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 positions 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 DELETING
1025 is nonzero, we are going to delete text, thus both strongly and
1026 weakly volatile properties must be deleted. Otherwise we are going
1027 to modify a text property KEY, thus only strongly volatile
1028 properties whose key is not KEY must be deleted. */
1031 prepare_to_modify (MText *mt, int from, int to, MSymbol key, int deleting)
1033 MTextPlist *plist = mt->plist, *prev = NULL;
1034 int mask_bits = MTEXTPROP_VOLATILE_STRONG;
1037 mask_bits |= MTEXTPROP_VOLATILE_WEAK;
1040 if (plist->key != key
1041 && ! delete_properties (plist, from, to, mask_bits, deleting))
1044 plist = prev->next = free_textplist (plist);
1046 plist = mt->plist = free_textplist (plist);
1049 prev = plist, plist = plist->next;
1054 extract_text_properties (MText *mt, int from, int to, MSymbol key,
1058 MTextPlist *list = get_plist_create (mt, key, 0);
1059 MInterval *interval;
1063 interval = find_interval (list, from);
1064 if (interval->nprops == 0
1065 && interval->start <= from && interval->end >= to)
1068 while (interval && interval->start < to)
1070 if (interval->nprops == 0)
1071 top = mplist_find_by_key (top, Mnil);
1074 MPlist *current = top, *place;
1077 for (i = 0; i < interval->nprops; i++)
1079 MTextProperty *prop = interval->stack[i];
1081 place = mplist_find_by_value (current, prop);
1083 current = MPLIST_NEXT (place);
1086 place = mplist_find_by_value (top, prop);
1090 if (MPLIST_NEXT (place) == MPLIST_NEXT (current))
1093 mplist_push (current, Mt, prop);
1094 current = MPLIST_NEXT (current);
1098 interval = interval->next;
1103 #define XML_TEMPLATE "<?xml version=\"1.0\" ?>\n\
1104 <!DOCTYPE mtext [\n\
1105 <!ELEMENT mtext (property*,body+)>\n\
1106 <!ELEMENT property EMPTY>\n\
1107 <!ELEMENT body (#PCDATA)>\n\
1108 <!ATTLIST property key CDATA #REQUIRED>\n\
1109 <!ATTLIST property value CDATA #REQUIRED>\n\
1110 <!ATTLIST property from CDATA #REQUIRED>\n\
1111 <!ATTLIST property to CDATA #REQUIRED>\n\
1112 <!ATTLIST property control CDATA #REQUIRED>\n\
1118 /* for debugging... */
1122 dump_interval (MInterval *interval, int indent)
1124 char *prefix = (char *) alloca (indent + 1);
1127 memset (prefix, 32, indent);
1130 fprintf (stderr, "(interval %d-%d (%d)", interval->start, interval->end,
1132 for (i = 0; i < interval->nprops; i++)
1133 fprintf (stderr, "\n%s (%d %d/%d %d-%d 0x%x)",
1135 interval->stack[i]->control.ref_count,
1136 interval->stack[i]->attach_count,
1137 interval->stack[i]->start, interval->stack[i]->end,
1138 (unsigned) interval->stack[i]->val);
1139 fprintf (stderr, ")");
1143 dump_textplist (MTextPlist *plist, int indent)
1145 char *prefix = (char *) alloca (indent + 1);
1147 memset (prefix, 32, indent);
1150 fprintf (stderr, "(properties");
1152 fprintf (stderr, ")\n");
1155 fprintf (stderr, "\n");
1158 MInterval *interval = plist->head;
1160 fprintf (stderr, "%s (%s", prefix, msymbol_name (plist->key));
1163 fprintf (stderr, " (%d %d", interval->start, interval->end);
1164 if (interval->nprops > 0)
1168 for (i = 0; i < interval->nprops; i++)
1169 fprintf (stderr, " 0x%x", (int) interval->stack[i]->val);
1171 fprintf (stderr, ")");
1172 interval = interval->next;
1174 fprintf (stderr, ")\n");
1175 xassert (check_plist (plist, 0) == 0);
1176 plist = plist->next;
1187 M17N_OBJECT_ADD_ARRAY (text_property_table, "Text property");
1188 Mtext_prop_serializer = msymbol ("text-prop-serializer");
1189 Mtext_prop_deserializer = msymbol ("text-prop-deserializer");
1196 MIntervalPool *pool = interval_pool_root.next;
1200 MIntervalPool *next = pool->next;
1204 interval_pool_root.next = NULL;
1208 /** Free all plists. */
1211 mtext__free_plist (MText *mt){
1213 MTextPlist *plist = mt->plist;
1216 plist = free_textplist (plist);
1221 /** Extract intervals between FROM and TO of all properties (except
1222 for volatile ones) in PLIST, and make a new plist from them for
1226 mtext__copy_plist (MTextPlist *plist, int from, int to, MText *mt, int pos)
1228 MTextPlist *copy, *this;
1232 for (copy = NULL; plist && ! copy; plist = plist->next)
1233 copy = copy_single_property (plist, from, to, mt, pos);
1236 for (; plist; plist = plist->next)
1237 if ((this = copy_single_property (plist, from, to, mt, pos)))
1247 mtext__adjust_plist_for_delete (MText *mt, int pos, int len)
1252 if (len == 0 || pos == mt->nchars)
1254 if (len == mt->nchars)
1256 mtext__free_plist (mt);
1261 prepare_to_modify (mt, pos, to, Mnil, 1);
1262 for (plist = mt->plist; plist; plist = plist->next)
1264 MInterval *interval = pop_all_properties (plist, pos, to);
1265 MInterval *prev = interval->prev, *next = interval->next;
1273 adjust_intervals (next, plist->tail, -len);
1279 next = maybe_merge_interval (plist, prev);
1280 plist->cache = next ? next : prev;
1281 free_interval (interval);
1282 xassert (check_plist (plist, 0) == 0);
1287 mtext__adjust_plist_for_insert (MText *mt, int pos, int nchars,
1290 MTextPlist *pl, *pl_last, *pl2, *p;
1292 MInterval *interval;
1294 if (mt->nchars == 0)
1296 mtext__free_plist (mt);
1300 if (pos > 0 && pos < mtext_nchars (mt))
1301 prepare_to_modify (mt, pos, pos, Mnil, 0);
1303 for (pl_last = NULL, pl = mt->plist; pl; pl_last = pl, pl = pl->next)
1305 MInterval *interval, *prev, *next, *head, *tail;
1308 prev = NULL, next = pl->head;
1309 else if (pos == mtext_nchars (mt))
1310 prev = pl->tail, next = NULL;
1313 next = find_interval (pl, pos);
1314 if (next->start < pos)
1316 divide_interval (pl, next, pos);
1319 for (i = 0; i < next->nprops; i++)
1320 if (next->stack[i]->start < pos)
1321 split_property (next->stack[i], next);
1325 xassert (check_plist (pl, 0) == 0);
1326 for (p = NULL, pl2 = plist; pl2 && pl->key != pl2->key;
1327 p = pl2, pl2 = p->next);
1330 xassert (check_plist (pl2, pl2->head->start) == 0);
1332 p->next = pl2->next;
1334 plist = plist->next;
1342 head = tail = new_interval (pos, pos + nchars);
1355 adjust_intervals (next, pl->tail, nchars);
1357 xassert (check_plist (pl, 0) == 0);
1358 if (prev && prev->nprops > 0)
1360 for (interval = prev;
1361 interval->next != next && interval->next->nprops == 0;
1362 interval = interval->next)
1363 for (i = 0; i < interval->nprops; i++)
1365 MTextProperty *prop = interval->stack[i];
1367 if (prop->control.flag & MTEXTPROP_REAR_STICKY)
1368 PUSH_PROP (interval->next, prop);
1371 xassert (check_plist (pl, 0) == 0);
1372 if (next && next->nprops > 0)
1374 for (interval = next;
1375 interval->prev != prev && interval->prev->nprops == 0;
1376 interval = interval->prev)
1377 for (i = 0; i < interval->nprops; i++)
1379 MTextProperty *prop = interval->stack[i];
1381 if (prop->control.flag & MTEXTPROP_FRONT_STICKY)
1382 PUSH_PROP (interval->prev, prop);
1386 interval = prev ? prev : pl->head;
1387 pl->cache = interval;
1388 while (interval && interval->start <= pos + nchars)
1389 interval = maybe_merge_interval (pl, interval);
1390 xassert (check_plist (pl, 0) == 0);
1394 pl_last->next = plist;
1398 for (; plist; plist = plist->next)
1400 plist->cache = plist->head;
1403 if (plist->head->nprops)
1405 interval = new_interval (0, pos);
1406 interval->next = plist->head;
1407 plist->head->prev = interval;
1408 plist->head = interval;
1411 plist->head->start = 0;
1413 if (pos < mtext_nchars (mt))
1415 if (plist->tail->nprops)
1417 interval = new_interval (pos + nchars,
1418 mtext_nchars (mt) + nchars);
1419 interval->prev = plist->tail;
1420 plist->tail->next = interval;
1421 plist->tail = interval;
1424 plist->tail->end = mtext_nchars (mt) + nchars;
1426 xassert (check_plist (plist, 0) == 0);
1430 /* len1 > 0 && len2 > 0 */
1433 mtext__adjust_plist_for_change (MText *mt, int pos, int len1, int len2)
1435 int pos2 = pos + len1;
1437 prepare_to_modify (mt, pos, pos2, Mnil, 0);
1441 int diff = len2 - len1;
1444 for (plist = mt->plist; plist; plist = plist->next)
1446 MInterval *head = find_interval (plist, pos2);
1447 MInterval *tail = mt->plist->tail;
1448 MTextProperty *prop;
1451 if (head->start == pos2)
1453 while (tail != head)
1455 for (i = 0; i < tail->nprops; i++)
1457 prop = tail->stack[i];
1458 if (prop->start == tail->start)
1459 prop->start += diff, prop->end += diff;
1461 tail->start += diff;
1465 for (i = 0; i < tail->nprops; i++)
1466 tail->stack[i]->end += diff;
1470 else if (len1 > len2)
1472 mtext__adjust_plist_for_delete (mt, pos + len2, len1 - len2);
1478 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
1483 /*** @addtogroup m17nTextProperty */
1488 @brief Get the value of the topmost text property.
