1 /* database.c -- database module.
2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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., 51 Franklin Street, Fifth Floor,
24 @addtogroup m17nDatabase
25 @brief The m17n database and API for it.
27 The m17n library acquires various kinds of information
28 from data in the <i> m17n database</i> on demand. Application
29 programs can also add/load their original data to/from the m17n
30 database by setting the variable #mdatabase_dir to an
31 application-specific directory and storing data in it. Users can
32 overwrite those data by storing preferable data in the directory
33 specified by the environment variable "M17NDIR", or if it is not
34 set, in the directory "~/.m17n.d".
36 The m17n database contains multiple heterogeneous data, and each
37 data is identified by four tags; TAG0, TAG1, TAG2, TAG3. Each tag
40 TAG0 specifies the type of data stored in the database as below.
43 If TAG0 is #Mchar_table, the data is of the @e chartable @e
44 type and provides information about each character. In this case,
45 TAG1 specifies the type of the information and must be #Msymbol,
46 #Minteger, #Mstring, #Mtext, or #Mplist. TAG2 and TAG3 can be any
50 If TAG0 is #Mcharset, the data is of the @e charset @e type
51 and provides a decode/encode mapping table for a charset. In this
52 case, TAG1 must be a symbol representing a charset. TAG2 and TAG3
56 If TAG0 is neither #Mchar_table nor #Mcharset, the data is of
57 the @e plist @e type. See the documentation of the
58 mdatabase_load () function for the details.
59 In this case, TAG1, TAG2, and TAG3 can be any symbols.
61 The notation \<TAG0, TAG1, TAG2, TAG3\> means a data with those
64 Application programs first calls the mdatabase_find () function to
65 get a pointer to an object of the type #MDatabase. That object
66 holds information about the specified data. When it is
67 successfully returned, the mdatabase_load () function loads the
68 data. The implementation of the structure #MDatabase is
69 concealed from application programs.
73 @addtogroup m17nDatabase
74 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤È¤½¤ì¤Ë´Ø¤¹¤ë API.
76 m17n ¥é¥¤¥Ö¥é¥ê¤ÏɬÍפ˱þ¤¸¤ÆưŪ¤Ë @e m17n @e ¥Ç¡¼¥¿¥Ù¡¼¥¹
77 ¤«¤é¾ðÊó¤ò¼èÆÀ¤¹¤ë¡£¤Þ¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤â¡¢Æȼ«¤Î¥Ç¡¼¥¿¤ò
78 m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲä·¡¢¤½¤ì¤òưŪ¤Ë¼èÆÀ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
79 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤¬Æȼ«¤Î¥Ç¡¼¥¿¤òÄɲᦼèÆÀ¤¹¤ë¤Ë¤Ï¡¢ÊÑ¿ô
80 #mdatabase_dir ¤Ë¤½¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¸ÇͤΥǥ£¥ì¥¯¥È¥ê¤ò¥»¥Ã¥È¤·¡¢
81 ¤½¤ÎÃæ¤Ë¥Ç¡¼¥¿¤ò³ÊǼ¤¹¤ë¡£¥æ¡¼¥¶¤¬¤½¤Î¥Ç¡¼¥¿¤ò¥ª¡¼¥Ð¡¼¥é¥¤¥È¤·¤¿¤¤
82 ¤È¤¤Ï¡¢´Ä¶ÊÑ¿ô "M17NDIR" ¤Ç»ØÄꤵ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¡Ê»ØÄꤵ¤ì¤Æ¤¤¤Ê
83 ¤¤¤È¤¤Ï "~/.m17n.d" ¤È¤¤¤¦¥Ç¥£¥ì¥¯¥È¥ê¡Ë¤ËÊ̤Υǡ¼¥¿¤òÃÖ¤¯¡£
86 ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤ÏÊ£¿ô¤Î¿Íͤʥǡ¼¥¿¤¬´Þ¤Þ¤ì¤Æ¤ª¤ê¡¢³Æ¥Ç¡¼¥¿¤Ï
87 TAG0, TAG1, TAG2, TAG3¡Ê¤¹¤Ù¤Æ¥·¥ó¥Ü¥ë¡Ë¤Î£´¤Ä¤Î¥¿¥°¤Ë¤è¤Ã¤Æ¼±Ê̤µ¤ì¤ë¡£
89 TAG0 ¤Ë¤è¤Ã¤Æ¡¢¥Ç¡¼¥¿¥Ù¡¼¥¹Æâ¤Î¥Ç¡¼¥¿¤Î¥¿¥¤¥×¤Ï¼¡¤Î¤è¤¦¤Ë»ØÄꤵ¤ì¤ë¡£
92 TAG0 ¤¬ #Mchar_table ¤Ç¤¢¤ë¥Ç¡¼¥¿¤Ï @e chartable¥¿¥¤¥×
93 ¤È¸Æ¤Ð¤ì¡¢³Æʸ»ú¤Ë´Ø¤¹¤ë¾ðÊó¤òÄ󶡤¹¤ë¡£¤³¤Î¾ì¹ç
94 TAG1 ¤Ï¾ðÊó¤Î¼ïÎà¤ò»ØÄꤹ¤ë¥·¥ó¥Ü¥ë¤Ç¤¢¤ê¡¢#Msymbol, #Minteger, #Mstring,
95 #Mtext, #Mplist ¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£TAG2 ¤È TAG3 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
98 TAG0 ¤¬ #Mcharset ¤Ç¤¢¤ë¥Ç¡¼¥¿¤Ï @e charset¥¿¥¤¥×
99 ¤È¸Æ¤Ð¤ì¡¢Ê¸»ú¥»¥Ã¥ÈÍѤΥǥ³¡¼¥É¡¿¥¨¥ó¥³¡¼¥É¥Þ¥Ã¥×¤òÄ󶡤¹¤ë¡£¤³¤Î¾ì¹ç TAG1
100 ¤Ïʸ»ú¥»¥Ã¥È¤Î¥·¥ó¥Ü¥ë¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£TAG2 ¤È TAG3
101 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
104 TAG0 ¤¬ #Mchar_table ¤Ç¤â #Mcharset ¤Ç¤â¤Ê¤¤¾ì¹ç¡¢¤½¤Î¥Ç¡¼¥¿¤Ï @e
105 plist¥¿¥¤¥× ¤Ç¤¢¤ë¡£¾ÜºÙ¤Ë´Ø¤·¤Æ¤Ï´Ø¿ô mdatabase_load ()
106 ¤ÎÀâÌÀ¤ò»²¾È¤Î¤³¤È¡£¤³¤Î¾ì¹ç TAG1¡¢TAG2¡¢TAG3 ¤ÏǤ°Õ¤Î¥·¥ó¥Ü¥ë¤Ç¤è¤¤¡£
108 ÆÃÄê¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò \<TAG0, TAG1, TAG2, TAG3\>
111 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ï¡¢¤Þ¤º´Ø¿ô mdatabase_find ()
112 ¤ò»È¤Ã¤Æ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë´Ø¤¹¤ë¾ðÊó¤òÊÝ»ý¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¡Ê#MDatabase
