1 /* input.c -- input method 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 m17nInputMethod
25 @brief API for Input method.
27 An input method is an object to enable inputting various
28 characters. An input method is identified by a pair of symbols,
29 LANGUAGE and NAME. This pair decides a input method driver of the
30 input method. An input method driver is a set of functions for
31 handling the input method. There are two kinds of input methods;
32 internal one and foreign one.
35 <li> Internal Input Method
37 An internal input method has non @c Mnil LANGUAGE, and the body is
38 defined in the m17n database by the tag <Minput_method, LANGUAGE,
39 NAME>. For this kind of input methods, the m17n library uses two
40 predefined input method drivers, one for CUI use and the other for
41 GUI use. Those driver utilize the input processing engine
42 provided by the m17n library itself. The m17n database may
43 provides an input method that is not only for a specific language.
44 The database uses @c Mt as LANGUAGE of such an input method.
46 An internal input method accepts an input key which is a symbol
47 associated with an input event. As there is no way for the @c
48 m17n @c library to know how input events are represented in an
49 application program, an application programmer have to convert an
50 input event to an input key by himself. See the documentation of
51 the function minput_event_to_key () for the detail.
53 <li> Foreign Input Method
55 A foreign input method has @c Mnil LANGUAGE, and the body is
56 defined in an external resources (e.g. XIM of X Window System).
57 For this kind of input methods, the symbol NAME must have a
58 property of key @c Minput_driver, and the value must be a pointer
59 to an input method driver. Therefore, by preparing a proper
60 driver, any kind of input method can be treated in the framework
61 of the @c m17n @c library.
63 For convenience, the m17n-X library provides an input method
64 driver that enables the input style of OverTheSpot for XIM, and
65 stores @c Minput_driver property of the symbol @c Mxim with a
66 pointer to the driver. See the documentation of m17n GUI API for
73 The typical processing flow of handling an input method is:
75 @li open an input method
76 @li create an input context for the input method
77 @li filter an input key
78 @li look up a produced text in the input context */
82 @addtogroup m17nInputMethod
83 @brief ÆþÎϥ᥽¥Ã¥ÉÍÑAPI.
85 ÆþÎϥ᥽¥Ã¥É¤Ï¿ÍͤÊʸ»ú¤òÆþÎϤ¹¤ë¤¿¤á¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Ç¤¢¤ë¡£ÆþÎÏ¥á
86 ¥½¥Ã¥É¤Ï¥·¥ó¥Ü¥ë LANGUAGE ¤È NAME ¤ÎÁȤˤè¤Ã¤Æ¼±Ê̤µ¤ì¡¢¤³¤ÎÁȤˤè¤Ã
87 ¤ÆÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤¬·è¤Þ¤ë¡£ÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤È¤Ï¤¢¤ëÆþÎÏ¥á
88 ¥½¥Ã¥É¤ò°·¤¦¤¿¤á¤Î´Ø¿ô¤Î½¸¤Þ¤ê¤Ç¤¢¤ë¡£ ÆþÎϥ᥽¥Ã¥É¤Ë¤ÏÆâÉô¥á¥½¥Ã
89 ¥É¤È³°Éô¥á¥½¥Ã¥É¤ÎÆóÄ̤꤬¤¢¤ë¡£
94 ÆâÉôÆþÎϥ᥽¥Ã¥É¤Ï LANGUAGE ¤¬ @c Mnil °Ê³°¤Î¤â¤Î¤Ç¤¢¤ê¡¢ËÜÂΤÏ
95 m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë <Minput_method, LANGUAGE, NAME>¤È¤¤¤¦¥¿¥°ÉÕ¤
96 ¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£¤³¤Î¼ï¤ÎÆþÎϥ᥽¥Ã¥É¤ËÂФ·¤Æ¡¢m17n ¥é¥¤¥Ö¥é¥ê¤Ë
97 ¤ÏCUIÍѤÈGUIÍѤ½¤ì¤¾¤ì¤ÎÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤¬¤¢¤é¤«¤¸¤á½àÈ÷¤µ¤ì¤Æ
98 ¤¤¤ë¡£¤³¤ì¤é¤Î¥É¥é¥¤¥Ð¤Ïm17n¥é¥¤¥Ö¥é¥ê¼«¿È¤ÎÆþÎϽèÍý¥¨¥ó¥¸¥ó¤òÍøÍÑ
99 ¤¹¤ë¡£m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤Ï¡¢ÆÃÄê¤Î¸À¸ìÀìÍѤǤʤ¤ÆþÎϥ᥽¥Ã¥É¤âÄê
100 µÁ¤¹¤ë¤³¤È¤¬¤Ç¤¡¢¤½¤Î¤è¤¦¤ÊÆþÎϥ᥽¥Ã¥É¤Î LANGUAGE ¤Ï @c Mt ¤Ç¤¢
103 ÆâÉôÆþÎϥ᥽¥Ã¥É¤Ï¡¢¥æ¡¼¥¶¤ÎÆþÎÏ¥¤¥Ù¥ó¥È¤ËÂбþ¤·¤¿¥·¥ó¥Ü¥ë¤Ç¤¢¤ëÆþ
104 ÎÏ¥¡¼¤ò¼õ¤±¼è¤ë¡£@c m17n @c ¥é¥¤¥Ö¥é¥ê ¤ÏÆþÎÏ¥¤¥Ù¥ó¥È¤¬¥¢¥×¥ê¥±¡¼
105 ¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ç¤É¤¦É½¸½¤µ¤ì¤Æ¤¤¤ë¤«¤òÃΤë½Ñ¤ò»ý¤¿¤Ê¤¤¤Î¤Ç¡¢ÆþÎÏ
106 ¥¤¥Ù¥ó¥È¤«¤éÆþÎÏ¥¡¼¤Ø¤ÎÊÑ´¹¤Ï¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¥×¥í¥°¥é¥Þ¤ÎÀÕǤ¤Ç¹Ô
107 ¤ï¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï´Ø¿ô minput_event_to_key () ¤ÎÀâ
110 <li> ³°ÉôÆþÎϥ᥽¥Ã¥É
112 ³°ÉôÆþÎϥ᥽¥Ã¥É¤Ï LANGUAGE ¤¬ @c Mnil ¤Î¤â¤Î¤Ç¤¢¤ê¡¢ËÜÂΤϳ°Éô¤Î
113 ¥ê¥½¡¼¥¹¤È¤·¤ÆÄêµÁ¤µ¤ì¤ë¡£¡Ê¤¿¤È¤¨¤ÐX Window System ¤ÎXIM ¤Ê¤É¡£)
114 ¤³¤Î¼ï¤ÎÆþÎϥ᥽¥Ã¥É¤Ç¤Ï¡¢¥·¥ó¥Ü¥ë NAME ¤Ï@c Minput_driver ¤ò¥¡¼
115 ¤È¤¹¤ë¥×¥í¥Ñ¥Æ¥£¤ò»ý¤Á¡¢¤½¤ÎÃͤÏÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç
116 ¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¤·¤¿¤¬¤Ã¤Æ¡¢Å¬Àڤʥɥ饤¥Ð¤ò½àÈ÷¤¹¤ë¤³¤È¤Ë¤è¤Ã¤Æ¡¢
117 ¤¤¤«¤Ê¤ë¼ïÎà¤ÎÆþÎϥ᥽¥Ã¥É¤â @c m17n @c ¥é¥¤¥Ö¥é¥ê ¤ÎÏÈÁȤÎÃæ¤Ç°·
120 ÍøÊØÀ¤Î¤¿¤á¡¢m17n X ¥é¥¤¥Ö¥é¥ê¤Ï XIM ¤Î OverTheSpot ¤ÎÆþÎÏ¥¹¥¿¥¤¥ë
121 ¤ò¼Â¸½¤¹¤ëÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤òÄ󶡤·¡¢¤Þ¤¿¥·¥ó¥Ü¥ë @c Mxim ¤Î @c
122 Minput_driver ¥×¥í¥Ñ¥Æ¥£¤ÎÃͤȤ·¤Æ¤½¤Î¥É¥é¥¤¥Ð¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÝ»ý¤·
123 ¤Æ¤¤¤ë¡£¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï m17n GUI API ¤Î¥É¥¥å¥á¥ó¥È¤ò»²¾È¤Î¤³¤È¡£
129 ÆþÎϥ᥽¥Ã¥É½èÍý¤Îŵ·¿Åª¤Ê½èÍý¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤Ê¤ë¡£
131 @li ÆþÎϥ᥽¥Ã¥É¤Î¥ª¡¼¥×¥ó
132 @li ¤½¤ÎÆþÎϥ᥽¥Ã¥É¤ÎÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤ÎÀ¸À®
133 @li ÆþÎÏ¥¤¥Ù¥ó¥È¤Î¥Õ¥£¥ë¥¿
134 @li ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤Ç¤ÎÀ¸À®¥Æ¥¥¹¥È¤Î¸¡º÷ */
138 #if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
139 /*** @addtogroup m17nInternal
151 #include "m17n-gui.h"
152 #include "m17n-misc.h"
153 #include "internal.h"
159 static int mdebug_mask = MDEBUG_INPUT;
161 static MSymbol Minput_method;
163 /** Symbols to load an input method data. */
164 static MSymbol Mtitle, Mmacro, Mmodule, Mstate;
166 /** Symbols for actions. */
167 static MSymbol Minsert, Mdelete, Mmark, Mmove, Mpushback, Mundo, Mcall, Mshift;
168 static MSymbol Mselect, Mshow, Mhide;
169 static MSymbol Mset, Madd, Msub, Mmul, Mdiv, Mequal, Mless, Mgreater;
171 static MSymbol Mcandidate_list, Mcandidate_index;
173 static MSymbol Minit, Mfini;
175 /** Symbols for key events. */
176 static MSymbol one_char_symbol[256];
178 static MSymbol M_key_alias;
180 /** Structure to hold a map. */
184 /** List of actions to take when we reach the map. In a root map,
185 the actions are executed only when there's no more key. */
188 /** List of deeper maps. If NULL, this is a terminal map. */
191 /** List of actions to take when we leave the map successfully. In
192 a root map, the actions are executed only when none of submaps
193 handle the current key. */
194 MPlist *branch_actions;
197 typedef MPlist *(*MIMExternalFunc) (MPlist *plist);
202 MPlist *func_list; /* function name vs (MIMExternalFunc *) */
207 /** Name of the state. */
210 /** Title of the state, or NULL. */
213 /** Key translation map of the state. Built by merging all maps of
220 marker_code (MSymbol sym)
226 name = MSYMBOL_NAME (sym);
227 return ((name[0] == '@'
228 && ((name[1] >= '0' && name[1] <= '9')
229 || name[1] == '<' || name[1] == '>'
230 || name[1] == '=' || name[1] == '+' || name[1] == '-'
231 || name[1] == '[' || name[1] == ']')
237 integer_value (MInputContext *ic, MPlist *arg)
239 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
241 MText *preedit = ic->preedit;
242 int len = mtext_nbytes (preedit);
244 if (MPLIST_INTEGER_P (arg))
245 return MPLIST_INTEGER (arg);
246 code = marker_code (MPLIST_SYMBOL (arg));
248 return (int) mplist_get (ic_info->vars, MPLIST_SYMBOL (arg));
249 if (code >= '0' && code <= '9')
251 else if (code == '=')
252 code = ic->cursor_pos;
253 else if (code == '-' || code == '[')
254 code = ic->cursor_pos - 1;
255 else if (code == '+' || code == ']')
256 code = ic->cursor_pos + 1;
257 else if (code == '<')
259 else if (code == '<')
261 return (code >= 0 && code < len ? mtext_ref_char (preedit, code) : -1);
265 /* Parse PLIST as an action list while modifying the list to regularize
266 actions. PLIST should have this form:
267 PLIST ::= ( (ACTION-NAME ACTION-ARG *) *).
268 Return 0 if successfully parsed, otherwise return -1. */
271 parse_action_list (MPlist *plist, MPlist *macros)
273 MPLIST_DO (plist, plist)
275 if (MPLIST_MTEXT_P (plist))
277 /* This is a short form of (insert MTEXT). */
278 /* if (mtext_nchars (MPLIST_MTEXT (plist)) == 0)
279 MERROR (MERROR_IM, -1); */
281 else if (MPLIST_PLIST_P (plist)
282 && (MPLIST_MTEXT_P (MPLIST_PLIST (plist))
283 || MPLIST_PLIST_P (MPLIST_PLIST (plist))))
287 /* This is a short form of (insert (GROUPS *)). */
288 MPLIST_DO (pl, MPLIST_PLIST (plist))
290 if (MPLIST_PLIST_P (pl))
294 MPLIST_DO (elt, MPLIST_PLIST (pl))
295 if (! MPLIST_MTEXT_P (elt)
296 || mtext_nchars (MPLIST_MTEXT (elt)) == 0)
297 MERROR (MERROR_IM, -1);
301 if (! MPLIST_MTEXT_P (pl)
302 || mtext_nchars (MPLIST_MTEXT (pl)) == 0)
303 MERROR (MERROR_IM, -1);
307 else if (MPLIST_INTEGER_P (plist))
309 int c = MPLIST_INTEGER (plist);
311 if (c < 0 || c > MCHAR_MAX)
312 MERROR (MERROR_IM, -1);
314 else if (MPLIST_PLIST_P (plist)
315 && MPLIST_SYMBOL_P (MPLIST_PLIST (plist)))
317 MPlist *pl = MPLIST_PLIST (plist);
318 MSymbol action_name = MPLIST_SYMBOL (pl);
320 pl = MPLIST_NEXT (pl);
322 if (action_name == Minsert)
324 if (MPLIST_MTEXT_P (pl))
326 if (mtext_nchars (MPLIST_MTEXT (pl)) == 0)
327 MERROR (MERROR_IM, -1);
329 else if (MPLIST_PLIST_P (pl))
333 if (MPLIST_PLIST_P (pl))
337 MPLIST_DO (elt, MPLIST_PLIST (pl))
338 if (! MPLIST_MTEXT_P (elt)
339 || mtext_nchars (MPLIST_MTEXT (elt)) == 0)
340 MERROR (MERROR_IM, -1);
344 if (! MPLIST_MTEXT_P (pl)
345 || mtext_nchars (MPLIST_MTEXT (pl)) == 0)
346 MERROR (MERROR_IM, -1);
350 else if (! MPLIST_SYMBOL_P (pl))
351 MERROR (MERROR_IM, -1);
353 else if (action_name == Mselect
354 || action_name == Mdelete
355 || action_name == Mmove)
357 if (! MPLIST_SYMBOL_P (pl)
358 && ! MPLIST_INTEGER_P (pl))
359 MERROR (MERROR_IM, -1);
361 else if (action_name == Mmark
362 || action_name == Mcall
363 || action_name == Mshift)
365 if (! MPLIST_SYMBOL_P (pl))
366 MERROR (MERROR_IM, -1);
368 else if (action_name == Mshow || action_name == Mhide
369 || action_name == Mundo)
371 if (! MPLIST_TAIL_P (pl))
372 MERROR (MERROR_IM, -1);
374 else if (action_name == Mpushback)
376 if (! MPLIST_INTEGER_P (pl))
377 MERROR (MERROR_IM, -1);
379 else if (action_name == Mset || action_name == Madd
380 || action_name == Msub || action_name == Mmul
381 || action_name == Mdiv)
383 if (! (MPLIST_SYMBOL_P (pl)
384 && (MPLIST_INTEGER_P (MPLIST_NEXT (pl))
385 || MPLIST_SYMBOL_P (MPLIST_NEXT (pl)))))
386 MERROR (MERROR_IM, -1);
388 else if (action_name == Mequal || action_name == Mless
389 || action_name == Mgreater)
391 if (! ((MPLIST_INTEGER_P (pl) || MPLIST_SYMBOL_P (pl))
392 && (MPLIST_INTEGER_P (MPLIST_NEXT (pl))
393 || MPLIST_SYMBOL_P (MPLIST_NEXT (pl)))))
394 MERROR (MERROR_IM, -1);
395 pl = MPLIST_NEXT (MPLIST_NEXT (pl));
396 if (! MPLIST_PLIST_P (pl))
397 MERROR (MERROR_IM, -1);
398 if (parse_action_list (MPLIST_PLIST (pl), macros) < 0)
399 MERROR (MERROR_IM, -1);
400 pl = MPLIST_NEXT (pl);
401 if (MPLIST_PLIST_P (pl)
402 && parse_action_list (MPLIST_PLIST (pl), macros) < 0)
403 MERROR (MERROR_IM, -1);
405 else if (! macros || ! mplist_get (macros, action_name))
406 MERROR (MERROR_IM, -1);
409 MERROR (MERROR_IM, -1);
416 /* Load a translation into MAP from PLIST.
418 PLIST ::= ( KEYSEQ MAP-ACTION * ) */
421 load_translation (MIMMap *map, MPlist *plist, MPlist *branch_actions,
427 if (MPLIST_MTEXT_P (plist))
429 MText *mt = MPLIST_MTEXT (plist);
431 len = mtext_nchars (mt);
432 if (len == 0 || len != mtext_nbytes (mt))
433 MERROR (MERROR_IM, -1);
434 keyseq = (MSymbol *) alloca (sizeof (MSymbol) * len);
435 for (i = 0; i < len; i++)
436 keyseq[i] = one_char_symbol[MTEXT_DATA (mt)[i]];
438 else if (MPLIST_PLIST_P (plist))
440 MPlist *elt = MPLIST_PLIST (plist);
442 len = MPLIST_LENGTH (elt);
444 MERROR (MERROR_IM, -1);
445 keyseq = (MSymbol *) alloca (sizeof (int) * len);
446 for (i = 0; i < len; i++, elt = MPLIST_NEXT (elt))
448 if (MPLIST_INTEGER_P (elt))
450 int c = MPLIST_INTEGER (elt);
452 if (c < 0 || c >= 0x100)
453 MERROR (MERROR_IM, -1);
454 keyseq[i] = one_char_symbol[c];
456 else if (MPLIST_SYMBOL_P (elt))
457 keyseq[i] = MPLIST_SYMBOL (elt);
459 MERROR (MERROR_IM, -1);
463 MERROR (MERROR_IM, -1);
465 for (i = 0; i < len; i++)
467 MIMMap *deeper = NULL;
470 deeper = mplist_get (map->submaps, keyseq[i]);
472 map->submaps = mplist ();
475 /* Fixme: It is better to make all deeper maps at once. */
476 MSTRUCT_CALLOC (deeper, MERROR_IM);
477 mplist_put (map->submaps, keyseq[i], deeper);
482 /* We reach a terminal map. */
484 || map->branch_actions)
485 /* This map is already defined. We avoid overriding it. */
488 plist = MPLIST_NEXT (plist);
489 if (! MPLIST_TAIL_P (plist))
491 if (parse_action_list (plist, macros) < 0)
492 MERROR (MERROR_IM, -1);
493 map->map_actions = plist;
494 M17N_OBJECT_REF (plist);
498 map->branch_actions = branch_actions;
499 M17N_OBJECT_REF (branch_actions);
505 /* Load a branch from PLIST into MAP. PLIST has this form:
506 PLIST ::= ( MAP-NAME BRANCH-ACTION * )
507 MAPS is a plist of raw maps.
508 STATE is the current state. */
511 load_branch (MPlist *plist, MPlist *maps, MIMMap *map, MPlist *macros)
514 MPlist *branch_actions;
516 if (! MPLIST_SYMBOL_P (plist))
517 MERROR (MERROR_IM, -1);
518 map_name = MPLIST_SYMBOL (plist);
519 plist = MPLIST_NEXT (plist);
520 if (MPLIST_TAIL_P (plist))
521 branch_actions = NULL;
522 else if (parse_action_list (plist, macros) < 0)
523 MERROR (MERROR_IM, -1);
525 branch_actions = plist;
526 if (map_name == Mnil)
528 map->branch_actions = branch_actions;
530 M17N_OBJECT_REF (branch_actions);
532 else if (map_name == Mt)
534 map->map_actions = branch_actions;
536 M17N_OBJECT_REF (branch_actions);
540 plist = (MPlist *) mplist_get (maps, map_name);
541 if (! plist || ! MPLIST_PLIST_P (plist))
542 MERROR (MERROR_IM, -1);
543 MPLIST_DO (plist, plist)
544 if (! MPLIST_PLIST_P (plist)
545 || (load_translation (map, MPLIST_PLIST (plist), branch_actions,
548 MERROR (MERROR_IM, -1);
554 /* Load a macro from PLIST into MACROS.