1490 The mtext_get_prop () function searches the character at $POS in
1491 M-text $MT for the text property whose key is $KEY.
1494 If a text property is found, mtext_get_prop () returns the value
1495 of the property. If the property has multiple values, it returns
1496 the topmost one. If no such property is found, it returns @c NULL
1497 without changing the external variable #merror_code.
1499 If an error is detected, mtext_get_prop () returns @c NULL and
1500 assigns an error code to the external variable #merror_code.
1502 @note If @c NULL is returned without an error, there are two
1505 @li the character at $POS does not have a property whose key is $KEY, or
1507 @li the character does have such a property and its value is @c NULL.
1509 If you need to distinguish these two cases, use the
1510 mtext_get_prop_values () function instead. */
1513 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î°ìÈÖ¾å¤ÎÃͤòÆÀ¤ë.
1515 ´Ø¿ô mtext_get_prop () ¤Ï¡¢M-text $MT Æâ¤Î°ÌÃÖ $POS ¤Ë¤¢¤ëʸ»ú¤Î¥Æ
1516 ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¤â¤Î¤òõ¤¹¡£
1519 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬¤ß¤Ä¤«¤ì¤Ð¡¢mtext_get_prop () ¤Ï¤½¤Î¥×¥í¥Ñ¥Æ¥£
1520 ¤ÎÃͤòÊÖ¤¹¡£Ãͤ¬Ê£¿ô¸ºß¤¹¤ë¤È¤¤Ï¡¢°ìÈÖ¾å¤ÎÃͤòÊÖ¤¹¡£¸«¤Ä¤«¤é¤Ê¤±
1521 ¤ì¤Ð³°ÉôÊÑ¿ô #merror_code ¤òÊѹ¹¤¹¤ë¤³¤È¤Ê¤¯ @c NULL ¤òÊÖ¤¹¡£
1523 ¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç mtext_get_prop () ¤Ï @c NULL ¤òÊÖ¤·¡¢³°ÉôÊÑ
1524 ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1526 @note ¥¨¥é¡¼¤Ê¤·¤Ç @c NULL ¤¬ÊÖ¤µ¤ì¤¿¾ì¹ç¤Ë¤ÏÆó¤Ä¤Î²ÄǽÀ¤¬¤¢¤ë¡£
1528 @li $POS ¤Î°ÌÃÖ¤Îʸ»ú¤Ï $KEY ¤ò¥¡¼¤È¤¹¤ë¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿¤Ê¤¤¡£
1530 @li ¤½¤Îʸ»ú¤Ï¤½¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Á¡¢¤½¤ÎÃͤ¬ @c NULL ¤Ç¤¢¤ë¡£
1532 ¤³¤ÎÆó¤Ä¤ò¶èÊ̤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢´Ø¿ô mtext_get_prop_values ()
1533 ¤òÂå¤ï¤ê¤Ë»ÈÍѤ¹¤ë¤³¤È¡£
1535 @latexonly \IPAlabel{mtext_get_prop} @endlatexonly */
1539 @c MERROR_RANGE, @c MERROR_SYMBOL
1542 mtext_get_prop_values (), mtext_put_prop (), mtext_put_prop_values (),
1543 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1546 mtext_get_prop (MText *mt, int pos, MSymbol key)
1549 MInterval *interval;
1552 M_CHECK_POS (mt, pos, NULL);
1554 plist = get_plist_create (mt, key, 0);
1558 interval = find_interval (plist, pos);
1559 val = (interval->nprops
1560 ? interval->stack[interval->nprops - 1]->val : NULL);
1567 @brief Get multiple values of a text property.
1569 The mtext_get_prop_values () function searches the character at
1570 $POS in M-text $MT for the property whose key is $KEY. If such
1571 a property is found, its values are stored in the memory area
1572 pointed to by $VALUES. $NUM limits the maximum number of stored
1576 If the operation was successful, mtext_get_prop_values () returns
1577 the number of actually stored values. If the character at $POS
1578 does not have a property whose key is $KEY, the return value is
1579 0. If an error is detected, mtext_get_prop_values () returns -1 and
1580 assigns an error code to the external variable #merror_code. */
1583 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤòÊ£¿ô¸ÄÆÀ¤ë.
1585 ´Ø¿ô mtext_get_prop_values () ¤Ï¡¢M-text $MT Æâ¤Ç $POS ¤È¤¤¤¦°ÌÃÖ
1586 ¤Ë¤¢¤ëʸ»ú¤Î¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¤â¤Î¤òõ¤¹¡£¤â¤·¤½
1587 ¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤¬¸«¤Ä¤«¤ì¤Ð¡¢¤½¤ì¤¬»ý¤ÄÃÍ (Ê£¿ô²Ä) ¤ò $VALUES
1588 ¤Î»Ø¤¹¥á¥â¥êÎΰè¤Ë³ÊǼ¤¹¤ë¡£$NUM ¤Ï³ÊǼ¤¹¤ëÃͤοô¤Î¾å¸Â¤Ç¤¢¤ë¡£
1591 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_get_prop_values () ¤Ï¼ÂºÝ¤Ë¥á¥â¥ê¤Ë³ÊǼ¤µ
1592 ¤ì¤¿Ãͤοô¤òÊÖ¤¹¡£$POS ¤Î°ÌÃÖ¤Îʸ»ú¤¬ $KEY ¤ò¥¡¼¤È¤¹¤ë¥×¥í¥Ñ¥Æ¥£
1593 ¤ò»ý¤¿¤Ê¤±¤ì¤Ð 0 ¤òÊÖ¤¹¡£¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç¤Ï -1 ¤òÊÖ¤·¡¢³°Éô
1594 ÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1596 @latexonly \IPAlabel{mtext_get_prop_values} @endlatexonly */
1600 @c MERROR_RANGE, @c MERROR_SYMBOL
1603 mtext_get_prop (), mtext_put_prop (), mtext_put_prop_values (),
1604 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1607 mtext_get_prop_values (MText *mt, int pos, MSymbol key,
1608 void **values, int num)
1611 MInterval *interval;
1616 M_CHECK_POS (mt, pos, -1);
1618 plist = get_plist_create (mt, key, 0);
1622 interval = find_interval (plist, pos);
1623 /* It is assured that INTERVAL is not NULL. */
1624 nprops = interval->nprops;
1625 if (nprops == 0 || num <= 0)
1627 if (nprops == 1 || num == 1)
1629 values[0] = interval->stack[nprops - 1]->val;
1634 num = nprops, offset = 0;
1636 offset = nprops - num;
1637 for (i = 0; i < num; i++)
1638 values[i] = interval->stack[offset + i]->val;
1645 @brief Get a list of text property keys at a position of an M-text.