113 ·¿¡Ë¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÆÀ¤ë¡£¤½¤ì¤ËÀ®¸ù¤·¤¿¤é¡¢ mdatabase_load ()
114 ¤Ë¤è¤Ã¤Æ¼ÂºÝ¤Ë¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¥í¡¼¥É¤¹¤ë¡£¹½Â¤ÂÎ #MDatabase
115 ¼«¿È¤¬¤É¤¦¼ÂÁõ¤µ¤ì¤Æ¤¤¤ë¤«¤Ï¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤«¤é¤Ï¸«¤¨¤Ê¤¤¡£
117 @latexonly \IPAlabel{database} @endlatexonly
122 #if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
123 /*** @addtogroup m17nInternal
131 #include <sys/types.h>
132 #include <sys/stat.h>
139 #include "m17n-core.h"
140 #include "m17n-misc.h"
141 #include "internal.h"
143 #include "character.h"
144 #include "database.h"
147 /** The file containing a list of databases. */
148 #define MDB_DIR "mdb.dir"
149 /** Length of MDB_DIR. */
150 #define MDB_DIR_LEN 7
152 #define MAX_TIME(TIME1, TIME2) ((TIME1) >= (TIME2) ? (TIME1) : (TIME2))
154 #define GEN_PATH(path, dir, dir_len, file, file_len) \
155 (dir_len + file_len > PATH_MAX ? 0 \
156 : (memcpy (path, dir, dir_len), \
157 memcpy (path + dir_len, file, file_len), \
158 path[dir_len + file_len] = '\0', 1))
160 static MSymbol Masterisk;
161 static MSymbol Mversion;
163 /** Structure for a data in the m17n database. */
167 /** Tags to identify the data. <tag>[0] specifies the type of
168 database. If it is #Mchar_table, the type is @e chartable, if
169 it is #Mcharset, the type is @e charset, otherwise the type is
173 void *(*loader) (MSymbol *tags, void *extra_info);
175 /** The meaning of the value is dependent on <loader>. If <loader>
176 is load_database (), the value is a string of the file name that
177 contains the data. */
181 static MPlist *mdatabase__list;
184 read_number (char *buf, int *i)
193 while (c && isspace (c)) c = buf[idx++];
199 for (idx++, c = 0; (n = hex_mnemonic[(unsigned) buf[idx]]) < 16;
213 n = escape_mnemonic[c];
217 while (buf[idx] && buf[idx++] != '\'');
221 else if (hex_mnemonic[c] < 10)
226 while ((n = hex_mnemonic[(unsigned) buf[idx]]) < 10)
227 c = (c * 10) + n, idx++;
233 /** Load a data of type @c chartable from the file FD, and return the
234 newly created chartable. */
237 load_chartable (FILE *fp, MSymbol type)
245 MERROR (MERROR_DB, NULL);
247 table = mchartable (type, (type == Msymbol ? (void *) Mnil
248 : type == Minteger ? (void *) -1
255 for (len = 0; len < 1023 && (c = getc (fp)) != EOF && c != '\n'; len++)
258 if (hex_mnemonic[(unsigned) buf[0]] >= 10)
259 /* skip comment/invalid line */
262 from = read_number (buf, &i);
264 i++, to = read_number (buf, &i);
267 if (from < 0 || to < from)
270 while (buf[i] && isspace ((unsigned) buf[i])) i++;
277 /* VAL is a C-string. */
278 if (! (val = strdup (buf + i)))
279 MEMORY_FULL (MERROR_DB);
281 else if (type == Minteger)
283 /* VAL is an integer. */
289 n = read_number (buf, &i);
292 val = (void *) (n * positive);
294 else if (type == Mtext)
296 /* VAL is an M-text. */
299 mt = mtext__from_data (buf + i, len - i - 1, MTEXT_FORMAT_UTF_8, 1);
303 while ((c = read_number (buf, &i)) >= 0)
304 mt = mtext_cat_char (mt, c);
308 else if (type == Msymbol)
312 while (*p && ! isspace (*p))
314 if (*p == '\\' && p[1] != '\0')
316 memmove (p, p + 1, buf + len - (p + 1));
322 if (! strcmp (buf + i, "nil"))
325 val = (void *) msymbol (buf + i);
327 else if (type == Mplist)
329 val = (void *) mplist__from_string ((unsigned char *) buf + i,
336 mchartable_set (table, from, val);
338 mchartable_set_range (table, from, to, val);
343 M17N_OBJECT_UNREF (table);
344 MERROR (MERROR_DB, NULL);
349 gen_database_name (char *buf, MSymbol *tags)
353 strcpy (buf, msymbol_name (tags[0]));
354 for (i = 1; i < 4; i++)
357 strcat (buf, msymbol_name (tags[i]));
362 /* Return the absolute file name for DB_INFO->filename or NULL if no
363 absolute file name was found. If BUF is non-NULL, store the result
364 of `stat' call in it. In that case, set *RESULT to the return
368 get_database_file (MDatabaseInfo *db_info, struct stat *buf, int *result)
370 if (db_info->absolute_filename)
373 *result = stat (db_info->absolute_filename, buf);
377 struct stat stat_buf;
378 struct stat *statbuf = buf ? buf : &stat_buf;
381 char path[PATH_MAX + 1];
383 MPLIST_DO (plist, mdatabase__dir_list)
385 MDatabaseInfo *dir_info = MPLIST_VAL (plist);
