1 /* textprop.c -- text property module.
2 Copyright (C) 2003, 2004
3 National Institute of Advanced Industrial Science and Technology (AIST)
4 Registration Number H15PRO112
6 This file is part of the m17n library.
8 The m17n library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public License
10 as published by the Free Software Foundation; either version 2.1 of
11 the License, or (at your option) any later version.
13 The m17n library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with the m17n library; if not, write to the Free
20 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 @addtogroup m17nTextProperty
25 @brief Function to handle text properties.
27 Each character in an M-text can have properties called @e text @e
28 properties. Text properties store various kinds of information
29 attached to parts of an M-text to provide application programs
30 with a unified view of those information. As rich information can
31 be stored in M-texts in the form of text properties, functions in
32 application programs can be simple.
34 A text property consists of a @e key and @e values, where key is a
35 symbol and values are anything that can be cast to <tt>(void *)
36 </tt>. Unlike other types of properties, a text property can
37 have multiple values. "The text property whose key is K" may be
38 shortened to "K property". */
41 @addtogroup m17nTextProperty
42 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÁàºî¤¹¤ë¤¿¤á¤Î´Ø¿ô.
44 M-text Æâ¤Î³Æʸ»ú¤Ï¡¢@e ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ ¤È¸Æ¤Ð¤ì¤ë¥×¥í¥Ñ¥Æ¥£¤ò
45 »ý¤Ä¤³¤È¤¬¤Ç¤¤ë¡£¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¡¢M-text ¤Î³ÆÉô°Ì¤ËÉղ䵤ì
46 ¤¿¤µ¤Þ¤¶¤Þ¤Ê¾ðÊó¤òÊÝ»ý¤·¤Æ¤ª¤ê¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ï¤½¤ì¤é
47 ¤Î¾ðÊó¤òÅý°ìŪ¤Ë°·¤¦¤³¤È¤¬¤Ç¤¤ë¡£M-text ¼«ÂΤ¬ËÉ٤ʾðÊó¤ò»ý¤Ä¤¿
48 ¤á¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥àÃæ¤Î´Ø¿ô¤ò´ÊÁDz½¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
50 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï @e ¥¡¼ ¤È @e ÃÍ ¤«¤é¤Ê¤ë¡£¥¡¼¤Ï¥·¥ó¥Ü¥ë¤Ç¤¢
51 ¤ê¡¢ÃÍ¤Ï <tt>(void *)</tt> ·¿¤Ë¥¥ã¥¹¥È¤Ç¤¤ë¤â¤Î¤Ê¤é²¿¤Ç¤â¤è¤¤¡£
52 ¾¤Î¥¿¥¤¥×¤Î¥×¥í¥Ñ¥Æ¥£¤È°Û¤Ê¤ê¡¢°ì¤Ä¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬Ê£¿ô¤ÎÃÍ
53 ¤ò»ý¤Ä¤³¤È¤¬µö¤µ¤ì¤ë¡£¡Ö¥¡¼¤¬ K ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¡×¤Î¤³¤È
54 ¤ò´Êñ¤Ë¡ÖK ¥×¥í¥Ñ¥Æ¥£¡×¤È¸Æ¤Ö¤³¤È¤¬¤¢¤ë¡£ */
58 #if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
59 /*** @addtogroup m17nInternal
68 #include <libxml/tree.h>
69 #include <libxml/parser.h>
70 #include <libxml/xmlmemory.h>
71 #include <libxml/xpath.h>
75 #include "m17n-misc.h"
81 #define TEXT_PROP_DEBUG
84 #ifdef TEXT_PROP_DEBUG
85 #define xassert(X) do {if (!(X)) mdebug_hook ();} while (0)
87 #define xassert(X) (void) 0
88 #endif /* not FONTSET_DEBUG */
90 /* Hierarchy of objects (MText, MTextPlist, MInterval, MTextProperty)
94 +--> MTextPlist -> MTextPlist -> ... -> MTextPlist
96 | +- tail <-----------------------------------------+
98 | +- head <--> MInterval <--> ... <--> MInterval <--+
100 +- tail --------------------------------------------------------+
102 +- head --> MInterval <--> MInterval <--> ... <--> MInterval <--+
104 +---------------+------------> MTextProperty
111 MTextProperty a/A [AAAAAAAAAAAAAAAAAAAAA]
112 MTextProperty a/B [BBBBBBBBBBBBBBBBB]
113 MTextPlist a |--intvl1--|-intvl2-|-intvl3-|---intvl4---|-intvl5-|
116 MTextProperty b/A [AAAAAAAAAA]
117 MTextProperty b/B [BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB]
118 MTextPlist b |-intvl1-|--intvl2--|--intvl3--|-intvl4-|--intvl5--|
120 M-text |--------------------------------------------------|
126 /* The structure MTextProperty is defined in textprop.h. */
128 /** MInterval is the structure for an interval that holds text
129 properties of the same key in a specific range of M-text.
130 All intervals are stored in MIntervalPool. */
132 typedef struct MInterval MInterval;
136 /** Stack of pointers to text properties. If the interval does not
137 have any text properties, this member is NULL or contains random
139 MTextProperty **stack;
141 /** How many values are in <stack>. */
144 /** Length of <stack>. */
147 /** Start and end character positions of the interval. If <end> is
148 negative, this interval is not in use. */
151 /** Pointers to the previous and next intervals. If <start> is 0,
152 <prev> is NULL and this interval is pointed by MTextPlist->head.
153 If <end> is the size of the M-text, <next> is NULL, and this
154 interval is pointed by MTextPlist->tail. */
155 MInterval *prev, *next;
158 /** MTextPlist is a structure to hold text properties of an M-text by
159 chain. Each element in the chain is for a specific key. */
161 typedef struct MTextPlist MTextPlist;
165 /** Key of the property. */
168 /** The head and tail intervals. <head>->start is always 0.
169 <tail->end is always MText->nchars. */
170 MInterval *head, *tail;
172 /** Lastly accessed interval. */
175 /* Not yet implemented. */
176 int (*modification_hook) (MText *mt, MSymbol key, int from, int to);
178 /** Pointer to the next property in the chain, or NULL if the
179 property is the last one in the chain. */
184 /** How many intervals one interval-pool can contain. */
186 #define INTERVAL_POOL_SIZE 1024
188 typedef struct MIntervalPool MIntervalPool;
191 /** MIntervalPool is the structure for an interval-pool which store
192 intervals. Each interval-pool contains INTERVAL_POOL_SIZE number
193 of intervals, and is chained from the root #interval_pool. */
197 /** Array of intervals. */
198 MInterval intervals[INTERVAL_POOL_SIZE];
200 /** The smallest index to an unused interval. */
203 /** Pointer to the next interval-pool. */
208 /** Root of interval-pools. */
210 static MIntervalPool interval_pool_root;
214 static M17NObjectArray text_property_table;
216 /** Return a newly allocated interval pool. */
218 static MIntervalPool *
224 MSTRUCT_CALLOC (pool, MERROR_TEXTPROP);
225 for (i = 0; i < INTERVAL_POOL_SIZE; i++)
226 pool->intervals[i].end = -1;
233 /** Return a new interval for the region START and END. */
236 new_interval (int start, int end)
241 for (pool = &interval_pool_root;
242 pool->free_slot >= INTERVAL_POOL_SIZE;
246 pool->next = new_interval_pool ();
249 interval = &(pool->intervals[pool->free_slot]);
250 interval->stack = NULL;
251 interval->nprops = 0;
252 interval->stack_length = 0;
253 interval->prev = interval->next = NULL;
254 interval->start = start;
258 while (pool->free_slot < INTERVAL_POOL_SIZE
259 && pool->intervals[pool->free_slot].end >= 0)
266 /** Free INTERVAL and return INTERVAL->next. It assumes that INTERVAL
267 has no properties. */
270 free_interval (MInterval *interval)
272 MIntervalPool *pool = &interval_pool_root;
275 xassert (interval->nprops == 0);
277 free (interval->stack);
278 while ((interval < pool->intervals
279 || interval >= pool->intervals + INTERVAL_POOL_SIZE)
283 i = interval - pool->intervals;
285 if (i < pool->free_slot)
287 return interval->next;
291 /** If necessary, allocate a stack for INTERVAL so that it can contain
292 NUM number of text properties. */
294 #define PREPARE_INTERVAL_STACK(interval, num) \
296 if ((num) > (interval)->stack_length) \
298 MTABLE_REALLOC ((interval)->stack, (num), MERROR_TEXTPROP); \
299 (interval)->stack_length = (num); \
304 /** Return a copy of INTERVAL. The copy still shares text properties
305 with INTERVAL. If MASK_BITS is not zero, don't copy such text
306 properties whose control flags contains bits in MASK_BITS. */
309 copy_interval (MInterval *interval, int mask_bits)
311 MInterval *new = new_interval (interval->start, interval->end);
312 int nprops = interval->nprops;
313 MTextProperty **props = alloca (sizeof (MTextProperty *) * nprops);
316 for (i = n = 0; i < nprops; i++)
317 if (! (interval->stack[i]->control.flag & mask_bits))
318 props[n++] = interval->stack[i];
322 PREPARE_INTERVAL_STACK (new, n);
323 memcpy (new->stack, props, sizeof (MTextProperty *) * n);
330 /** Free text property OBJECT. */
333 free_text_property (void *object)
335 MTextProperty *prop = (MTextProperty *) object;
337 if (prop->key->managing_key)
338 M17N_OBJECT_UNREF (prop->val);
339 M17N_OBJECT_UNREGISTER (text_property_table, prop);
344 /** Return a newly allocated text property whose key is KEY and value
347 static MTextProperty *
348 new_text_property (MText *mt, int from, int to, MSymbol key, void *val,
353 M17N_OBJECT (prop, free_text_property, MERROR_TEXTPROP);
354 prop->control.flag = control_bits;
355 prop->attach_count = 0;
361 if (key->managing_key)
362 M17N_OBJECT_REF (val);
363 M17N_OBJECT_REGISTER (text_property_table, prop);
368 /** Return a newly allocated copy of text property PROP. */
370 #define COPY_TEXT_PROPERTY(prop) \
371 new_text_property ((prop)->mt, (prop)->start, (prop)->end, \
372 (prop)->key, (prop)->val, (prop)->control.flag)
375 /** Split text property PROP at position INTERVAL->start, and make all
376 the following intervals contain the copy of PROP instead of PROP.