1647 The mtext_get_prop_keys () function creates an array whose
1648 elements are the keys of text properties found at position $POS in
1649 M-text $MT, and sets *$KEYS to the address of the created array.
1650 The user is responsible to free the memory allocated for
1654 If the operation was successful, mtext_get_prop_keys () returns
1655 the length of the key list. Otherwise it returns -1 and assigns
1656 an error code to the external variable #merror_code.
1661 @brief M-text ¤Î»ØÄꤷ¤¿°ÌÃ֤Υƥ¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤Î¥ê¥¹¥È¤òÆÀ¤ë.
1663 ´Ø¿ô mtext_get_prop_keys () ¤Ï¡¢M-text $MT Æâ¤Ç $POS ¤Î°ÌÃ֤ˤ¢¤ë
1664 ¤¹¤Ù¤Æ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤òÍ×ÁǤȤ¹¤ëÇÛÎó¤òºî¤ê¡¢¤½¤ÎÇÛÎó¤Î
1665 ¥¢¥É¥ì¥¹¤ò *$KEYS ¤ËÀßÄꤹ¤ë¡£¤³¤ÎÇÛÎó¤Î¤¿¤á¤Ë³ÎÊݤµ¤ì¤¿¥á¥â¥ê¤ò²ò
1666 Êü¤¹¤ë¤Î¤Ï¥æ¡¼¥¶¤ÎÀÕǤ¤Ç¤¢¤ë¡£
1669 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð mtext_get_prop_keys () ¤ÏÆÀ¤é¤ì¤¿¥ê¥¹¥È¤ÎŤµ¤òÊÖ
1670 ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤ò
1679 mtext_get_prop (), mtext_put_prop (), mtext_put_prop_values (),
1680 mtext_get_prop_values (), mtext_push_prop (), mtext_pop_prop () */
1683 mtext_get_prop_keys (MText *mt, int pos, MSymbol **keys)
1688 M_CHECK_POS (mt, pos, -1);
1689 for (i = 0, plist = mt->plist; plist; i++, plist = plist->next);
1695 MTABLE_MALLOC (*keys, i, MERROR_TEXTPROP);
1696 for (i = 0, plist = mt->plist; plist; plist = plist->next)
1698 MInterval *interval = find_interval (plist, pos);
1700 if (interval->nprops)
1701 (*keys)[i++] = plist->key;
1709 @brief Set a text property.
1711 The mtext_put_prop () function sets a text property to the
1712 characters between $FROM (inclusive) and $TO (exclusive) in M-text
1713 $MT. $KEY and $VAL specify the key and the value of the text
1714 property. With this function,
1718 M-text: |<------------|-------- MT ---------|------------>|
1719 PROP : <------------------ OLD_VAL -------------------->
1726 M-text: |<------------|-------- MT ---------|------------>|
1727 PROP : <-- OLD_VAL-><-------- VAL -------><-- OLD_VAL-->
1731 If the operation was successful, mtext_put_prop () returns 0.
1732 Otherwise it returns -1 and assigns an error code to the external
1733 variable #merror_code. */
1736 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ¤ë.
1738 ´Ø¿ô mtext_put_prop () ¤Ï¡¢M-text $MT ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é
1739 $TO ¡Ê´Þ¤Þ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¡¢¥¡¼¤¬ $KEY ¤ÇÃͤ¬ $VAL ¤Ç¤¢¤ë¤è
1740 ¤¦¤Ê¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ¤ë¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ
1745 M-text: |<------------|-------- MT ---------|------------>|
1746 PROP: <------------------ OLD_VAL -------------------->
1753 M-text: |<------------|-------- MT ---------|------------>|
1754 PROP: <-- OLD_VAL-><-------- VAL -------><-- OLD_VAL-->
1758 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð mtext_put_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1
1759 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1761 @latexonly \IPAlabel{mtext_put_prop} @endlatexonly */
1765 @c MERROR_RANGE, @c MERROR_SYMBOL
1768 mtext_put_prop_values (), mtext_get_prop (),
1769 mtext_get_prop_values (), mtext_push_prop (),
1770 mtext_pop_prop (), mtext_prop_range () */
1773 mtext_put_prop (MText *mt, int from, int to, MSymbol key, void *val)
1776 MTextProperty *prop;
1777 MInterval *interval;
1779 M_CHECK_RANGE (mt, from, to, -1, 0);
1781 prepare_to_modify (mt, from, to, key, 0);
1782 plist = get_plist_create (mt, key, 1);
1783 interval = pop_all_properties (plist, from, to);
1784 prop = new_text_property (mt, from, to, key, val, 0);
1785 PUSH_PROP (interval, prop);
1786 M17N_OBJECT_UNREF (prop);
1788 maybe_merge_interval (plist, interval);
1790 maybe_merge_interval (plist, interval->prev);
1791 xassert (check_plist (plist, 0) == 0);
1798 @brief Set multiple text properties with the same key.
1800 The mtext_put_prop_values () function sets a text property to the
1801 characters between $FROM (inclusive) and $TO (exclusive) in M-text
1802 $MT. $KEY and $VALUES specify the key and the values of the text
1803 property. $NUM specifies the number of property values to be set.
1806 If the operation was successful, mtext_put_prop_values () returns
1807 0. Otherwise it returns -1 and assigns an error code to the
1808 external variable #merror_code. */
1811 @brief Ʊ¤¸¥¡¼¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÊ£¿ôÀßÄꤹ¤ë.
1813 ´Ø¿ô mtext_put_prop_values () ¤Ï¡¢M-Text $MT ¤Î$FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë
1814 ¤«¤é $TO ¡Ê´Þ¤Þ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀßÄꤹ
1815 ¤ë¡£¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤Ï $KEY ¤Ë¤è¤Ã¤Æ¡¢ÃÍ(Ê£¿ô²Ä)¤Ï $VALUES
1816 ¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤ë¡£$NUM ¤ÏÀßÄꤵ¤ì¤ëÃͤθĿô¤Ç¤¢¤ë¡£
1819 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_put_prop_values () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
1820 ¤ì¤Ð -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1822 @latexonly \IPAlabel{mtext_put_prop_values} @endlatexonly */
1826 @c MERROR_RANGE, @c MERROR_SYMBOL
1829 mtext_put_prop (), mtext_get_prop (), mtext_get_prop_values (),
1830 mtext_push_prop (), mtext_pop_prop (), mtext_prop_range () */
1833 mtext_put_prop_values (MText *mt, int from, int to,
1834 MSymbol key, void **values, int num)
1837 MInterval *interval;
1840 M_CHECK_RANGE (mt, from, to, -1, 0);
1842 prepare_to_modify (mt, from, to, key, 0);
1843 plist = get_plist_create (mt, key, 1);
1844 interval = pop_all_properties (plist, from, to);
1847 PREPARE_INTERVAL_STACK (interval, num);
1848 for (i = 0; i < num; i++)
1851 = new_text_property (mt, from, to, key, values[i], 0);
1852 PUSH_PROP (interval, prop);
1853 M17N_OBJECT_UNREF (prop);
1857 maybe_merge_interval (plist, interval);
1859 maybe_merge_interval (plist, interval->prev);
1860 xassert (check_plist (plist, 0) == 0);
1867 @brief Push a text property.
1869 The mtext_push_prop () function pushes a text property whose key
1870 is $KEY and value is $VAL to the characters between $FROM
1871 (inclusive) and $TO (exclusive) in M-text $MT. With this
1876 M-text: |<------------|-------- MT ---------|------------>|
1877 PROP : <------------------ OLD_VAL -------------------->
1884 M-text: |<------------|-------- MT ---------|------------>|
1885 PROP : <------------------- OLD_VAL ------------------->
1886 PROP : <-------- VAL ------->
1890 If the operation was successful, mtext_push_prop () returns 0.
1891 Otherwise it returns -1 and assigns an error code to the external
1892 variable #merror_code. */
1895 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥×¥Ã¥·¥å¤¹¤ë.