556 PLIST ::= ( MACRO-NAME ACTION * )
557 MACROS is a plist of macro names vs action list. */
559 load_macros (MPlist *plist, MPlist *macros)
563 if (! MPLIST_SYMBOL_P (plist))
564 MERROR (MERROR_IM, -1);
565 name = MPLIST_SYMBOL (plist);
566 plist = MPLIST_NEXT (plist);
567 if (MPLIST_TAIL_P (plist)
568 || parse_action_list (plist, macros) < 0)
569 MERROR (MERROR_IM, -1);
570 mplist_put (macros, name, plist);
571 M17N_OBJECT_REF (plist);
575 /* Load an external module from PLIST into EXTERNALS.
577 PLIST ::= ( MODULE-NAME FUNCTION * )
578 EXTERNALS is a plist of MODULE-NAME vs (MIMExternalModule *). */
580 #ifndef DLOPEN_SHLIB_EXT
581 #define DLOPEN_SHLIB_EXT ".so"
585 load_external_module (MPlist *plist, MPlist *externals)
590 MIMExternalModule *external;
594 if (MPLIST_MTEXT_P (plist))
595 module = msymbol ((char *) MTEXT_DATA (MPLIST_MTEXT (plist)));
596 else if (MPLIST_SYMBOL_P (plist))
597 module = MPLIST_SYMBOL (plist);
598 module_file = alloca (strlen (MSYMBOL_NAME (module))
599 + strlen (DLOPEN_SHLIB_EXT) + 1);
600 sprintf (module_file, "%s%s", MSYMBOL_NAME (module), DLOPEN_SHLIB_EXT);
602 handle = dlopen (module_file, RTLD_NOW);
605 fprintf (stderr, "%s\n", dlerror ());
606 MERROR (MERROR_IM, -1);
608 func_list = mplist ();
609 MPLIST_DO (plist, MPLIST_NEXT (plist))
611 if (! MPLIST_SYMBOL_P (plist))
612 MERROR_GOTO (MERROR_IM, err_label);
613 func = dlsym (handle, MSYMBOL_NAME (MPLIST_SYMBOL (plist)));
615 MERROR_GOTO (MERROR_IM, err_label);
616 mplist_add (func_list, MPLIST_SYMBOL (plist), func);
619 MSTRUCT_MALLOC (external, MERROR_IM);
620 external->handle = handle;
621 external->func_list = func_list;
622 mplist_add (externals, module, external);
627 M17N_OBJECT_UNREF (func_list);
632 /** Load a state from PLIST into a newly allocated state object.
634 PLIST ::= ( STATE-NAME STATE-TITLE ? BRANCH * )
635 BRANCH ::= ( MAP-NAME BRANCH-ACTION * )
636 MAPS is a plist of defined maps.
637 Return the state object. */
640 load_state (MPlist *plist, MPlist *maps, MSymbol language, MPlist *macros)
644 MSTRUCT_CALLOC (state, MERROR_IM);
645 if (! MPLIST_SYMBOL_P (plist))
646 MERROR (MERROR_IM, NULL);
647 state->name = MPLIST_SYMBOL (plist);
648 plist = MPLIST_NEXT (plist);
649 if (MPLIST_MTEXT_P (plist))
651 state->title = MPLIST_MTEXT (plist);
652 mtext_put_prop (state->title, 0, mtext_nchars (state->title),
653 Mlanguage, language);
654 M17N_OBJECT_REF (state->title);
655 plist = MPLIST_NEXT (plist);
657 MSTRUCT_CALLOC (state->map, MERROR_IM);
658 MPLIST_DO (plist, plist)
659 if (! MPLIST_PLIST_P (plist)
660 || load_branch (MPLIST_PLIST (plist), maps, state->map, macros) < 0)
661 MERROR (MERROR_IM, NULL);
667 free_map (MIMMap *map)
671 M17N_OBJECT_UNREF (map->map_actions);
674 MPLIST_DO (plist, map->submaps)
675 free_map ((MIMMap *) MPLIST_VAL (plist));
676 M17N_OBJECT_UNREF (map->submaps);
678 M17N_OBJECT_UNREF (map->branch_actions);
682 /* Load an input method from PLIST into IM_INTO, and return it. */
685 load_input_method (MSymbol language, MSymbol name, MPlist *plist,
686 MInputMethodInfo *im_info)
690 MPlist *states = NULL;
691 MPlist *externals = NULL;
692 MPlist *macros = NULL;
695 if (! MPLIST_PLIST_P (plist))
696 MERROR (MERROR_IM, -1);
697 for (; MPLIST_PLIST_P (plist); plist = MPLIST_NEXT (plist))
699 elt = MPLIST_PLIST (plist);
700 if (! MPLIST_SYMBOL_P (elt))
701 MERROR_GOTO (MERROR_IM, err);
702 if (MPLIST_SYMBOL (elt) == Mtitle)
704 elt = MPLIST_NEXT (elt);
705 if (MPLIST_MTEXT_P (elt))
707 title = MPLIST_MTEXT (elt);
708 M17N_OBJECT_REF (title);
711 MERROR_GOTO (MERROR_IM, err);
713 else if (MPLIST_SYMBOL (elt) == Mmap)
715 maps = mplist__from_alist (MPLIST_NEXT (elt));
717 MERROR_GOTO (MERROR_IM, err);
719 else if (MPLIST_SYMBOL (elt) == Mmacro)
722 MPLIST_DO (elt, MPLIST_NEXT (elt))
724 if (! MPLIST_PLIST_P (elt)
725 || load_macros (MPLIST_PLIST (elt), macros) < 0)
726 MERROR_GOTO (MERROR_IM, err);
729 else if (MPLIST_SYMBOL (elt) == Mmodule)
731 externals = mplist ();
732 MPLIST_DO (elt, MPLIST_NEXT (elt))
734 if (! MPLIST_PLIST_P (elt)
735 || load_external_module (MPLIST_PLIST (elt), externals) < 0)
736 MERROR_GOTO (MERROR_IM, err);
739 else if (MPLIST_SYMBOL (elt) == Mstate)
742 MPLIST_DO (elt, MPLIST_NEXT (elt))
746 if (! MPLIST_PLIST_P (elt))
747 MERROR_GOTO (MERROR_IM, err);
748 state = load_state (MPLIST_PLIST (elt), maps, language, macros);
750 MERROR_GOTO (MERROR_IM, err);
751 mplist_put (states, state->name, state);
756 MPLIST_DO (elt, maps)
757 M17N_OBJECT_UNREF (MPLIST_VAL (elt));
758 M17N_OBJECT_UNREF (maps);
760 title = mtext_from_data (MSYMBOL_NAME (name), MSYMBOL_NAMELEN (name),
761 MTEXT_FORMAT_US_ASCII);
762 im_info->title = title;
763 im_info->externals = externals;
764 im_info->macros = macros;
765 im_info->states = states;
771 MPLIST_DO (elt, maps)
772 M17N_OBJECT_UNREF (MPLIST_VAL (elt));
773 M17N_OBJECT_UNREF (maps);
776 M17N_OBJECT_UNREF (title);
779 MPLIST_DO (plist, states)
781 MIMState *state = (MIMState *) MPLIST_VAL (plist);
784 M17N_OBJECT_UNREF (state->title);
786 free_map (state->map);
789 M17N_OBJECT_UNREF (states);
793 MPLIST_DO (plist, externals)
795 MIMExternalModule *external = MPLIST_VAL (plist);
797 dlclose (external->handle);
798 M17N_OBJECT_UNREF (external->func_list);
800 MPLIST_KEY (plist) = Mt;
802 M17N_OBJECT_UNREF (externals);
809 static int take_action_list (MInputContext *ic, MPlist *action_list);
812 shift_state (MInputContext *ic, MSymbol state_name)
814 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
815 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
816 MIMState *state = ic_info->state;
818 /* Find a state to shift to. If not found, shift to the initial
820 state = (MIMState *) mplist_get (im_info->states, state_name);
822 state = (MIMState *) MPLIST_VAL (im_info->states);
824 MDEBUG_PRINT1 ("\n[IM] state-shift (%s)", MSYMBOL_NAME (state->name));
826 /* Enter the new state. */
827 ic_info->state = state;
828 ic_info->map = state->map;
829 ic_info->state_key_head = ic_info->key_head;
830 if (state == (MIMState *) MPLIST_VAL (im_info->states))
832 /* We have shifted to the initial state. */
835 mtext_put_prop_values (ic->preedit, 0, mtext_nchars (ic->preedit),
836 Mcandidate_list, NULL, 0);
837 mtext_put_prop_values (ic->preedit, 0, mtext_nchars (ic->preedit),
838 Mcandidate_index, NULL, 0);
839 mtext_cat (ic->produced, ic->preedit);
840 if ((mdebug__flag & mdebug_mask)
841 && mtext_nchars (ic->produced) > 0)
845 MDEBUG_PRINT (" (produced");
846 for (i = 0; i < mtext_nchars (ic->produced); i++)
847 MDEBUG_PRINT1 (" U+%04X", mtext_ref_char (ic->produced, i));
850 mtext_reset (ic->preedit);
851 ic->candidate_list = NULL;
852 ic->candidate_show = 0;
853 ic->preedit_changed = ic->candidates_changed = 1;
854 MPLIST_DO (p, ic_info->markers)
856 MPLIST_DO (p, ic_info->vars)
859 memmove (ic_info->keys, ic_info->keys + ic_info->state_key_head,
860 sizeof (int) * (ic_info->used - ic_info->state_key_head));
861 ic_info->used -= ic_info->state_key_head;
862 ic_info->state_key_head = ic_info->key_head = 0;
864 mtext_cpy (ic_info->preedit_saved, ic->preedit);
865 ic_info->state_pos = ic->cursor_pos;
866 ic->status = state->title;
868 ic->status = im_info->title;
869 ic->status_changed = 1;
870 if (ic_info->key_head == ic_info->used
871 && ic_info->map == ic_info->state->map
872 && ic_info->map->map_actions)
874 MDEBUG_PRINT (" init-actions:");
875 take_action_list (ic, ic_info->map->map_actions);
881 find_candidates_group (MPlist *plist, int index,
882 int *start_index, int *end_index, int *group_index)
884 int i = 0, gidx = 0, len;
886 MPLIST_DO (plist, plist)
888 if (MPLIST_MTEXT_P (plist))
889 len = mtext_nchars (MPLIST_MTEXT (plist));
891 len = mplist_length (MPLIST_PLIST (plist));
897 *end_index = i + len;
909 preedit_insert (MInputContext *ic, int pos, MText *mt, int c)
911 MInputContextInfo *ic_info = ((MInputContext *) ic)->info;
913 int nchars = mt ? mtext_nchars (mt) : 1;
916 mtext_ins (ic->preedit, pos, mt);
