/* database.c -- database module.
- Copyright (C) 2003, 2004
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H15PRO112
You should have received a copy of the GNU Lesser General Public
License along with the m17n library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
02111-1307, USA. */
/***en
@addtogroup m17nDatabase
@brief The m17n database and API for it.
- The m17n library dynamically acquires various kinds of information
- in need from data in the <i> m17n database</i>. Application
+ The m17n library acquires various kinds of information
+ from data in the <i> m17n database</i> on demand. Application
programs can also add/load their original data to/from the m17n
- database. The m17n database contains multiple heterogeneous data,
- and each data is identified by four tags; TAG0, TAG1, TAG2, TAG3.
- Each tag must be a symbol.
+ database by setting the variable #mdatabase_dir to an
+ application-specific directory and storing data in it. Users can
+ overwrite those data by storing preferable data in the directory
+ specified by the environment variable "M17NDIR", or if it is not
+ set, in the directory "~/.m17n.d".
+
+ The m17n database contains multiple heterogeneous data, and each
+ data is identified by four tags; TAG0, TAG1, TAG2, TAG3. Each tag
+ must be a symbol.
TAG0 specifies the type of data stored in the database as below.
@brief m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤È¤½¤ì¤Ë´Ø¤¹¤ë API.
m17n ¥é¥¤¥Ö¥é¥ê¤ÏɬÍפ˱þ¤¸¤ÆưŪ¤Ë @e m17n @e ¥Ç¡¼¥¿¥Ù¡¼¥¹
- ¤«¤é¾ðÊó¤ò¼èÆÀ¤¹¤ë¡£¤Þ¤¿¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤âÆȼ«¤Î¥Ç¡¼¥¿¤ò
- m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲä·¡¢¤½¤ì¤òưŪ¤Ë¼èÆÀ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£m17n
+ ¤«¤é¾ðÊó¤ò¼èÆÀ¤¹¤ë¡£¤Þ¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤â¡¢Æȼ«¤Î¥Ç¡¼¥¿¤ò
+ m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲä·¡¢¤½¤ì¤òưŪ¤Ë¼èÆÀ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
+ ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥à¤¬Æȼ«¤Î¥Ç¡¼¥¿¤òÄɲᦼèÆÀ¤¹¤ë¤Ë¤Ï¡¢ÊÑ¿ô
+ #mdatabase_dir ¤Ë¤½¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¸ÇͤΥǥ£¥ì¥¯¥È¥ê¤ò¥»¥Ã¥È¤·¡¢
+ ¤½¤ÎÃæ¤Ë¥Ç¡¼¥¿¤ò³ÊǼ¤¹¤ë¡£¥æ¡¼¥¶¤¬¤½¤Î¥Ç¡¼¥¿¤ò¥ª¡¼¥Ð¡¼¥é¥¤¥È¤·¤¿¤¤
+ ¤È¤¤Ï¡¢´Ä¶ÊÑ¿ô "M17NDIR" ¤Ç»ØÄꤵ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¡Ê»ØÄꤵ¤ì¤Æ¤¤¤Ê
+ ¤¤¤È¤¤Ï "~/.m17n.d" ¤È¤¤¤¦¥Ç¥£¥ì¥¯¥È¥ê¡Ë¤ËÊ̤Υǡ¼¥¿¤òÃÖ¤¯¡£
+
+ m17n
¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤ÏÊ£¿ô¤Î¿Íͤʥǡ¼¥¿¤¬´Þ¤Þ¤ì¤Æ¤ª¤ê¡¢³Æ¥Ç¡¼¥¿¤Ï
TAG0, TAG1, TAG2, TAG3¡Ê¤¹¤Ù¤Æ¥·¥ó¥Ü¥ë¡Ë¤Î£´¤Ä¤Î¥¿¥°¤Ë¤è¤Ã¤Æ¼±Ê̤µ¤ì¤ë¡£
#include <unistd.h>
#include <limits.h>
#include <glob.h>
+#include <time.h>
+#include <libgen.h>
-#include "m17n.h"
+#include "m17n-core.h"
#include "m17n-misc.h"
#include "internal.h"
#include "mtext.h"
#include "character.h"
-#include "charset.h"
#include "database.h"
-#include "coding.h"
#include "plist.h"
/** The file containing a list of databases. */
#define MDB_DIR "mdb.dir"
-#define MDB_DIR_LEN 8
+/** Length of MDB_DIR. */
+#define MDB_DIR_LEN 7
#define MAX_TIME(TIME1, TIME2) ((TIME1) >= (TIME2) ? (TIME1) : (TIME2))
+#define GEN_PATH(path, dir, dir_len, file, file_len) \
+ (dir_len + file_len > PATH_MAX ? 0 \
+ : (memcpy (path, dir, dir_len), \
+ memcpy (path + dir_len, file, file_len), \
+ path[dir_len + file_len] = '\0', 1))
+
static MSymbol Masterisk;
+static MSymbol Mversion;
/** Structure for a data in the m17n database. */
void *extra_info;
};
-typedef struct
-{
- char *filename;
- time_t time;
-} MDatabaseInfo;
-
-/** List of all data. */
-struct MDatabaseList
-{
- int size, inc, used;
- MDatabase *mdbs;
-};
-
-static struct MDatabaseList mdb_list;
-
+static MPlist *mdatabase__list;
static int
read_number (char *buf, int *i)
/* VAL is an M-text. */
MText *mt;
if (c == '"')
- mt = mconv_decode_buffer (Mcoding_utf_8,
- (unsigned char *) (buf + i),
- len - i - 1);
+ mt = mtext__from_data (buf + i, len - i - 1, MTEXT_FORMAT_UTF_8, 1);
else
{
mt = mtext ();
}
-/** Load a data of type @c charset from the file FD. */
-
-static void *
-load_charset (FILE *fp, MSymbol charset_name)
-{
- MCharset *charset = MCHARSET (charset_name);
- int *decoder;
- MCharTable *encoder;
- int size;
- int i, c;
- int found = 0;
- MPlist *plist;
-
- if (! charset)
- MERROR (MERROR_DB, NULL);
- size = (charset->code_range[15]
- - (charset->min_code - charset->code_range_min_code));
- MTABLE_MALLOC (decoder, size, MERROR_DB);
- for (i = 0; i < size; i++)
- decoder[i] = -1;
- encoder = mchartable (Minteger, (void *) MCHAR_INVALID_CODE);
-
- while ((c = getc (fp)) != EOF)
- {
- unsigned code1, code2, c1, c2;
- int idx1, idx2;
- char buf[256];
-
- ungetc (c, fp);
- fgets (buf, 256, fp);
- if (c != '#')