1897 ´Ø¿ô mtext_push_prop () ¤Ï¡¢¥¡¼¤¬ $KEY ¤ÇÃͤ¬ $VAL ¤Ç¤¢¤ë¥Æ¥¥¹¥È
1898 ¥×¥í¥Ñ¥Æ¥£¤ò¡¢M-text $MT Ãæ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é $TO ¡Ê´Þ¤Þ¤ì¤Ê
1899 ¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤Ë¥×¥Ã¥·¥å¤¹¤ë¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ
1903 M-text: |<------------|-------- MT ---------|------------>|
1904 PROP : <------------------ OLD_VAL -------------------->
1909 M-text: |<------------|-------- MT ---------|------------>|
1910 PROP : <------------------- OLD_VAL ------------------->
1911 PROP : <-------- VAL ------->
1915 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_push_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð
1916 -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
1918 @latexonly \IPAlabel{mtext_push_prop} @endlatexonly */
1922 @c MERROR_RANGE, @c MERROR_SYMBOL
1925 mtext_put_prop (), mtext_put_prop_values (),
1926 mtext_get_prop (), mtext_get_prop_values (),
1927 mtext_pop_prop (), mtext_prop_range () */
1930 mtext_push_prop (MText *mt, int from, int to,
1931 MSymbol key, void *val)
1934 MInterval *head, *tail, *interval;
1935 MTextProperty *prop;
1936 int check_head, check_tail;
1938 M_CHECK_RANGE (mt, from, to, -1, 0);
1940 prepare_to_modify (mt, from, to, key, 0);
1941 plist = get_plist_create (mt, key, 1);
1943 /* Find an interval that covers the position FROM. */
1944 head = find_interval (plist, from);
1946 /* If the found interval starts before FROM, divide it at FROM. */
1947 if (head->start < from)
1949 divide_interval (plist, head, from);
1956 /* Find an interval that ends at TO. If TO is not at the end of an
1957 interval, make one that ends at TO. */
1958 if (head->end == to)
1963 else if (head->end > to)
1965 divide_interval (plist, head, to);
1971 tail = find_interval (plist, to);
1977 else if (tail->start == to)
1984 divide_interval (plist, tail, to);
1989 prop = new_text_property (mt, from, to, key, val, 0);
1991 /* Push PROP to the current values of intervals between HEAD and TAIL
1992 (both inclusive). */
1993 for (interval = head; ; interval = interval->next)
1995 PUSH_PROP (interval, prop);
1996 if (interval == tail)
2000 M17N_OBJECT_UNREF (prop);
2002 /* If there is a possibility that TAIL now has the same value as the
2003 next one, check it and concatenate them if necessary. */
2004 if (tail->next && check_tail)
2005 maybe_merge_interval (plist, tail);
2007 /* If there is a possibility that HEAD now has the same value as the
2008 previous one, check it and concatenate them if necessary. */
2009 if (head->prev && check_head)
2010 maybe_merge_interval (plist, head->prev);
2012 xassert (check_plist (plist, 0) == 0);
2019 @brief Pop a text property.
2021 The mtext_pop_prop () function removes the topmost text property
2022 whose key is $KEY from the characters between $FROM (inclusive)
2023 and and $TO (exclusive) in $MT.
2025 This function does nothing if characters in the region have no
2026 such text property. With this function,
2030 M-text: |<------------|-------- MT ---------|------------>|
2031 PROP : <------------------ OLD_VAL -------------------->
2038 M-text: |<------------|-------- MT ---------|------------>|
2039 PROP : <--OLD_VAL-->| |<--OLD_VAL-->|
2043 If the operation was successful, mtext_pop_prop () return 0.
2044 Otherwise it returns -1 and assigns an error code to the external
2045 variable #merror_code. */
2048 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ý¥Ã¥×¤¹¤ë.
2050 ´Ø¿ô mtext_pop_prop () ¤Ï¡¢¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î
2051 ¤¦¤Á°ìÈÖ¾å¤Î¤â¤Î¤ò¡¢M-text $MT ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é $TO¡Ê´Þ¤Þ
2052 ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎʸ»ú¤«¤é¼è¤ê½ü¤¯¡£
2054 »ØÄêÈϰϤÎʸ»ú¤¬¤½¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿¤Ê¤¤¤Ê¤é¤Ð¡¢¤³¤Î´Ø¿ô¤Ï²¿
2055 ¤â¤·¤Ê¤¤¡£¤³¤Î´Ø¿ô¤Ë¤è¤Ã¤Æ¡¢
2059 M-text: |<------------|-------- MT ---------|------------>|
2060 PROP : <------------------ OLD_VAL -------------------->
2062 ¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤Ê¤ë¡£
2065 M-text: |<------------|-------- MT ---------|------------>|
2066 PROP : <--OLD_VAL-->| |<--OLD_VAL-->|
2070 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_pop_prop () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1
2071 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£
2073 @latexonly \IPAlabel{mtext_pop_prop} @endlatexonly */
2077 @c MERROR_RANGE, @c MERROR_SYMBOL
2080 mtext_put_prop (), mtext_put_prop_values (),
2081 mtext_get_prop (), mtext_get_prop_values (),
2082 mtext_push_prop (), mtext_prop_range () */
2085 mtext_pop_prop (MText *mt, int from, int to, MSymbol key)
2088 MInterval *head, *tail;
2092 MERROR (MERROR_TEXTPROP, -1);
2093 M_CHECK_RANGE (mt, from, to, -1, 0);
2094 plist = get_plist_create (mt, key, 0);
2098 /* Find an interval that covers the position FROM. */
2099 head = find_interval (plist, from);
2101 && head->nprops == 0)
2102 /* No property to pop. */
2105 prepare_to_modify (mt, from, to, key, 0);
2107 /* If the found interval starts before FROM and has value(s), divide
2109 if (head->start < from)
2111 if (head->nprops > 0)
2113 divide_interval (plist, head, from);
2121 /* Pop the topmost text property from each interval following HEAD.
2122 Stop at an interval that ends after TO. */
2123 for (tail = head; tail && tail->end <= to; tail = tail->next)
2124 if (tail->nprops > 0)
2129 if (tail->start < to)
2131 if (tail->nprops > 0)
2133 divide_interval (plist, tail, to);
2142 to = plist->tail->start;
2144 /* If there is a possibility that HEAD now has the same text
2145 properties as the previous one, check it and concatenate them if
2147 if (head->prev && check_head)
2149 while (head && head->end <= to)
2150 head = maybe_merge_interval (plist, head);
2152 xassert (check_plist (plist, 0) == 0);
2159 @brief Find the range where the value of a text property is the same.
2161 The mtext_prop_range () function investigates the extent where all
2162 characters have the same value for a text property. It first
2163 finds the value of the property specified by $KEY of the character
2164 at $POS in M-text $MT. Then it checks if adjacent characters have
2165 the same value for the property $KEY. The beginning and the end
2166 of the found range are stored to the variable pointed to by $FROM
2167 and $TO. The character position stored in $FROM is inclusive but
2168 that in $TO is exclusive; this fashion is compatible with the
2169 range specification in the mtext_put_prop () function, etc.
2171 If $DEEPER is not 0, not only the topmost but also all the stacked
2172 properties whose key is $KEY are compared.
2174 If $FROM is @c NULL, the beginning of range is not searched for. If
2175 $TO is @c NULL, the end of range is not searched for.
2179 If the operation was successful, mtext_prop_range () returns the
2180 number of values the property $KEY has at pos. Otherwise it
2181 returns -1 and assigns an error code to the external variable @c
2185 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬Æ±¤¸Ãͤò¤È¤ëÈϰϤòÄ´¤Ù¤ë.