377 It assumes that PROP starts before INTERVAL. */
380 split_property (MTextProperty *prop, MInterval *interval)
386 prop->end = interval->start;
387 copy = COPY_TEXT_PROPERTY (prop);
388 copy->start = interval->start;
390 /* Check all stacks of the following intervals, and if it contains
391 PROP, change it to the copy of it. */
392 for (; interval && interval->start < end; interval = interval->next)
393 for (i = 0; i < interval->nprops; i++)
394 if (interval->stack[i] == prop)
396 interval->stack[i] = copy;
397 M17N_OBJECT_REF (copy);
398 copy->attach_count++;
399 prop->attach_count--;
400 M17N_OBJECT_UNREF (prop);
402 M17N_OBJECT_UNREF (copy);
405 /** Divide INTERVAL of PLIST at POS if POS is in between the range of
409 divide_interval (MTextPlist *plist, MInterval *interval, int pos)
414 if (pos == interval->start || pos == interval->end)
416 new = copy_interval (interval, 0);
417 interval->end = new->start = pos;
418 new->prev = interval;
419 new->next = interval->next;
420 interval->next = new;
422 new->next->prev = new;
423 if (plist->tail == interval)
425 for (i = 0; i < new->nprops; i++)
427 new->stack[i]->attach_count++;
428 M17N_OBJECT_REF (new->stack[i]);
433 /** Check if INTERVAL of PLIST can be merged with INTERVAL->next. If
434 mergeable, extend INTERVAL to the end of INTEVAL->next, free
435 INTERVAL->next, and return INTERVAL. Otherwise, return
439 maybe_merge_interval (MTextPlist *plist, MInterval *interval)
441 int nprops = interval->nprops;
442 MInterval *next = interval->next;
445 if (! next || nprops != next->nprops)
448 for (i = 0; i < nprops; i++)
450 MTextProperty *prop = interval->stack[i];
451 MTextProperty *old = next->stack[i];
454 && (prop->val != old->val
455 || prop->end != old->start
456 || prop->control.flag & MTEXTPROP_NO_MERGE
457 || old->control.flag & MTEXTPROP_NO_MERGE))
458 return interval->next;
462 for (i = 0; i < nprops; i++)
464 MTextProperty *prop = interval->stack[i];
465 MTextProperty *old = next->stack[i];
471 for (tail = next->next; tail && tail->start < old->end;
473 for (j = 0; j < tail->nprops; j++)
474 if (tail->stack[j] == old)
477 xassert (old->attach_count);
478 tail->stack[j] = prop;
479 prop->attach_count++;
480 M17N_OBJECT_REF (prop);
482 xassert (old->attach_count == 1);
484 prop->end = old->end;
487 M17N_OBJECT_UNREF (old);
490 interval->end = next->end;
491 interval->next = next->next;
493 next->next->prev = interval;
494 if (plist->tail == next)
495 plist->tail = interval;
496 plist->cache = interval;
498 free_interval (next);
503 /** Adjust start and end positions of intervals between HEAD and TAIL
504 (both inclusive) by diff. Adjust also start and end positions
505 of text properties belonging to those intervals. */
508 adjust_intervals (MInterval *head, MInterval *tail, int diff)
515 /* Adjust end poistions of properties starting before HEAD. */
516 for (i = 0; i < head->nprops; i++)
518 prop = head->stack[i];
519 if (prop->start < head->start)
523 /* Adjust start and end positions of properties starting at
524 HEAD, and adjust HEAD itself. */
527 for (i = 0; i < head->nprops; i++)
529 prop = head->stack[i];
530 if (prop->start == head->start)
531 prop->start += diff, prop->end += diff;
542 /* Adjust start poistions of properties ending after TAIL. */
543 for (i = 0; i < tail->nprops; i++)
545 prop = tail->stack[i];
546 if (prop->end > tail->end)
550 /* Adjust start and end positions of properties ending at
551 TAIL, and adjust TAIL itself. */
554 for (i = 0; i < tail->nprops; i++)
556 prop = tail->stack[i];
557 if (prop->end == tail->end)
558 prop->start += diff, prop->end += diff;
569 /* Return an interval of PLIST that covers the position POS. */
572 find_interval (MTextPlist *plist, int pos)
577 if (pos < plist->head->end)
579 if (pos >= plist->tail->start)
580 return (pos < plist->tail->end ? plist->tail : NULL);
582 interval = plist->cache;
584 if (pos < interval->start)
585 highest = interval->prev, interval = plist->head->next;
586 else if (pos < interval->end)
589 highest = plist->tail->prev, interval = interval->next;
591 if (pos - interval->start < highest->end - pos)
593 while (interval->end <= pos)
594 /* Here, we are sure that POS is not included in PLIST->tail,
595 thus, INTERVAL->next always points a valid next
597 interval = interval->next;
601 while (highest->start > pos)
602 highest = highest->prev;
605 plist->cache = interval;
609 /* Push text property PROP on the stack of INTERVAL. */
611 #define PUSH_PROP(interval, prop) \
613 int n = (interval)->nprops; \
615 PREPARE_INTERVAL_STACK ((interval), n + 1); \
616 (interval)->stack[n] = (prop); \
617 (interval)->nprops += 1; \
618 (prop)->attach_count++; \
619 M17N_OBJECT_REF (prop); \
620 if ((prop)->start > (interval)->start) \
621 (prop)->start = (interval)->start; \
622 if ((prop)->end < (interval)->end) \
623 (prop)->end = (interval)->end; \
627 /* Pop the topmost text property of INTERVAL from the stack. If it
628 ends after INTERVAL->end, split it. */
630 #define POP_PROP(interval) \
632 MTextProperty *prop; \
634 (interval)->nprops--; \
635 prop = (interval)->stack[(interval)->nprops]; \
636 xassert (prop->control.ref_count > 0); \
637 xassert (prop->attach_count > 0); \
638 if (prop->start < (interval)->start) \
640 if (prop->end > (interval)->end) \
641 split_property (prop, (interval)->next); \
642 prop->end = (interval)->start; \
644 else if (prop->end > (interval)->end) \
645 prop->start = (interval)->end; \
646 prop->attach_count--; \
647 if (! prop->attach_count) \
649 M17N_OBJECT_UNREF (prop); \
653 #define REMOVE_PROP(interval, prop) \
657 for (i = (interval)->nprops - 1; i >= 0; i--) \
658 if ((interval)->stack[i] == (prop)) \
662 (interval)->nprops--; \
663 for (; i < (interval)->nprops; i++) \
664 (interval)->stack[i] = (interval)->stack[i + 1]; \
665 (prop)->attach_count--; \
666 if (! (prop)->attach_count) \
668 M17N_OBJECT_UNREF (prop); \
672 #ifdef TEXT_PROP_DEBUG
674 check_plist (MTextPlist *plist, int start)
676 MInterval *interval = plist->head;
677 MInterval *cache = plist->cache;
680 if (interval->start != start
681 || interval->start >= interval->end)
682 return mdebug_hook ();
687 if (interval == interval->next)
688 return mdebug_hook ();
690 if (interval == cache)
693 if (interval->start >= interval->end)
694 return mdebug_hook ();
696 ? (interval->end != interval->next->start
697 || interval != interval->next->prev)
698 : interval != plist->tail))
699 return mdebug_hook ();
700 for (i = 0; i < interval->nprops; i++)
702 if (interval->stack[i]->start > interval->start
703 || interval->stack[i]->end < interval->end)
704 return mdebug_hook ();
706 if (! interval->stack[i]->attach_count)
707 return mdebug_hook ();
708 if (! interval->stack[i]->mt)
709 return mdebug_hook ();
710 if (interval->stack[i]->start == interval->start)
712 MTextProperty *prop = interval->stack[i];
713 int count = prop->attach_count - 1;
714 MInterval *interval2;
716 for (interval2 = interval->next;
717 interval2 && interval2->start < prop->end;
718 count--, interval2 = interval2->next)
720 return mdebug_hook ();
723 if (interval->stack[i]->end > interval->end)
725 MTextProperty *prop = interval->stack[i];
726 MInterval *interval2;
729 for (interval2 = interval->next;
730 interval2 && interval2->start < prop->end;
731 interval2 = interval2->next)
733 for (j = 0; j < interval2->nprops; j++)
734 if (interval2->stack[j] == prop)
736 if (j == interval2->nprops)
737 return mdebug_hook ();
740 if (interval->stack[i]->start < interval->start)
742 MTextProperty *prop = interval->stack[i];
743 MInterval *interval2;
746 for (interval2 = interval->prev;
747 interval2 && interval2->end > prop->start;
748 interval2 = interval2->prev)
750 for (j = 0; j < interval2->nprops; j++)
751 if (interval2->stack[j] == prop)
753 if (j == interval2->nprops)
754 return mdebug_hook ();
758 interval = interval->next;
761 return mdebug_hook ();
762 if (plist->head->prev || plist->tail->next)
763 return mdebug_hook ();
769 /** Return a copy of plist that contains intervals between FROM and TO
770 of PLIST. The copy goes to the position POS of M-text MT. */
773 copy_single_property (MTextPlist *plist, int from, int to, MText *mt, int pos)
776 MInterval *interval1, *interval2;
778 int diff = pos - from;
780 int mask_bits = MTEXTPROP_VOLATILE_STRONG | MTEXTPROP_VOLATILE_WEAK;
782 MSTRUCT_CALLOC (new, MERROR_TEXTPROP);
783 new->key = plist->key;
786 interval1 = find_interval (plist, from);
787 new->head = copy_interval (interval1, mask_bits);
788 for (interval1 = interval1->next, interval2 = new->head;
789 interval1 && interval1->start < to;
790 interval1 = interval1->next, interval2 = interval2->next)
792 interval2->next = copy_interval (interval1, mask_bits);
793 interval2->next->prev = interval2;
795 new->tail = interval2;
796 new->head->start = from;
798 for (interval1 = new->head; interval1; interval1 = interval1->next)
799 for (i = 0; i < interval1->nprops; i++)
800 if (interval1->start == interval1->stack[i]->start
801 || interval1 == new->head)
803 prop = interval1->stack[i];
804 interval1->stack[i] = COPY_TEXT_PROPERTY (prop);
805 interval1->stack[i]->mt = mt;
806 interval1->stack[i]->attach_count++;
807 if (interval1->stack[i]->start < from)
808 interval1->stack[i]->start = from;
809 if (interval1->stack[i]->end > to)
810 interval1->stack[i]->end = to;
811 for (interval2 = interval1->next; interval2;
812 interval2 = interval2->next)
813 for (j = 0; j < interval2->nprops; j++)
814 if (interval2->stack[j] == prop)
816 interval2->stack[j] = interval1->stack[i];
817 interval1->stack[i]->attach_count++;
818 M17N_OBJECT_REF (interval1->stack[i]);
821 adjust_intervals (new->head, new->tail, diff);
822 new->cache = new->head;
823 for (interval1 = new->head; interval1 && interval1->next;
824 interval1 = maybe_merge_interval (new, interval1));
825 xassert (check_plist (new, pos) == 0);
826 if (new->head == new->tail
827 && new->head->nprops == 0)
829 free_interval (new->head);
837 /** Return a newly allocated plist whose key is KEY on M-text MT. */
840 new_plist (MText *mt, MSymbol key)
844 MSTRUCT_MALLOC (plist, MERROR_TEXTPROP);
846 plist->head = new_interval (0, mtext_nchars (mt));
847 plist->tail = plist->head;
848 plist->cache = plist->head;
849 plist->next = mt->plist;
854 /* Free PLIST and return PLIST->next. */
857 free_textplist (MTextPlist *plist)
859 MTextPlist *next = plist->next;
860 MInterval *interval = plist->head;
864 while (interval->nprops > 0)
866 interval = free_interval (interval);
872 /** Return a plist that contains the property KEY of M-text MT. If
873 such a plist does not exist and CREATE is nonzero, create a new
874 plist and return it. */