- {
- if (sscanf (buf, "0x%x-0x%x 0x%x", &code1, &code2, &c1) == 3)
- {
- idx1 = CODE_POINT_TO_INDEX (charset, code1);
- if (idx1 >= size)
- continue;
- idx2 = CODE_POINT_TO_INDEX (charset, code2);
- if (idx2 >= size)
- idx2 = size - 1;
- c2 = c1 + (idx2 - idx1);
- }
- else if (sscanf (buf, "0x%x 0x%x", &code1, &c1) == 2)
- {
- idx1 = idx2 = CODE_POINT_TO_INDEX (charset, code1);
- if (idx1 >= size)
- continue;
- c2 = c1;
- }
- else
- continue;
- if (idx1 >= 0 && idx2 >= 0)
- {
- decoder[idx1] = c1;
- mchartable_set (encoder, c1, (void *) code1);
- for (idx1++, c1++; idx1 <= idx2; idx1++, c1++)
- {
- code1 = INDEX_TO_CODE_POINT (charset, idx1);
- decoder[idx1] = c1;
- mchartable_set (encoder, c1, (void *) code1);
- }
- found++;
- }
- }
- }
-
- if (! found)
- {
- free (decoder);
- M17N_OBJECT_UNREF (encoder);
- return NULL;
- }
- plist = mplist ();
- mplist_add (plist, Mt, decoder);
- mplist_add (plist, Mt, encoder);
- return plist;
-}
-
static char *
gen_database_name (char *buf, MSymbol *tags)
{
strcpy (buf, msymbol_name (tags[0]));
for (i = 1; i < 4; i++)
{
- strcat (buf, ", ");
+ strcat (buf, ",");
strcat (buf, msymbol_name (tags[i]));
}
return buf;
}
-static FILE *
-get_database_stream (MDatabaseInfo *db_info)
-{
- FILE *fp = NULL;
- struct stat buf;
+/* Return the absolute file name for DB_INFO->filename or NULL if no
+ absolute file name was found. If BUF is non-NULL, store the result
+ of `stat' call in it. In that case, set *RESULT to the return
+ value of `stat'. */
- if (db_info->filename[0] == '/')
+char *
+get_database_file (MDatabaseInfo *db_info, struct stat *buf, int *result)
+{
+ if (db_info->absolute_filename)
{
- if (stat (db_info->filename, &buf) == 0
- && (fp = fopen (db_info->filename, "r")))
- db_info->time = MAX_TIME (buf.st_mtime, buf.st_ctime);
+ if (buf)
+ *result = stat (db_info->absolute_filename, buf);
}
else
{
+ struct stat stat_buf;
+ struct stat *statbuf = buf ? buf : &stat_buf;
+ int res;
MPlist *plist;
- char *path;
- int filelen = strlen (db_info->filename);
- USE_SAFE_ALLOCA;
+ char path[PATH_MAX + 1];
MPLIST_DO (plist, mdatabase__dir_list)
{
MDatabaseInfo *dir_info = MPLIST_VAL (plist);
- int require = strlen (dir_info->filename) + filelen + 1;
- SAFE_ALLOCA (path, require);
- strcpy (path, dir_info->filename);
- strcat (path, db_info->filename);
- if (stat (path, &buf) == 0
- && (fp = fopen (path, "r")))
+ if (dir_info->status != MDB_STATUS_DISABLED
+ && GEN_PATH (path, dir_info->filename, dir_info->len,
+ db_info->filename, db_info->len)
+ && (res = stat (path, statbuf)) == 0)
{
- free (db_info->filename);
- db_info->filename = strdup (path);
- db_info->time = MAX_TIME (buf.st_mtime, buf.st_ctime);
+ db_info->absolute_filename = strdup (path);
+ if (result)
+ *result = res;
break;
}
}
- SAFE_FREE (path);
}
- return fp;
+
+ return db_info->absolute_filename;
}
static void *
load_database (MSymbol *tags, void *extra_info)
{
- FILE *fp = get_database_stream ((MDatabaseInfo *) extra_info);
+ MDatabaseInfo *db_info = extra_info;
void *value;
+ char *filename = get_database_file (db_info, NULL, NULL);
+ FILE *fp;
+ int mdebug_flag = MDEBUG_DATABASE;
+ char buf[256];
- if (! fp)
- MERROR (MERROR_DB, NULL);
+ MDEBUG_PRINT1 (" [DB] <%s>", gen_database_name (buf, tags));
+ if (! filename || ! (fp = fopen (filename, "r")))
+ {
+ if (filename)
+ MDEBUG_PRINT1 (" open fail: %s\n", filename);
+ else
+ MDEBUG_PRINT1 (" not found: %s\n", db_info->filename);
+ MERROR (MERROR_DB, NULL);
+ }
+
+ MDEBUG_PRINT1 (" from %s\n", filename);
if (tags[0] == Mchar_table)
value = load_chartable (fp, tags[1]);
else if (tags[0] == Mcharset)
- value = load_charset (fp, tags[1]);
+ {
+ if (! mdatabase__load_charset_func)
+ MERROR (MERROR_DB, NULL);
+ value = (*mdatabase__load_charset_func) (fp, tags[1]);
+ }
else
value = mplist__from_file (fp, NULL);
fclose (fp);
if (! value)
MERROR (MERROR_DB, NULL);
+ db_info->time = time (NULL);
return value;
}
-/** If DIRNAME is a readable directory, allocate MDatabaseInfo and
- copy DIRNAME to a newly allocated memory and return it. If
- DIRNAME does not end with a slash, append a slash to the new memory. */
+/** Return a newly allocated MDatabaseInfo for DIRNAME. */
static MDatabaseInfo *
get_dir_info (char *dirname)
{
- struct stat buf;
- int len;
MDatabaseInfo *dir_info;
- if (! dirname
- || stat (dirname, &buf) < 0
- || ! (buf.st_mode & S_IFDIR))
- return NULL;
-
- MSTRUCT_MALLOC (dir_info, MERROR_DB);
- len = strlen (dirname);
- MTABLE_MALLOC (dir_info->filename, len + 2, MERROR_DB);
- memcpy (dir_info->filename, dirname, len + 1);
- if (dir_info->filename[len - 1] != '/')
+ MSTRUCT_CALLOC (dir_info, MERROR_DB);
+ if (dirname)
{