2187 ´Ø¿ô mtext_prop_range () ¤Ï¡¢»ØÄꤷ¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤ¬Æ±¤¸
2188 ¤Ç¤¢¤ëϢ³¤·¤¿Ê¸»ú¤ÎÈϰϤòÄ´¤Ù¤ë¡£¤Þ¤º M-text $MT ¤Î $POS ¤Î°ÌÃÖ¤Ë
2189 ¤¢¤ëʸ»ú¤Î¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á¡¢¥¡¼ $KEY ¤Ç»ØÄꤵ¤ì¤¿¤â¤ÎÃͤò¸«¤Ä¤±
2190 ¤ë¡£¤½¤·¤ÆÁ°¸å¤Îʸ»ú¤â $KEY ¤Î¥×¥í¥Ñ¥Æ¥£¤ÎÃͤ¬Æ±¤¸¤Ç¤¢¤ë¤«¤É¤¦¤«¤ò
2191 Ä´¤Ù¤ë¡£¸«¤Ä¤±¤¿ÈϰϤκǽé¤ÈºÇ¸å¤ò¡¢¤½¤ì¤¾¤ì $FROM ¤È $TO ¤Ë¥Ý¥¤¥ó
2192 ¥È¤µ¤ì¤ëÊÑ¿ô¤ËÊݸ¤¹¤ë¡£$FROM ¤ËÊݸ¤µ¤ì¤ëʸ»ú¤Î°ÌÃ֤ϸ«¤Ä¤±¤¿ÈÏ°Ï
2193 ¤Ë´Þ¤Þ¤ì¤ë¤¬¡¢$TO ¤Ï´Þ¤Þ¤ì¤Ê¤¤¡£¡Ê$TO ¤ÎÁ°¤ÇƱ¤¸Ãͤò¤È¤ëÈϰϤϽª¤ï
2194 ¤ë¡£¡Ë¤³¤ÎÈÏ°Ï»ØÄêË¡¤Ï¡¢´Ø¿ô mtext_put_prop () ¤Ê¤É¤È¶¦Ä̤Ǥ¢¤ë¡£
2196 $DEEPER ¤¬ 0 ¤Ç¤Ê¤±¤ì¤Ð¡¢$KEY ¤È¤¤¤¦¥¡¼¤ò»ý¤Ä¥×¥í¥Ñ¥Æ¥£¤Î¤¦¤Á°ìÈÖ
2197 ¾å¤Î¤â¤Î¤À¤±¤Ç¤Ê¤¯¡¢¥¹¥¿¥Ã¥¯Ãæ¤Î¤¹¤Ù¤Æ¤Î¤â¤Î¤¬Èæ³Ó¤µ¤ì¤ë¡£
2199 $FROM ¤¬ @c NULL ¤Ê¤é¤Ð¡¢ÈϰϤλϤޤê¤Ïõº÷¤·¤Ê¤¤¡£$TO ¤¬ @c NULL
2200 ¤Ê¤é¤Ð¡¢ÈϰϤνª¤ê¤Ïõº÷¤·¤Ê¤¤¡£
2203 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_prop_range () ¤Ï $KEY ¥×¥í¥Ñ¥Æ¥£¤ÎÃͤοô¤ò
2204 ÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð-1 ¤òÊÖ¤·¡¢ ³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼
2207 @latexonly \IPAlabel{mtext_prop_range} @endlatexonly */
2211 @c MERROR_RANGE, @c MERROR_SYMBOL
2214 mtext_put_prop (), mtext_put_prop_values (),
2215 mtext_get_prop (), mtext_get_prop_values (),
2216 mtext_pop_prop (), mtext_push_prop () */
2219 mtext_prop_range (MText *mt, MSymbol key, int pos,
2220 int *from, int *to, int deeper)
2223 MInterval *interval, *temp;
2227 M_CHECK_POS (mt, pos, -1);
2229 plist = get_plist_create (mt, key, 0);
2232 if (from) *from = 0;
2233 if (to) *to = mtext_nchars (mt);
2237 interval = find_interval (plist, pos);
2238 nprops = interval->nprops;
2239 if (deeper || ! nprops)
2241 if (from) *from = interval->start;
2242 if (to) *to = interval->end;
2243 return interval->nprops;
2246 val = nprops ? interval->stack[nprops - 1] : NULL;
2250 for (temp = interval;
2252 && (temp->prev->nprops
2254 && (val == temp->prev->stack[temp->prev->nprops - 1]))
2257 *from = temp->start;
2262 for (temp = interval;
2264 && (temp->next->nprops
2266 && val == temp->next->stack[temp->next->nprops - 1])
2276 @brief Create a text property.
2278 The mtext_property () function returns a newly allocated text
2279 property whose key is $KEY and value is $VAL. The created text
2280 property is not attached to any M-text, i.e. it is detached.
2282 $CONTROL_BITS must be 0 or logical OR of @c enum @c
2283 MTextPropertyControl. */
2286 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÀ¸À®¤¹¤ë.
2288 ´Ø¿ô mtext_property () ¤Ï $KEY ¤ò¥¡¼¡¢$VAL ¤òÃͤȤ¹¤ë¿·¤·¤¯³ä¤êÅö
2289 ¤Æ¤é¤ì¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÊÖ¤¹¡£À¸À®¤·¤¿¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¤¤¤«
2290 ¤Ê¤ë M-text ¤Ë¤âÉղ䵤ì¤Æ¤¤¤Ê¤¤¡¢¤¹¤Ê¤ï¤ÁʬΥ¤·¤Æ (detached) ¤¤¤ë¡£
2292 $CONTROL_BITS ¤Ï 0 ¤Ç¤¢¤ë¤« @c enum @c MTextPropertyControl ¤ÎÏÀÍý
2293 OR ¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ */
2296 mtext_property (MSymbol key, void *val, int control_bits)
2298 return new_text_property (NULL, 0, 0, key, val, control_bits);
2302 @brief Return the M-text of a text property.
2304 The mtext_property_mtext () function returns the M-text to which
2305 text property $PROP is attached. If $PROP is currently detached,
2306 NULL is returned. */
2309 @brief ¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä M-text ¤òÊÖ¤¹.
2311 ´Ø¿ô mtext_property_mtext () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£$PROP ¤¬Éղäµ
2312 ¤ì¤Æ¤¤¤ë M-text ¤òÊÖ¤¹¡£¤½¤Î»þÅÀ¤Ç $PROP ¤¬Ê¬Î¥¤·¤Æ¤¤¤ì¤Ð NULL ¤ò
2316 mtext_property_mtext (MTextProperty *prop)
2322 @brief Return the key of a text property.
2324 The mtext_property_key () function returns the key (symbol) of
2325 text property $PROP. */
2328 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î¥¡¼¤òÊÖ¤¹.
2330 ´Ø¿ô mtext_property_key () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î¥¡¼¡Ê¥·
2334 mtext_property_key (MTextProperty *prop)
2340 @brief Return the value of a text property.
2342 The mtext_property_value () function returns the value of text
2346 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ÎÃͤòÊÖ¤¹.
2348 ´Ø¿ô mtext_property_value () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤ÎÃͤòÊÖ
2352 mtext_property_value (MTextProperty *prop)
2358 @brief Return the start position of a text property.
2360 The mtext_property_start () function returns the start position of
2361 text property $PROP. The start position is a character position
2362 of an M-text where $PROP begins. If $PROP is detached, it returns
2366 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î³«»Ï°ÌÃÖ¤òÊÖ¤¹.
2368 ´Ø¿ô mtext_property_start () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î³«»Ï°Ì
2369 ÃÖ¤òÊÖ¤¹¡£³«»Ï°ÌÃÖ¤È¤Ï M-text Ãæ¤Ç $PROP ¤¬»Ï¤Þ¤ëʸ»ú°ÌÃ֤Ǥ¢¤ë¡£
2370 $PROP ¤¬Ê¬Î¥¤µ¤ì¤Æ¤¤¤ì¤Ð¡¢-1 ¤òÊÖ¤¹¡£ */
2373 mtext_property_start (MTextProperty *prop)
2375 return (prop->mt ? prop->start : -1);
2379 @brief Return the end position of a text property.
2381 The mtext_property_end () function returns the end position of
2382 text property $PROP. The end position is a character position of
2383 an M-text where $PROP ends. If $PROP is detached, it returns
2387 @brief ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Î½ªÎ»°ÌÃÖ¤òÊÖ¤¹.
2389 ´Ø¿ô mtext_property_end () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤Î½ªÎ»°ÌÃÖ
2390 ¤òÊÖ¤¹¡£½ªÎ»°ÌÃÖ¤È¤Ï M-text Ãæ¤Ç $PROP ¤¬½ª¤ëʸ»ú°ÌÃ֤Ǥ¢¤ë¡£$PROP
2391 ¤¬Ê¬Î¥¤µ¤ì¤Æ¤¤¤ì¤Ð¡¢-1 ¤òÊÖ¤¹¡£ */
2394 mtext_property_end (MTextProperty *prop)
2396 return (prop->mt ? prop->end : -1);
2400 @brief Get the topmost text property.
2402 The mtext_get_property () function searches the character at
2403 position $POS in M-text $MT for a text property whose key is $KEY.
2406 If a text property is found, mtext_get_property () returns it. If
2407 there are multiple text properties, it returns the topmost one.
2408 If no such property is found, it returns @c NULL without changing
2409 the external variable #merror_code.
2411 If an error is detected, mtext_get_property () returns @c NULL and
2412 assigns an error code to the external variable #merror_code. */
2415 @brief °ìÈÖ¾å¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÆÀ¤ë.