387 if (dir_info->status != MDB_STATUS_DISABLED
388 && GEN_PATH (path, dir_info->filename, dir_info->len,
389 db_info->filename, db_info->len)
390 && (res = stat (path, statbuf)) == 0)
392 db_info->absolute_filename = strdup (path);
400 return db_info->absolute_filename;
404 load_database (MSymbol *tags, void *extra_info)
406 MDatabaseInfo *db_info = extra_info;
408 char *filename = get_database_file (db_info, NULL, NULL);
410 int mdebug_flag = MDEBUG_DATABASE;
413 MDEBUG_PRINT1 (" [DB] <%s>", gen_database_name (buf, tags));
414 if (! filename || ! (fp = fopen (filename, "r")))
417 MDEBUG_PRINT1 (" open fail: %s\n", filename);
419 MDEBUG_PRINT1 (" not found: %s\n", db_info->filename);
420 MERROR (MERROR_DB, NULL);
423 MDEBUG_PRINT1 (" from %s\n", filename);
425 if (tags[0] == Mchar_table)
426 value = load_chartable (fp, tags[1]);
427 else if (tags[0] == Mcharset)
429 if (! mdatabase__load_charset_func)
430 MERROR (MERROR_DB, NULL);
431 value = (*mdatabase__load_charset_func) (fp, tags[1]);
434 value = mplist__from_file (fp, NULL);
438 MERROR (MERROR_DB, NULL);
439 db_info->time = time (NULL);
444 /** Return a newly allocated MDatabaseInfo for DIRNAME. */
446 static MDatabaseInfo *
447 get_dir_info (char *dirname)
449 MDatabaseInfo *dir_info;
451 MSTRUCT_CALLOC (dir_info, MERROR_DB);
454 int len = strlen (dirname);
456 if (len + MDB_DIR_LEN < PATH_MAX)
458 MTABLE_MALLOC (dir_info->filename, len + 2, MERROR_DB);
459 memcpy (dir_info->filename, dirname, len + 1);
460 /* Append PATH_SEPARATOR if DIRNAME doesn't end with it. */
461 if (dir_info->filename[len - 1] != PATH_SEPARATOR)
463 dir_info->filename[len] = PATH_SEPARATOR;
464 dir_info->filename[++len] = '\0';
467 dir_info->status = MDB_STATUS_OUTDATED;
470 dir_info->status = MDB_STATUS_DISABLED;
473 dir_info->status = MDB_STATUS_DISABLED;
477 static void register_databases_in_files (MSymbol tags[4],
478 char *filename, int len);
481 find_database (MSymbol tags[4])
487 if (! mdatabase__list)
489 for (i = 0, plist = mdatabase__list; i < 4; i++)
491 MPlist *pl = mplist__assq (plist, tags[i]);
494 if ((p = mplist__assq (plist, Masterisk)))
496 MDatabaseInfo *db_info;
499 p = MPLIST_PLIST (p);
500 for (j = i + 1; j < 4; j++)
501 p = MPLIST_PLIST (MPLIST_NEXT (p));
502 mdb = MPLIST_VAL (MPLIST_NEXT (p));
503 db_info = mdb->extra_info;
504 if (db_info->status != MDB_STATUS_DISABLED)
506 register_databases_in_files (mdb->tag,
507 db_info->filename, db_info->len);
508 db_info->status = MDB_STATUS_DISABLED;
509 return find_database (tags);
514 plist = MPLIST_PLIST (pl);
515 plist = MPLIST_NEXT (plist);
517 mdb = MPLIST_VAL (plist);
522 free_db_info (MDatabaseInfo *db_info)
524 free (db_info->filename);
525 if (db_info->absolute_filename
526 && db_info->filename != db_info->absolute_filename)
527 free (db_info->absolute_filename);
528 M17N_OBJECT_UNREF (db_info->properties);
533 check_version (MText *version)
535 char *verstr = (char *) MTEXT_DATA (version);
536 char *endp = verstr + mtext_nbytes (version);
540 ver[0] = ver[1] = ver[2] = 0;
541 for (i = 0; verstr < endp; verstr++)
550 if (! isdigit (*verstr))
552 ver[i] = ver[i] * 10 + (*verstr - '0');
554 return (ver[0] < M17NLIB_MAJOR_VERSION
555 || (ver[0] == M17NLIB_MAJOR_VERSION
556 && (ver[1] < M17NLIB_MINOR_VERSION
557 || (ver[1] == M17NLIB_MINOR_VERSION
558 && ver[2] <= M17NLIB_PATCH_LEVEL))));
562 register_database (MSymbol tags[4],
563 void *(*loader) (MSymbol *, void *),
564 void *extra_info, enum MDatabaseStatus status,
568 MDatabaseInfo *db_info;
574 MPLIST_DO (plist, properties)
575 if (MPLIST_PLIST_P (plist))
577 MPlist *p = MPLIST_PLIST (plist);
579 if (MPLIST_SYMBOL_P (p)
580 && MPLIST_SYMBOL (p) == Mversion
581 && MPLIST_MTEXT_P (MPLIST_NEXT (p)))
583 if (check_version (MPLIST_MTEXT (MPLIST_NEXT (p))))
590 for (i = 0, plist = mdatabase__list; i < 4; i++)
592 MPlist *pl = mplist__assq (plist, tags[i]);
595 pl = MPLIST_PLIST (pl);
599 mplist_add (pl, Msymbol, tags[i]);
600 mplist_push (plist, Mplist, pl);
601 M17N_OBJECT_UNREF (pl);
603 plist = MPLIST_NEXT (pl);
606 if (MPLIST_TAIL_P (plist))
608 MSTRUCT_MALLOC (mdb, MERROR_DB);
609 for (i = 0; i < 4; i++)
610 mdb->tag[i] = tags[i];
611 mdb->loader = loader;
612 if (loader == load_database)