877 get_plist_create (MText *mt, MSymbol key, int create)
882 while (plist && plist->key != key)
885 /* If MT does not have PROP, make one. */
886 if (! plist && create)
887 plist = new_plist (mt, key);
891 /* Detach PROP. INTERVAL (if not NULL) contains PROP. */
894 detach_property (MTextPlist *plist, MTextProperty *prop, MInterval *interval)
902 M17N_OBJECT_REF (prop);
904 while (interval->start > prop->start)
905 interval = interval->prev;
907 interval = find_interval (plist, prop->start);
911 REMOVE_PROP (interval, prop);
912 if (interval->end == to)
914 interval = interval->next;
916 xassert (prop->attach_count == 0 && prop->mt == NULL);
917 M17N_OBJECT_UNREF (prop);
919 while (head && head->end <= to)
920 head = maybe_merge_interval (plist, head);
921 xassert (check_plist (plist, 0) == 0);
924 /* Delete text properties of PLIST between FROM and TO. MASK_BITS
925 specifies what kind of properties to delete. If DELETING is
926 nonzero, delete such properties too that are completely included in
929 If the resulting PLIST still has any text properties, return 1,
933 delete_properties (MTextPlist *plist, int from, int to,
934 int mask_bits, int deleting)
938 int modified_from = from;
939 int modified_to = to;
943 for (interval = find_interval (plist, from);
944 interval && interval->start < to;
945 interval = interval->next)
946 for (i = 0; i < interval->nprops; i++)
948 MTextProperty *prop = interval->stack[i];
950 if (prop->control.flag & mask_bits)
952 if (prop->start < modified_from)
953 modified_from = prop->start;
954 if (prop->end > modified_to)
955 modified_to = prop->end;
956 detach_property (plist, prop, interval);
960 else if (deleting && prop->start >= from && prop->end <= to)
962 detach_property (plist, prop, interval);
970 interval = find_interval (plist, modified_from);
971 while (interval && interval->start < modified_to)
972 interval = maybe_merge_interval (plist, interval);
975 return (plist->head != plist->tail || plist->head->nprops > 0);
979 pop_interval_properties (MInterval *interval)
981 while (interval->nprops > 0)
987 pop_all_properties (MTextPlist *plist, int from, int to)
991 /* Be sure to have interval boundary at TO. */
992 interval = find_interval (plist, to);
993 if (interval && interval->start < to)
994 divide_interval (plist, interval, to);
996 /* Be sure to have interval boundary at FROM. */
997 interval = find_interval (plist, from);
998 if (interval->start < from)
1000 divide_interval (plist, interval, from);
1001 interval = interval->next;
1004 pop_interval_properties (interval);
1005 while (interval->end < to)
1007 MInterval *next = interval->next;
1009 pop_interval_properties (next);
1010 interval->end = next->end;
1011 interval->next = next->next;
1013 interval->next->prev = interval;
1014 if (next == plist->tail)
1015 plist->tail = interval;
1016 if (plist->cache == next)
1017 plist->cache = interval;
1018 free_interval (next);
1024 /* Delete volatile text properties between FROM and TO. If KEY is
1025 Mnil, we are going to delete text, thus both strongly and weakly
1026 volatile properties must be deleted. Otherwise we are going to
1027 modify a text property KEY, thus only strongly volatile properties
1028 whose key is not KEY must be deleted. */
1031 prepare_to_modify (MText *mt, int from, int to, MSymbol key)
1033 MTextPlist *plist = mt->plist, *prev = NULL;
1034 int mask_bits = MTEXTPROP_VOLATILE_STRONG;
1035 int deleting = (key == Mnil) && (from < to);
1038 mask_bits |= MTEXTPROP_VOLATILE_WEAK;
1041 if (plist->key != key
1042 && ! delete_properties (plist, from, to, mask_bits, deleting))
1045 plist = prev->next = free_textplist (plist);
1047 plist = mt->plist = free_textplist (plist);
1050 prev = plist, plist = plist->next;
1055 extract_text_properties (MText *mt, int from, int to, MSymbol key,
1059 MTextPlist *list = get_plist_create (mt, key, 0);
1060 MInterval *interval;
1064 interval = find_interval (list, from);
1065 if (interval->nprops == 0
1066 && interval->start <= from && interval->end >= to)
1069 while (interval && interval->start < to)
1071 if (interval->nprops == 0)
1072 top = mplist_find_by_key (top, Mnil);
1075 MPlist *current = top, *place;
1078 for (i = 0; i < interval->nprops; i++)
1080 MTextProperty *prop = interval->stack[i];
1082 place = mplist_find_by_value (current, prop);
1084 current = MPLIST_NEXT (place);
1087 place = mplist_find_by_value (top, prop);
1091 if (MPLIST_NEXT (place) == MPLIST_NEXT (current))
1094 mplist_push (current, Mt, prop);
1095 current = MPLIST_NEXT (current);
1099 interval = interval->next;
1104 #define XML_TEMPLATE "<?xml version=\"1.0\" ?>\n\
1105 <!DOCTYPE mtext [\n\
1106 <!ELEMENT mtext (property*,body+)>\n\
1107 <!ELEMENT property EMPTY>\n\
1108 <!ELEMENT body (#PCDATA)>\n\
1109 <!ATTLIST property key CDATA #REQUIRED>\n\
1110 <!ATTLIST property value CDATA #REQUIRED>\n\
1111 <!ATTLIST property from CDATA #REQUIRED>\n\
1112 <!ATTLIST property to CDATA #REQUIRED>\n\
1113 <!ATTLIST property control CDATA #REQUIRED>\n\
1119 /* for debugging... */
1123 dump_interval (MInterval *interval, int indent)
1125 char *prefix = (char *) alloca (indent + 1);
1128 memset (prefix, 32, indent);
1131 fprintf (stderr, "(interval %d-%d (%d)", interval->start, interval->end,
1133 for (i = 0; i < interval->nprops; i++)
1134 fprintf (stderr, "\n%s (%d %d/%d %d-%d 0x%x)",
1136 interval->stack[i]->control.ref_count,
1137 interval->stack[i]->attach_count,
1138 interval->stack[i]->start, interval->stack[i]->end,
1139 (unsigned) interval->stack[i]->val);
1140 fprintf (stderr, ")");
1144 dump_textplist (MTextPlist *plist, int indent)
1146 char *prefix = (char *) alloca (indent + 1);
1148 memset (prefix, 32, indent);
1151 fprintf (stderr, "(properties");
1153 fprintf (stderr, ")\n");
1156 fprintf (stderr, "\n");
1159 MInterval *interval = plist->head;
1161 fprintf (stderr, "%s (%s", prefix, msymbol_name (plist->key));
1164 fprintf (stderr, " (%d %d", interval->start, interval->end);
1165 if (interval->nprops > 0)
1169 for (i = 0; i < interval->nprops; i++)
1170 fprintf (stderr, " 0x%x", (int) interval->stack[i]->val);
1172 fprintf (stderr, ")");
1173 interval = interval->next;
1175 fprintf (stderr, ")\n");
1176 xassert (check_plist (plist, 0) == 0);
1177 plist = plist->next;
1188 text_property_table.count = 0;
1189 Mtext_prop_serializer = msymbol ("text-prop-serializer");
1190 Mtext_prop_deserializer = msymbol ("text-prop-deserializer");
1197 MIntervalPool *pool = interval_pool_root.next;
1201 MIntervalPool *next = pool->next;
1205 interval_pool_root.next = NULL;
1206 mdebug__report_object ("Text property", &text_property_table);
1210 /** Free all plists. */
1213 mtext__free_plist (MText *mt){
1215 MTextPlist *plist = mt->plist;
1218 plist = free_textplist (plist);
1223 /** Extract intervals between FROM and TO of all properties (except
1224 for volatile ones) in PLIST, and make a new plist from them for
1228 mtext__copy_plist (MTextPlist *plist, int from, int to, MText *mt, int pos)
1230 MTextPlist *copy, *this;
1234 for (copy = NULL; plist && ! copy; plist = plist->next)
1235 copy = copy_single_property (plist, from, to, mt, pos);
1238 for (; plist; plist = plist->next)
1239 if ((this = copy_single_property (plist, from, to, mt, pos)))
1249 mtext__adjust_plist_for_delete (MText *mt, int pos, int len)
1254 if (len == 0 || pos == mt->nchars)
1256 if (len == mt->nchars)
1258 mtext__free_plist (mt);
1263 prepare_to_modify (mt, pos, to, Mnil);
1264 for (plist = mt->plist; plist; plist = plist->next)
1266 MInterval *interval = pop_all_properties (plist, pos, to);
1267 MInterval *prev = interval->prev, *next = interval->next;
1275 adjust_intervals (next, plist->tail, -len);
1281 next = maybe_merge_interval (plist, prev);
1282 plist->cache = next ? next : prev;
1283 free_interval (interval);
1284 xassert (check_plist (plist, 0) == 0);
1289 mtext__adjust_plist_for_insert (MText *mt, int pos, int nchars,
1292 MTextPlist *pl, *pl_last, *pl2, *p;
1294 MInterval *interval;
1296 if (mt->nchars == 0)
1298 mtext__free_plist (mt);
1302 if (pos > 0 && pos < mtext_nchars (mt))
1303 prepare_to_modify (mt, pos, pos, Mnil);
1305 for (pl_last = NULL, pl = mt->plist; pl; pl_last = pl, pl = pl->next)
1307 MInterval *interval, *prev, *next, *head, *tail;
1310 prev = NULL, next = pl->head;
1311 else if (pos == mtext_nchars (mt))
1312 prev = pl->tail, next = NULL;
1315 next = find_interval (pl, pos);
1316 if (next->start < pos)
1318 divide_interval (pl, next, pos);
1321 for (i = 0; i < next->nprops; i++)
1322 if (next->stack[i]->start < pos)
1323 split_property (next->stack[i], next);
1327 xassert (check_plist (pl, 0) == 0);
1328 for (p = NULL, pl2 = plist; pl2 && pl->key != pl2->key;
1329 p = pl2, pl2 = p->next);
1332 xassert (check_plist (pl2, pl2->head->start) == 0);
1334 p->next = pl2->next;
1336 plist = plist->next;
1344 head = tail = new_interval (pos, pos + nchars);
1357 adjust_intervals (next, pl->tail, nchars);
1359 xassert (check_plist (pl, 0) == 0);
1360 if (prev && prev->nprops > 0)
1362 for (interval = prev;
1363 interval->next != next && interval->next->nprops == 0;
1364 interval = interval->next)
1365 for (i = 0; i < interval->nprops; i++)
1367 MTextProperty *prop = interval->stack[i];
1369 if (prop->control.flag & MTEXTPROP_REAR_STICKY)
1370 PUSH_PROP (interval->next, prop);
1373 xassert (check_plist (pl, 0) == 0);
1374 if (next && next->nprops > 0)
1376 for (interval = next;
1377 interval->prev != prev && interval->prev->nprops == 0;
1378 interval = interval->prev)
1379 for (i = 0; i < interval->nprops; i++)
1381 MTextProperty *prop = interval->stack[i];
1383 if (prop->control.flag & MTEXTPROP_FRONT_STICKY)
1384 PUSH_PROP (interval->prev, prop);
1388 interval = prev ? prev : pl->head;
1389 pl->cache = interval;
1390 while (interval && interval->start <= pos + nchars)
1391 interval = maybe_merge_interval (pl, interval);
1392 xassert (check_plist (pl, 0) == 0);
1396 pl_last->next = plist;
1400 for (; plist; plist = plist->next)
1402 plist->cache = plist->head;
1405 if (plist->head->nprops)
1407 interval = new_interval (0, pos);
1408 interval->next = plist->head;
1409 plist->head->prev = interval;
1410 plist->head = interval;
1413 plist->head->start = 0;
1415 if (pos < mtext_nchars (mt))
1417 if (plist->tail->nprops)
1419 interval = new_interval (pos + nchars,
1420 mtext_nchars (mt) + nchars);
1421 interval->prev = plist->tail;
1422 plist->tail->next = interval;
1423 plist->tail = interval;
1426 plist->tail->end = mtext_nchars (mt) + nchars;
1428 xassert (check_plist (plist, 0) == 0);
1433 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
1438 /*** @addtogroup m17nTextProperty */
1443 @brief Get the value of the topmost text property.