- dir_info->filename[len] = '/';
- dir_info->filename[len + 1] = '\0';
+ int len = strlen (dirname);
+
+ if (len + MDB_DIR_LEN < PATH_MAX)
+ {
+ MTABLE_MALLOC (dir_info->filename, len + 2, MERROR_DB);
+ memcpy (dir_info->filename, dirname, len + 1);
+ /* Append PATH_SEPARATOR if DIRNAME doesn't end with it. */
+ if (dir_info->filename[len - 1] != PATH_SEPARATOR)
+ {
+ dir_info->filename[len] = PATH_SEPARATOR;
+ dir_info->filename[++len] = '\0';
+ }
+ dir_info->len = len;
+ dir_info->status = MDB_STATUS_OUTDATED;
+ }
+ else
+ dir_info->status = MDB_STATUS_DISABLED;
}
- /* Set this to zero so that the first call of update_database_list
- surely checks this directory. */
- dir_info->time = 0;
+ else
+ dir_info->status = MDB_STATUS_DISABLED;
return dir_info;
}
+static void register_databases_in_files (MSymbol tags[4],
+ char *filename, int len);
+
static MDatabase *
-find_database (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
+find_database (MSymbol tags[4])
{
+ MPlist *plist;
int i;
-
- for (i = 0; i < mdb_list.used; i++)
+ MDatabase *mdb;
+
+ if (! mdatabase__list)
+ return NULL;
+ for (i = 0, plist = mdatabase__list; i < 4; i++)
{
- MDatabase *mdb = mdb_list.mdbs + i;
+ MPlist *pl = mplist__assq (plist, tags[i]);
+ MPlist *p;
- if (tag0 == mdb->tag[0]
- && tag1 == mdb->tag[1]
- && tag2 == mdb->tag[2]
- && tag3 == mdb->tag[3])
- return mdb;
+ if ((p = mplist__assq (plist, Masterisk)))
+ {
+ MDatabaseInfo *db_info;
+ int j;
+
+ p = MPLIST_PLIST (p);
+ for (j = i + 1; j < 4; j++)
+ p = MPLIST_PLIST (MPLIST_NEXT (p));
+ mdb = MPLIST_VAL (MPLIST_NEXT (p));
+ db_info = mdb->extra_info;
+ if (db_info->status != MDB_STATUS_DISABLED)
+ {
+ register_databases_in_files (mdb->tag,
+ db_info->filename, db_info->len);
+ db_info->status = MDB_STATUS_DISABLED;
+ return find_database (tags);
+ }
+ }
+ if (! pl)
+ return NULL;
+ plist = MPLIST_PLIST (pl);
+ plist = MPLIST_NEXT (plist);
}
- return NULL;
+ mdb = MPLIST_VAL (plist);
+ return mdb;
}
static void
-update_database_list ()
+free_db_info (MDatabaseInfo *db_info)
+{
+ free (db_info->filename);
+ if (db_info->absolute_filename
+ && db_info->filename != db_info->absolute_filename)
+ free (db_info->absolute_filename);
+ M17N_OBJECT_UNREF (db_info->properties);
+ free (db_info);
+}
+
+static int
+check_version (MText *version)
+{
+ char *verstr = (char *) MTEXT_DATA (version);
+ char *endp = verstr + mtext_nbytes (version);
+ int ver[3];
+ int i;
+
+ ver[0] = ver[1] = ver[2] = 0;
+ for (i = 0; verstr < endp; verstr++)
+ {
+ if (*verstr == '.')
+ {
+ i++;
+ if (i == 3)
+ break;
+ continue;
+ }
+ if (! isdigit (*verstr))
+ break;
+ ver[i] = ver[i] * 10 + (*verstr - '0');
+ }
+ return (ver[0] < M17NLIB_MAJOR_VERSION
+ || (ver[0] == M17NLIB_MAJOR_VERSION
+ && (ver[1] < M17NLIB_MINOR_VERSION
+ || (ver[1] == M17NLIB_MINOR_VERSION
+ && ver[2] <= M17NLIB_PATCH_LEVEL))));
+}
+
+static MDatabase *
+register_database (MSymbol tags[4],
+ void *(*loader) (MSymbol *, void *),
+ void *extra_info, enum MDatabaseStatus status,
+ MPlist *properties)
{
+ MDatabase *mdb;
+ MDatabaseInfo *db_info;
+ int i;
MPlist *plist;
- char *path;
- USE_SAFE_ALLOCA;
- /* Usually this avoids path to be reallocated. */
- SAFE_ALLOCA (path, 256);
+ if (properties)
+ {
+ MPLIST_DO (plist, properties)
+ if (MPLIST_PLIST_P (plist))
+ {
+ MPlist *p = MPLIST_PLIST (plist);
+
+ if (MPLIST_SYMBOL_P (p)
+ && MPLIST_SYMBOL (p) == Mversion
+ && MPLIST_MTEXT_P (MPLIST_NEXT (p)))
+ {
+ if (check_version (MPLIST_MTEXT (MPLIST_NEXT (p))))
+ break;
+ return NULL;
+ }
+ }
+ }
+
+ for (i = 0, plist = mdatabase__list; i < 4; i++)
+ {
+ MPlist *pl = mplist__assq (plist, tags[i]);
+
+ if (pl)
+ pl = MPLIST_PLIST (pl);
+ else
+ {
+ pl = mplist ();
+ mplist_add (pl, Msymbol, tags[i]);
+ mplist_push (plist, Mplist, pl);
+ M17N_OBJECT_UNREF (pl);
+ }
+ plist = MPLIST_NEXT (pl);
+ }
+
+ if (MPLIST_TAIL_P (plist))
+ {
+ MSTRUCT_MALLOC (mdb, MERROR_DB);
+ for (i = 0; i < 4; i++)
+ mdb->tag[i] = tags[i];
+ mdb->loader = loader;
+ if (loader == load_database)
+ {
+ MSTRUCT_CALLOC (db_info, MERROR_DB);
+ mdb->extra_info = db_info;
+ }
+ else
+ {
+ db_info = NULL;
+ mdb->extra_info = extra_info;
+ }
+ mplist_push (plist, Mt, mdb);
+ }
+ else
+ {
+ mdb = MPLIST_VAL (plist);
+ if (loader == load_database)
+ db_info = mdb->extra_info;
+ else
+ db_info = NULL;
+ }
+
+ if (db_info)
+ {
+ db_info->status = status;
+ if (! db_info->filename
+ || strcmp (db_info->filename, (char *) extra_info) != 0)
+ {
+ if (db_info->filename)
+ free (db_info->filename);
+ if (db_info->absolute_filename
+ && db_info->filename != db_info->absolute_filename)
+ free (db_info->absolute_filename);
+ db_info->filename = strdup ((char *) extra_info);