918 mtext_ins_char (ic->preedit, pos, c, 1);
919 MPLIST_DO (markers, ic_info->markers)
920 if (MPLIST_INTEGER (markers) > pos)
921 MPLIST_VAL (markers) = (void *) (MPLIST_INTEGER (markers) + nchars);
922 if (ic->cursor_pos >= pos)
923 ic->cursor_pos += nchars;
924 ic->preedit_changed = 1;
929 preedit_delete (MInputContext *ic, int from, int to)
931 MInputContextInfo *ic_info = ((MInputContext *) ic)->info;
934 mtext_del (ic->preedit, from, to);
935 MPLIST_DO (markers, ic_info->markers)
937 if (MPLIST_INTEGER (markers) > to)
939 = (void *) (MPLIST_INTEGER (markers) - (to - from));
940 else if (MPLIST_INTEGER (markers) > from);
941 MPLIST_VAL (markers) = (void *) from;
943 if (ic->cursor_pos >= to)
944 ic->cursor_pos -= to - from;
945 else if (ic->cursor_pos > from)
946 ic->cursor_pos = from;
947 ic->preedit_changed = 1;
952 new_index (MInputContext *ic, int current, int limit, MSymbol sym, MText *mt)
954 int code = marker_code (sym);
956 if (mt && (code == '[' || code == ']'))
960 if (code == '[' && current > 0)
962 if (mtext_prop_range (mt, Mcandidate_list, pos - 1, &pos, NULL, 1)
966 else if (code == ']' && current < mtext_nchars (mt))
968 if (mtext_prop_range (mt, Mcandidate_list, pos, NULL, &pos, 1))
974 return (code == '<' ? 0
975 : code == '>' ? limit
976 : code == '-' ? current - 1
977 : code == '+' ? current + 1
978 : code == '=' ? current
979 : code - '0' > limit ? limit
983 return (int) mplist_get (((MInputContextInfo *) ic->info)->markers, sym);
987 udpate_candidate (MInputContext *ic, MTextProperty *prop, int idx)
989 int from = mtext_property_start (prop);
990 int to = mtext_property_end (prop);
992 MPlist *candidate_list = mtext_property_value (prop);
993 MPlist *group = find_candidates_group (candidate_list, idx, &start,
995 int ingroup_index = idx - start;
998 preedit_delete (ic, from, to);
999 if (MPLIST_MTEXT_P (group))
1001 mt = MPLIST_MTEXT (group);
1002 preedit_insert (ic, from, NULL, mtext_ref_char (mt, ingroup_index));
1010 for (i = 0, plist = MPLIST_PLIST (group); i < ingroup_index;
1011 i++, plist = MPLIST_NEXT (plist));
1012 mt = MPLIST_MTEXT (plist);
1013 preedit_insert (ic, from, mt, 0);
1014 to = from + mtext_nchars (mt);
1016 mtext_put_prop (ic->preedit, from, to, Mcandidate_list, candidate_list);
1017 mtext_put_prop (ic->preedit, from, to, Mcandidate_index, (void *) idx);
1018 ic->cursor_pos = to;
1023 take_action_list (MInputContext *ic, MPlist *action_list)
1025 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
1026 MPlist *candidate_list = ic->candidate_list;
1027 int candidate_index = ic->candidate_index;
1028 int candidate_show = ic->candidate_show;
1029 MTextProperty *prop;
1031 MPLIST_DO (action_list, action_list)
1037 if (MPLIST_MTEXT_P (action_list)
1038 || MPLIST_INTEGER_P (action_list))
1039 name = Minsert, args = action_list;
1040 else if (MPLIST_PLIST_P (action_list)
1041 && (MPLIST_MTEXT_P (MPLIST_PLIST (action_list))
1042 || MPLIST_PLIST_P (MPLIST_PLIST (action_list))))
1043 name = Minsert, args = action_list;
1046 action = MPLIST_PLIST (action_list);
1047 name = MPLIST_SYMBOL (action);
1048 args = MPLIST_NEXT (action);
1051 MDEBUG_PRINT1 (" %s", MSYMBOL_NAME (name));
1052 if (name == Minsert)
1054 if (MPLIST_MTEXT_P (args))
1055 preedit_insert (ic, ic->cursor_pos, MPLIST_MTEXT (args), 0);
1056 else if (MPLIST_INTEGER_P (args))
1057 preedit_insert (ic, ic->cursor_pos, NULL, MPLIST_INTEGER (args));
1058 else if (MPLIST_SYMBOL_P (args))
1060 int c = integer_value (ic, args);
1062 if (c >= 0 && c <= MCHAR_MAX)
1063 preedit_insert (ic, ic->cursor_pos, NULL, c);
1070 args = MPLIST_PLIST (args);
1071 if (MPLIST_MTEXT_P (args))
1073 preedit_insert (ic, ic->cursor_pos, NULL,
1074 mtext_ref_char (MPLIST_MTEXT (args), 0));
1079 mt = MPLIST_MTEXT (MPLIST_PLIST (args));
1080 preedit_insert (ic, ic->cursor_pos, mt, 0);
1081 len = mtext_nchars (mt);
1083 mtext_put_prop (ic->preedit,
1084 ic->cursor_pos - len, ic->cursor_pos,
1085 Mcandidate_list, args);
1086 mtext_put_prop (ic->preedit,
1087 ic->cursor_pos - len, ic->cursor_pos,
1088 Mcandidate_index, (void *) 0);
1091 else if (name == Mselect)
1094 int code, idx, gindex;
1095 int pos = ic->cursor_pos;
1099 || ! (prop = mtext_get_property (ic->preedit, pos - 1,
1102 if (MPLIST_SYMBOL_P (args))
1104 code = marker_code (MPLIST_SYMBOL (args));
1110 idx = (int) mtext_get_prop (ic->preedit, pos - 1, Mcandidate_index);
1111 group = find_candidates_group (mtext_property_value (prop), idx,
1112 &start, &end, &gindex);
1114 if (code != '[' && code != ']')
1118 ? new_index (NULL, ic->candidate_index - start,
1119 end - start - 1, MPLIST_SYMBOL (args),
1121 : MPLIST_INTEGER (args)));
1124 && MPLIST_TAIL_P (MPLIST_NEXT (group))))
1129 int ingroup_index = idx - start;
1132 group = mtext_property_value (prop);
1133 len = mplist_length (group);
1146 for (idx = 0; gindex > 0; gindex--, group = MPLIST_NEXT (group))
1147 idx += (MPLIST_MTEXT_P (group)
1148 ? mtext_nchars (MPLIST_MTEXT (group))
1149 : mplist_length (MPLIST_PLIST (group)));
1150 len = (MPLIST_MTEXT_P (group)
1151 ? mtext_nchars (MPLIST_MTEXT (group))
1152 : mplist_length (MPLIST_PLIST (group)));
1153 if (ingroup_index >= len)
1154 ingroup_index = len - 1;
1155 idx += ingroup_index;
1157 udpate_candidate (ic, prop, idx);
1159 else if (name == Mshow)
1160 ic->candidate_show = 1;
1161 else if (name == Mhide)
1162 ic->candidate_show = 0;
1163 else if (name == Mdelete)
1165 int len = mtext_nchars (ic->preedit);
1166 int to = (MPLIST_SYMBOL_P (args)
1167 ? new_index (ic, ic->cursor_pos, len, MPLIST_SYMBOL (args),
1169 : MPLIST_INTEGER (args));
1175 if (to < ic->cursor_pos)
1176 preedit_delete (ic, to, ic->cursor_pos);
1177 else if (to > ic->cursor_pos)
1178 preedit_delete (ic, ic->cursor_pos, to);
1180 else if (name == Mmove)
1182 int len = mtext_nchars (ic->preedit);
1184 = (MPLIST_SYMBOL_P (args)
1185 ? new_index (ic, ic->cursor_pos, len, MPLIST_SYMBOL (args),
1187 : MPLIST_INTEGER (args));
1193 if (pos != ic->cursor_pos)
1195 ic->cursor_pos = pos;
1196 ic->preedit_changed = 1;
1199 else if (name == Mmark)
1201 int code = marker_code (MPLIST_SYMBOL (args));
1204 mplist_put (ic_info->markers, MPLIST_SYMBOL (args),
1205 (void *) ic->cursor_pos);
1207 else if (name == Mpushback)
1209 int num = MPLIST_INTEGER (args);
1212 ic_info->key_head -= num;
1214 ic_info->key_head = num;
1215 if (ic_info->key_head > ic_info->used)
1216 ic_info->key_head = ic_info->used;
1218 else if (name == Mcall)
1220 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1221 MIMExternalFunc func = NULL;
1222 MSymbol module, func_name;
1223 MPlist *func_args, *val;
1226 module = MPLIST_SYMBOL (args);
1227 args = MPLIST_NEXT (args);
1228 func_name = MPLIST_SYMBOL (args);
1230 if (im_info->externals)
1232 MIMExternalModule *external
1233 = (MIMExternalModule *) mplist_get (im_info->externals,
1236 func = (MIMExternalFunc) mplist_get (external->func_list,
1241 func_args = mplist ();
1242 mplist_add (func_args, Mt, ic);
1243 MPLIST_DO (args, MPLIST_NEXT (args))
1247 if (MPLIST_KEY (args) == Msymbol
1248 && MPLIST_KEY (args) != Mnil
1249 && (code = marker_code (MPLIST_SYMBOL (args))) >= 0)
1251 code = new_index (ic, ic->cursor_pos,
1252 mtext_nchars (ic->preedit),
1253 MPLIST_SYMBOL (args), ic->preedit);
1254 mplist_add (func_args, Minteger, (void *) code);
1257 mplist_add (func_args, MPLIST_KEY (args), MPLIST_VAL (args));
1259 val = (func) (func_args);
1260 M17N_OBJECT_UNREF (func_args);
1261 if (val && ! MPLIST_TAIL_P (val))
1262 ret = take_action_list (ic, val);
1263 M17N_OBJECT_UNREF (val);
1267 else if (name == Mshift)
1269 shift_state (ic, MPLIST_SYMBOL (args));
1271 else if (name == Mundo)
1273 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1276 mtext_reset (ic->preedit);
1277 mtext_reset (ic_info->preedit_saved);
1278 ic->cursor_pos = ic_info->state_pos = 0;
1279 ic_info->state_key_head = ic_info->key_head = 0;
1281 if (ic_info->used < 0)