1445 The mtext_get_prop () function searches the character at $POS in
1446 M-text $MT for the text property whose key is $KEY.
1449 If a text property is found, mtext_get_prop () returns the value
1450 of the property. If the property has multiple values, it returns
1451 the topmost one. If no such property is found, it returns @c NULL
1452 without changing the external variable #merror_code.
1454 If an error is detected, mtext_get_prop () returns @c NULL and
1455 assigns an error code to the external variable #merror_code.
1457 @note If @c NULL is returned without an error, there are two
1460 @li the character at $POS does not have a property whose key is $KEY, or
1462 @li the character does have such a property and its value is @c NULL.
1464 If you need to distinguish these two cases, use the
1465 mtext_get_prop_values () function instead. */
1468 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î°ìÈÖ¾å¤ÎÃͤòÆÀ¤ë.
1470 ´Ø¿ô mtext_get_prop () ¤Ï¡¢M-text $MT Æâ¤Î°ÌÃÖ $POS ¤Ë¤¢¤ëʸ»ú¤Î¥Æ
1471 ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¤â¤Î¤òõ¤¹¡£
1474 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬¤ß¤Ä¤«¤ì¤Ð¡¢mtext_get_prop () ¤Ï¤½¤Î¥×¥í¥Ñ¥Æ¥£
1475 ¤ÎÃͤòÊÖ¤¹¡£Ãͤ¬Ê£¿ô¸ºß¤¹¤ë¤È¤¤Ï¡¢°ìÈÖ¾å¤ÎÃͤòÊÖ¤¹¡£¸«¤Ä¤«¤é¤Ê¤±
1476 ¤ì¤Ð³°ÉôÊÑ¿ô #merror_code ¤òÊѹ¹¤¹¤ë¤³¤È¤Ê¤¯ @c NULL ¤òÊÖ¤¹¡£
1478 ¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç mtext_get_prop () ¤Ï @c NULL ¤òÊÖ¤·¡¢³°ÉôÊÑ
1479 ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1481 @note ¥¨¥é¡¼¤Ê¤·¤Ç @c NULL ¤¬ÊÖ¤µ¤ì¤¿¾ì¹ç¤Ë¤ÏÆó¤Ä¤Î²ÄǽÀ¤¬¤¢¤ë¡£
1483 @li $POS ¤Î°ÌÃÖ¤Îʸ»ú¤Ï $KEY ¤ò¥¡¼¤È¤¹¤ë¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿¤Ê¤¤¡£
1485 @li ¤½¤Îʸ»ú¤Ï¤½¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Á¡¢¤½¤ÎÃͤ¬ @c NULL ¤Ç¤¢¤ë¡£
1487 ¤³¤ÎÆó¤Ä¤ò¶èÊ̤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢´Ø¿ô mtext_get_prop_values ()
1488 ¤òÂå¤ï¤ê¤Ë»ÈÍѤ¹¤ë¤³¤È¡£
1490 @latexonly \IPAlabel{mtext_get_prop} @endlatexonly */
1494 @c MERROR_RANGE, @c MERROR_SYMBOL
1497 mtext_get_prop_values (), mtext_put_prop (), mtext_put_prop_values (),
1498 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1501 mtext_get_prop (MText *mt, int pos, MSymbol key)
1504 MInterval *interval;
1507 M_CHECK_POS (mt, pos, NULL);
1509 plist = get_plist_create (mt, key, 0);
1513 interval = find_interval (plist, pos);
1514 val = (interval->nprops
1515 ? interval->stack[interval->nprops - 1]->val : NULL);
1522 @brief Get multiple values of a text property.
1524 The mtext_get_prop_values () function searches the character at
1525 $POS in M-text $MT for the property whose key is $KEY. If such
1526 a property is found, its values are stored in the memory area
1527 pointed to by $VALUES. $NUM limits the maximum number of stored
1531 If the operation was successful, mtext_get_prop_values () returns
1532 the number of actually stored values. If the character at $POS
1533 does not have a property whose key is $KEY, the return value is
1534 0. If an error is detected, mtext_get_prop_values () returns -1 and
1535 assigns an error code to the external variable #merror_code. */
1538 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤòÊ£¿ô¸ÄÆÀ¤ë.
1540 ´Ø¿ô mtext_get_prop_values () ¤Ï¡¢M-text $MT Æâ¤Ç $POS ¤È¤¤¤¦°ÌÃÖ
1541 ¤Ë¤¢¤ëʸ»ú¤Î¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¤â¤Î¤òõ¤¹¡£¤â¤·¤½
1542 ¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤¬¸«¤Ä¤«¤ì¤Ð¡¢¤½¤ì¤¬»ý¤ÄÃÍ (Ê£¿ô²Ä) ¤ò $VALUES
1543 ¤Î»Ø¤¹¥á¥â¥êÎΰè¤Ë³ÊǼ¤¹¤ë¡£$NUM ¤Ï³ÊǼ¤¹¤ëÃͤοô¤Î¾å¸Â¤Ç¤¢¤ë¡£
1546 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_get_prop_values () ¤Ï¼ÂºÝ¤Ë¥á¥â¥ê¤Ë³ÊǼ¤µ
1547 ¤ì¤¿Ãͤοô¤òÊÖ¤¹¡£$POS ¤Î°ÌÃÖ¤Îʸ»ú¤¬ $KEY ¤ò¥¡¼¤È¤¹¤ë¥×¥í¥Ñ¥Æ¥£
1548 ¤ò»ý¤¿¤Ê¤±¤ì¤Ð 0 ¤òÊÖ¤¹¡£¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç¤Ï -1 ¤òÊÖ¤·¡¢³°Éô
1549 ÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1551 @latexonly \IPAlabel{mtext_get_prop_values} @endlatexonly */
1555 @c MERROR_RANGE, @c MERROR_SYMBOL
1558 mtext_get_prop (), mtext_put_prop (), mtext_put_prop_values (),
1559 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1562 mtext_get_prop_values (MText *mt, int pos, MSymbol key,
1563 void **values, int num)
1566 MInterval *interval;
1571 M_CHECK_POS (mt, pos, -1);
1573 plist = get_plist_create (mt, key, 0);
1577 interval = find_interval (plist, pos);
1578 /* It is assured that INTERVAL is not NULL. */
1579 nprops = interval->nprops;
1580 if (nprops == 0 || num <= 0)
1582 if (nprops == 1 || num == 1)
1584 values[0] = interval->stack[nprops - 1]->val;
1589 num = nprops, offset = 0;
1591 offset = nprops - num;
1592 for (i = 0; i < num; i++)
1593 values[i] = interval->stack[offset + i]->val;
1600 @brief Get list of text property keys at a position of an M-text.
1602 The mtext_get_prop_keys () function creates an array whose
1603 elements are the keys of text properties found at position $POS in
1604 M-text $MT, and sets *$KEYS to the address of the created array.
1605 The user is responsible to free the memory allocated for
1609 If the operation was successful, mtext_get_prop_keys () returns
1610 the length of the key list. Otherwise it returns -1 and assigns
1611 an error code to the external variable #merror_code.
1616 @brief M-text ¤Î»ØÄꤷ¤¿°ÌÃ֤Υƥ¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤Î¥ê¥¹¥È¤òÆÀ¤ë.
1618 ´Ø¿ô mtext_get_prop_keys () ¤Ï¡¢M-text $MT Æâ¤Ç $POS ¤Î°ÌÃ֤ˤ¢¤ë
1619 ¤¹¤Ù¤Æ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤òÍ×ÁǤȤ¹¤ëÇÛÎó¤òºî¤ê¡¢¤½¤ÎÇÛÎó¤Î
1620 ¥¢¥É¥ì¥¹¤ò *$KEYS ¤ËÀßÄꤹ¤ë¡£¤³¤ÎÇÛÎó¤Î¤¿¤á¤Ë³ÎÊݤµ¤ì¤¿¥á¥â¥ê¤ò²ò
1621 Êü¤¹¤ë¤Î¤Ï¥æ¡¼¥¶¤ÎÀÕǤ¤Ç¤¢¤ë¡£
1624 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð mtext_get_prop_keys () ¤ÏÆÀ¤é¤ì¤¿¥ê¥¹¥È¤ÎŤµ¤òÊÖ
1625 ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤ò
1634 mtext_get_prop (), mtext_put_prop (), mtext_put_prop_values (),
1635 mtext_get_prop_values (), mtext_push_prop (), mtext_pop_prop () */
1638 mtext_get_prop_keys (MText *mt, int pos, MSymbol **keys)
1643 M_CHECK_POS (mt, pos, -1);
1644 for (i = 0, plist = mt->plist; plist; i++, plist = plist->next);
1650 MTABLE_MALLOC (*keys, i, MERROR_TEXTPROP);
1651 for (i = 0, plist = mt->plist; plist; plist = plist->next)
1653 MInterval *interval = find_interval (plist, pos);
1655 if (interval->nprops)
1656 (*keys)[i++] = plist->key;
1664 @brief Set a text property.
1666 The mtext_put_prop () function sets a text property to the
1667 characters between $FROM (inclusive) and $TO (exclusive) in M-text
1668 $MT. $KEY and $VAL specify the key and the value of the text
1669 property. With this function,
1673 M-text: |<------------|-------- MT ---------|------------>|
1674 PROP : <------------------ OLD_VAL -------------------->
1681 M-text: |<------------|-------- MT ---------|------------>|
1682 PROP : <-- OLD_VAL-><-------- VAL -------><-- OLD_VAL-->
1686 If the operation was successful, mtext_put_prop () returns 0.
1687 Otherwise it returns -1 and assigns an error code to the external
1688 variable #merror_code. */
1691 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ¤ë.