+ db_info->len = strlen ((char *) extra_info);
+ db_info->time = 0;
+ }
+ if (db_info->filename[0] == PATH_SEPARATOR)
+ db_info->absolute_filename = db_info->filename;
+ else
+ db_info->absolute_filename = NULL;
+ M17N_OBJECT_UNREF (db_info->properties);
+ if (properties)
+ {
+ db_info->properties = properties;
+ M17N_OBJECT_REF (properties);
+ }
+ }
+
+ if (mdb->tag[0] == Mchar_table
+ && mdb->tag[2] != Mnil
+ && (mdb->tag[1] == Mstring || mdb->tag[1] == Mtext
+ || mdb->tag[1] == Msymbol || mdb->tag[1] == Minteger
+ || mdb->tag[1] == Mplist))
+ mchar__define_prop (mdb->tag[2], mdb->tag[1], mdb);
+ return mdb;
+}
+
+static void
+register_databases_in_files (MSymbol tags[4], char *filename, int len)
+{
+ int i, j;
+ MPlist *load_key = mplist ();
+ FILE *fp;
+ MPlist *plist, *pl;
MPLIST_DO (plist, mdatabase__dir_list)
{
- MDatabaseInfo *dir_info = MPLIST_VAL (plist);
- struct stat statbuf;
- MPlist *pl, *p;
- int i, j, len;
- FILE *fp;
+ glob_t globbuf;
+ int headlen;
- if (stat (dir_info->filename, &statbuf) < 0)
- continue;
- if (dir_info->time >= statbuf.st_ctime
- && dir_info->time >= statbuf.st_mtime)
- continue;
- dir_info->time = MAX_TIME (statbuf.st_ctime, statbuf.st_mtime);
- len = strlen (dir_info->filename);
-#ifdef PATH_MAX
- if (len + MDB_DIR_LEN >= PATH_MAX)
- continue;
-#endif /* PATH_MAX */
- SAFE_ALLOCA (path, len + MDB_DIR_LEN + 1);
- memcpy (path, dir_info->filename, len);
- memcpy (path + len, MDB_DIR, MDB_DIR_LEN);
- path[len + MDB_DIR_LEN] = '\0';
- if (! (fp = fopen (path, "r")))
- continue;
- pl = mplist__from_file (fp, NULL);
- fclose (fp);
- if (! pl)
- continue;
- MPLIST_DO (p, pl)
+ if (filename[0] == PATH_SEPARATOR)
{
- MDatabase mdb;
- MPlist *p1;
- MText *mt;
- int nbytes;
- int with_wildcard = 0;
+ if (glob (filename, GLOB_NOSORT, NULL, &globbuf))
+ break;
+ headlen = 0;
+ }
+ else
+ {
+ MDatabaseInfo *d_info = MPLIST_VAL (plist);
+ char path[PATH_MAX + 1];
- if (! MPLIST_PLIST_P (p))
+ if (d_info->status == MDB_STATUS_DISABLED)
continue;
- p1 = MPLIST_PLIST (p);
- if (! MPLIST_SYMBOL_P (p1))
- continue;
- for (i = 0, p1 = MPLIST_PLIST (p);
- i < 4 && MPLIST_KEY (p1) == Msymbol;
- i++, p1 = MPLIST_NEXT (p1))
- with_wildcard |= ((mdb.tag[i] = MPLIST_SYMBOL (p1)) == Masterisk);
- if (i == 0
- || mdb.tag[0] == Masterisk
- || ! MPLIST_MTEXT_P (p1))
+ if (! GEN_PATH (path, d_info->filename, d_info->len, filename, len))
continue;
- for (; i < 4; i++)
- mdb.tag[i] = Mnil;
- mdb.loader = load_database;
- mt = MPLIST_MTEXT (p1);
- if (mt->format >= MTEXT_FORMAT_UTF_16LE)
- mtext__adjust_format (mt, MTEXT_FORMAT_UTF_8);
- nbytes = mtext_nbytes (mt);
-#ifdef PATH_MAX
- if (nbytes > PATH_MAX)
+ if (glob (path, GLOB_NOSORT, NULL, &globbuf))
continue;
-#endif /* PATH_MAX */
- if (with_wildcard
- && mdb.tag[0] != Mchar_table
- && mdb.tag[0] != Mcharset)
- {
- glob_t globbuf;
- MPlist *load_key;
-
- SAFE_ALLOCA (path, len + nbytes + 1);
- memcpy (path, dir_info->filename, len);
- memcpy (path + len, mt->data, nbytes);
- path[len + nbytes] = '\0';
+ headlen = d_info->len;
+ }
- if (glob (path, GLOB_NOSORT | GLOB_NOCHECK, NULL, &globbuf) != 0)
- continue;
- load_key = mplist ();
- for (i = 0; i < globbuf.gl_pathc; i++)
- {
- if (! (fp = fopen (globbuf.gl_pathv[i], "r")))
- continue;
- p1 = mplist__from_file (fp, load_key);
- fclose (fp);
- if (! p1)
- continue;
- if (MPLIST_PLIST_P (p1))
- {
- MPlist *p0;
- MDatabase mdb2;
-
- for (j = 0, p0 = MPLIST_PLIST (p1);
- j < 4 && MPLIST_SYMBOL_P (p0);
- j++, p0 = MPLIST_NEXT (p0))
- mdb2.tag[j] = MPLIST_SYMBOL (p0);
- for (; j < 4; j++)
- mdb2.tag[j] = Mnil;
- for (j = 0; j < 4; j++)
- if (mdb.tag[j] == Masterisk
- ? mdb2.tag[j] == Mnil
- : (mdb.tag[j] != Mnil && mdb.tag[j] != mdb2.tag[j]))
- break;
- if (j == 4
- && ! find_database (mdb2.tag[0], mdb2.tag[1],
- mdb2.tag[2], mdb2.tag[3]))
- {
- mdb2.loader = load_database;
- mdb2.extra_info = calloc (1, sizeof (MDatabaseInfo));
- if (! mdb2.extra_info)
- MEMORY_FULL (MERROR_DB);
- ((MDatabaseInfo*) mdb2.extra_info)->filename
- = strdup (globbuf.gl_pathv[i]);
- MLIST_APPEND1 (&mdb_list, mdbs, mdb2, MERROR_DB);
- if (mdb2.tag[0] == Mchar_table
- && mdb2.tag[2] != Mnil
- && (mdb2.tag[1] == Mstring
- || mdb2.tag[1] == Mtext
- || mdb2.tag[1] == Msymbol
- || mdb2.tag[1] == Minteger
- || mdb2.tag[1] == Mplist))
- mchar__define_prop (mdb2.tag[2], mdb2.tag[1],
- (mdb_list.mdbs
- + mdb_list.used - 1));
- }
- }
- M17N_OBJECT_UNREF (p1);
- }
- M17N_OBJECT_UNREF (load_key);
- globfree (&globbuf);
- }
- else
+ for (i = 0; i < globbuf.gl_pathc; i++)
+ {
+ if (! (fp = fopen (globbuf.gl_pathv[i], "r")))
+ continue;
+ pl = mplist__from_file (fp, load_key);
+ fclose (fp);
+ if (! pl)
+ continue;