2417 ´Ø¿ô mtext_get_property () ¤Ï M-text $MT ¤Î°ÌÃÖ $POS ¤Îʸ»ú¤¬¥¡¼
2418 ¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¤«¤É¤¦¤«¤òÄ´¤Ù¤ë¡£
2421 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤¬¸«¤Ä¤«¤ì¤Ð¡¢mtext_get_property () ¤Ï¤½¤ì¤òÊÖ¤¹¡£
2422 Ê£¿ô¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢°ìÈÖ¾å¤Î¤â¤Î¤òÊÖ¤¹¡£¸«¤Ä¤«¤é¤Ê¤±¤ì¤Ð¡¢³°ÉôÊÑ¿ô
2423 #merror_code ¤òÊѤ¨¤ë¤³¤È¤Ê¤¯ @c NULL ¤òÊÖ¤¹¡£
2425 ¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç mtext_get_property () ¤Ï @c NULL ¤òÊÖ¤·¡¢³°
2426 ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2429 mtext_get_property (MText *mt, int pos, MSymbol key)
2432 MInterval *interval;
2434 M_CHECK_POS (mt, pos, NULL);
2436 plist = get_plist_create (mt, key, 0);
2440 interval = find_interval (plist, pos);
2441 if (! interval->nprops)
2443 return interval->stack[interval->nprops - 1];
2447 @brief Get multiple text properties.
2449 The mtext_get_properties () function searches the character at
2450 $POS in M-text $MT for properties whose key is $KEY. If such
2451 properties are found, they are stored in the memory area pointed
2452 to by $PROPS. $NUM limits the maximum number of stored
2456 If the operation was successful, mtext_get_properties () returns
2457 the number of actually stored properties. If the character at
2458 $POS does not have a property whose key is $KEY, the return value
2459 is 0. If an error is detected, mtext_get_properties () returns -1
2460 and assigns an error code to the external variable #merror_code. */
2463 @brief Ê£¿ô¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÆÀ¤ë.
2465 ´Ø¿ô mtext_get_properties () ¤Ï M-text $MT ¤Î°ÌÃÖ $POS ¤Îʸ»ú¤¬¥¡¼
2466 ¤¬ $KEY ¤Ç¤¢¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¤«¤É¤¦¤«¤òÄ´¤Ù¤ë¡£¤½¤Î¤è¤¦¤Ê
2467 ¥×¥í¥Ñ¥Æ¥£¤¬¤ß¤Ä¤«¤ì¤Ð¡¢$PROPS ¤¬»Ø¤¹¥á¥â¥êÎΰè¤ËÊݸ¤¹¤ë¡£$NUM ¤Ï
2468 Êݸ¤µ¤ì¤ë¥×¥í¥Ñ¥Æ¥£¤Î¿ô¤Î¾å¸Â¤Ç¤¢¤ë¡£
2471 ½èÍý¤¬À®¸ù¤¹¤ì¤Ð¡¢mtext_get_properties () ¤Ï¼ÂºÝ¤ËÊݸ¤·¤¿¥×¥í¥Ñ¥Æ¥£
2472 ¤Î¿ô¤òÊÖ¤¹¡£$POS ¤Î°ÌÃÖ¤Îʸ»ú¤¬¥¡¼¤¬ $KEY ¤Ç¤¢¤ë¥×¥í¥Ñ¥Æ¥£¤ò»ý¤¿
2473 ¤Ê¤±¤ì¤Ð¡¢0 ¤¬Ê֤롣¥¨¥é¡¼¤¬¸¡½Ð¤µ¤ì¤¿¾ì¹ç¤Ë¤Ï¡¢
2474 mtext_get_properties () ¤Ï -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼
2475 ¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2478 mtext_get_properties (MText *mt, int pos, MSymbol key,
2479 MTextProperty **props, int num)
2482 MInterval *interval;
2487 M_CHECK_POS (mt, pos, -1);
2489 plist = get_plist_create (mt, key, 0);
2493 interval = find_interval (plist, pos);
2494 /* It is assured that INTERVAL is not NULL. */
2495 nprops = interval->nprops;
2496 if (nprops == 0 || num <= 0)
2498 if (nprops == 1 || num == 1)
2500 props[0] = interval->stack[nprops - 1];
2505 num = nprops, offset = 0;
2507 offset = nprops - num;
2508 for (i = 0; i < num; i++)
2509 props[i] = interval->stack[offset + i];
2514 @brief Attach a text property to an M-text.
2516 The mtext_attach_property () function attaches text property $PROP
2517 to the range between $FROM and $TO in M-text $MT. If $PROP is
2518 already attached to an M-text, it is detached before attached to
2522 If the operation was successful, mtext_attach_property () returns
2523 0. Otherwise it returns -1 and assigns an error code to the
2524 external variable #merror_code. */
2527 @brief M-text¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òÉղ乤ë.
2529 ´Ø¿ô mtext_attach_property () ¤Ï¡¢M-text $MT ¤Î $FROM ¤«¤é $TO ¤Þ
2530 ¤Ç¤ÎÎΰè¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤òÉղ乤롣¤â¤· $PROP ¤¬´û¤Ë
2531 M-text ¤ËÉղ䵤ì¤Æ¤¤¤ì¤Ð¡¢$MT ¤ËÉղ乤ëÁ°¤ËʬΥ¤µ¤ì¤ë¡£
2534 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_attach_property () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
2535 ¤ì¤Ð -1 ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2539 mtext_attach_property (MText *mt, int from, int to, MTextProperty *prop)
2542 MInterval *interval;
2544 M_CHECK_RANGE (mt, from, to, -1, 0);
2546 M17N_OBJECT_REF (prop);
2548 mtext_detach_property (prop);
2549 prepare_to_modify (mt, from, to, prop->key, 0);
2550 plist = get_plist_create (mt, prop->key, 1);
2551 xassert (check_plist (plist, 0) == 0);
2552 interval = pop_all_properties (plist, from, to);
2553 xassert (check_plist (plist, 0) == 0);
2557 PUSH_PROP (interval, prop);
2558 M17N_OBJECT_UNREF (prop);
2559 xassert (check_plist (plist, 0) == 0);
2561 maybe_merge_interval (plist, interval);
2563 maybe_merge_interval (plist, interval->prev);
2564 xassert (check_plist (plist, 0) == 0);
2569 @brief Detach a text property from an M-text.
2571 The mtext_detach_property () function makes text property $PROP
2575 This function always returns 0. */
2578 @brief M-text ¤«¤é¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤òʬΥ¤¹¤ë.
2580 ´Ø¿ô mtext_detach_property () ¤Ï¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤òʬΥ¤¹¤ë¡£
2583 ¤³¤Î´Ø¿ô¤Ï¾ï¤Ë 0 ¤òÊÖ¤¹¡£ */
2586 mtext_detach_property (MTextProperty *prop)
2589 int start = prop->start, end = prop->end;
2593 prepare_to_modify (prop->mt, start, end, prop->key, 0);
2594 plist = get_plist_create (prop->mt, prop->key, 0);
2596 detach_property (plist, prop, NULL);
2601 @brief Push a text property onto an M-text.
2603 The mtext_push_property () function pushes text property $PROP to
2604 the characters between $FROM (inclusive) and $TO (exclusive) in
2608 If the operation was successful, mtext_push_property () returns
2609 0. Otherwise it returns -1 and assigns an error code to the
2610 external variable #merror_code. */
2613 @brief M-text ¤Ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥×¥Ã¥·¥å¤¹¤ë.