1693 ´Ø¿ô mtext_put_prop () ¤Ï¡¢M-text $MT ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é
1694 $TO ¡Ê´Þ¤Þ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¡¢¥¡¼¤¬ $KEY ¤ÇÃͤ¬ $VAL ¤Ç¤¢¤ë¤è
1695 ¤¦¤Ê¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ¤ë¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ
1700 M-text: |<------------|-------- MT ---------|------------>|
1701 PROP: <------------------ OLD_VAL -------------------->
1708 M-text: |<------------|-------- MT ---------|------------>|
1709 PROP: <-- OLD_VAL-><-------- VAL -------><-- OLD_VAL-->
1713 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð mtext_put_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1
1714 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1716 @latexonly \IPAlabel{mtext_put_prop} @endlatexonly */
1720 @c MERROR_RANGE, @c MERROR_SYMBOL
1723 mtext_put_prop_values (), mtext_get_prop (),
1724 mtext_get_prop_values (), mtext_push_prop (),
1725 mtext_pop_prop (), mtext_prop_range () */
1728 mtext_put_prop (MText *mt, int from, int to, MSymbol key, void *val)
1731 MTextProperty *prop;
1732 MInterval *interval;
1734 M_CHECK_RANGE (mt, from, to, -1, 0);
1736 prepare_to_modify (mt, from, to, key);
1737 plist = get_plist_create (mt, key, 1);
1738 interval = pop_all_properties (plist, from, to);
1739 prop = new_text_property (mt, from, to, key, val, 0);
1740 PUSH_PROP (interval, prop);
1741 M17N_OBJECT_UNREF (prop);
1743 maybe_merge_interval (plist, interval);
1745 maybe_merge_interval (plist, interval->prev);
1746 xassert (check_plist (plist, 0) == 0);
1753 @brief Set multiple text properties with the same key.
1755 The mtext_put_prop_values () function sets a text property to the
1756 characters between $FROM (inclusive) and $TO (exclusive) in M-text
1757 $MT. $KEY and $VALUES specify the key and the values of the text
1758 property. $NUM specifies the number of property values to be set.
1761 If the operation was successful, mtext_put_prop_values () returns
1762 0. Otherwise it returns -1 and assigns an error code to the
1763 external variable #merror_code. */
1766 @brief Ʊ¤¸¥¡¼¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÊ£¿ôÀßÄꤹ¤ë.
1768 ´Ø¿ô mtext_put_prop_values () ¤Ï¡¢M-Text $MT ¤Î$FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë
1769 ¤«¤é $TO ¡Ê´Þ¤Þ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ
1770 ¤ë¡£¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤Ï $KEY ¤Ë¤è¤Ã¤Æ¡¢ÃÍ(Ê£¿ô²Ä)¤Ï $VALUES
1771 ¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤ë¡£$NUM ¤ÏÀßÄꤵ¤ì¤ëÃͤθĿô¤Ç¤¢¤ë¡£
1774 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_put_prop_values () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
1775 ¤ì¤Ð -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1777 @latexonly \IPAlabel{mtext_put_prop_values} @endlatexonly */
1781 @c MERROR_RANGE, @c MERROR_SYMBOL
1784 mtext_put_prop (), mtext_get_prop (), mtext_get_prop_values (),
1785 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1788 mtext_put_prop_values (MText *mt, int from, int to,
1789 MSymbol key, void **values, int num)
1792 MInterval *interval;
1795 M_CHECK_RANGE (mt, from, to, -1, 0);
1797 prepare_to_modify (mt, from, to, key);
1798 plist = get_plist_create (mt, key, 1);
1799 interval = pop_all_properties (plist, from, to);
1802 PREPARE_INTERVAL_STACK (interval, num);
1803 for (i = 0; i < num; i++)
1806 = new_text_property (mt, from, to, key, values[i], 0);
1807 PUSH_PROP (interval, prop);
1808 M17N_OBJECT_UNREF (prop);
1812 maybe_merge_interval (plist, interval);
1814 maybe_merge_interval (plist, interval->prev);
1815 xassert (check_plist (plist, 0) == 0);
1822 @brief Push a text property.
1824 The mtext_push_prop () function pushes a text property whose key
1825 is $KEY and value is $VAL to the characters between $FROM
1826 (inclusive) and $TO (exclusive) in $MT. With this function,
1830 M-text: |<------------|-------- MT ---------|------------>|
1831 PROP : <------------------ OLD_VAL -------------------->
1838 M-text: |<------------|-------- MT ---------|------------>|
1839 PROP : <------------------- OLD_VAL ------------------->
1840 PROP : <-------- VAL ------->
1844 If the operation was successful, mtext_push_prop () returns 0.
1845 Otherwise it returns -1 and assigns an error code to the external
1846 variable #merror_code. */
1849 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥×¥Ã¥·¥å¤¹¤ë.
1851 ´Ø¿ô mtext_push_prop () ¤Ï¡¢¥¡¼¤¬ $KEY ¤ÇÃͤ¬ $VAL ¤Ç¤¢¤ë¥Æ¥¥¹¥È
1852 ¥×¥í¥Ñ¥Æ¥£¤ò¡¢M-text $MT Ãæ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é $TO ¡Ê´Þ¤Þ¤ì¤Ê
1853 ¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¥×¥Ã¥·¥å¤¹¤ë¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ
1857 M-text: |<------------|-------- MT ---------|------------>|
1858 PROP : <------------------ OLD_VAL -------------------->
1863 M-text: |<------------|-------- MT ---------|------------>|
1864 PROP : <------------------- OLD_VAL ------------------->
1865 PROP : <-------- VAL ------->
1869 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_push_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð
1870 -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1872 @latexonly \IPAlabel{mtext_push_prop} @endlatexonly */
1876 @c MERROR_RANGE, @c MERROR_SYMBOL
1879 mtext_put_prop (), mtext_put_prop_values (),
1880 mtext_get_prop (), mtext_get_prop_values (),
1881 mtext_pop_prop (), mtext_prop_range () */
1884 mtext_push_prop (MText *mt, int from, int to,
1885 MSymbol key, void *val)
1888 MInterval *head, *tail, *interval;
1889 MTextProperty *prop;
1890 int check_head, check_tail;
1892 M_CHECK_RANGE (mt, from, to, -1, 0);
1894 prepare_to_modify (mt, from, to, key);
1895 plist = get_plist_create (mt, key, 1);
1897 /* Find an interval that covers the position FROM. */
1898 head = find_interval (plist, from);
1900 /* If the found interval starts before FROM, divide it at FROM. */
1901 if (head->start < from)
1903 divide_interval (plist, head, from);
1910 /* Find an interval that ends at TO. If TO is not at the end of an
1911 interval, make one that ends at TO. */
1912 if (head->end == to)
1917 else if (head->end > to)
1919 divide_interval (plist, head, to);
1925 tail = find_interval (plist, to);
1931 else if (tail->start == to)
1938 divide_interval (plist, tail, to);
1943 prop = new_text_property (mt, from, to, key, val, 0);
1945 /* Push PROP to the current values of intervals between HEAD and TAIL
1946 (both inclusive). */
1947 for (interval = head; ; interval = interval->next)
1949 PUSH_PROP (interval, prop);
1950 if (interval == tail)
1954 M17N_OBJECT_UNREF (prop);
1956 /* If there is a possibility that TAIL now has the same value as the
1957 next one, check it and concatenate them if necessary. */
1958 if (tail->next && check_tail)
1959 maybe_merge_interval (plist, tail);
1961 /* If there is a possibility that HEAD now has the same value as the
1962 previous one, check it and concatenate them if necessary. */
1963 if (head->prev && check_head)
1964 maybe_merge_interval (plist, head->prev);
1966 xassert (check_plist (plist, 0) == 0);
1973 @brief Pop a text property.
1975 The mtext_pop_prop () function removes the topmost text property
1976 whose key is $KEY from the characters between $FROM (inclusive)
1977 and and $TO (exclusive) in $MT.
1979 This function does nothing if characters in the region have no
1980 such text property. With this function,
1984 M-text: |<------------|-------- MT ---------|------------>|
1985 PROP : <------------------ OLD_VAL -------------------->
1992 M-text: |<------------|-------- MT ---------|------------>|
1993 PROP : <--OLD_VAL-->| |<--OLD_VAL-->|
1997 If the operation was successful, mtext_pop_prop () return 0.
1998 Otherwise it returns -1 and assigns an error code to the external
1999 variable #merror_code. */
2002 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ý¥Ã¥×¤¹¤ë.
2004 ´Ø¿ô mtext_pop_prop () ¤Ï¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î
2005 ¤¦¤Á°ìÈÖ¾å¤Î¤â¤Î¤ò¡¢M-text $MT ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é $TO¡Ê´Þ¤Þ
2006 ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤«¤é¼è¤ê½ü¤¯¡£
2008 »ØÄêÈϰϤÎʸ»ú¤¬¤½¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿¤Ê¤¤¤Ê¤é¤Ð¡¢¤³¤Î´Ø¿ô¤Ï²¿
2009 ¤â¤·¤Ê¤¤¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ¡¢
2013 M-text: |<------------|-------- MT ---------|------------>|
2014 PROP : <------------------ OLD_VAL -------------------->
2016 ¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤Ê¤ë¡£
2019 M-text: |<------------|-------- MT ---------|------------>|
2020 PROP : <--OLD_VAL-->| |<--OLD_VAL-->|
2024 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_pop_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1
2025 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
2027 @latexonly \IPAlabel{mtext_pop_prop} @endlatexonly */
2031 @c MERROR_RANGE, @c MERROR_SYMBOL
2034 mtext_put_prop (), mtext_put_prop_values (),
2035 mtext_get_prop (), mtext_get_prop_values (),
2036 mtext_push_prop (), mtext_prop_range () */
2039 mtext_pop_prop (MText *mt, int from, int to, MSymbol key)
2042 MInterval *head, *tail;
2046 MERROR (MERROR_TEXTPROP, -1);
2047 M_CHECK_RANGE (mt, from, to, -1, 0);
2048 plist = get_plist_create (mt, key, 0);
2052 /* Find an interval that covers the position FROM. */
2053 head = find_interval (plist, from);
2055 && head->nprops == 0)
2056 /* No property to pop. */
2059 prepare_to_modify (mt, from, to, key);
2061 /* If the found interval starts before FROM and has value(s), divide
2063 if (head->start < from)
2065 if (head->nprops > 0)
2067 divide_interval (plist, head, from);
2075 /* Pop the topmost text property from each interval following HEAD.
2076 Stop at an interval that ends after TO. */
2077 for (tail = head; tail && tail->end <= to; tail = tail->next)
2078 if (tail->nprops > 0)
2083 if (tail->start < to)
2085 if (tail->nprops > 0)
2087 divide_interval (plist, tail, to);
2096 to = plist->tail->start;
2098 /* If there is a possibility that HEAD now has the same text
2099 properties as the previous one, check it and concatenate them if
2101 if (head->prev && check_head)
2103 while (head && head->end <= to)
2104 head = maybe_merge_interval (plist, head);
2106 xassert (check_plist (plist, 0) == 0);
2113 @brief Find the range where the value of a text property is the same.
2115 The mtext_prop_range () function investigates the extent where all
2116 characters have the same value for a text property. It first
2117 finds the value of the property specified by $KEY of the character
2118 at $POS in M-text $MT. Then it checks if adjacent characters have
2119 the same value for the property $KEY. The beginning and the end
2120 of the found range are stored to the variable pointed to by $FROM
2121 and $TO. The character position stored in $FROM is inclusive but
2122 that in $TO is exclusive; this fashion is compatible with the
2123 range specification in the mtext_put_prop () function, etc.
2125 If $DEEPER is not 0, not only the topmost but also all the stacked
2126 properties whose key is $KEY are compared.
2128 If $FROM is @c NULL, the beginning of range is not searched for. If
2129 $TO is @c NULL, the end of range is not searched for.