614 MSTRUCT_CALLOC (db_info, MERROR_DB);
615 mdb->extra_info = db_info;
620 mdb->extra_info = extra_info;
622 mplist_push (plist, Mt, mdb);
626 mdb = MPLIST_VAL (plist);
627 if (loader == load_database)
628 db_info = mdb->extra_info;
635 db_info->status = status;
636 if (! db_info->filename
637 || strcmp (db_info->filename, (char *) extra_info) != 0)
639 if (db_info->filename)
640 free (db_info->filename);
641 if (db_info->absolute_filename
642 && db_info->filename != db_info->absolute_filename)
643 free (db_info->absolute_filename);
644 db_info->filename = strdup ((char *) extra_info);
645 db_info->len = strlen ((char *) extra_info);
648 if (db_info->filename[0] == PATH_SEPARATOR)
649 db_info->absolute_filename = db_info->filename;
651 db_info->absolute_filename = NULL;
652 M17N_OBJECT_UNREF (db_info->properties);
655 db_info->properties = properties;
656 M17N_OBJECT_REF (properties);
660 if (mdb->tag[0] == Mchar_table
661 && mdb->tag[2] != Mnil
662 && (mdb->tag[1] == Mstring || mdb->tag[1] == Mtext
663 || mdb->tag[1] == Msymbol || mdb->tag[1] == Minteger
664 || mdb->tag[1] == Mplist))
665 mchar__define_prop (mdb->tag[2], mdb->tag[1], mdb);
670 register_databases_in_files (MSymbol tags[4], char *filename, int len)
673 MPlist *load_key = mplist ();
677 MPLIST_DO (plist, mdatabase__dir_list)
682 if (filename[0] == PATH_SEPARATOR)
684 if (glob (filename, GLOB_NOSORT, NULL, &globbuf))
690 MDatabaseInfo *d_info = MPLIST_VAL (plist);
691 char path[PATH_MAX + 1];
693 if (d_info->status == MDB_STATUS_DISABLED)
695 if (! GEN_PATH (path, d_info->filename, d_info->len, filename, len))
697 if (glob (path, GLOB_NOSORT, NULL, &globbuf))
699 headlen = d_info->len;
702 for (i = 0; i < globbuf.gl_pathc; i++)
704 if (! (fp = fopen (globbuf.gl_pathv[i], "r")))
706 pl = mplist__from_file (fp, load_key);
710 if (MPLIST_PLIST_P (pl))
715 for (j = 0, p = MPLIST_PLIST (pl); j < 4 && MPLIST_SYMBOL_P (p);
716 j++, p = MPLIST_NEXT (p))
717 tags2[j] = MPLIST_SYMBOL (p);
720 for (j = 0; j < 4; j++)
721 if (tags[j] != Masterisk && tags[j] != tags2[j])
724 register_database (tags2, load_database,
725 globbuf.gl_pathv[i] + headlen,
728 M17N_OBJECT_UNREF (pl);
731 if (filename[0] == PATH_SEPARATOR)
734 M17N_OBJECT_UNREF (load_key);
738 expand_wildcard_database (MPlist *plist)
741 MDatabaseInfo *db_info;
743 plist = MPLIST_NEXT (plist);
744 while (MPLIST_PLIST_P (plist))
746 plist = MPLIST_PLIST (plist);
747 plist = MPLIST_NEXT (plist);
749 mdb = MPLIST_VAL (plist);
750 if (mdb->loader == load_database
751 && (db_info = mdb->extra_info)
752 && db_info->status != MDB_STATUS_DISABLED)
754 register_databases_in_files (mdb->tag, db_info->filename, db_info->len);
755 db_info->status = MDB_STATUS_DISABLED;
764 /** List of database directories. */
765 MPlist *mdatabase__dir_list;
767 void *(*mdatabase__load_charset_func) (FILE *fp, MSymbol charset_name);
772 MDatabaseInfo *dir_info;
775 mdatabase__load_charset_func = NULL;
777 Mchar_table = msymbol ("char-table");
778 Mcharset = msymbol ("charset");
779 Masterisk = msymbol ("*");
780 Mversion = msymbol ("version");
782 mdatabase__dir_list = mplist ();
783 /** The macro M17NDIR specifies a directory where the system-wide
784 MDB_DIR file exists. */
785 mplist_set (mdatabase__dir_list, Mt, get_dir_info (M17NDIR));
787 /* The variable mdatabase_dir specifies a directory where an
788 application program specific MDB_DIR file exists. */
789 if (mdatabase_dir && strlen (mdatabase_dir) > 0)
790 mplist_push (mdatabase__dir_list, Mt, get_dir_info (mdatabase_dir));
792 /* The environment variable M17NDIR specifies a directory where a
793 user specific MDB_DIR file exists. */
794 path = getenv ("M17NDIR");
795 if (path && strlen (path) > 0)
796 mplist_push (mdatabase__dir_list, Mt, get_dir_info (path));
799 /* If the env var M17NDIR is not set, check "~/.m17n.d". */
800 char *home = getenv ("HOME");
804 && (len = strlen (home))
805 && (path = alloca (len + 9)))
808 if (path[len - 1] != PATH_SEPARATOR)
809 path[len++] = PATH_SEPARATOR;
810 strcpy (path + len, ".m17n.d");
811 dir_info = get_dir_info (path);
812 mplist_push (mdatabase__dir_list, Mt, dir_info);
815 mplist_push (mdatabase__dir_list, Mt, get_dir_info (NULL));
818 mdatabase__list = mplist ();