2615 ´Ø¿ô mtext_push_property () ¤Ï¡¢¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ $PROP ¤ò¡¢
2616 M-text $MT Ãæ¤Î $FROM ¡Ê´Þ¤Þ¤ì¤ë¡Ë¤«¤é $TO ¡Ê´Þ¤Þ¤ì¤Ê¤¤¡Ë¤ÎÈϰϤÎ
2617 ʸ»ú¤Ë¥×¥Ã¥·¥å¤¹¤ë¡£
2620 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_push_property () ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±
2621 ¤ì¤Ð -1 ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤òÀßÄꤹ¤ë¡£ */
2625 mtext_push_property (MText *mt, int from, int to, MTextProperty *prop)
2628 MInterval *head, *tail, *interval;
2629 int check_head, check_tail;
2631 M_CHECK_RANGE (mt, from, to, -1, 0);
2633 M17N_OBJECT_REF (prop);
2635 mtext_detach_property (prop);
2636 prepare_to_modify (mt, from, to, prop->key, 0);
2637 plist = get_plist_create (mt, prop->key, 1);
2642 /* Find an interval that covers the position FROM. */
2643 head = find_interval (plist, from);
2645 /* If the found interval starts before FROM, divide it at FROM. */
2646 if (head->start < from)
2648 divide_interval (plist, head, from);
2655 /* Find an interval that ends at TO. If TO is not at the end of an
2656 interval, make one that ends at TO. */
2657 if (head->end == to)
2662 else if (head->end > to)
2664 divide_interval (plist, head, to);
2670 tail = find_interval (plist, to);
2676 else if (tail->start == to)
2683 divide_interval (plist, tail, to);
2688 /* Push PROP to the current values of intervals between HEAD and TAIL
2689 (both inclusive). */
2690 for (interval = head; ; interval = interval->next)
2692 PUSH_PROP (interval, prop);
2693 if (interval == tail)
2697 /* If there is a possibility that TAIL now has the same value as the
2698 next one, check it and concatenate them if necessary. */
2699 if (tail->next && check_tail)
2700 maybe_merge_interval (plist, tail);
2702 /* If there is a possibility that HEAD now has the same value as the
2703 previous one, check it and concatenate them if necessary. */
2704 if (head->prev && check_head)
2705 maybe_merge_interval (plist, head->prev);
2707 M17N_OBJECT_UNREF (prop);
2708 xassert (check_plist (plist, 0) == 0);
2713 @brief Symbol for specifying serializer functions.
2715 To serialize a text property, the user must supply a serializer
2716 function for that text property. This is done by giving a symbol
2717 property whose key is #Mtext_prop_serializer and value is a
2718 pointer to an appropriate serializer function.
2721 mtext_serialize (), #MTextPropSerializeFunc
2725 @brief ¥·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë.
2727 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¤¿¤á¤Ë¤Ï¡¢¤½¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ
2728 ¥Æ¥£ÍѤΥ·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤òÍ¿¤¨¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¶ñÂÎŪ¤Ë¤Ï¡¢
2729 #Mtext_prop_serializer ¤ò¥¡¼¤È¤·¡¢Å¬Àڤʥ·¥ê¥¢¥é¥¤¥º´Ø¿ô¤Ø¤Î¥Ý¥¤
2730 ¥ó¥¿¤òÃͤȤ¹¤ë¥·¥ó¥Ü¥ë¥×¥í¥Ñ¥Æ¥£¤ò»ØÄꤹ¤ë¡£
2733 mtext_serialize (), #MTextPropSerializeFunc
2735 MSymbol Mtext_prop_serializer;
2738 @brief Symbol for specifying deserializer functions.
2740 To deserialize a text property, the user must supply a deserializer
2741 function for that text property. This is done by giving a symbol
2742 property whose key is #Mtext_prop_deserializer and value is a
2743 pointer to an appropriate deserializer function.
2746 mtext_deserialize (), #MTextPropSerializeFunc
2750 @brief ¥Ç¥·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë.
2752 ¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¤¿¤á¤Ë¤Ï¡¢¤½¤Î¥Æ¥¥¹¥È¥×¥í
2753 ¥Ñ¥Æ¥£ÍѤΥǥ·¥ê¥¢¥é¥¤¥¶´Ø¿ô¤òÍ¿¤¨¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¶ñÂÎŪ¤Ë¤Ï¡¢
2754 #Mtext_prop_deserializer ¤ò¥¡¼¤È¤·¡¢Å¬Àڤʥǥ·¥ê¥¢¥é¥¤¥º´Ø¿ô¤Ø¤Î
2755 ¥Ý¥¤¥ó¥¿¤òÃͤȤ¹¤ë¥·¥ó¥Ü¥ë¥×¥í¥Ñ¥Æ¥£¤ò»ØÄꤹ¤ë¡£
2758 mtext_deserialize (), #MTextPropSerializeFunc
2760 MSymbol Mtext_prop_deserializer;
2763 @brief Serialize text properties in an M-text.
2765 The mtext_serialize () function serializes the text between $FROM
2766 and $TO in M-text $MT. The serialized result is an M-text in a
2767 form of XML. $PROPERTY_LIST limits the text properties to be
2768 serialized. Only those text properties whose key
2770 @li appears as the value of an element in $PROPERTY_LIST, and
2771 @li has the symbol property #Mtext_prop_serializer
2773 are serialized as a "property" element in the resulting XML
2776 The DTD of the generated XML is as follows:
2780 <!ELEMENT mtext (property*,body+)>
2781 <!ELEMENT property EMPTY>
2782 <!ELEMENT body (#PCDATA)>
2783 <!ATTLIST property key CDATA #REQUIRED>
2784 <!ATTLIST property value CDATA #REQUIRED>
2785 <!ATTLIST property from CDATA #REQUIRED>
2786 <!ATTLIST property to CDATA #REQUIRED>
2787 <!ATTLIST property control CDATA #REQUIRED>
2791 This function depends on the libxml2 library. If the m17n library
2792 is configured without libxml2, this function always fails.
2795 If the operation was successful, mtext_serialize () returns an
2796 M-text in the form of XML. Otherwise it returns @c NULL and assigns an
2797 error code to the external variable #merror_code.
2800 mtext_deserialize (), #Mtext_prop_serializer */
2803 @brief M-text Ãæ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë.
2805 ´Ø¿ô mtext_serialize () ¤Ï M-text $MT ¤Î $FROM ¤«¤é $TO ¤Þ¤Ç¤Î¥Æ¥
2806 ¥¹¥È¤ò¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¡£¥·¥ê¥¢¥é¥¤¥º¤·¤¿·ë²Ì¤Ï XML ·Á¼°¤Î M-text ¤Ç
2807 ¤¢¤ë¡£ $PROPERTY_LIST ¤Ï¥·¥ê¥¢¥é¥¤¥º¤µ¤ì¤ë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¸ÂÄê
2808 ¤¹¤ë¡£ÂоݤȤʤë¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¡¢¤½¤Î¥¡¼¤¬
2810 @li $PROPERTY_LIST ¤ÎÍ×ÁǤÎÃͤȤ·¤Æ¸½¤ï¤ì¡¢¤«¤Ä
2811 @li ¥·¥ó¥Ü¥ë¥×¥í¥Ñ¥Æ¥£ #Mtext_prop_serializer ¤ò»ý¤Ä
2813 ¤â¤Î¤Î¤ß¤Ç¤¢¤ë¡£¤³¤Î¾ò·ï¤òËþ¤¿¤¹¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤Ï¡¢À¸À®¤µ¤ì¤ë
2814 XML ɽ¸½Ãæ¤Ç "property" Í×ÁǤ˥·¥ê¥¢¥é¥¤¥º¤µ¤ì¤ë¡£
2816 À¸À®¤µ¤ì¤ë XML ¤Î DTD ¤Ï°Ê²¼¤ÎÄ̤ê:
2820 <!ELEMENT mtext (property*,body+)>
2821 <!ELEMENT property EMPTY>
2822 <!ELEMENT body (#PCDATA)>
2823 <!ATTLIST property key CDATA #REQUIRED>
2824 <!ATTLIST property value CDATA #REQUIRED>
2825 <!ATTLIST property from CDATA #REQUIRED>
2826 <!ATTLIST property to CDATA #REQUIRED>
2827 <!ATTLIST property control CDATA #REQUIRED>
2831 ¤³¤Î´Ø¿ô¤Ï libxml2 ¥é¥¤¥Ö¥é¥ê¤Ë°Í¸¤¹¤ë¡£m17n ¥é¥¤¥Ö¥é¥ê¤¬libxml2
2832 ̵¤·¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤³¤Î´Ø¿ô¤Ï¾ï¤Ë¼ºÇÔ¤¹¤ë¡£
2835 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_serialize () ¤Ï XML ·Á¼°¤Ç M-text ¤òÊÖ¤¹¡£
2836 ¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô#merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É
2840 mtext_deserialize (), #Mtext_prop_serializer */
2843 mtext_serialize (MText *mt, int from, int to, MPlist *property_list)
2847 MTextPropSerializeFunc func;
2854 M_CHECK_RANGE (mt, from, to, NULL, NULL);
2855 doc = xmlParseMemory (XML_TEMPLATE, strlen (XML_TEMPLATE) + 1);
2856 node = xmlDocGetRootElement (doc);
2859 MPLIST_DO (pl, property_list)
2861 MSymbol key = MPLIST_VAL (pl);
2863 func = (MTextPropSerializeFunc) msymbol_get (key, Mtext_prop_serializer);
2865 extract_text_properties (mt, from, to, key, plist);
2869 MPLIST_DO (pl, plist)
2871 MTextProperty *prop = MPLIST_VAL (pl);
2873 MPlist *serialized_plist;
2876 func = (MTextPropSerializeFunc) msymbol_get (prop->key,
2877 Mtext_prop_serializer);
2878 serialized_plist = (func) (prop->val);
2879 if (! serialized_plist)
2882 mplist__serialize (work, serialized_plist);
2883 child = xmlNewChild (node, NULL, (xmlChar *) "property", NULL);
2884 xmlSetProp (child, (xmlChar *) "key",
2885 (xmlChar *) MSYMBOL_NAME (prop->key));
2886 xmlSetProp (child, (xmlChar *) "value", (xmlChar *) MTEXT_DATA (work));
2887 sprintf (buf, "%d", prop->start - from);
2888 xmlSetProp (child, (xmlChar *) "from", (xmlChar *) buf);
2889 sprintf (buf, "%d", prop->end - from);
2890 xmlSetProp (child, (xmlChar *) "to", (xmlChar *) buf);
2891 sprintf (buf, "%d", prop->control.flag);
2892 xmlSetProp (child, (xmlChar *) "control", (xmlChar *) buf);
2893 xmlAddChild (node, xmlNewText ((xmlChar *) "\n"));
2895 M17N_OBJECT_UNREF (serialized_plist);
2897 M17N_OBJECT_UNREF (plist);
2899 if (from > 0 || to < mtext_nchars (mt))
2900 mtext_copy (work, 0, mt, from, to);
2903 M17N_OBJECT_UNREF (work);
2906 for (from = 0, to = mtext_nchars (mt); from <= to; from++)
2908 ptr = MTEXT_DATA (mt) + POS_CHAR_TO_BYTE (mt, from);
2909 xmlNewTextChild (node, NULL, (xmlChar *) "body", (xmlChar *) ptr);
2910 from = mtext_character (mt, from, to, 0);
2915 xmlDocDumpMemoryEnc (doc, (xmlChar **) &ptr, &n, "UTF-8");
2918 mtext__cat_data (work, ptr, n, MTEXT_FORMAT_UTF_8);
2920 #else /* not HAVE_XML2 */
2921 MERROR (MERROR_TEXTPROP, NULL);
2922 #endif /* not HAVE_XML2 */
2926 @brief Deserialize text properties in an M-text.