1286 shift_state (ic, ((MIMState *) MPLIST_VAL (im_info->states))->name);
1291 else if (name == Mset || name == Madd || name == Msub
1292 || name == Mmul || name == Mdiv)
1294 MSymbol sym = MPLIST_SYMBOL (args);
1295 int val1 = (int) mplist_get (ic_info->vars, sym), val2;
1297 args = MPLIST_NEXT (args);
1298 val2 = integer_value (ic, args);
1301 else if (name == Madd)
1303 else if (name == Msub)
1305 else if (name == Mmul)
1309 mplist_put (ic_info->vars, sym, (void *) val1);
1311 else if (name == Mequal || name == Mless || name == Mgreater)
1314 MPlist *actions1, *actions2;
1317 val1 = integer_value (ic, args);
1318 args = MPLIST_NEXT (args);
1319 val2 = integer_value (ic, args);
1320 args = MPLIST_NEXT (args);
1321 actions1 = MPLIST_PLIST (args);
1322 args = MPLIST_NEXT (args);
1323 if (MPLIST_TAIL_P (args))
1326 actions2 = MPLIST_PLIST (args);
1327 if (name == Mequal ? val1 == val2
1328 : name == Mless ? val1 < val2
1330 ret = take_action_list (ic, actions1);
1332 ret = take_action_list (ic, actions2);
1338 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1342 && (actions = mplist_get (im_info->macros, name)))
1344 if (take_action_list (ic, actions) < 0)
1351 ic->candidate_list = NULL;
1352 if (ic->cursor_pos > 0
1353 && (prop = mtext_get_property (ic->preedit, ic->cursor_pos - 1,
1356 ic->candidate_list = mtext_property_value (prop);
1358 = (int) mtext_get_prop (ic->preedit, ic->cursor_pos - 1,
1360 ic->candidate_from = mtext_property_start (prop);
1361 ic->candidate_to = mtext_property_end (prop);
1364 ic->candidates_changed |= (candidate_list != ic->candidate_list
1365 || candidate_index != ic->candidate_index
1366 || candidate_show != ic->candidate_show);
1371 /* Handle the input key KEY in the current state and map specified in
1372 the input context IC. If KEY is handled correctly, return 0.
1373 Otherwise, return -1. */
1376 handle_key (MInputContext *ic)
1378 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1379 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
1380 MIMMap *map = ic_info->map;
1381 MIMMap *submap = NULL;
1382 MSymbol key = ic_info->keys[ic_info->key_head];
1385 MDEBUG_PRINT2 ("[IM] handle `%s' in state %s",
1386 MSYMBOL_NAME (key), MSYMBOL_NAME (ic_info->state->name));
1390 submap = mplist_get (map->submaps, key);
1391 if (! submap && (key = msymbol_get (key, M_key_alias)) != Mnil)
1392 submap = mplist_get (map->submaps, key);
1397 MDEBUG_PRINT (" submap-found");
1398 mtext_cpy (ic->preedit, ic_info->preedit_saved);
1399 ic->cursor_pos = ic_info->state_pos;
1400 ic_info->key_head++;
1401 ic_info->map = map = submap;
1402 if (map->map_actions)
1404 MDEBUG_PRINT (" map-actions:");
1405 if (take_action_list (ic, map->map_actions) < 0)
1408 else if (map->submaps)
1410 for (i = ic_info->state_key_head; i < ic_info->key_head; i++)
1412 MSymbol key = ic_info->keys[i];
1413 char *name = msymbol_name (key);
1415 if (! name[0] || ! name[1])
1416 mtext_ins_char (ic->preedit, ic->cursor_pos++, name[0], 1);
1418 ic->preedit_changed = 1;
1421 /* If this is the terminal map or we have shifted to another
1422 state, perform branch actions (if any). */
1423 if (! map->submaps || map != ic_info->map)
1425 if (map->branch_actions)
1427 MDEBUG_PRINT (" branch-actions:");
1428 if (take_action_list (ic, map->branch_actions) < 0)
1431 /* If MAP is still not the root map, shift to the current
1433 if (ic_info->map != ic_info->state->map)
1434 shift_state (ic, ic_info->state->name);
1436 MDEBUG_PRINT ("\n");
1440 /* MAP can not handle KEY. */
1442 /* If MAP is the root map of the initial state, it means that
1443 the current input method can not handle KEY. */
1444 if (map == ((MIMState *) MPLIST_VAL (im_info->states))->map)
1446 MDEBUG_PRINT (" unhandled\n");
1450 if (map != ic_info->state->map)
1452 /* If MAP is not the root map... */
1453 /* If MAP has branch actions, perform them. */
1454 if (map->branch_actions)
1456 MDEBUG_PRINT (" branch-actions:");
1457 take_action_list (ic, map->branch_actions);
1459 /* If MAP is still not the root map, shift to the current
1461 if (ic_info->map != ic_info->state->map)
1463 shift_state (ic, ic_info->state->name);
1464 /* If MAP has branch_actions, perform them. */
1465 if (ic_info->map->branch_actions)
1467 MDEBUG_PRINT (" init-actions:");
1468 take_action_list (ic, ic_info->map->branch_actions);
1474 /* MAP is the root map, perform branch actions (if any) or
1475 shift to the initial state. */
1476 if (map->branch_actions)
1478 MDEBUG_PRINT (" branch-actions:");
1479 take_action_list (ic, map->branch_actions);
1483 ((MIMState *) MPLIST_VAL (im_info->states))->name);
1485 MDEBUG_PRINT ("\n");
1491 reset_ic (MInputContext *ic)
1493 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1494 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
1496 MLIST_RESET (ic_info);
1497 ic_info->state = (MIMState *) MPLIST_VAL (im_info->states);
1498 ic_info->map = ic_info->state->map;
1499 ic_info->state_key_head = ic_info->key_head = 0;
1500 ic->cursor_pos = ic_info->state_pos = 0;
1501 ic->status = ic_info->state->title;
1503 ic->status = im_info->title;
1504 ic->candidate_list = NULL;
1505 ic->candidate_show = 0;
1506 ic->status_changed = ic->preedit_changed = ic->candidates_changed = 1;
1507 if (ic_info->map->map_actions)
1508 take_action_list (ic, ic_info->map->map_actions);
1512 open_im (MInputMethod *im)
1515 MInputMethodInfo *im_info;
1519 mdb = mdatabase_find (Minput_method, im->language, im->name, Mnil);
1522 plist = mdatabase_load (mdb);
1524 MERROR (MERROR_IM, -1);
1525 MSTRUCT_CALLOC (im_info, MERROR_IM);
1527 result = load_input_method (im->language, im->name, plist, im_info);
1528 M17N_OBJECT_UNREF (plist);
1530 MERROR (MERROR_IM, -1);
1535 close_im (MInputMethod *im)
1537 MInputMethodInfo *im_info = (MInputMethodInfo *) im->info;
1541 M17N_OBJECT_UNREF (im_info->title);
1542 if (im_info->states)
1544 MPLIST_DO (plist, im_info->states)
1546 MIMState *state = (MIMState *) MPLIST_VAL (plist);
1549 M17N_OBJECT_UNREF (state->title);
1551 free_map (state->map);
1554 M17N_OBJECT_UNREF (im_info->states);
1557 if (im_info->macros)
1559 MPLIST_DO (plist, im_info->macros)
1560 M17N_OBJECT_UNREF (MPLIST_VAL (plist));
1561 M17N_OBJECT_UNREF (im_info->macros);
1564 if (im_info->externals)
1566 MPLIST_DO (plist, im_info->externals)
1568 MIMExternalModule *external = MPLIST_VAL (plist);
1570 dlclose (external->handle);
1571 M17N_OBJECT_UNREF (external->func_list);
1573 MPLIST_KEY (plist) = Mt;
1575 M17N_OBJECT_UNREF (im_info->externals);
1583 create_ic (MInputContext *ic)
1585 MInputMethod *im = ic->im;
1586 MInputMethodInfo *im_info = (MInputMethodInfo *) im->info;
1587 MInputContextInfo *ic_info;
1590 ic_info = (MInputContextInfo *) ic->info;
1593 MSTRUCT_CALLOC (ic_info, MERROR_IM);
1596 MLIST_INIT1 (ic_info, keys, 8);
1597 ic_info->markers = mplist ();
1598 ic_info->vars = mplist ();
1599 ic_info->preedit_saved = mtext ();
1600 if (im_info->externals)
1602 MPlist *func_args = mplist (), *plist;
1604 mplist_add (func_args, Mt, ic);
1605 MPLIST_DO (plist, im_info->externals)
1607 MIMExternalModule *external = MPLIST_VAL (plist);
1608 MIMExternalFunc func
1609 = (MIMExternalFunc) mplist_get (external->func_list, Minit);
1614 M17N_OBJECT_UNREF (func_args);
1621 destroy_ic (MInputContext *ic)
1623 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1624 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
1626 if (im_info->externals)
1628 MPlist *func_args = mplist (), *plist;
1630 mplist_add (func_args, Mt, ic);
1631 MPLIST_DO (plist, im_info->externals)
1633 MIMExternalModule *external = MPLIST_VAL (plist);
1634 MIMExternalFunc func
1635 = (MIMExternalFunc) mplist_get (external->func_list, Mfini);
1640 M17N_OBJECT_UNREF (func_args);
1642 MLIST_FREE1 (ic_info, keys);
1643 M17N_OBJECT_UNREF (ic_info->preedit_saved);
1644 M17N_OBJECT_UNREF (ic_info->markers);
1645 M17N_OBJECT_UNREF (ic_info->vars);
1650 /** Handle the input key KEY in the current state and map of IC->info.