819 mdatabase__update ();
824 mdatabase__fini (void)
826 MPlist *plist, *p0, *p1, *p2, *p3;
828 MPLIST_DO (plist, mdatabase__dir_list)
829 free_db_info (MPLIST_VAL (plist));
830 M17N_OBJECT_UNREF (mdatabase__dir_list);
832 /* MDATABASE_LIST ::= ((TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) ...) */
833 MPLIST_DO (plist, mdatabase__list)
835 p0 = MPLIST_PLIST (plist);
836 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) */
837 MPLIST_DO (p0, MPLIST_NEXT (p0))
839 p1 = MPLIST_PLIST (p0);
840 /* P1 ::= (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) */
841 MPLIST_DO (p1, MPLIST_NEXT (p1))
843 p2 = MPLIST_PLIST (p1);
844 /* P2 ::= (TAG2 (TAG3 t:MDB) ...) */
845 MPLIST_DO (p2, MPLIST_NEXT (p2))
849 p3 = MPLIST_PLIST (p2); /* P3 ::= (TAG3 t:MDB) */
850 p3 = MPLIST_NEXT (p3);
851 mdb = MPLIST_VAL (p3);
852 if (mdb->loader == load_database)
853 free_db_info (mdb->extra_info);
859 M17N_OBJECT_UNREF (mdatabase__list);
863 mdatabase__update (void)
865 MPlist *plist, *p0, *p1, *p2, *p3;
866 char path[PATH_MAX + 1];
867 MDatabaseInfo *dir_info;
871 /* Update elements of mdatabase__dir_list. */
872 MPLIST_DO (plist, mdatabase__dir_list)
874 dir_info = MPLIST_VAL (plist);
875 if (dir_info->filename)
877 if (stat (dir_info->filename, &statbuf) == 0
878 && (statbuf.st_mode & S_IFDIR))
880 if (dir_info->time < statbuf.st_mtime)
883 dir_info->time = statbuf.st_mtime;
885 if (GEN_PATH (path, dir_info->filename, dir_info->len,
886 MDB_DIR, MDB_DIR_LEN)
887 && stat (path, &statbuf) >= 0
888 && dir_info->time < statbuf.st_mtime)
891 dir_info->time = statbuf.st_mtime;
893 dir_info->status = MDB_STATUS_UPDATED;
897 if (dir_info->status != MDB_STATUS_DISABLED)
901 dir_info->status = MDB_STATUS_DISABLED;
910 /* At first, mark all databases defined automatically from mdb.dir
911 file(s) as "disabled". */
912 MPLIST_DO (plist, mdatabase__list)
914 p0 = MPLIST_PLIST (plist);
915 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
916 MPLIST_DO (p0, MPLIST_NEXT (p0))
918 p1 = MPLIST_PLIST (p0);
919 MPLIST_DO (p1, MPLIST_NEXT (p1))
921 p2 = MPLIST_PLIST (p1);
922 MPLIST_DO (p2, MPLIST_NEXT (p2))
925 MDatabaseInfo *db_info;
927 p3 = MPLIST_PLIST (p2);
928 p3 = MPLIST_NEXT (p3);
929 mdb = MPLIST_VAL (p3);
930 db_info = mdb->extra_info;
931 if (db_info->status == MDB_STATUS_AUTO)
932 db_info->status = MDB_STATUS_DISABLED;
939 MPLIST_DO (p0, mdatabase__dir_list)
940 mplist_push (plist, MPLIST_KEY (p0), MPLIST_VAL (p0));
942 while (! MPLIST_TAIL_P (plist))
944 MDatabaseInfo *dir_info = mplist_pop (plist);
949 if (dir_info->status == MDB_STATUS_DISABLED)
951 if (! GEN_PATH (path, dir_info->filename, dir_info->len,
952 MDB_DIR, MDB_DIR_LEN))
954 if (! (fp = fopen (path, "r")))
956 pl = mplist__from_file (fp, NULL);
966 int with_wildcard = 0;
968 if (! MPLIST_PLIST_P (p))
970 for (i = 0, p1 = MPLIST_PLIST (p); i < 4 && MPLIST_SYMBOL_P (p1);
971 i++, p1 = MPLIST_NEXT (p1))
972 with_wildcard |= ((tags[i] = MPLIST_SYMBOL (p1)) == Masterisk);
974 || tags[0] == Masterisk
975 || ! MPLIST_MTEXT_P (p1))
978 tags[i] = with_wildcard ? Masterisk : Mnil;
979 mt = MPLIST_MTEXT (p1);
980 nbytes = mtext_nbytes (mt);
981 if (nbytes > PATH_MAX)
983 memcpy (path, MTEXT_DATA (mt), nbytes);
986 register_database (tags, load_database, path,
987 MDB_STATUS_AUTO_WILDCARD, NULL);
989 register_database (tags, load_database, path,
990 MDB_STATUS_AUTO, p1);
992 M17N_OBJECT_UNREF (pl);
994 M17N_OBJECT_UNREF (plist);
998 mdatabase__load_for_keys (MDatabase *mdb, MPlist *keys)
1000 int mdebug_flag = MDEBUG_DATABASE;
1001 MDatabaseInfo *db_info;
1007 if (mdb->loader != load_database
1008 || mdb->tag[0] == Mchar_table
1009 || mdb->tag[0] == Mcharset)
1010 MERROR (MERROR_DB, NULL);
1011 MDEBUG_PRINT1 (" [DB] <%s>.\n",
1012 gen_database_name (name, mdb->tag));
1013 db_info = mdb->extra_info;
1014 filename = get_database_file (db_info, NULL, NULL);
1015 if (! filename || ! (fp = fopen (filename, "r")))
1016 MERROR (MERROR_DB, NULL);
1017 plist = mplist__from_file (fp, keys);
1023 /* Check if the database MDB should be reloaded or not. It returns:
1025 1: The database has not been updated since it was loaded last
1028 0: The database has never been loaded or has been updated
1029 since it was loaded last time.
