrear;
- register Lisp_Object tail1, tail2, sym, lval, rval, cat;
- int use_left, use_right;
- int lpresent;
+ Lisp_Object tail1, tail2, sym, lval, rval, cat;
+ bool use_left, use_right, lpresent;
props = Qnil;
front = Qnil;
this->total_length += migrate_amt;
}
eassert (0 <= TOTAL_LENGTH (this));
- interval_set_left (this, migrate);
- interval_set_parent (migrate, this);
+ set_interval_left (this, migrate);
+ set_interval_parent (migrate, this);
return i->right;
}
GET_INTERVAL_OBJECT (owner, i);
parent = delete_node (i);
if (parent)
- interval_set_object (parent, owner);
+ set_interval_object (parent, owner);
if (BUFFERP (owner))
- buffer_set_intervals (XBUFFER (owner), parent);
+ set_buffer_intervals (XBUFFER (owner), parent);
else if (STRINGP (owner))
- string_set_intervals (owner, parent);
+ set_string_intervals (owner, parent);
else
- abort ();
+ emacs_abort ();
return;
}
parent = INTERVAL_PARENT (i);
if (AM_LEFT_CHILD (i))
{
- interval_set_left (parent, delete_node (i));
+ set_interval_left (parent, delete_node (i));
if (parent->left)
- interval_set_parent (parent->left, parent);
+ set_interval_parent (parent->left, parent);
}
else
{
- interval_set_right (parent, delete_node (i));
+ set_interval_right (parent, delete_node (i));
if (parent->right)
- interval_set_parent (parent->right, parent);
+ set_interval_parent (parent->right, parent);
}
}
\f
adjust_intervals_for_deletion (struct buffer *buffer,
ptrdiff_t start, ptrdiff_t length)
{
- register ptrdiff_t left_to_delete = length;
- register INTERVAL tree = buffer_get_intervals (buffer);
+ ptrdiff_t left_to_delete = length;
+ INTERVAL tree = buffer_intervals (buffer);
Lisp_Object parent;
ptrdiff_t offset;
if (length == TOTAL_LENGTH (tree))
{
- buffer_set_intervals (buffer, NULL);
+ set_buffer_intervals (buffer, NULL);
return;
}
{
left_to_delete -= interval_deletion_adjustment (tree, start - offset,
left_to_delete);
- tree = buffer_get_intervals (buffer);
+ tree = buffer_intervals (buffer);
if (left_to_delete == tree->total_length)
{
- buffer_set_intervals (buffer, NULL);
+ set_buffer_intervals (buffer, NULL);
return;
}
}
/* Make the adjustments necessary to the interval tree of BUFFER to
represent an addition or deletion of LENGTH characters starting
at position START. Addition or deletion is indicated by the sign
- of LENGTH.
-
- The two inline functions (one static) pacify Sun C 5.8, a pre-C99
- compiler that does not allow calling a static function (here,
- adjust_intervals_for_deletion) from a non-static inline function. */
+ of LENGTH. */
void
offset_intervals (struct buffer *buffer, ptrdiff_t start, ptrdiff_t length)
{
- if (!buffer_get_intervals (buffer) || length == 0)
+ if (!buffer_intervals (buffer) || length == 0)
return;
if (length > 0)
- adjust_intervals_for_insertion (buffer_get_intervals (buffer),
+ adjust_intervals_for_insertion (buffer_intervals (buffer),
start, length);
else
{
- IF_LINT (if (length < - TYPE_MAXIMUM (ptrdiff_t)) abort ();)
+ lint_assume (- TYPE_MAXIMUM (ptrdiff_t) <= length);
adjust_intervals_for_deletion (buffer, start, -length);
}
}
/* This must be the rightmost or last interval and cannot
be merged right. The caller should have known. */
- abort ();
+ emacs_abort ();
}
\f
/* Merge interval I with its lexicographic predecessor. The resulting
/* This must be the leftmost or first interval and cannot
be merged left. The caller should have known. */
- abort ();
+ emacs_abort ();
}
\f
+/* Create a copy of SOURCE but with the default value of UP. */
+
+static INTERVAL
+reproduce_interval (INTERVAL source)
+{
+ register INTERVAL target = make_interval ();
+
+ target->total_length = source->total_length;
+ target->position = source->position;
+
+ copy_properties (source, target);
+
+ if (! NULL_LEFT_CHILD (source))
+ set_interval_left (target, reproduce_tree (source->left, target));
+ if (! NULL_RIGHT_CHILD (source))
+ set_interval_right (target, reproduce_tree (source->right, target));
+
+ return target;
+}
+
/* Make an exact copy of interval tree SOURCE which descends from
PARENT. This is done by recursing through SOURCE, copying
the current interval and its properties, and then adjusting
static INTERVAL
reproduce_tree (INTERVAL source, INTERVAL parent)
{
- register INTERVAL t = make_interval ();
-
- memcpy (t, source, sizeof *t);
- copy_properties (source, t);
- interval_set_parent (t, parent);
- if (! NULL_LEFT_CHILD (source))
- interval_set_left (t, reproduce_tree (source->left, t));
- if (! NULL_RIGHT_CHILD (source))
- interval_set_right (t, reproduce_tree (source->right, t));
-
- return t;
+ INTERVAL target = reproduce_interval (source);
+ set_interval_parent (target, parent);
+ return target;
}
static INTERVAL
reproduce_tree_obj (INTERVAL source, Lisp_Object parent)
{
- register INTERVAL t = make_interval ();
-
- memcpy (t, source, sizeof *t);
- copy_properties (source, t);
- interval_set_object (t, parent);
- if (! NULL_LEFT_CHILD (source))
- interval_set_left (t, reproduce_tree (source->left, t));
- if (! NULL_RIGHT_CHILD (source))
- interval_set_right (t, reproduce_tree (source->right, t));
-
- return t;
+ INTERVAL target = reproduce_interval (source);
+ set_interval_object (target, parent);
+ return target;
}
\f
/* Insert the intervals of SOURCE into BUFFER at POSITION.