1651 If KEY is handled but no text is produced, return 0, otherwise
1657 filter (MInputContext *ic, MSymbol key, void *arg)
1659 MInputMethodInfo *im_info = (MInputMethodInfo *) ic->im->info;
1660 MInputContextInfo *ic_info = (MInputContextInfo *) ic->info;
1663 mtext_reset (ic->produced);
1664 ic->status_changed = ic->preedit_changed = ic->candidates_changed = 0;
1665 MLIST_APPEND1 (ic_info, keys, key, MERROR_IM);
1666 ic_info->key_unhandled = 0;
1668 if (handle_key (ic) < 0)
1670 /* KEY was not handled. Reset the status and break the
1673 /* This forces returning 1. */
1674 ic_info->key_unhandled = 1;
1681 ic_info->key_unhandled = 1;
1684 /* Break the loop if all keys were handled. */
1685 } while (ic_info->key_head < ic_info->used);
1687 /* If the current map is the root of the initial state, we should
1688 produce any preedit text in ic->produced. */
1689 if (ic_info->map == ((MIMState *) MPLIST_VAL (im_info->states))->map
1690 && mtext_nchars (ic->preedit) > 0)
1691 shift_state (ic, ((MIMState *) MPLIST_VAL (im_info->states))->name);
1693 if (mtext_nchars (ic->produced) > 0)
1695 MSymbol lang = msymbol_get (ic->im->language, Mlanguage);
1698 mtext_put_prop (ic->produced, 0, mtext_nchars (ic->produced),
1699 Mlanguage, ic->im->language);
1702 return (! ic_info->key_unhandled && mtext_nchars (ic->produced) == 0);
1706 /** Return 1 if the last event or key was not handled, otherwise
1709 There is no need of looking up because ic->produced should already
1710 contain the produced text (if any).
1715 lookup (MInputContext *ic, MSymbol key, void *arg, MText *mt)
1717 mtext_cat (mt, ic->produced);
1718 mtext_reset (ic->produced);
1719 return (((MInputContextInfo *) ic->info)->key_unhandled ? -1 : 0);
1722 /* Support functions for mdebug_dump_im. */
1725 dump_im_map (MPlist *map_list, int indent)
1728 MSymbol key = MPLIST_KEY (map_list);
1729 MIMMap *map = (MIMMap *) MPLIST_VAL (map_list);
1731 prefix = (char *) alloca (indent + 1);
1732 memset (prefix, 32, indent);
1733 prefix[indent] = '\0';
1735 fprintf (stderr, "(\"%s\" ", msymbol_name (key));
1736 if (map->map_actions)
1737 mdebug_dump_plist (map->map_actions, indent + 2);
1740 MPLIST_DO (map_list, map->submaps)
1742 fprintf (stderr, "\n%s ", prefix);
1743 dump_im_map (map_list, indent + 2);
1746 if (map->branch_actions)
1748 fprintf (stderr, "\n%s (branch\n%s ", prefix, prefix);
1749 mdebug_dump_plist (map->branch_actions, indent + 4);
1750 fprintf (stderr, ")");
1752 fprintf (stderr, ")");
1757 dump_im_state (MIMState *state, int indent)
1762 prefix = (char *) alloca (indent + 1);
1763 memset (prefix, 32, indent);
1764 prefix[indent] = '\0';
1766 fprintf (stderr, "(%s", msymbol_name (state->name));
1767 if (state->map->submaps)
1769 MPLIST_DO (map_list, state->map->submaps)
1771 fprintf (stderr, "\n%s ", prefix);
1772 dump_im_map (map_list, indent + 2);
1775 fprintf (stderr, ")");
1784 = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
1785 "BackSpace", "Tab", "Linefeed", "Clear", NULL, "Return", NULL, NULL,
1786 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
1787 NULL, NULL, NULL, "Escape", NULL, NULL, NULL, NULL };
1788 char buf[6], buf2[256];
1791 Minput_method = msymbol ("input-method");
1792 Minput_driver = msymbol ("input-driver");
1793 Mtitle = msymbol ("title");
1794 Mmacro = msymbol ("macro");
1795 Mmodule = msymbol ("module");
1796 Mmap = msymbol ("map");
1797 Mstate = msymbol ("state");
1798 Minsert = msymbol ("insert");
1799 Mdelete = msymbol ("delete");
1800 Mmove = msymbol ("move");
1801 Mmark = msymbol ("mark");
1802 Mpushback = msymbol ("pushback");
1803 Mundo = msymbol ("undo");
1804 Mcall = msymbol ("call");
1805 Mshift = msymbol ("shift");
1806 Mselect = msymbol ("select");
1807 Mshow = msymbol ("show");
1808 Mhide = msymbol ("hide");
1809 Mset = msymbol ("set");
1810 Madd = msymbol ("add");
1811 Msub = msymbol ("sub");
1812 Mmul = msymbol ("mul");
1813 Mdiv = msymbol ("div");
1814 Mequal = msymbol ("=");
1815 Mless = msymbol ("<");
1816 Mgreater = msymbol (">");
1818 Minput_preedit_start = msymbol ("input-preedit-start");
1819 Minput_preedit_done = msymbol ("input-preedit-done");
1820 Minput_preedit_draw = msymbol ("input-preedit-draw");
1821 Minput_status_start = msymbol ("input-status-start");
1822 Minput_status_done = msymbol ("input-status-done");
1823 Minput_status_draw = msymbol ("input-status-draw");
1824 Minput_candidates_start = msymbol ("input-candidates-start");
1825 Minput_candidates_done = msymbol ("input-candidates-done");
1826 Minput_candidates_draw = msymbol ("input-candidates-draw");
1827 Minput_set_spot = msymbol ("input-set-spot");
1828 Minput_toggle = msymbol ("input-toggle");
1830 Mcandidate_list = msymbol_as_managing_key (" candidate-list");
1831 Mcandidate_index = msymbol (" candidate-index");
1833 Minit = msymbol ("init");
1834 Mfini = msymbol ("fini");
1836 M_key_alias = msymbol (" key-alias");
1841 for (i = 0, buf[2] = '@'; i < ' '; i++, buf[2]++)
1843 one_char_symbol[i] = msymbol (buf);
1845 msymbol_put (one_char_symbol[i], M_key_alias, msymbol (key_names[i]));
1847 for (buf[2] = i; i < 127; i++, buf[2]++)
1848 one_char_symbol[i] = msymbol (buf + 2);
1849 one_char_symbol[i++] = msymbol ("Delete");
1855 for (buf[4] = '@'; i < 160; i++, buf[4]++)
1857 one_char_symbol[i] = msymbol (buf);
1858 if (key_names[i - 128])
1860 strcpy (buf2 + 2, key_names[i - 128]);
1861 msymbol_put (one_char_symbol[i], M_key_alias, msymbol (buf2));
1864 for (buf[4] = i - 128; i < 255; i++, buf[4]++)
1865 one_char_symbol[i] = msymbol (buf + 2);
1866 one_char_symbol[i] = msymbol ("M-Delete");
1868 minput_default_driver.open_im = open_im;
1869 minput_default_driver.close_im = close_im;
1870 minput_default_driver.create_ic = create_ic;
1871 minput_default_driver.destroy_ic = destroy_ic;
1872 minput_default_driver.filter = filter;
1873 minput_default_driver.lookup = lookup;
1874 minput_default_driver.callback_list = NULL;
1875 minput_driver = &minput_default_driver;
1882 if (minput_default_driver.callback_list)
1884 M17N_OBJECT_UNREF (minput_default_driver.callback_list);
1885 minput_default_driver.callback_list = NULL;
1887 if (minput_driver->callback_list)
1889 M17N_OBJECT_UNREF (minput_driver->callback_list);
1890 minput_driver->callback_list = NULL;
1895 minput__callback (MInputContext *ic, MSymbol command)
1897 if (ic->im->driver.callback_list)
1899 MInputCallbackFunc func
1900 = (MInputCallbackFunc) mplist_get (ic->im->driver.callback_list,
1904 (func) (ic, command);
1909 minput__char_to_key (int c)
1911 if (c < 0 || c >= 0x100)
1914 return one_char_symbol[c];
1918 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
1923 /*** @addtogroup m17nInputMethod */
1928 @name Variables: Predefined symbols for callback commands.