1031 -1: The database is not loadable at the moment. */
1034 mdatabase__check (MDatabase *mdb)
1036 MDatabaseInfo *db_info = (MDatabaseInfo *) mdb->extra_info;
1040 if (db_info->absolute_filename != db_info->filename
1041 || db_info->status == MDB_STATUS_AUTO)
1042 mdatabase__update ();
1044 if (! get_database_file (db_info, &buf, &result)
1047 if (db_info->time < buf.st_mtime)
1052 /* Search directories in mdatabase__dir_list for file FILENAME. If
1053 the file exist, return the absolute pathname. If FILENAME is
1054 already absolute, return a copy of it. */
1057 mdatabase__find_file (char *filename)
1061 MDatabaseInfo db_info;
1063 if (filename[0] == PATH_SEPARATOR)
1064 return (stat (filename, &buf) == 0 ? strdup (filename) : NULL);
1065 db_info.filename = filename;
1066 db_info.len = strlen (filename);
1068 db_info.absolute_filename = NULL;
1069 if (! get_database_file (&db_info, &buf, &result)
1072 return db_info.absolute_filename;
1076 mdatabase__file (MDatabase *mdb)
1078 MDatabaseInfo *db_info;
1080 if (mdb->loader != load_database)
1082 db_info = mdb->extra_info;
1083 return get_database_file (db_info, NULL, NULL);
1087 mdatabase__lock (MDatabase *mdb)
1089 MDatabaseInfo *db_info;
1095 if (mdb->loader != load_database)
1097 db_info = mdb->extra_info;
1098 if (db_info->lock_file)
1100 file = get_database_file (db_info, NULL, NULL);
1103 len = strlen (file);
1104 db_info->uniq_file = malloc (len + 35);
1105 if (! db_info->uniq_file)
1107 db_info->lock_file = malloc (len + 5);
1108 if (! db_info->lock_file)
1110 free (db_info->uniq_file);
1113 sprintf (db_info->uniq_file, "%s.%X.%X", db_info->absolute_filename,
1114 (unsigned) time (NULL), (unsigned) getpid ());
1115 sprintf (db_info->lock_file, "%s.LCK", db_info->absolute_filename);
1117 fp = fopen (db_info->uniq_file, "w");
1120 char *str = strdup (db_info->uniq_file);
1121 char *dir = dirname (str);
1123 if (stat (dir, &buf) == 0
1124 || mkdir (dir, 0777) < 0
1125 || ! (fp = fopen (db_info->uniq_file, "w")))
1127 free (db_info->uniq_file);
1128 free (db_info->lock_file);
1129 db_info->lock_file = NULL;
1136 if (link (db_info->uniq_file, db_info->lock_file) < 0
1137 && (stat (db_info->uniq_file, &buf) < 0
1138 || buf.st_nlink != 2))
1140 unlink (db_info->uniq_file);
1141 unlink (db_info->lock_file);
1142 free (db_info->uniq_file);
1143 free (db_info->lock_file);
1144 db_info->lock_file = NULL;
1151 mdatabase__save (MDatabase *mdb, MPlist *data)
1153 MDatabaseInfo *db_info;
1159 if (mdb->loader != load_database)
1161 db_info = mdb->extra_info;
1162 if (! db_info->lock_file)
1164 file = get_database_file (db_info, NULL, NULL);
1168 if (mplist__serialize (mt, data, 1) < 0)
1170 M17N_OBJECT_UNREF (mt);
1173 fp = fopen (db_info->uniq_file, "w");
1176 M17N_OBJECT_UNREF (mt);
1179 if (mt->format > MTEXT_FORMAT_UTF_8)
1180 mtext__adjust_format (mt, MTEXT_FORMAT_UTF_8);
1181 fwrite (MTEXT_DATA (mt), 1, mtext_nchars (mt), fp);
1183 M17N_OBJECT_UNREF (mt);
1184 if ((ret = rename (db_info->uniq_file, file)) < 0)
1185 unlink (db_info->uniq_file);
1186 free (db_info->uniq_file);
1187 db_info->uniq_file = NULL;
1192 mdatabase__unlock (MDatabase *mdb)
1194 MDatabaseInfo *db_info;
1196 if (mdb->loader != load_database)
1198 db_info = mdb->extra_info;
1199 if (! db_info->lock_file)
1201 unlink (db_info->lock_file);
1202 free (db_info->lock_file);
1203 db_info->lock_file = NULL;
1204 if (db_info->uniq_file)
1206 unlink (db_info->uniq_file);
1207 free (db_info->uniq_file);
1213 mdatabase__props (MDatabase *mdb)
1215 MDatabaseInfo *db_info;
1217 if (mdb->loader != load_database)
1219 db_info = mdb->extra_info;
1220 return db_info->properties;
1224 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
1229 /*** @addtogroup m17nCharset */
1233 @brief The symbol @c Mcharset.
1235 Any decoded M-text has a text property whose key is the predefined
1236 symbol @c Mcharset. The name of @c Mcharset is
1237 <tt>"charset"</tt>. */
1240 @brief ¥·¥ó¥Ü¥ë @c Mcharset.
1242 ¥Ç¥³¡¼¥É¤µ¤ì¤¿ M-text ¤Ï¡¢¥¡¼¤¬ @c Mcharset
1243 ¤Ç¤¢¤ë¤è¤¦¤Ê¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¡£
1244 ¥·¥ó¥Ü¥ë @c Mcharset ¤Ï <tt>"charset"</tt> ¤È¤¤¤¦Ì¾Á°¤ò»ý¤Ä¡£ */
1251 /*** @addtogroup m17nDatabase */
1256 @brief Directory for application specific data.
1258 If an application program wants to provide a data specific to the
1259 program or a data overriding what supplied by the m17n database,
1260 it must set this variable to a name of directory that contains the
1261 data files before it calls the macro M17N_INIT (). The directory
1262 may contain a file "mdb.dir" which contains a list of data
1263 definitions in the format described in @ref mdbDir "mdbDir(5)".
1265 The default value is NULL. */
1267 @brief ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¸ÇͤΥǡ¼¥¿Íѥǥ£¥ì¥¯¥È¥ê.
1269 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤¬¡¢¤½¤Î¥×¥í¥°¥é¥à¸ÇͤΥǡ¼¥¿¤ä m17n
1270 ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¾å½ñ¤¤¹¤ë¥Ç¡¼¥¿¤òÄ󶡤¹¤ë¾ì¹ç¤Ë¤Ï¡¢¥Þ¥¯¥í M17N_INIT ()
1271 ¤ò¸Æ¤ÖÁ°¤Ë¤³¤ÎÊÑ¿ô¤ò¥Ç¡¼¥¿¥Õ¥¡¥¤¥ë¤ò´Þ¤à¥Ç¥£¥ì¥¯¥È¥ê̾¤Ë¥»¥Ã¥È¤·¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤Ï
1272 "mdb.dir" ¥Õ¥¡¥¤¥ë¤ò¤ª¤¯¤³¤È¤¬¤Ç¤¤ë¡£¤½¤Î"mdb.dir"¥Õ¥¡¥¤¥ë¤Ë¤Ï¡¢
1273 @ref mdbDir "mdbDir(5)" ¤ÇÀâÌÀ¤µ¤ì¤Æ¤¤¤ë¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¥Ç¡¼¥¿ÄêµÁ¤Î¥ê¥¹¥È¤òµ½Ò¤¹¤ë¡£
1275 ¥Ç¥Õ¥©¥ë¥È¤ÎÃÍ¤Ï NULL ¤Ç¤¢¤ë¡£ */
1277 char *mdatabase_dir;
1281 @brief Look for a data in the database.