+ if (MPLIST_PLIST_P (pl))
{
- if (find_database (mdb.tag[0], mdb.tag[1],
- mdb.tag[2], mdb.tag[3]))
- continue;
- SAFE_ALLOCA (path, nbytes + 1);
- memcpy (path, mt->data, nbytes);
- path[nbytes] = '\0';
- mdb.extra_info = calloc (1, sizeof (MDatabaseInfo));
- if (! mdb.extra_info)
- MEMORY_FULL (MERROR_DB);
- ((MDatabaseInfo*) mdb.extra_info)->filename = strdup (path);
- MLIST_APPEND1 (&mdb_list, mdbs, mdb, MERROR_DB);
- if (mdb.tag[0] == Mchar_table
- && mdb.tag[2] != Mnil
- && (mdb.tag[1] == Mstring
- || mdb.tag[1] == Mtext
- || mdb.tag[1] == Msymbol
- || mdb.tag[1] == Minteger
- || mdb.tag[1] == Mplist))
- mchar__define_prop (mdb.tag[2], mdb.tag[1],
- mdb_list.mdbs + mdb_list.used - 1);
+ MPlist *p;
+ MSymbol tags2[4];
+
+ for (j = 0, p = MPLIST_PLIST (pl); j < 4 && MPLIST_SYMBOL_P (p);
+ j++, p = MPLIST_NEXT (p))
+ tags2[j] = MPLIST_SYMBOL (p);
+ for (; j < 4; j++)
+ tags2[j] = Mnil;
+ for (j = 0; j < 4; j++)
+ if (tags[j] != Masterisk && tags[j] != tags2[j])
+ break;
+ if (j == 4)
+ register_database (tags2, load_database,
+ globbuf.gl_pathv[i] + headlen,
+ MDB_STATUS_AUTO, p);
}
+ M17N_OBJECT_UNREF (pl);
}
- M17N_OBJECT_UNREF (pl);
+ globfree (&globbuf);
+ if (filename[0] == PATH_SEPARATOR)
+ break;
}
+ M17N_OBJECT_UNREF (load_key);
+}
+
+static int
+expand_wildcard_database (MPlist *plist)
+{
+ MDatabase *mdb;
+ MDatabaseInfo *db_info;
- SAFE_FREE (path);
+ plist = MPLIST_NEXT (plist);
+ while (MPLIST_PLIST_P (plist))
+ {
+ plist = MPLIST_PLIST (plist);
+ plist = MPLIST_NEXT (plist);
+ }
+ mdb = MPLIST_VAL (plist);
+ if (mdb->loader == load_database
+ && (db_info = mdb->extra_info)
+ && db_info->status != MDB_STATUS_DISABLED)
+ {
+ register_databases_in_files (mdb->tag, db_info->filename, db_info->len);
+ db_info->status = MDB_STATUS_DISABLED;
+ return 1;
+ }
+ return 0;
}
\f
/** List of database directories. */
MPlist *mdatabase__dir_list;
+void *(*mdatabase__load_charset_func) (FILE *fp, MSymbol charset_name);
+
int
mdatabase__init ()
{
MDatabaseInfo *dir_info;
+ char *path;
+
+ mdatabase__load_charset_func = NULL;
Mchar_table = msymbol ("char-table");
+ Mcharset = msymbol ("charset");
Masterisk = msymbol ("*");
+ Mversion = msymbol ("version");
mdatabase__dir_list = mplist ();
/** The macro M17NDIR specifies a directory where the system-wide
MDB_DIR file exists. */
- if ((dir_info = get_dir_info (M17NDIR)))
- mplist_set (mdatabase__dir_list, Mt, dir_info);
+ mplist_set (mdatabase__dir_list, Mt, get_dir_info (M17NDIR));
/* The variable mdatabase_dir specifies a directory where an
application program specific MDB_DIR file exists. */
- if ((dir_info = get_dir_info (mdatabase_dir)))
- mplist_push (mdatabase__dir_list, Mt, dir_info);
-
- /* The environment variable M17NDIR (if non-NULL) specifies a
- directory where a user specific MDB_DIR file exists. */
- if ((dir_info = get_dir_info (getenv ("M17NDIR"))))
- mplist_push (mdatabase__dir_list, Mt, dir_info);
-
- MLIST_INIT1 (&mdb_list, mdbs, 256);
- update_database_list ();
+ if (mdatabase_dir && strlen (mdatabase_dir) > 0)
+ mplist_push (mdatabase__dir_list, Mt, get_dir_info (mdatabase_dir));
+
+ /* The environment variable M17NDIR specifies a directory where a
+ user specific MDB_DIR file exists. */
+ path = getenv ("M17NDIR");
+ if (path && strlen (path) > 0)
+ mplist_push (mdatabase__dir_list, Mt, get_dir_info (path));
+ else
+ {
+ /* If the env var M17NDIR is not set, check "~/.m17n.d". */
+ char *home = getenv ("HOME");
+ int len;
- mdatabase__finder = ((void *(*) (MSymbol, MSymbol, MSymbol, MSymbol))
- mdatabase_find);
- mdatabase__loader = (void *(*) (void *)) mdatabase_load;
+ if (home
+ && (len = strlen (home))
+ && (path = alloca (len + 9)))
+ {
+ strcpy (path, home);
+ if (path[len - 1] != PATH_SEPARATOR)
+ path[len++] = PATH_SEPARATOR;
+ strcpy (path + len, ".m17n.d");
+ dir_info = get_dir_info (path);
+ mplist_push (mdatabase__dir_list, Mt, dir_info);
+ }
+ else
+ mplist_push (mdatabase__dir_list, Mt, get_dir_info (NULL));
+ }
+ mdatabase__list = mplist ();
+ mdatabase__update ();
return 0;
}
void
mdatabase__fini (void)
{
- int i;
- MPlist *plist;
+ MPlist *plist, *p0, *p1, *p2, *p3;
+
+ MPLIST_DO (plist, mdatabase__dir_list)
+ free_db_info (MPLIST_VAL (plist));
+ M17N_OBJECT_UNREF (mdatabase__dir_list);
+
+ /* MDATABASE_LIST ::= ((TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) ...) */
+ MPLIST_DO (plist, mdatabase__list)
+ {
+ p0 = MPLIST_PLIST (plist);
+ /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) ...) */
+ MPLIST_DO (p0, MPLIST_NEXT (p0))
+ {
+ p1 = MPLIST_PLIST (p0);
+ /* P1 ::= (TAG1 (TAG2 (TAG3 t:MDB) ...) ...) */
+ MPLIST_DO (p1, MPLIST_NEXT (p1))
+ {
+ p2 = MPLIST_PLIST (p1);