2133 If the operation was successful, mtext_prop_range () returns the
2134 number of values the property $KEY has at pos. Otherwise it
2135 returns -1 and assigns an error code to the external variable @c
2139 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬Æ±¤¸Ãͤò¤È¤ëÈϰϤòÄ´¤Ù¤ë.
2141 ´Ø¿ô mtext_prop_range () ¤Ï¡¢»ØÄꤷ¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤ¬Æ±¤¸
2142 ¤Ç¤¢¤ëϢ³¤·¤¿Ê¸»ú¤ÎÈϰϤòÄ´¤Ù¤ë¡£¤Þ¤º M-text $MT ¤Î $POS ¤Î°ÌÃÖ¤Ë
2143 ¤¢¤ëʸ»ú¤Î¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼ $KEY ¤Ç»ØÄꤵ¤ì¤¿¤â¤Î¤ÎÃͤò¸«¤Ä¤±
2144 ¤ë¡£¤½¤·¤ÆÁ°¸å¤Îʸ»ú¤â $KEY ¤Î¥×¥í¥Ñ¥Æ¥£¤ÎÃͤ¬Æ±¤¸¤Ç¤¢¤ë¤«¤É¤¦¤«¤ò
2145 Ä´¤Ù¤ë¡£¸«¤Ä¤±¤¿ÈϰϤκǽé¤ÈºÇ¸å¤ò¡¢¤½¤ì¤¾¤ì $FROM ¤È $TO ¤Ë¥Ý¥¤¥ó
2146 ¥È¤µ¤ì¤ëÊÑ¿ô¤ËÊݸ¤¹¤ë¡£$FROM ¤ËÊݸ¤µ¤ì¤ëʸ»ú¤Î°ÌÃ֤ϸ«¤Ä¤±¤¿ÈÏ°Ï
2147 ¤Ë´Þ¤Þ¤ì¤ë¤¬¡¢$TO ¤Ï´Þ¤Þ¤ì¤Ê¤¤¡£¡Ê$TO ¤ÎÁ°¤ÇƱ¤¸Ãͤò¤È¤ëÈϰϤϽª¤ï
2148 ¤ë¡£¡Ë¤³¤ÎÈÏ°Ï»ØÄêË¡¤Ï¡¢´Ø¿ô mtext_put_prop () ¤Ê¤É¤È¶¦Ä̤Ǥ¢¤ë¡£
2150 $DEEPER ¤¬ 0 ¤Ç¤Ê¤±¤ì¤Ð¡¢$KEY ¤È¤¤¤¦¥¡¼¤ò»ý¤Ä¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á°ìÈÖ
2151 ¾å¤Î¤â¤Î¤À¤±¤Ç¤Ê¤¯¡¢¥¹¥¿¥Ã¥¯Ãæ¤Î¤¹¤Ù¤Æ¤Î¤â¤Î¤¬Èæ³Ó¤µ¤ì¤ë¡£
2153 $FROM ¤¬ @c NULL ¤Ê¤é¤Ð¡¢ÈϰϤλϤޤê¤Ïõº÷¤·¤Ê¤¤¡£$TO ¤¬ @c NULL
2154 ¤Ê¤é¤Ð¡¢ÈϰϤνª¤ê¤Ïõº÷¤·¤Ê¤¤¡£
2157 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_prop_range () ¤Ï $KEY ¥×¥í¥Ñ¥Æ¥£¤ÎÃͤοô¤ò
2158 ÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð-1 ¤òÊÖ¤·¡¢ ³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼
2161 @latexonly \IPAlabel{mtext_prop_range} @endlatexonly */
2165 @c MERROR_RANGE, @c MERROR_SYMBOL
2168 mtext_put_prop (), mtext_put_prop_values (),
2169 mtext_get_prop (), mtext_get_prop_values (),
2170 mtext_pop_prop (), mtext_push_prop () */
2173 mtext_prop_range (MText *mt, MSymbol key, int pos,
2174 int *from, int *to, int deeper)
2177 MInterval *interval, *temp;
2181 M_CHECK_POS (mt, pos, -1);
2183 plist = get_plist_create (mt, key, 0);
2186 if (from) *from = 0;
2187 if (to) *to = mtext_nchars (mt);
2191 interval = find_interval (plist, pos);
2192 nprops = interval->nprops;
2193 if (deeper || ! nprops)
2195 if (from) *from = interval->start;
2196 if (to) *to = interval->end;
2197 return interval->nprops;
2200 val = nprops ? interval->stack[nprops - 1] : NULL;
2204 for (temp = interval;
2206 && (temp->prev->nprops
2208 && (val == temp->prev->stack[temp->prev->nprops - 1]))
2211 *from = temp->start;
2216 for (temp = interval;
2218 && (temp->next->nprops
2220 && val == temp->next->stack[temp->next->nprops - 1])
2230 @brief Create a text property.
2232 The mtext_property () function returns a newly allocated text
2233 property whose key is $KEY and value is $VAL. The created text
2234 property is not attached to any M-text, i.e. it is detached.
2236 $CONTROL_BITS must be 0 or logical OR of @c enum @c
2237 MTextPropertyControl. */
2239 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀ¸À®¤¹¤ë.
2241 ´Ø¿ô mtext_property () ¤Ï $KEY ¤ò¥¡¼¡¢$VAL ¤òÃͤȤ¹¤ë¿·¤·¤¯³ä¤êÅö
2242 ¤Æ¤é¤ì¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÊÖ¤¹¡£À¸À®¤·¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¤¤¤«
2243 ¤Ê¤ë M-text ¤Ë¤âÉղ䵤ì¤Æ¤¤¤Ê¤¤¡¢¤¹¤Ê¤ï¤ÁʬΥ¤·¤Æ (detached) ¤¤¤ë¡£
2245 $CONTROL_BITS ¤Ï 0 ¤Ç¤¢¤ë¤« @c enum @c MTextPropertyControl ¤ÎÏÀÍý
2246 OR ¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ */
2249 mtext_property (MSymbol key, void *val, int control_bits)
2251 return new_text_property (NULL, 0, 0, key, val, control_bits);
2255 @brief Return the M-text of a text property.
2257 The mtext_property_mtext () function returns the M-text to which
2258 text property $PROP is attached. If $PROP is currently detached,
2259 NULL is returned. */
2261 @brief ¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä M-text ¤òÊÖ¤¹.
2263 ´Ø¿ô mtext_property_mtext () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£$PROP ¤¬Éղäµ
2264 ¤ì¤Æ¤¤¤ë M-text ¤òÊÖ¤¹¡£¤½¤Î»þÅÀ¤Ç $PROP ¤¬Ê¬Î¥¤·¤Æ¤¤¤ì¤Ð NULL ¤ò
2268 mtext_property_mtext (MTextProperty *prop)
2274 @brief Return the key of a text property.
2276 The mtext_property_key () function returns the key (symbol) of
2277 text property $PROP. */
2279 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤òÊÖ¤¹.
2281 ´Ø¿ô mtext_property_key () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î¥¡¼¡Ê¥·
2285 mtext_property_key (MTextProperty *prop)
2291 @brief Return the value of a text property.
2293 The mtext_property_value () function returns the value of text
2296 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤòÊÖ¤¹.
2298 ´Ø¿ô mtext_property_value () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤ÎÃͤòÊÖ
2302 mtext_property_value (MTextProperty *prop)
2308 @brief Return the start position of a text property.
2310 The mtext_property_start () function returns the start position of
2311 text property $PROP. The start position is a character position
2312 of an M-text where $PROP begins. If $PROP is detached, it returns
2315 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î³«»Ï°ÌÃÖ¤òÊÖ¤¹.
2317 ´Ø¿ô mtext_property_start () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î³«»Ï°Ì
2318 ÃÖ¤òÊÖ¤¹¡£³«»Ï°ÌÃÖ¤È¤Ï M-text Ãæ¤Ç $PROP ¤¬»Ï¤Þ¤ëʸ»ú°ÌÃ֤Ǥ¢¤ë¡£
2319 $PROP ¤¬Ê¬Î¥¤µ¤ì¤Æ¤¤¤ì¤Ð¡¢-1 ¤òÊÖ¤¹¡£ */
2322 mtext_property_start (MTextProperty *prop)
2324 return (prop->mt ? prop->start : -1);
2328 @brief Return the end position of a text property.
2330 The mtext_property_end () function returns the end position of
2331 text property $PROP. The end position is a character position of
2332 an M-text where $PROP ends. If $PROP is detached, it returns
2335 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î½ªÎ»°ÌÃÖ¤òÊÖ¤¹.
2337 ´Ø¿ô mtext_property_end () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î½ªÎ»°ÌÃÖ
2338 ¤òÊÖ¤¹¡£½ªÎ»°ÌÃÖ¤È¤Ï M-text Ãæ¤Ç $PROP ¤¬½ª¤ëʸ»ú°ÌÃ֤Ǥ¢¤ë¡£$PROP
2339 ¤¬Ê¬Î¥¤µ¤ì¤Æ¤¤¤ì¤Ð¡¢-1 ¤òÊÖ¤¹¡£ */
2342 mtext_property_end (MTextProperty *prop)
2344 return (prop->mt ? prop->end : -1);
2348 @brief Get the topmost text property.
2350 The mtext_get_property () function searches the character at
2351 position $POS in M-text $MT for a text property whose key is $KEY.
2354 If a text property is found, mtext_get_property () returns it. If
2355 there are multiple text properties, it returns the topmost one.
2356 If no such property is found, it returns @c NULL without changing
2357 the external variable #merror_code.
2359 If an error is detected, mtext_get_property () returns @c NULL and
2360 assigns an error code to the external variable #merror_code. */
2362 @brief °ìÈÖ¾å¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÆÀ¤ë.
2364 ´Ø¿ô mtext_get_property () ¤Ï M-text $MT ¤Î°ÌÃÖ $POS ¤Îʸ»ú¤¬¥¡¼
2365 ¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¤«¤É¤¦¤«¤òÄ´¤Ù¤ë¡£
2368 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬¸«¤Ä¤«¤ì¤Ð¡¢mtext_get_property () ¤Ï¤½¤ì¤òÊÖ¤¹¡£
2369 Ê£¿ô¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢°ìÈÖ¾å¤Î¤â¤Î¤òÊÖ¤¹¡£¸«¤Ä¤«¤é¤Ê¤±¤ì¤Ð¡¢³°ÉôÊÑ¿ô
2370 #merror_code ¤òÊѤ¨¤ë¤³¤È¤Ê¤¯ @c NULL ¤òÊÖ¤¹¡£
2372 ¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç mtext_get_property () ¤Ï @c NULL ¤òÊÖ¤·¡¢³°
2373 ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2376 mtext_get_property (MText *mt, int pos, MSymbol key)
2379 MInterval *interval;
2381 M_CHECK_POS (mt, pos, NULL);
2383 plist = get_plist_create (mt, key, 0);
2387 interval = find_interval (plist, pos);
2388 if (! interval->nprops)
2390 return interval->stack[interval->nprops - 1];
2394 @brief Get multiple text properties.
2396 The mtext_get_properties () function searches the character at
2397 $POS in M-text $MT for properties whose key is $KEY. If such
2398 properties are found, they are stored in the memory area pointed
2399 to by $PROPS. $NUM limits the maximum number of stored
2403 If the operation was successful, mtext_get_properties () returns
2404 the number of actually stored properties. If the character at
2405 $POS does not have a property whose key is $KEY, the return value
2406 is 0. If an error is detected, mtext_get_properties () returns -1
2407 and assigns an error code to the external variable #merror_code. */
2409 @brief Ê£¿ô¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÆÀ¤ë.