1283 The mdatabase_find () function searches the m17n database for a
1284 data who has tags $TAG0 through $TAG3, and returns a pointer to
1285 the data. If such a data is not found, it returns @c NULL. */
1288 @brief ¥Ç¡¼¥¿¥Ù¡¼¥¹Ãæ¤Î¥Ç¡¼¥¿¤òõ¤¹.
1290 ´Ø¿ô mdatabase_find () ¤Ï¡¢ m17n ¸À¸ì¾ðÊó¥Ù¡¼¥¹Ãæ¤Ç $TAG0 ¤«¤é
1291 $TAG3 ¤Þ¤Ç¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¤òõ¤·¡¢¤½¤ì¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£¤½¤Î¤è¤¦¤Ê¥Ç¡¼¥¿¤¬¤Ê¤±¤ì¤Ð
1294 @latexonly \IPAlabel{mdatabase_find} @endlatexonly */
1297 mdatabase_find (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
1301 mdatabase__update ();
1302 tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
1303 return find_database (tags);
1308 @brief Return a data list of the m17n database.
1310 The mdatabase_list () function searches the m17n database for data
1311 who have tags $TAG0 through $TAG3, and returns their list by a
1312 plist. The value #Mnil in $TAGn means a wild card that matches
1313 any tag. Each element of the plist has key #Mt and value a
1314 pointer to type #MDatabase. */
1316 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥Ç¡¼¥¿¥ê¥¹¥È¤òÊÖ¤¹.
1318 ´Ø¿ô mdatabase_list () ¤Ï m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹Ã椫¤é $TAG0 ¤«¤é$TAG3
1319 ¤Þ¤Ç¤Î¥¿¥°¤ò»ý¤Ä¥Ç¡¼¥¿¤òõ¤·¡¢¤½¤Î¥ê¥¹¥È¤òplist ¤È¤·¤ÆÊÖ¤¹¡£ $TAGn ¤¬ #Mnil
1320 ¤Ç¤¢¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢Ç¤°Õ¤Î¥¿¥°¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ï¥¤¥ë¥É¥«¡¼¥É¤È¤·¤Æ¼è¤ê°·¤ï¤ì¤ë¡£ÊÖ¤µ¤ì¤ë
1321 plist ¤Î³ÆÍ×ÁǤϥ¡¼ ¤È¤·¤Æ #Mt ¤ò¡¢ÃͤȤ·¤Æ #MDatabase ·¿¤Ø¤Î¥Ý¥¤¥ó¥¿¤ò»ý¤Ä¡£ */
1324 mdatabase_list (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
1326 MPlist *plist = mplist (), *pl = plist;
1327 MPlist *p, *p0, *p1, *p2, *p3;
1329 mdatabase__update ();
1331 MPLIST_DO (p, mdatabase__list)
1333 p0 = MPLIST_PLIST (p);
1334 /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
1335 if (MPLIST_SYMBOL (p0) == Masterisk
1336 || (tag0 != Mnil && MPLIST_SYMBOL (p0) != tag0))
1338 MPLIST_DO (p0, MPLIST_NEXT (p0))
1340 p1 = MPLIST_PLIST (p0);
1341 if (MPLIST_SYMBOL (p1) == Masterisk)
1343 if (expand_wildcard_database (p1))
1345 M17N_OBJECT_UNREF (plist);
1346 return mdatabase_list (tag0, tag1, tag2, tag3);
1350 if (tag1 != Mnil && MPLIST_SYMBOL (p1) != tag1)
1352 MPLIST_DO (p1, MPLIST_NEXT (p1))
1354 p2 = MPLIST_PLIST (p1);
1355 if (MPLIST_SYMBOL (p2) == Masterisk)
1357 if (expand_wildcard_database (p2))
1359 M17N_OBJECT_UNREF (plist);
1360 return mdatabase_list (tag0, tag1, tag2, tag3);
1364 if (tag2 != Mnil && MPLIST_SYMBOL (p2) != tag2)
1366 MPLIST_DO (p2, MPLIST_NEXT (p2))
1368 p3 = MPLIST_PLIST (p2);
1369 if (MPLIST_SYMBOL (p3) == Masterisk)
1371 if (expand_wildcard_database (p3))
1373 M17N_OBJECT_UNREF (plist);
1374 return mdatabase_list (tag0, tag1, tag2, tag3);
1378 if (tag3 != Mnil && MPLIST_SYMBOL (p3) != tag3)
1380 p3 = MPLIST_NEXT (p3);
1381 pl = mplist_add (pl, Mt, MPLIST_VAL (p3));
1386 if (MPLIST_TAIL_P (plist))
1387 M17N_OBJECT_UNREF (plist);
1393 @brief Define a data of the m17n database.
1395 The mdatabase_define () function defines a data that has tags
1396 $TAG0 through $TAG3 and additional information $EXTRA_INFO.
1398 $LOADER is a pointer to a function that loads the data from the
1399 database. This function is called from the mdatabase_load ()
1400 function with the two arguments $TAGS and $EXTRA_INFO. Here,
1401 $TAGS is the array of $TAG0 through $TAG3.
1403 If $LOADER is @c NULL, the default loader of the m17n library is
1404 used. In this case, $EXTRA_INFO must be a string specifying a
1405 filename that contains the data.
1408 If the operation was successful, mdatabase_define () returns a
1409 pointer to the defined data, which can be used as an argument to
1410 mdatabase_load (). Otherwise, it returns @c NULL. */
1413 @brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥Ç¡¼¥¿¤òÄêµÁ¤¹¤ë.