cases -- either insertion happened in the middle of some interval,
or between two intervals.
- If the text goes into the middle of an interval, then new
- intervals are created in the middle with only the properties of
- the new text, *unless* the macro MERGE_INSERTIONS is true, in
- which case the new text has the union of its properties and those
- of the text into which it was inserted.
+ If the text goes into the middle of an interval, then new intervals
+ are created in the middle, and new text has the union of its properties
+ and those of the text into which it was inserted.
If the text goes between two intervals, then if neither interval
had its appropriate sticky property set (front_sticky, rear_sticky),
void
graft_intervals_into_buffer (INTERVAL source, ptrdiff_t position,
ptrdiff_t length, struct buffer *buffer,
- int inherit)
+ bool inherit)
{
- register INTERVAL under, over, this;
- register INTERVAL tree;
+ INTERVAL tree = buffer_intervals (buffer);
+ INTERVAL under, over, this;
ptrdiff_t over_used;
- tree = buffer_get_intervals (buffer);
-
/* If the new text has no properties, then with inheritance it
becomes part of whatever interval it was inserted into.
To prevent inheritance, we must clear out the properties
eassert (length == TOTAL_LENGTH (source));
if ((BUF_Z (buffer) - BUF_BEG (buffer)) == length)
- {
+ {
/* The inserted text constitutes the whole buffer, so
simply copy over the interval structure. */
Lisp_Object buf;
XSETBUFFER (buf, buffer);
- buffer_set_intervals (buffer, reproduce_tree_obj (source, buf));
- buffer_get_intervals (buffer)->position = BUF_BEG (buffer);
- eassert (buffer_get_intervals (buffer)->up_obj == 1);
+ set_buffer_intervals (buffer, reproduce_tree_obj (source, buf));
+ buffer_intervals (buffer)->position = BUF_BEG (buffer);
+ eassert (buffer_intervals (buffer)->up_obj == 1);
return;
}
else if (!tree)
}
Lisp_Object
-lookup_char_property (Lisp_Object plist, register Lisp_Object prop, int textprop)
+lookup_char_property (Lisp_Object plist, Lisp_Object prop, bool textprop)
{
- register Lisp_Object tail, fallback = Qnil;
+ Lisp_Object tail, fallback = Qnil;
for (tail = plist; CONSP (tail); tail = Fcdr (XCDR (tail)))
{
/* If there's an invisible character at position POS + TEST_OFFS in the
current buffer, and the invisible property has a `stickiness' such that
inserting a character at position POS would inherit the property it,
- return POS + ADJ, otherwise return POS. If TEST_INTANG is non-zero,
- then intangibility is required as well as invisibility.
+ return POS + ADJ, otherwise return POS. If TEST_INTANG, intangibility
+ is required as well as invisibility.
TEST_OFFS should be either 0 or -1, and ADJ should be either 1 or -1.
static ptrdiff_t
adjust_for_invis_intang (ptrdiff_t pos, ptrdiff_t test_offs, ptrdiff_t adj,
- int test_intang)
+ bool test_intang)
{
Lisp_Object invis_propval, invis_overlay;
Lisp_Object test_pos;
initial position is the same as the destination, in the rare
instances where this is important, e.g. in line-move-finish
(simple.el). */
- int backwards = (charpos < old_position ? 1 : 0);
- int have_overlays;
+ bool backwards = charpos < old_position;
+ bool have_overlays;
ptrdiff_t original_position;
- BVAR (current_buffer, point_before_scroll) = Qnil;
+ bset_point_before_scroll (current_buffer, Qnil);
if (charpos == PT)
return;
whether or not there are intervals in the buffer. */
eassert (charpos <= ZV && charpos >= BEGV);
- have_overlays = (current_buffer->overlays_before
- || current_buffer->overlays_after);
+ have_overlays = buffer_has_overlays ();
/* If we have no text properties and overlays,
then we can do it quickly. */
- if (!buffer_get_intervals (current_buffer) && ! have_overlays)
+ if (!buffer_intervals (current_buffer) && ! have_overlays)
{
temp_set_point_both (current_buffer, charpos, bytepos);
return;
/* Set TO to the interval containing the char after CHARPOS,
and TOPREV to the interval containing the char before CHARPOS.