+ /* P2 ::= (TAG2 (TAG3 t:MDB) ...) */
+ MPLIST_DO (p2, MPLIST_NEXT (p2))
+ {
+ MDatabase *mdb;
+
+ p3 = MPLIST_PLIST (p2); /* P3 ::= (TAG3 t:MDB) */
+ p3 = MPLIST_NEXT (p3);
+ mdb = MPLIST_VAL (p3);
+ if (mdb->loader == load_database)
+ free_db_info (mdb->extra_info);
+ free (mdb);
+ }
+ }
+ }
+ }
+ M17N_OBJECT_UNREF (mdatabase__list);
+}
+
+void
+mdatabase__update (void)
+{
+ MPlist *plist, *p0, *p1, *p2, *p3;
+ char path[PATH_MAX + 1];
+ MDatabaseInfo *dir_info;
+ struct stat statbuf;
+ int rescan = 0;
+ /* Update elements of mdatabase__dir_list. */
MPLIST_DO (plist, mdatabase__dir_list)
{
- MDatabaseInfo *dir_info = MPLIST_VAL (plist);
+ dir_info = MPLIST_VAL (plist);
+ if (dir_info->filename)
+ {
+ if (stat (dir_info->filename, &statbuf) == 0
+ && (statbuf.st_mode & S_IFDIR))
+ {
+ if (dir_info->time < statbuf.st_mtime)
+ {
+ rescan = 1;
+ dir_info->time = statbuf.st_mtime;
+ }
+ if (GEN_PATH (path, dir_info->filename, dir_info->len,
+ MDB_DIR, MDB_DIR_LEN)
+ && stat (path, &statbuf) >= 0
+ && dir_info->time < statbuf.st_mtime)
+ {
+ rescan = 1;
+ dir_info->time = statbuf.st_mtime;
+ }
+ dir_info->status = MDB_STATUS_UPDATED;
+ }
+ else
+ {
+ if (dir_info->status != MDB_STATUS_DISABLED)
+ {
+ rescan = 1;
+ dir_info->time = 0;
+ dir_info->status = MDB_STATUS_DISABLED;
+ }
+ }
+ }
+ }
+
+ if (! rescan)
+ return;
- free (dir_info->filename);
- free (dir_info);
+ /* At first, mark all databases defined automatically from mdb.dir
+ file(s) as "disabled". */
+ MPLIST_DO (plist, mdatabase__list)
+ {
+ p0 = MPLIST_PLIST (plist);
+ /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
+ MPLIST_DO (p0, MPLIST_NEXT (p0))
+ {
+ p1 = MPLIST_PLIST (p0);
+ MPLIST_DO (p1, MPLIST_NEXT (p1))
+ {
+ p2 = MPLIST_PLIST (p1);
+ MPLIST_DO (p2, MPLIST_NEXT (p2))
+ {
+ MDatabase *mdb;
+ MDatabaseInfo *db_info;
+
+ p3 = MPLIST_PLIST (p2);
+ p3 = MPLIST_NEXT (p3);
+ mdb = MPLIST_VAL (p3);
+ db_info = mdb->extra_info;
+ if (db_info->status == MDB_STATUS_AUTO)
+ db_info->status = MDB_STATUS_DISABLED;
+ }
+ }
+ }
}
- M17N_OBJECT_UNREF (mdatabase__dir_list);
- for (i = 0; i < mdb_list.used; i++)
+ plist = mplist ();
+ MPLIST_DO (p0, mdatabase__dir_list)
+ mplist_push (plist, MPLIST_KEY (p0), MPLIST_VAL (p0));
+
+ while (! MPLIST_TAIL_P (plist))
{
- MDatabase *mdb = mdb_list.mdbs + i;
+ MDatabaseInfo *dir_info = mplist_pop (plist);
+ MPlist *pl, *p;
+ int i;
+ FILE *fp;
- if (mdb->loader == load_database)
+ if (dir_info->status == MDB_STATUS_DISABLED)
+ continue;
+ if (! GEN_PATH (path, dir_info->filename, dir_info->len,
+ MDB_DIR, MDB_DIR_LEN))
+ continue;
+ if (! (fp = fopen (path, "r")))
+ continue;
+ pl = mplist__from_file (fp, NULL);
+ fclose (fp);
+ if (! pl)
+ continue;
+ MPLIST_DO (p, pl)
{
- MDatabaseInfo *db_info = mdb->extra_info;
+ MSymbol tags[4];
+ MPlist *p1;
+ MText *mt;
+ int nbytes;
+ int with_wildcard = 0;
- free (db_info->filename);
- free (db_info);
+ if (! MPLIST_PLIST_P (p))
+ continue;
+ for (i = 0, p1 = MPLIST_PLIST (p); i < 4 && MPLIST_SYMBOL_P (p1);
+ i++, p1 = MPLIST_NEXT (p1))
+ with_wildcard |= ((tags[i] = MPLIST_SYMBOL (p1)) == Masterisk);
+ if (i == 0
+ || tags[0] == Masterisk
+ || ! MPLIST_MTEXT_P (p1))
+ continue;
+ for (; i < 4; i++)
+ tags[i] = with_wildcard ? Masterisk : Mnil;
+ mt = MPLIST_MTEXT (p1);
+ nbytes = mtext_nbytes (mt);
+ if (nbytes > PATH_MAX)
+ continue;
+ memcpy (path, MTEXT_DATA (mt), nbytes);
+ path[nbytes] = '\0';
+ if (with_wildcard)
+ register_database (tags, load_database, path,
+ MDB_STATUS_AUTO_WILDCARD, NULL);
+ else
+ register_database (tags, load_database, path,
+ MDB_STATUS_AUTO, p1);
}
+ M17N_OBJECT_UNREF (pl);
}
- MLIST_FREE1 (&mdb_list, mdbs);
+ M17N_OBJECT_UNREF (plist);
}
MPlist *
mdatabase__load_for_keys (MDatabase *mdb, MPlist *keys)
{
- int mdebug_mask = MDEBUG_DATABASE;
+ int mdebug_flag = MDEBUG_DATABASE;
+ MDatabaseInfo *db_info;
+ char *filename;
FILE *fp;
MPlist *plist;
- char buf[256];
+ char name[256];
if (mdb->loader != load_database
|| mdb->tag[0] == Mchar_table
|| mdb->tag[0] == Mcharset)
MERROR (MERROR_DB, NULL);
- MDEBUG_PRINT1 (" [DATABASE] loading <%s>.\n",
- gen_database_name (buf, mdb->tag));
- fp = get_database_stream ((MDatabaseInfo *) mdb->extra_info);
- if (! fp)
+ MDEBUG_PRINT1 (" [DB] <%s>.\n",
+ gen_database_name (name, mdb->tag));
+ db_info = mdb->extra_info;
+ filename = get_database_file (db_info, NULL, NULL);
+ if (! filename || ! (fp = fopen (filename, "r")))
MERROR (MERROR_DB, NULL);
plist = mplist__from_file (fp, keys);
fclose (fp);
}
-/* Check if the database MDB should be reloaded or not. */
+/* Check if the database MDB should be reloaded or not. It returns:
+
+ 1: The database has not been updated since it was loaded last
+ time.