1415 ´Ø¿ô mdatabase_define () ¤Ï $TAG0 ¤«¤é $TAG3 ¤Þ¤Ç¤Î¥¿¥°¤ª¤è¤ÓÉղþðÊó
1416 $EXTRA_INFO ¤ò»ý¤Ä¥Ç¡¼¥¿¤òÄêµÁ¤¹¤ë¡£
1418 $LOADER ¤Ï¤½¤Î¥Ç¡¼¥¿¤Î¥í¡¼¥É¤ËÍѤ¤¤é¤ì¤ë´Ø¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£¤³¤Î´Ø¿ô¤Ï
1419 mdatabase_load () ¤«¤é $TAGS ¤È $EXTRA_INFO ¤È¤¤¤¦Æó¤Ä¤Î°ú¿ôÉÕ¤¤Ç¸Æ¤Ó½Ð¤µ¤ì¤ë¡£¤³¤³¤Ç
1420 $TAGS ¤Ï $TAG0 ¤«¤é $TAG3 ¤Þ¤Ç¤ÎÇÛÎó¤Ç¤¢¤ë¡£
1422 ¤â¤· $LOADER ¤¬ @c NULL ¤Ê¤é¡¢m17n ¥é¥¤¥Ö¥é¥êɸ½à¤Î¥í¡¼¥À¤¬»È¤ï¤ì¤ë¡£¤³¤Î¾ì¹ç¤Ë¤Ï
1423 $EXTRA_INFO ¤Ï¥Ç¡¼¥¿¤ò´Þ¤à¥Õ¥¡¥¤¥ë̾¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
1426 ½èÍý¤ËÀ®¸ù¤¹¤ì¤Ð mdatabase_define ()
1427 ¤ÏÄêµÁ¤µ¤ì¤¿¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£¤³¤Î¥Ý¥¤¥ó¥¿¤Ï´Ø¿ô mdatabase_load ()
1428 ¤Î°ú¿ô¤È¤·¤ÆÍѤ¤¤ë¤³¤È¤¬¤Ç¤¤ë¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð @c NULL ¤òÊÖ¤¹¡£
1430 @latexonly \IPAlabel{mdatabase_define} @endlatexonly */
1434 mdatabase_load (), mdatabase_define () */
1437 mdatabase_define (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3,
1438 void *(*loader) (MSymbol *, void *),
1444 tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
1446 loader = load_database;
1447 mdb = register_database (tags, loader, extra_info, MDB_STATUS_EXPLICIT, NULL);
1453 @brief Load a data from the database.
1455 The mdatabase_load () function loads a data specified in $MDB and
1456 returns the contents. The type of contents depends on the type of
1459 If the data is of the @e plist @e type, this function returns a
1460 pointer to @e plist.
1462 If the database is of the @e chartable @e type, it returns a
1463 chartable. The default value of the chartable is set according to
1464 the second tag of the data as below:
1466 @li If the tag is #Msymbol, the default value is #Mnil.
1467 @li If the tag is #Minteger, the default value is -1.
1468 @li Otherwise, the default value is @c NULL.
1470 If the data is of the @e charset @e type, it returns a plist of length 2
1471 (keys are both #Mt). The value of the first element is an array
1472 of integers that maps code points to the corresponding character
1473 codes. The value of the second element is a chartable of integers
1474 that does the reverse mapping. The charset must be defined in
1479 @brief ¥Ç¡¼¥¿¥Ù¡¼¥¹¤«¤é¥Ç¡¼¥¿¤ò¥í¡¼¥É¤¹¤ë.
1481 ´Ø¿ô mdatabase_load () ¤Ï $MDB
1482 ¤¬»Ø¤¹¥Ç¡¼¥¿¤ò¥í¡¼¥É¤·¡¢¤½¤ÎÃæ¿È¤òÊÖ¤¹¡£ÊÖ¤µ¤ì¤ë¤â¤Î¤Ï¥Ç¡¼¥¿¤Î¥¿¥¤¥×¤Ë¤è¤Ã¤Æ°Û¤Ê¤ë¡£
1484 ¥Ç¡¼¥¿¤¬ @e plist¥¿¥¤¥× ¤Ê¤é¤Ð¡¢ @e plist ¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
1486 ¥Ç¡¼¥¿¤¬ @e chartable¥¿¥¤¥× ¤Ê¤é¤Ðʸ»ú¥Æ¡¼¥Ö¥ë¤òÊÖ¤¹¡£
1487 ʸ»ú¥Æ¡¼¥Ö¥ë¤Î¥Ç¥Õ¥©¥ë¥ÈÃͤϡ¢¥Ç¡¼¥¿¤ÎÂè2¥¿¥°¤Ë¤è¤Ã¤Æ°Ê²¼¤Î¤è¤¦¤Ë·è¤Þ¤ë¡£
1489 @li ¥¿¥°¤¬ #Msymbol ¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï #Mnil
1490 @li ¥¿¥°¤¬ #Minteger ¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï -1
1491 @li ¤½¤ì°Ê³°¤Ê¤é¡¢¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï @c NULL
1493 ¥Ç¡¼¥¿¤¬ @e charset¥¿¥¤¥× ¤Ê¤é¤ÐŤµ 2 ¤Î plist ¤òÊÖ¤¹¡Ê¥¡¼¤Ï¶¦¤Ë#Mt ¡Ë¡£
1494 ºÇ½é¤ÎÍ×ÁǤÎÃͤϥ³¡¼¥É¥Ý¥¤¥ó¥È¤òÂбþ¤¹¤ëʸ»ú¥³¡¼¥É¤Ë¥Þ¥Ã¥×¤¹¤ëÀ°¿ô¤ÎÇÛÎó¤Ç¤¢¤ë¡£
1495 £²ÈÖÌܤÎÍ×ÁǤÎÃͤϵդΥޥåפò¤¹¤ëʸ»ú¥Æ¡¼¥Ö¥ë¤Ç¤¢¤ë¡£
1496 ¤³¤Îʸ»ú¥»¥Ã¥È¤Ïͽ¤áÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
1498 @latexonly \IPAlabel{mdatabase_load} @endlatexonly
1503 mdatabase_load (), mdatabase_define () */
1506 mdatabase_load (MDatabase *mdb)
1508 return (*mdb->loader) (mdb->tag, mdb->extra_info);
1513 @brief Get tags of a data.
1515 The mdatabase_tag () function returns an array of tags (symbols)
1516 that identify the data in $MDB. The length of the array is
1520 @brief ¥Ç¡¼¥¿¤Î¥¿¥°¤òÆÀ¤ë.
1522 ´Ø¿ô mdatabase_tag () ¤Ï¡¢¥Ç¡¼¥¿ $MDB ¤Î¥¿¥°¡Ê¥·¥ó¥Ü¥ë¡Ë¤ÎÇÛÎó¤òÊÖ¤¹¡£ÇÛÎó¤ÎŤµ¤Ï
1525 @latexonly \IPAlabel{mdatabase_tag} @endlatexonly */
1528 mdatabase_tag (MDatabase *mdb)