Either one may be null. They may be equal. */
- to = find_interval (buffer_get_intervals (current_buffer), charpos);
+ to = find_interval (buffer_intervals (current_buffer), charpos);
if (charpos == BEGV)
toprev = 0;
else if (to && to->position == charpos)
and FROMPREV to the interval containing the char before PT.
Either one may be null. They may be equal. */
/* We could cache this and save time. */
- from = find_interval (buffer_get_intervals (current_buffer), buffer_point);
+ from = find_interval (buffer_intervals (current_buffer), buffer_point);
if (buffer_point == BEGV)
fromprev = 0;
else if (from && from->position == PT)
/* Set TO to the interval containing the char after CHARPOS,
and TOPREV to the interval containing the char before CHARPOS.
Either one may be null. They may be equal. */
- to = find_interval (buffer_get_intervals (current_buffer), charpos);
+ to = find_interval (buffer_intervals (current_buffer), charpos);
if (charpos == BEGV)
toprev = 0;
else if (to && to->position == charpos)
\f
/* If text at position POS has property PROP, set *VAL to the property
value, *START and *END to the beginning and end of a region that
- has the same property, and return 1. Otherwise return 0.
+ has the same property, and return true. Otherwise return false.
OBJECT is the string or buffer to look for the property in;
nil means the current buffer. */
-int
+bool
get_property_and_range (ptrdiff_t pos, Lisp_Object prop, Lisp_Object *val,
ptrdiff_t *start, ptrdiff_t *end, Lisp_Object object)
{
INTERVAL i, prev, next;
if (NILP (object))
- i = find_interval (buffer_get_intervals (current_buffer), pos);
+ i = find_interval (buffer_intervals (current_buffer), pos);
else if (BUFFERP (object))
- i = find_interval (buffer_get_intervals (XBUFFER (object)), pos);
+ i = find_interval (buffer_intervals (XBUFFER (object)), pos);
else if (STRINGP (object))
- i = find_interval (string_get_intervals (object), pos);
+ i = find_interval (string_intervals (object), pos);
else
- abort ();
+ emacs_abort ();
if (!i || (i->position + LENGTH (i) <= pos))
return 0;
/* Perhaps we should just change `position' to the limit. */
if (position > BUF_ZV (buffer) || position < BUF_BEGV (buffer))
- abort ();
+ emacs_abort ();
/* Ignore narrowing, so that a local map continues to be valid even if
the visible region contains no characters and hence no properties. */
copy_intervals_to_string (Lisp_Object string, struct buffer *buffer,
ptrdiff_t position, ptrdiff_t length)
{
- INTERVAL interval_copy = copy_intervals (buffer_get_intervals (buffer),
+ INTERVAL interval_copy = copy_intervals (buffer_intervals (buffer),
position, length);
if (!interval_copy)
return;
- interval_set_object (interval_copy, string);
- string_set_intervals (string, interval_copy);
+ set_interval_object (interval_copy, string);
+ set_string_intervals (string, interval_copy);
}
\f
-/* Return 1 if strings S1 and S2 have identical properties; 0 otherwise.
+/* Return true if strings S1 and S2 have identical properties.
Assume they have identical characters. */
-int
+bool
compare_string_intervals (Lisp_Object s1, Lisp_Object s2)
{
INTERVAL i1, i2;
ptrdiff_t pos = 0;
ptrdiff_t end = SCHARS (s1);
- i1 = find_interval (string_get_intervals (s1), 0);
- i2 = find_interval (string_get_intervals (s2), 0);
+ i1 = find_interval (string_intervals (s1), 0);
+ i2 = find_interval (string_intervals (s2), 0);
while (pos < end)
{
START_BYTE ... END_BYTE in bytes. */
static void
-set_intervals_multibyte_1 (INTERVAL i, int multi_flag,
+set_intervals_multibyte_1 (INTERVAL i, bool multi_flag,
ptrdiff_t start, ptrdiff_t start_byte,
ptrdiff_t end, ptrdiff_t end_byte)
{
{
if ((i)->left)
{
- interval_set_plist (i, i->left->plist);
+ set_interval_plist (i, i->left->plist);
(i)->left->total_length = 0;
delete_interval ((i)->left);
}
else
{
- interval_set_plist (i, i->right->plist);
+ set_interval_plist (i, i->right->plist);
(i)->right->total_length = 0;
delete_interval ((i)->right);
}
}
/* Update the intervals of the current buffer
- to fit the contents as multibyte (if MULTI_FLAG is 1)
- or to fit them as non-multibyte (if MULTI_FLAG is 0). */
+ to fit the contents as multibyte (if MULTI_FLAG)
+ or to fit them as non-multibyte (if not MULTI_FLAG). */
void
-set_intervals_multibyte (int multi_flag)
+set_intervals_multibyte (bool multi_flag)
{
- INTERVAL i = buffer_get_intervals (current_buffer);
+ INTERVAL i = buffer_intervals (current_buffer);
if (i)
set_intervals_multibyte_1 (i, multi_flag, BEG, BEG_BYTE, Z, Z_BYTE);
HCoop / bpt / emacs.git / blobdiff