1930 These are the predefined symbols that are used as the @c COMMAND
1931 argument of callback functions of an input method driver (see
1932 #MInputDriver::callback_list ). */
1934 @name ÊÑ¿ô¡§ ¥³¡¼¥ë¥Ð¥Ã¥¯¥³¥Þ¥ó¥ÉÍÑÄêµÁºÑ¤ß¥·¥ó¥Ü¥ë.
1936 ÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤Î¥³¡¼¥ë¥Ð¥Ã¥¯´Ø¿ô¤Ë¤ª¤¤¤Æ @c COMMAND °ú¿ô¤È¤·
1937 ¤ÆÍѤ¤¤é¤ì¤ëÄêµÁºÑ¤ß¥·¥ó¥Ü¥ë (#MInputDriver::callback_list »²¾È)¡£
1942 MSymbol Minput_preedit_start;
1943 MSymbol Minput_preedit_done;
1944 MSymbol Minput_preedit_draw;
1945 MSymbol Minput_status_start;
1946 MSymbol Minput_status_done;
1947 MSymbol Minput_status_draw;
1948 MSymbol Minput_candidates_start;
1949 MSymbol Minput_candidates_done;
1950 MSymbol Minput_candidates_draw;
1951 MSymbol Minput_set_spot;
1952 MSymbol Minput_toggle;
1957 @brief The default driver for internal input methods.
1959 The variable #minput_default_driver is the default driver for
1960 internal input methods.
1962 The member MInputDriver::open_im () searches the m17n database for
1963 an input method that matches the tag \< #Minput_method, $LANGUAGE,
1964 $NAME\> and loads it.
1966 The member MInputDriver::callback_list () is @c NULL. Thus, it is
1967 programmers responsibility to set it to a plist of proper callback
1968 functions. Otherwise, no feedback information (e.g. preedit text)
1969 can be shown to users.
1971 The macro M17N_INIT () sets the variable #minput_driver to the
1972 pointer to this driver so that all internal input methods use it.
1974 Therefore, unless @c minput_driver is set differently, the driver
1975 dependent arguments $ARG of the functions whose name begin with
1976 "minput_" are all ignored. */
1979 @brief ÆâÉôÆþÎϥ᥽¥Ã¥ÉÍѥǥե©¥ë¥È¥É¥é¥¤¥Ð.
1981 ÆþÎϥɥ饤¥Ð #minput_default_driver ¤ÏÆâÉôÆþÎϥ᥽¥Ã¥ÉÍѤΥǥե©¥ë
1982 ¥È¤Î¥É¥é¥¤¥Ð¤Ç¤¢¤ë¡£
1984 ¥á¥ó¥Ð MInputDriver::open_im () ¤Ï m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹Ã椫¤é¥¿¥°
1985 \< #Minput_method, $LANGUAGE, $NAME\> ¤Ë¹çÃפ¹¤ëÆþÎϥ᥽¥Ã¥É¤òõ¤·¡¢
1988 ¥á¥ó¥Ð MInputDriver::callback_list () ¤Ï @c NULL ¤Ê¤Î¤Ç¡¢¥×¥í¥°¥é
1989 ¥Þ¦¤ÇÀÕǤ¤ò»ý¤Ã¤Æ, ŬÀڤʥ³¡¼¥ë¥Ð¥Ã¥¯´Ø¿ô¤Î plist ¤ËÀßÄꤷ¤Ê¤¯¤Æ
1990 ¤Ï¤Ê¤é¤Ê¤¤¡£¤µ¤â¤Ê¤¤¤È¡¢preedit ¥Æ¥¥¹¥È¤Ê¤É¤Î¥Õ¥£¡¼¥É¥Ð¥Ã¥¯¾ðÊó¤¬
1991 ¥æ¡¼¥¶¤Ëɽ¼¨¤µ¤ì¤Ê¤¤¡£
1993 ¥Þ¥¯¥í M17N_INIT () ¤ÏÊÑ¿ô #minput_driver ¤ò¤³¤Î¥É¥é¥¤¥Ð¤Ø¤Î¥Ý¥¤¥ó
1994 ¥¿¤ËÀßÄꤷ¡¢Á´¤Æ¤ÎÆâÉôÆþÎϥ᥽¥Ã¥É¤¬¤³¤Î¥É¥é¥¤¥Ð¤ò»È¤¦¤è¤¦¤Ë¤¹¤ë¡£
1996 ¤·¤¿¤¬¤Ã¤Æ¡¢@c minput_driver ¤¬¥Ç¥Õ¥©¥ë¥ÈÃͤΤޤޤǤ¢¤ì¤Ð¡¢minput_
1997 ¤Ç»Ï¤Þ¤ë´Ø¿ô¤Î¥É¥é¥¤¥Ð¤Ë°Í¸¤¹¤ë°ú¿ô $ARG ¤Ï¤¹¤Ù¤Æ̵»ë¤µ¤ì¤ë¡£ */
1999 MInputDriver minput_default_driver;
2003 @brief The driver for internal input methods.
2005 The variable #minput_driver is a pointer to the input method
2006 driver that is used by internal input methods. The macro
2007 M17N_INIT () initializes it to a pointer to #minput_default_driver
2008 (if <m17n.h> is included) or to #minput_gui_driver (if
2009 <m17n-gui.h> is included). */
2011 @brief ÆâÉôÆþÎϥ᥽¥Ã¥ÉÍѥɥ饤¥Ð.
2013 ÊÑ¿ô #minput_driver ¤ÏÆâÉôÆþÎϥ᥽¥Ã¥É¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤Æ¤¤¤ëÆþÎÏ¥á
2014 ¥½¥Ã¥É¥É¥é¥¤¥Ð¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£¥Þ¥¯¥íM17N_INIT () ¤Ï¤³¤Î¥Ý¥¤¥ó
2015 ¥¿¤ò #minput_default_driver (<m17n.h> ¤¬´Þ¤Þ¤ì¤ë»þ) ¤Þ¤¿¤Ï
2016 #minput_gui_driver ( <m17n-gui.h> ¤¬´Þ¤Þ¤ì¤ë»þ) ¤Ë½é´ü²½¤¹¤ë¡£ */
2018 MInputDriver *minput_driver;
2020 MSymbol Minput_driver;
2025 @brief Open an input method.
2027 The minput_open_im () function opens an input method that matches
2028 language $LANGUAGE and name $NAME, and returns a pointer to the
2029 input method object newly allocated.
2031 This function at first decides an driver for the input method as
2034 If $LANGUAGE is not #Mnil, the driver pointed by the variable
2035 #minput_driver is used.
2037 If $LANGUAGE is #Mnil and $NAME has #Minput_driver property, the
2038 driver pointed to by the property value is used to open the input
2039 method. If $NAME has no such property, @c NULL is returned.
2041 Then, the member MInputDriver::open_im () of the driver is
2044 $ARG is set in the member @c arg of the structure MInputMethod so
2045 that the driver can refer to it. */
2048 @brief ÆþÎϥ᥽¥Ã¥É¤ò¥ª¡¼¥×¥ó¤¹¤ë.
2050 ´Ø¿ô minput_open_im () ¤Ï¸À¸ì $LANGUAGE ¤È̾Á° $NAME ¤Ë¹çÃפ¹¤ëÆþ
2051 Îϥ᥽¥Ã¥É¤ò¥ª¡¼¥×¥ó¤·¡¢¿·¤¿¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿ÆþÎϥ᥽¥Ã¥É¥ª¥Ö¥¸¥§¥¯
2052 ¥È¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
2054 ¤³¤Î´Ø¿ô¤Ï¡¢¤Þ¤ºÆþÎϥ᥽¥Ã¥ÉÍѤΥɥ饤¥Ð¤ò°Ê²¼¤Î¤è¤¦¤Ë¤·¤Æ·èÄꤹ¤ë¡£
2056 $LANGUAGE ¤¬ #Mnil ¤Ç¤Ê¤±¤ì¤Ð¡¢ÊÑ¿ô #minput_driver ¤Ç»Ø¤µ¤ì¤Æ¤¤¤ë
2059 $LANGUAGE ¤¬ #Mnil ¤Ç¤¢¤ê¡¢$NAME ¤¬ #Minput_driver ¥×¥í¥Ñ¥Æ¥£¤ò»ý
2060 ¤Ä¾ì¹ç¤Ë¤Ï¡¢¤½¤Î¥×¥í¥Ñ¥Æ¥£¤ÎÃͤǻؤµ¤ì¤Æ¤¤¤ëÆþÎϥɥ饤¥Ð¤òÍѤ¤¤ÆÆþ
2061 Îϥ᥽¥Ã¥É¤ò¥ª¡¼¥×¥ó¤¹¤ë¡£$NAME ¤Ë¤½¤Î¤è¤¦¤Ê¥×¥í¥Ñ¥Æ¥£¤¬Ìµ¤«¤Ã¤¿¾ì
2062 ¹ç¤Ï @c NULL ¤òÊÖ¤¹¡£
2064 ¼¡¤¤¤Ç¡¢¥É¥é¥¤¥Ð¤Î¥á¥ó¥Ð MInputDriver::open_im () ¤¬¸Æ¤Ð¤ì¤ë¡£
2066 $ARG ¤Ï¡¢¥É¥é¥¤¥Ð¤¬»²¾È¤Ç¤¤ë¤è¤¦¤Ë¡¢¹½Â¤ÂÎ MInputMethod ¤Î¥á¥ó¥Ð
2067 @c arg ¤ËÀßÄꤵ¤ì¤ë¡£
2069 @latexonly \IPAlabel{minput_open} @endlatexonly
2074 minput_open_im (MSymbol language, MSymbol name, void *arg)
2077 MInputDriver *driver;
2080 driver = minput_driver;
2083 driver = (MInputDriver *) msymbol_get (name, Minput_driver);
2085 MERROR (MERROR_IM, NULL);
2088 MSTRUCT_CALLOC (im, MERROR_IM);
2089 im->language = language;
2092 im->driver = *driver;
2093 if ((*im->driver.open_im) (im) < 0)
2104 @brief Close an input method.