2411 ´Ø¿ô mtext_get_properties () ¤Ï M-text $MT ¤Î°ÌÃÖ $POS ¤Îʸ»ú¤¬¥¡¼
2412 ¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¤«¤É¤¦¤«¤òÄ´¤Ù¤ë¡£¤½¤Î¤è¤¦¤Ê
2413 ¥×¥í¥Ñ¥Æ¥£¤¬¤ß¤Ä¤«¤ì¤Ð¡¢$PROPS ¤¬»Ø¤¹¥á¥â¥êÎΰè¤ËÊݸ¤¹¤ë¡£$NUM ¤Ï
2414 Êݸ¤µ¤ì¤ë¥×¥í¥Ñ¥Æ¥£¤Î¿ô¤Î¾å¸Â¤Ç¤¢¤ë¡£
2417 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_get_properties () ¤Ï¼ÂºÝ¤ËÊݸ¤·¤¿¥×¥í¥Ñ¥Æ¥£
2418 ¤Î¿ô¤òÊÖ¤¹¡£$POS ¤Î°ÌÃÖ¤Îʸ»ú¤¬¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿
2419 ¤Ê¤±¤ì¤Ð¡¢0 ¤¬Ê֤롣¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç¤Ë¤Ï¡¢
2420 mtext_get_properties () ¤Ï -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼
2421 ¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2424 mtext_get_properties (MText *mt, int pos, MSymbol key,
2425 MTextProperty **props, int num)
2428 MInterval *interval;
2433 M_CHECK_POS (mt, pos, -1);
2435 plist = get_plist_create (mt, key, 0);
2439 interval = find_interval (plist, pos);
2440 /* It is assured that INTERVAL is not NULL. */
2441 nprops = interval->nprops;
2442 if (nprops == 0 || num <= 0)
2444 if (nprops == 1 || num == 1)
2446 props[0] = interval->stack[nprops - 1];
2451 num = nprops, offset = 0;
2453 offset = nprops - num;
2454 for (i = 0; i < num; i++)
2455 props[i] = interval->stack[offset + i];
2460 @brief Attach a text property to an M-text.
2462 The mtext_attach_property () function attaches text property $PROP
2463 to the range between $FROM and $TO in M-text $MT. If $PROP is
2464 already attached to an M-text, it is detached before attached to
2468 If the operation was successful, mtext_attach_property () returns
2469 0. Otherwise it returns -1 and assigns an error code to the
2470 external variable #merror_code. */
2472 @brief M-text¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÉղ乤ë.
2474 ´Ø¿ô mtext_attach_property () ¤Ï¡¢M-text $MT ¤Î $FROM ¤«¤é $TO ¤Þ
2475 ¤Ç¤ÎÎΰè¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤òÉղ乤롣¤â¤· $PROP ¤¬´û¤Ë
2476 M-text ¤ËÉղ䵤ì¤Æ¤¤¤ì¤Ð¡¢$MT ¤ËÉղ乤ëÁ°¤ËʬΥ¤µ¤ì¤ë¡£
2479 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_attach_property () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
2480 ¤ì¤Ð -1 ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2484 mtext_attach_property (MText *mt, int from, int to, MTextProperty *prop)
2487 MInterval *interval;
2489 M_CHECK_RANGE (mt, from, to, -1, 0);
2491 M17N_OBJECT_REF (prop);
2493 mtext_detach_property (prop);
2494 prepare_to_modify (mt, from, to, prop->key);
2495 plist = get_plist_create (mt, prop->key, 1);
2496 xassert (check_plist (plist, 0) == 0);
2497 interval = pop_all_properties (plist, from, to);
2498 xassert (check_plist (plist, 0) == 0);
2502 PUSH_PROP (interval, prop);
2503 M17N_OBJECT_UNREF (prop);
2504 xassert (check_plist (plist, 0) == 0);
2506 maybe_merge_interval (plist, interval);
2508 maybe_merge_interval (plist, interval->prev);
2509 xassert (check_plist (plist, 0) == 0);
2514 @brief Detach a text property from an M-text.
2516 The mtext_detach_property () function makes text property $PROP
2520 This function always returns 0. */
2522 @brief M-text ¤«¤é¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òʬΥ¤¹¤ë.
2524 ´Ø¿ô mtext_detach_property () ¤Ï¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤òʬΥ¤¹¤ë¡£
2527 ¤³¤Î´Ø¿ô¤Ï¾ï¤Ë 0 ¤òÊÖ¤¹¡£ */
2530 mtext_detach_property (MTextProperty *prop)
2533 int start = prop->start, end = prop->end;
2537 prepare_to_modify (prop->mt, start, end, prop->key);
2538 plist = get_plist_create (prop->mt, prop->key, 0);
2540 detach_property (plist, prop, NULL);
2545 @brief Push a text property onto an M-text.
2547 The mtext_push_property () function attaches text property $PROP on
2548 M-text $MT by the "push" manner.
2551 If the operation was successful, mtext_push_property () returns
2552 0. Otherwise it returns -1 and assigns an error code to the
2553 external variable #merror_code. */
2555 @brief M-text ¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥×¥Ã¥·¥å¤¹¤ë.
2557 ´Ø¿ô mtext_push_property () ¤Ï¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤òM-text
2558 $MT ¤Ë¥×¥Ã¥·¥å¤·¤ÆÉղ乤롣
2561 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_push_property () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
2562 ¤ì¤Ð -1 ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2566 mtext_push_property (MText *mt, int from, int to, MTextProperty *prop)
2569 MInterval *head, *tail, *interval;
2570 int check_head, check_tail;
2572 M_CHECK_RANGE (mt, from, to, -1, 0);
2574 M17N_OBJECT_REF (prop);
2576 mtext_detach_property (prop);
2577 prepare_to_modify (mt, from, to, prop->key);
2578 plist = get_plist_create (mt, prop->key, 1);
2583 /* Find an interval that covers the position FROM. */
2584 head = find_interval (plist, from);
2586 /* If the found interval starts before FROM, divide it at FROM. */
2587 if (head->start < from)
2589 divide_interval (plist, head, from);
2596 /* Find an interval that ends at TO. If TO is not at the end of an
2597 interval, make one that ends at TO. */
2598 if (head->end == to)
2603 else if (head->end > to)
2605 divide_interval (plist, head, to);
2611 tail = find_interval (plist, to);
2617 else if (tail->start == to)
2624 divide_interval (plist, tail, to);
2629 /* Push PROP to the current values of intervals between HEAD and TAIL
2630 (both inclusive). */
2631 for (interval = head; ; interval = interval->next)
2633 PUSH_PROP (interval, prop);
2634 if (interval == tail)
2638 /* If there is a possibility that TAIL now has the same value as the
2639 next one, check it and concatenate them if necessary. */
2640 if (tail->next && check_tail)
2641 maybe_merge_interval (plist, tail);
2643 /* If there is a possibility that HEAD now has the same value as the
2644 previous one, check it and concatenate them if necessary. */
2645 if (head->prev && check_head)
2646 maybe_merge_interval (plist, head->prev);
2648 M17N_OBJECT_UNREF (prop);
2649 xassert (check_plist (plist, 0) == 0);
2654 @brief Symbol for specifying serializer functions.
2656 To serialize a text property, the user must supply a serializer
2657 function for that text property. This is done by giving a symbol
2658 property whose key is #Mtext_prop_serializer and value is a
2659 pointer to an appropriate serializer function.
2661 @seealso Mtext_prop_serializer (), MTextPropSerializeFunc
2664 @brief ¥·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë.
2666 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¤¿¤á¤Ë¡¢¥æ¡¼¥¶¤Ï¥Æ¥¥¹¥È¥×¥í¥Ñ
2667 ¥Æ¥£ÍѤΥ·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤òÍ¿¤¨¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¶ñÂÎŪ¤Ë¤Ï¡¢
2668 #Mtext_prop_serializer ¤ò¥¡¼¤È¤·¡¢Å¬Àڤʥ·¥ê¥¢¥é¥¤¥º´Ø¿ô¤Ø¤Î¥Ý¥¤
2669 ¥ó¥¿¤òÃͤȤ¹¤ë¥·¥ó¥Ü¥ë¤ò»ØÄꤹ¤ë¡£
2671 @seealso Mtext_prop_serializer (), MTextPropSerializeFunc
2673 MSymbol Mtext_prop_serializer;
2676 @brief Symbol for specifying deserializer functions.
2678 To deserialize a text property, the user must supply a deserializer
2679 function for that text property. This is done by giving a symbol
2680 property whose key is #Mtext_prop_deserializer and value is a
2681 pointer to an appropriate deserializer function.
2683 @seealso Mtext_prop_serializer (), MTextPropSerializeFunc
2686 @brief ¥Ç¥·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë.
2688 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¤¿¤á¤Ë¡¢¥æ¡¼¥¶¤Ï¥Æ¥¥¹¥È¥×¥í
2689 ¥Ñ¥Æ¥£ÍѤΥǥ·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤òÍ¿¤¨¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¶ñÂÎŪ¤Ë¤Ï¡¢
2690 #Mtext_prop_deserializer ¤ò¥¡¼¤È¤·¡¢Å¬Àڤʥǥ·¥ê¥¢¥é¥¤¥º´Ø¿ô¤Ø¤Î
2691 ¥Ý¥¤¥ó¥¿¤òÃͤȤ¹¤ë¥·¥ó¥Ü¥ë¤ò»ØÄꤹ¤ë¡£
2693 @seealso Mtext_prop_serializer (), MTextPropSerializeFunc
2695 MSymbol Mtext_prop_deserializer;
2698 @brief Serialize text properties in an M-text.
2700 The mtext_serialize () function serializes the text between $FROM
2701 and $TO in M-text $MT. The serialized result is an M-text in the
2702 form of XML. $PROPERTY_LIST limits the text properties to be
2703 serialized. If a symbol
2704 @li appears as the value of an element in $PROPERTY_LIST (the key must be @c Mt ), and
2705 @li has the symbol property #Mtext_prop_serializer,
2707 a text property having that symbol as its key is turned into the
2708 "property" element in the resulting XML representation.
2710 The DTD of the generated XML is as follows:
2714 <!ELEMENT mtext (property*,body+)>
2715 <!ELEMENT property EMPTY>
2716 <!ELEMENT body (#PCDATA)>
2717 <!ATTLIST property key CDATA #REQUIRED>
2718 <!ATTLIST property value CDATA #REQUIRED>
2719 <!ATTLIST property from CDATA #REQUIRED>
2720 <!ATTLIST property to CDATA #REQUIRED>
2721 <!ATTLIST property control CDATA #REQUIRED>
2725 This function depends on the libxml2 library. If the m17n library
2726 is configured without libxml2, this function always fails.
2729 If the operation was successful, mtext_serialize () returns an
2730 M-text in the form of XML. Otherwise it returns @c NULL and assigns an
2731 error code to the external variable #merror_code.
2734 mtext_deserialize (), Mtext_prop_serializer */
2736 @brief M-text Ãæ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë.