+
+ 0: The database has never been loaded or has been updated
+ since it was loaded last time.
+
+ -1: The database is not loadable at the moment. */
int
mdatabase__check (MDatabase *mdb)
{
MDatabaseInfo *db_info = (MDatabaseInfo *) mdb->extra_info;
struct stat buf;
+ int result;
+
+ if (db_info->absolute_filename != db_info->filename
+ || db_info->status == MDB_STATUS_AUTO)
+ mdatabase__update ();
+
+ if (! get_database_file (db_info, &buf, &result)
+ || result < 0)
+ return -1;
+ if (db_info->time < buf.st_mtime)
+ return 0;
+ return 1;
+}
+
+/* Search directories in mdatabase__dir_list for file FILENAME. If
+ the file exist, return the absolute pathname. If FILENAME is
+ already absolute, return a copy of it. */
+
+char *
+mdatabase__find_file (char *filename)
+{
+ struct stat buf;
+ int result;
+ MDatabaseInfo db_info;
+
+ if (filename[0] == PATH_SEPARATOR)
+ return (stat (filename, &buf) == 0 ? strdup (filename) : NULL);
+ db_info.filename = filename;
+ db_info.len = strlen (filename);
+ db_info.time = 0;
+ db_info.absolute_filename = NULL;
+ if (! get_database_file (&db_info, &buf, &result)
+ || result < 0)
+ return NULL;
+ return db_info.absolute_filename;
+}
+
+char *
+mdatabase__file (MDatabase *mdb)
+{
+ MDatabaseInfo *db_info;
+
+ if (mdb->loader != load_database)
+ return NULL;
+ db_info = mdb->extra_info;
+ return get_database_file (db_info, NULL, NULL);
+}
+
+int
+mdatabase__lock (MDatabase *mdb)
+{
+ MDatabaseInfo *db_info;
+ struct stat buf;
+ FILE *fp;
+ int len;
+ char *file;
+
+ if (mdb->loader != load_database)
+ return -1;
+ db_info = mdb->extra_info;
+ if (db_info->lock_file)
+ return -1;
+ file = get_database_file (db_info, NULL, NULL);
+ if (! file)
+ return -1;
+ len = strlen (file);
+ db_info->uniq_file = malloc (len + 35);
+ if (! db_info->uniq_file)
+ return -1;
+ db_info->lock_file = malloc (len + 5);
+ if (! db_info->lock_file)
+ {
+ free (db_info->uniq_file);
+ return -1;
+ }
+ sprintf (db_info->uniq_file, "%s.%X.%X", db_info->absolute_filename,
+ (unsigned) time (NULL), (unsigned) getpid ());
+ sprintf (db_info->lock_file, "%s.LCK", db_info->absolute_filename);
+
+ fp = fopen (db_info->uniq_file, "w");
+ if (! fp)
+ {
+ char *str = strdup (db_info->uniq_file);
+ char *dir = dirname (str);
+
+ if (stat (dir, &buf) == 0
+ || mkdir (dir, 0777) < 0
+ || ! (fp = fopen (db_info->uniq_file, "w")))
+ {
+ free (db_info->uniq_file);
+ free (db_info->lock_file);
+ db_info->lock_file = NULL;
+ free (str);
+ return -1;
+ }
+ free (str);
+ }
+ fclose (fp);
+ if (link (db_info->uniq_file, db_info->lock_file) < 0
+ && (stat (db_info->uniq_file, &buf) < 0
+ || buf.st_nlink != 2))
+ {
+ unlink (db_info->uniq_file);
+ unlink (db_info->lock_file);
+ free (db_info->uniq_file);
+ free (db_info->lock_file);
+ db_info->lock_file = NULL;
+ return 0;
+ }
+ return 1;
+}
+
+int
+mdatabase__save (MDatabase *mdb, MPlist *data)
+{
+ MDatabaseInfo *db_info;
+ FILE *fp;
+ char *file;
+ MText *mt;
+ int ret;
+
+ if (mdb->loader != load_database)
+ return -1;
+ db_info = mdb->extra_info;
+ if (! db_info->lock_file)
+ return -1;
+ file = get_database_file (db_info, NULL, NULL);
+ if (! file)
+ return -1;
+ mt = mtext ();
+ if (mplist__serialize (mt, data, 1) < 0)
+ {
+ M17N_OBJECT_UNREF (mt);
+ return -1;
+ }
+ fp = fopen (db_info->uniq_file, "w");
+ if (! fp)
+ {
+ M17N_OBJECT_UNREF (mt);
+ return -1;
+ }
+ if (mt->format > MTEXT_FORMAT_UTF_8)
+ mtext__adjust_format (mt, MTEXT_FORMAT_UTF_8);
+ fwrite (MTEXT_DATA (mt), 1, mtext_nchars (mt), fp);
+ fclose (fp);
+ M17N_OBJECT_UNREF (mt);
+ if ((ret = rename (db_info->uniq_file, file)) < 0)
+ unlink (db_info->uniq_file);
+ free (db_info->uniq_file);
+ db_info->uniq_file = NULL;
+ return ret;
+}
- if (stat (db_info->filename, &buf) < 0)
+int
+mdatabase__unlock (MDatabase *mdb)
+{
+ MDatabaseInfo *db_info;
+
+ if (mdb->loader != load_database)
return -1;
- return (db_info->time >= buf.st_ctime
- && db_info->time >= buf.st_mtime);
+ db_info = mdb->extra_info;
+ if (! db_info->lock_file)
+ return -1;
+ unlink (db_info->lock_file);
+ free (db_info->lock_file);
+ db_info->lock_file = NULL;
+ if (db_info->uniq_file)
+ {
+ unlink (db_info->uniq_file);
+ free (db_info->uniq_file);
+ }
+ return 0;
+}
+
+MPlist *
+mdatabase__props (MDatabase *mdb)
+{
+ MDatabaseInfo *db_info;
+
+ if (mdb->loader != load_database)
+ return NULL;
+ db_info = mdb->extra_info;
+ return db_info->properties;
}
/*** @} */
\f
/* External API */
+/*** @addtogroup m17nCharset */
+/*** @{ */
+/*=*/
+/***en
+ @brief The symbol @c Mcharset.