2928 The mtext_deserialize () function deserializes M-text $MT. $MT
2929 must be an XML having the followng DTD.
2933 <!ELEMENT mtext (property*,body+)>
2934 <!ELEMENT property EMPTY>
2935 <!ELEMENT body (#PCDATA)>
2936 <!ATTLIST property key CDATA #REQUIRED>
2937 <!ATTLIST property value CDATA #REQUIRED>
2938 <!ATTLIST property from CDATA #REQUIRED>
2939 <!ATTLIST property to CDATA #REQUIRED>
2940 <!ATTLIST property control CDATA #REQUIRED>
2944 This function depends on the libxml2 library. If the m17n library
2945 is configured without libxml2, this function always fail.
2948 If the operation was successful, mtext_deserialize () returns the
2949 resulting M-text. Otherwise it returns @c NULL and assigns an error
2950 code to the external variable #merror_code.
2953 mtext_serialize (), #Mtext_prop_deserializer */
2956 @brief M-text Ãæ¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë.
2958 ´Ø¿ô mtext_deserialize () ¤Ï M-text $MT ¤ò¥Ç¥·¥ê¥¢¥é¥¤¥º¤¹¤ë¡£$MT
2959 ¤Ï¼¡¤Î DTD ¤ò»ý¤Ä XML ¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
2963 <!ELEMENT mtext (property*,body+)>
2964 <!ELEMENT property EMPTY>
2965 <!ELEMENT body (#PCDATA)>
2966 <!ATTLIST property key CDATA #REQUIRED>
2967 <!ATTLIST property value CDATA #REQUIRED>
2968 <!ATTLIST property from CDATA #REQUIRED>
2969 <!ATTLIST property to CDATA #REQUIRED>
2970 <!ATTLIST property control CDATA #REQUIRED>
2974 ¤³¤Î´Ø¿ô¤Ï libxml2 ¥é¥¤¥Ö¥é¥ê¤Ë°Í¸¤¹¤ë¡£m17n ¥é¥¤¥Ö¥é¥ê¤¬libxml2
2975 ̵¤·¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤³¤Î´Ø¿ô¤Ï¾ï¤Ë¼ºÇÔ¤¹¤ë¡£
2978 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð¡¢mtext_serialize () ¤ÏÆÀ¤é¤ì¤¿ M-text ¤ò
2979 ÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤·¤Æ³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼
2983 mtext_serialize (), #Mtext_prop_deserializer */
2986 mtext_deserialize (MText *mt)
2991 xmlXPathContextPtr context;
2992 xmlXPathObjectPtr result;
2993 xmlChar *body_str, *key_str, *val_str, *from_str, *to_str, *ctl_str;
2996 if (mt->format > MTEXT_FORMAT_UTF_8)
2997 MERROR (MERROR_TEXTPROP, NULL);
2998 doc = xmlParseMemory ((char *) MTEXT_DATA (mt), mtext_nbytes (mt));
3000 MERROR (MERROR_TEXTPROP, NULL);
3001 node = xmlDocGetRootElement (doc);
3005 MERROR (MERROR_TEXTPROP, NULL);
3007 if (xmlStrcmp (node->name, (xmlChar *) "mtext"))
3010 MERROR (MERROR_TEXTPROP, NULL);
3013 context = xmlXPathNewContext (doc);
3014 result = xmlXPathEvalExpression ((xmlChar *) "//body", context);
3015 if (xmlXPathNodeSetIsEmpty (result->nodesetval))
3018 MERROR (MERROR_TEXTPROP, NULL);
3020 for (i = 0, mt = mtext (); i < result->nodesetval->nodeNr; i++)
3023 mtext_cat_char (mt, 0);
3024 node = (xmlNodePtr) result->nodesetval->nodeTab[i];
3025 body_str = xmlNodeListGetString (doc, node->xmlChildrenNode, 1);
3028 mtext__cat_data (mt, body_str, strlen ((char *) body_str),
3029 MTEXT_FORMAT_UTF_8);
3034 result = xmlXPathEvalExpression ((xmlChar *) "//property", context);
3035 if (! xmlXPathNodeSetIsEmpty (result->nodesetval))
3036 for (i = 0; i < result->nodesetval->nodeNr; i++)
3039 MTextPropDeserializeFunc func;
3040 MTextProperty *prop;
3042 int from, to, control;
3045 key_str = xmlGetProp (result->nodesetval->nodeTab[i],
3047 val_str = xmlGetProp (result->nodesetval->nodeTab[i],
3048 (xmlChar *) "value");
3049 from_str = xmlGetProp (result->nodesetval->nodeTab[i],
3050 (xmlChar *) "from");
3051 to_str = xmlGetProp (result->nodesetval->nodeTab[i],
3053 ctl_str = xmlGetProp (result->nodesetval->nodeTab[i],
3054 (xmlChar *) "control");
3056 key = msymbol ((char *) key_str);
3057 func = ((MTextPropDeserializeFunc)
3058 msymbol_get (key, Mtext_prop_deserializer));
3061 plist = mplist__from_string (val_str, strlen ((char *) val_str));
3064 if (sscanf ((char *) from_str, "%d", &from) != 1
3065 || from < 0 || from >= mtext_nchars (mt))
3067 if (sscanf ((char *) to_str, "%d", &to) != 1
3068 || to <= from || to > mtext_nchars (mt))
3070 if (sscanf ((char *) ctl_str, "%d", &control) != 1
3071 || control < 0 || control > MTEXTPROP_CONTROL_MAX)
3073 val = (func) (plist);
3074 M17N_OBJECT_UNREF (plist);
3075 prop = mtext_property (key, val, control);
3076 if (key->managing_key)
3077 M17N_OBJECT_UNREF (val);
3078 mtext_push_property (mt, from, to, prop);
3079 M17N_OBJECT_UNREF (prop);
3087 xmlXPathFreeContext (context);
3090 #else /* not HAVE_XML2 */
3091 MERROR (MERROR_TEXTPROP, NULL);
3092 #endif /* not HAVE_XML2 */