2738 ´Ø¿ô mtext_serialize () ¤Ï M-text $MT ¤Î $FROM ¤«¤é $TO ¤Þ¤Ç¤Î¥Æ¥
2739 ¥¹¥È¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¡£¥·¥ê¥¢¥é¥¤¥º¤·¤¿·ë²Ì XML ·Á¼°¤Î M-text ¤Ç
2740 ¤¢¤ë¡£ $PROPERTY_LIST ¤Ï¥·¥ê¥¢¥é¥¤¥º¤µ¤ì¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¸ÂÄê
2742 @li $PROPERTY_LIST (¥¡¼¤Ï @c Mt) ¤ÎÍ×ÁǤÎÃͤȤ·¤Æ¸½¤ï¤ì¡¢
2743 @li ¥·¥ó¥Ü¥ë¥×¥í¥Ñ¥Æ¥£ #Mtext_prop_serializer ¤ò»ý¤Ä¤Ê¤é¤Ð¡¢
2745 ¤³¤Î¥·¥ó¥Ü¥ë¤ò¥¡¼¤È¤¹¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¡¢À¸À®¤µ¤ì¤ë XML ɽ¸½
2746 Ãæ¤Ç "property" Í×ÁǤËÊÑ´¹¤µ¤ì¤ë¡£
2748 À¸À®¤µ¤ì¤ë XML ¤Î DTD ¤Ï°Ê²¼¤ÎÄ̤ê:
2752 <!ELEMENT mtext (property*,body+)>
2753 <!ELEMENT property EMPTY>
2754 <!ELEMENT body (#PCDATA)>
2755 <!ATTLIST property key CDATA #REQUIRED>
2756 <!ATTLIST property value CDATA #REQUIRED>
2757 <!ATTLIST property from CDATA #REQUIRED>
2758 <!ATTLIST property to CDATA #REQUIRED>
2759 <!ATTLIST property control CDATA #REQUIRED>
2763 ¤³¤Î´Ø¿ô¤Ï libxml2 ¥é¥¤¥Ö¥é¥ê¤Ë°Í¸¤¹¤ë¡£m17n ¥é¥¤¥Ö¥é¥ê¤¬libxml2
2764 ̵¤·¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤³¤Î´Ø¿ô¤Ï¾ï¤Ë¼ºÇÔ¤¹¤ë¡£
2767 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_serialize () ¤Ï XML ·Á¼°¤Ç M-text ¤òÊÖ¤¹¡£
2768 ¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É
2772 mtext_deserialize (), Mtext_prop_serializer */
2775 mtext_serialize (MText *mt, int from, int to, MPlist *property_list)
2779 MTextPropSerializeFunc func;
2786 M_CHECK_RANGE (mt, from, to, NULL, NULL);
2787 doc = xmlParseMemory (XML_TEMPLATE, strlen (XML_TEMPLATE) + 1);
2788 node = xmlDocGetRootElement (doc);
2791 MPLIST_DO (pl, property_list)
2793 MSymbol key = MPLIST_VAL (pl);
2795 func = (MTextPropSerializeFunc) msymbol_get (key, Mtext_prop_serializer);
2797 extract_text_properties (mt, from, to, key, plist);
2801 MPLIST_DO (pl, plist)
2803 MTextProperty *prop = MPLIST_VAL (pl);
2805 MPlist *serialized_plist;
2808 func = (MTextPropSerializeFunc) msymbol_get (prop->key,
2809 Mtext_prop_serializer);
2810 serialized_plist = (func) (prop->val);
2811 if (! serialized_plist)
2814 mplist__serialize (work, serialized_plist);
2815 child = xmlNewChild (node, NULL, (xmlChar *) "property", NULL);
2816 xmlSetProp (child, (xmlChar *) "key",
2817 (xmlChar *) MSYMBOL_NAME (prop->key));
2818 xmlSetProp (child, (xmlChar *) "value", (xmlChar *) MTEXT_DATA (work));
2819 sprintf (buf, "%d", prop->start - from);
2820 xmlSetProp (child, (xmlChar *) "from", (xmlChar *) buf);
2821 sprintf (buf, "%d", prop->end - from);
2822 xmlSetProp (child, (xmlChar *) "to", (xmlChar *) buf);
2823 sprintf (buf, "%d", prop->control.flag);
2824 xmlSetProp (child, (xmlChar *) "control", (xmlChar *) buf);
2825 xmlAddChild (node, xmlNewText ((xmlChar *) "\n"));
2827 M17N_OBJECT_UNREF (serialized_plist);
2829 M17N_OBJECT_UNREF (plist);
2831 if (from > 0 || to < mtext_nchars (mt))
2832 mtext_copy (work, 0, mt, from, to);
2835 M17N_OBJECT_UNREF (work);
2838 for (from = 0, to = mtext_nchars (mt); from <= to; from++)
2840 ptr = MTEXT_DATA (mt) + POS_CHAR_TO_BYTE (mt, from);
2841 xmlNewTextChild (node, NULL, (xmlChar *) "body", (xmlChar *) ptr);
2842 from = mtext_character (mt, from, to, 0);
2847 xmlDocDumpMemoryEnc (doc, (xmlChar **) &ptr, &n, "UTF-8");
2850 mtext__cat_data (work, ptr, n, MTEXT_FORMAT_UTF_8);
2852 #else /* not HAVE_XML2 */
2853 MERROR (MERROR_TEXTPROP, NULL);
2854 #endif /* not HAVE_XML2 */
2858 @brief Deserialize text properties in an M-text.
2860 The mtext_deserialize () function deserializes M-text $MT. $MT
2861 must be an XML having the followng DTD.
2865 <!ELEMENT mtext (property*,body+)>
2866 <!ELEMENT property EMPTY>
2867 <!ELEMENT body (#PCDATA)>
2868 <!ATTLIST property key CDATA #REQUIRED>
2869 <!ATTLIST property value CDATA #REQUIRED>
2870 <!ATTLIST property from CDATA #REQUIRED>
2871 <!ATTLIST property to CDATA #REQUIRED>
2872 <!ATTLIST property control CDATA #REQUIRED>
2876 This function depends on the libxml2 library. If the m17n library
2877 is configured without libxml2, this function always fail.
2880 If the operation was successful, mtext_deserialize () returns the
2881 resulting M-text. Otherwise it returns @c NULL and assigns an error
2882 code to the external variable #merror_code.
2885 mtext_serialize (), Mtext_prop_deserializer */
2887 @brief M-text Ãæ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë.
2889 ´Ø¿ô mtext_deserialize () ¤Ï M-text $MT ¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¡£$MT
2890 ¤Ï¼¡¤Î DTD ¤ò»ý¤Ä XML ¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
2894 <!ELEMENT mtext (property*,body+)>
2895 <!ELEMENT property EMPTY>
2896 <!ELEMENT body (#PCDATA)>
2897 <!ATTLIST property key CDATA #REQUIRED>
2898 <!ATTLIST property value CDATA #REQUIRED>
2899 <!ATTLIST property from CDATA #REQUIRED>
2900 <!ATTLIST property to CDATA #REQUIRED>
2901 <!ATTLIST property control CDATA #REQUIRED>
2905 ¤³¤Î´Ø¿ô¤Ï libxml2 ¥é¥¤¥Ö¥é¥ê¤Ë°Í¸¤¹¤ë¡£m17n ¥é¥¤¥Ö¥é¥ê¤¬libxml2
2906 ̵¤·¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤³¤Î´Ø¿ô¤Ï¾ï¤Ë¼ºÇÔ¤¹¤ë¡£
2909 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_serialize () ¤ÏÆÀ¤é¤ì¤¿ M-text ¤ò
2910 ÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼
2914 mtext_serialize (), Mtext_prop_deserializer */
2917 mtext_deserialize (MText *mt)
2922 xmlXPathContextPtr context;
2923 xmlXPathObjectPtr result;
2924 xmlChar *body_str, *key_str, *val_str, *from_str, *to_str, *ctl_str;
2927 if (mt->format > MTEXT_FORMAT_UTF_8)
2928 MERROR (MERROR_TEXTPROP, NULL);
2929 doc = xmlParseMemory ((char *) MTEXT_DATA (mt), mtext_nbytes (mt));
2931 MERROR (MERROR_TEXTPROP, NULL);
2932 node = xmlDocGetRootElement (doc);
2936 MERROR (MERROR_TEXTPROP, NULL);
2938 if (xmlStrcmp (node->name, (xmlChar *) "mtext"))
2941 MERROR (MERROR_TEXTPROP, NULL);
2944 context = xmlXPathNewContext (doc);
2945 result = xmlXPathEvalExpression ((xmlChar *) "//body", context);
2946 if (xmlXPathNodeSetIsEmpty (result->nodesetval))
2949 MERROR (MERROR_TEXTPROP, NULL);
2951 for (i = 0, mt = mtext (); i < result->nodesetval->nodeNr; i++)
2954 mtext_cat_char (mt, 0);
2955 node = (xmlNodePtr) result->nodesetval->nodeTab[i];
2956 body_str = xmlNodeListGetString (doc, node->xmlChildrenNode, 1);
2959 mtext__cat_data (mt, body_str, strlen ((char *) body_str),
2960 MTEXT_FORMAT_UTF_8);
2965 result = xmlXPathEvalExpression ((xmlChar *) "//property", context);
2966 if (! xmlXPathNodeSetIsEmpty (result->nodesetval))
2967 for (i = 0; i < result->nodesetval->nodeNr; i++)
2970 MTextPropDeserializeFunc func;
2971 MTextProperty *prop;
2973 int from, to, control;
2976 key_str = xmlGetProp (result->nodesetval->nodeTab[i],
2978 val_str = xmlGetProp (result->nodesetval->nodeTab[i],
2979 (xmlChar *) "value");
2980 from_str = xmlGetProp (result->nodesetval->nodeTab[i],
2981 (xmlChar *) "from");
2982 to_str = xmlGetProp (result->nodesetval->nodeTab[i],
2984 ctl_str = xmlGetProp (result->nodesetval->nodeTab[i],
2985 (xmlChar *) "control");
2987 key = msymbol ((char *) key_str);
2988 func = ((MTextPropDeserializeFunc)
2989 msymbol_get (key, Mtext_prop_deserializer));
2992 plist = mplist__from_string (val_str, strlen ((char *) val_str));
2995 if (sscanf ((char *) from_str, "%d", &from) != 1
2996 || from < 0 || from >= mtext_nchars (mt))
2998 if (sscanf ((char *) to_str, "%d", &to) != 1
2999 || to <= from || to > mtext_nchars (mt))
3001 if (sscanf ((char *) ctl_str, "%d", &control) != 1
3002 || control < 0 || control > MTEXTPROP_CONTROL_MAX)
3004 val = (func) (plist);
3005 M17N_OBJECT_UNREF (plist);
3006 prop = mtext_property (key, val, control);
3007 if (key->managing_key)
3008 M17N_OBJECT_UNREF (val);
3009 mtext_push_property (mt, from, to, prop);
3010 M17N_OBJECT_UNREF (prop);
3018 xmlXPathFreeContext (context);
3021 #else /* not HAVE_XML2 */
3022 MERROR (MERROR_TEXTPROP, NULL);
3023 #endif /* not HAVE_XML2 */