+
+ Any decoded M-text has a text property whose key is the predefined
+ symbol @c Mcharset. The name of @c Mcharset is
+ <tt>"charset"</tt>. */
+
+/***ja
+ @brief ¥·¥ó¥Ü¥ë @c Mcharset.
+
+ ¥Ç¥³¡¼¥É¤µ¤ì¤¿ M-text ¤Ï¡¢¥¡¼¤¬ @c Mcharset
+ ¤Ç¤¢¤ë¤è¤¦¤Ê¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Ä¡£
+ ¥·¥ó¥Ü¥ë @c Mcharset ¤Ï <tt>"charset"</tt> ¤È¤¤¤¦Ì¾Á°¤ò»ý¤Ä¡£ */
+
+MSymbol Mcharset;
+/*=*/
+/*** @} */
+/*=*/
+
/*** @addtogroup m17nDatabase */
/*** @{ */
MDatabase *
mdatabase_find (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
{
- update_database_list ();
- return find_database (tag0, tag1, tag2, tag3);
+ MSymbol tags[4];
+
+ mdatabase__update ();
+ tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
+ return find_database (tags);
}
/*=*/
MPlist *
mdatabase_list (MSymbol tag0, MSymbol tag1, MSymbol tag2, MSymbol tag3)
{
- int i;
- MPlist *plist = NULL, *pl;
+ MPlist *plist = mplist (), *pl = plist;
+ MPlist *p, *p0, *p1, *p2, *p3;
- update_database_list ();
+ mdatabase__update ();
- for (i = 0; i < mdb_list.used; i++)
+ MPLIST_DO (p, mdatabase__list)
{
- MDatabase *mdb = mdb_list.mdbs + i;
-
- if ((tag0 == Mnil || tag0 == mdb->tag[0])
- && (tag1 == Mnil || tag1 == mdb->tag[1])
- && (tag2 == Mnil || tag2 == mdb->tag[2])
- && (tag3 == Mnil || tag3 == mdb->tag[3]))
+ p0 = MPLIST_PLIST (p);
+ /* P0 ::= (TAG0 (TAG1 (TAG2 (TAG3 MDB) ...) ...) ...) */
+ if (MPLIST_SYMBOL (p0) == Masterisk
+ || (tag0 != Mnil && MPLIST_SYMBOL (p0) != tag0))
+ continue;
+ MPLIST_DO (p0, MPLIST_NEXT (p0))
{
- if (! plist)
- plist = pl = mplist ();
- pl = mplist_add (pl, Mt, mdb);
+ p1 = MPLIST_PLIST (p0);
+ if (MPLIST_SYMBOL (p1) == Masterisk)
+ {
+ if (expand_wildcard_database (p1))
+ {
+ M17N_OBJECT_UNREF (plist);
+ return mdatabase_list (tag0, tag1, tag2, tag3);
+ }
+ continue;
+ }
+ if (tag1 != Mnil && MPLIST_SYMBOL (p1) != tag1)
+ continue;
+ MPLIST_DO (p1, MPLIST_NEXT (p1))
+ {
+ p2 = MPLIST_PLIST (p1);
+ if (MPLIST_SYMBOL (p2) == Masterisk)
+ {
+ if (expand_wildcard_database (p2))
+ {
+ M17N_OBJECT_UNREF (plist);
+ return mdatabase_list (tag0, tag1, tag2, tag3);
+ }
+ continue;
+ }
+ if (tag2 != Mnil && MPLIST_SYMBOL (p2) != tag2)
+ continue;
+ MPLIST_DO (p2, MPLIST_NEXT (p2))
+ {
+ p3 = MPLIST_PLIST (p2);
+ if (MPLIST_SYMBOL (p3) == Masterisk)
+ {
+ if (expand_wildcard_database (p3))
+ {
+ M17N_OBJECT_UNREF (plist);
+ return mdatabase_list (tag0, tag1, tag2, tag3);
+ }
+ continue;
+ }
+ if (tag3 != Mnil && MPLIST_SYMBOL (p3) != tag3)
+ continue;
+ p3 = MPLIST_NEXT (p3);
+ pl = mplist_add (pl, Mt, MPLIST_VAL (p3));
+ }
+ }
}
}
+ if (MPLIST_TAIL_P (plist))
+ M17N_OBJECT_UNREF (plist);
return plist;
}
void *extra_info)
{
MDatabase *mdb;
+ MSymbol tags[4];
- mdb = mdatabase_find (tag0, tag1, tag2, tag3);
- if (! mdb)
- {
- MDatabase template;
-
- template.tag[0] = tag0, template.tag[1] = tag1;
- template.tag[2] = tag2, template.tag[3] = tag3;
- template.extra_info = NULL;
- MLIST_APPEND1 (&mdb_list, mdbs, template, MERROR_DB);
- mdb = mdb_list.mdbs + (mdb_list.used - 1);
- }
- mdb->loader = loader ? loader : load_database;
- if (mdb->loader == load_database)
- {
- MDatabaseInfo *db_info = mdb->extra_info;
-
- if (db_info)
- free (db_info->filename);
- else
- db_info = mdb->extra_info = malloc (sizeof (MDatabaseInfo));
- db_info->filename = strdup ((char *) extra_info);
- db_info->time = 0;
- }
- else
- mdb->extra_info = extra_info;
- return (&(mdb_list.mdbs[mdb_list.used - 1]));
+ tags[0] = tag0, tags[1] = tag1, tags[2] = tag2, tags[3] = tag3;
+ if (! loader)
+ loader = load_database;
+ mdb = register_database (tags, loader, extra_info, MDB_STATUS_EXPLICIT, NULL);
+ return mdb;
}
/*=*/
void *
mdatabase_load (MDatabase *mdb)
{
- int mdebug_mask = MDEBUG_DATABASE;
- char buf[256];
-
- MDEBUG_PRINT1 (" [DATABASE] loading <%s>.\n",
- gen_database_name (buf, mdb->tag));
return (*mdb->loader) (mdb->tag, mdb->extra_info);
}
projects / m17n / m17n-lib.git / blobdiff