2106 The minput_close_im () function closes the input method $IM, which
2107 must have been created by minput_open_im (). */
2110 @brief ÆþÎϥ᥽¥Ã¥É¤ò¥¯¥í¡¼¥º¤¹¤ë.
2112 ´Ø¿ô minput_close_im () ¤Ï¡¢ÆþÎϥ᥽¥Ã¥É $IM ¤ò¥¯¥í¡¼¥º¤¹¤ë¡£¤³¤Î
2113 ÆþÎϥ᥽¥Ã¥É $IM ¤Ï minput_open_im () ¤Ë¤è¤Ã¤Æºî¤é¤ì¤¿¤â¤Î¤Ç¤Ê¤±¤ì
2117 minput_close_im (MInputMethod *im)
2119 (*im->driver.close_im) (im);
2126 @brief Create an input context.
2128 The minput_create_ic () function creates an input context object
2129 associated with input method $IM, and calls callback functions
2130 corresponding to #Minput_preedit_start, #Minput_status_start, and
2131 #Minput_status_draw in this order.
2135 If an input context is successfully created, minput_create_ic ()
2136 returns a pointer to it. Otherwise it returns @c NULL. */
2139 @brief ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤òÀ¸À®¤¹¤ë.
2141 ´Ø¿ô minput_create_ic () ¤ÏÆþÎϥ᥽¥Ã¥É $IM ¤ËÂбþ¤¹¤ëÆþÎÏ¥³¥ó¥Æ¥¯
2142 ¥¹¥È¥ª¥Ö¥¸¥§¥¯¥È¤òÀ¸À®¤·¡¢ #Minput_preedit_start,
2143 #Minput_status_start, #Minput_status_draw ¤ËÂбþ¤¹¤ë¥³¡¼¥ë¥Ð¥Ã¥¯´Ø
2148 ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤¬À¸À®¤µ¤ì¤¿¾ì¹ç¡¢minput_create_ic () ¤Ï¤½¤ÎÆþÎÏ¥³
2149 ¥ó¥Æ¥¯¥¹¥È¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£¼ºÇÔ¤·¤¿¾ì¹ç¤Ï @c NULL ¤òÊÖ¤¹¡£
2153 minput_create_ic (MInputMethod *im, void *arg)
2157 MSTRUCT_CALLOC (ic, MERROR_IM);
2160 ic->preedit = mtext ();
2161 ic->candidate_list = NULL;
2162 ic->produced = mtext ();
2163 ic->spot.x = ic->spot.y = 0;
2165 ic->plist = mplist ();
2166 if ((*im->driver.create_ic) (ic) < 0)
2168 M17N_OBJECT_UNREF (ic->preedit);
2169 M17N_OBJECT_UNREF (ic->produced);
2170 M17N_OBJECT_UNREF (ic->plist);
2175 if (im->driver.callback_list)
2177 minput__callback (ic, Minput_preedit_start);
2178 minput__callback (ic, Minput_status_start);
2179 minput__callback (ic, Minput_status_draw);
2188 @brief Destroy an input context.
2190 The minput_destroy_ic () function destroys the input context $IC,
2191 which must have been created by minput_create_ic (). It calls
2192 callback functions corresponding to #Minput_preedit_done,
2193 #Minput_status_done, and #Minput_candidates_done in this order. */
2196 @brief ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤òÇ˲õ¤¹¤ë.
2198 ´Ø¿ô minput_destroy_ic () ¤Ï¡¢ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È $IC ¤òÇ˲õ¤¹¤ë¡£¤³
2199 ¤ÎÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤Ï minput_create_ic () ¤Ë¤è¤Ã¤Æºî¤é¤ì¤¿¤â¤Î¤Ç¤Ê
2200 ¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¤³¤Î´Ø¿ô¤Ï#Minput_preedit_done,
2201 #Minput_status_done, #Minput_candidates_done ¤ËÂбþ¤¹¤ë¥³¡¼¥ë¥Ð¥Ã¥¯´Ø¿ô¤ò
2206 minput_destroy_ic (MInputContext *ic)
2208 if (ic->im->driver.callback_list)
2210 minput__callback (ic, Minput_preedit_done);
2211 minput__callback (ic, Minput_status_done);
2212 minput__callback (ic, Minput_candidates_done);
2214 (*ic->im->driver.destroy_ic) (ic);
2215 M17N_OBJECT_UNREF (ic->preedit);
2216 M17N_OBJECT_UNREF (ic->produced);
2217 M17N_OBJECT_UNREF (ic->plist);
2224 @brief Filter an input key.
2226 The minput_filter () function filters input key $KEY according to
2227 input context $IC, and calls callback functions corresponding to
2228 #Minput_preedit_draw, #Minput_status_draw, and
2229 #Minput_candidates_draw if the preedit text, the status, and the
2230 current candidate are changed respectively.
2233 If $KEY is filtered out, this function returns 1. In that case,
2234 the caller should discard the key. Otherwise, it returns 0, and
2235 the caller should handle the key, for instance, by calling the
2236 function minput_lookup () with the same key. */
2239 @brief ÆþÎÏ¥¡¼¤ò¥Õ¥£¥ë¥¿¤¹¤ë.
2241 ´Ø¿ô minput_filter () ¤ÏÆþÎÏ¥¡¼ $KEY ¤òÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È $IC ¤Ë±þ
2242 ¤¸¤Æ¥Õ¥£¥ë¥¿¤·¡¢preedit ¥Æ¥¥¹¥È¡¢¥¹¥Æ¡¼¥¿¥¹¡¢¸½»þÅÀ¤Ç¤Î¸õÊ䤬ÊѲ½
2243 ¤·¤¿ºÝ¤Ë¤Ï¤½¤ì¤¾¤ì#Minput_preedit_draw, #Minput_status_draw,
2244 #Minput_candidates_draw ¤ËÂбþ¤¹¤ë¥³¡¼¥ë¥Ð¥Ã¥¯´Ø¿ô¤ò¸Æ¤Ö¡£
2247 $KEY ¤¬¥Õ¥£¥ë¥¿¤µ¤ì¤ì¤Ð¡¢¤³¤Î´Ø¿ô¤Ï 1 ¤òÊÖ¤¹¡£¤³¤Î¾ì¹ç¸Æ¤Ó
2248 ½Ð¤·Â¦¤Ï¤³¤Î¥¡¼¤ò¼Î¤Æ¤ë¤Ù¤¤Ç¤¢¤ë¡£¤½¤¦¤Ç¤Ê¤±¤ì¤Ð 0 ¤òÊÖ¤·¡¢¸Æ¤Ó
2249 ½Ð¤·Â¦¤Ï¡¢¤¿¤È¤¨¤ÐƱ¤¸¥¡¼¤Ç´Ø¿ô minput_lookup () ¤ò¸Æ¤Ö¤Ê¤É¤·¤Æ¡¢
2250 ¤³¤Î¥¡¼¤ò½èÍý¤¹¤ë¡£
2252 @latexonly \IPAlabel{minput_filter} @endlatexonly
2256 minput_filter (MInputContext *ic, MSymbol key, void *arg)
2263 ret = (*ic->im->driver.filter) (ic, key, arg);
2265 if (ic->im->driver.callback_list)
2267 if (ic->preedit_changed)
2268 minput__callback (ic, Minput_preedit_draw);
2269 if (ic->status_changed)
2270 minput__callback (ic, Minput_status_draw);
2271 if (ic->candidates_changed)
2272 minput__callback (ic, Minput_candidates_draw);
2273 ic->preedit_changed = ic->status_changed = ic->candidates_changed = 0;
2282 @brief Lookup a text produced in the input context.
2284 The minput_lookup () function looks up a text in the input context
2285 $IC. $KEY must be the same one provided to the previous call of
2288 If a text was produced by the input method, it is concatenated
2291 This function calls #MInputDriver::lookup .
2294 If $KEY was correctly handled by the input method, this function
2295 returns 0. Otherwise, returns -1, even in that case, some text
2296 may be produced in $MT. */
2299 @brief ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥ÈÃæ¤Î¥Æ¥¥¹¥È¤Î¸¡º÷.
2301 ´Ø¿ô minput_lookup () ¤ÏÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È $IC Ãæ¤Î¥Æ¥¥¹¥È¤ò¸¡º÷¤¹
2302 ¤ë¡£$KEY ¤Ï´Ø¿ôminput_filter () ¤Ø¤ÎľÁ°¤Î¸Æ¤Ó½Ð¤·¤ËÍѤ¤¤é¤ì¤¿¤â¤Î
2303 ¤ÈƱ¤¸¤Ç¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
2305 ¥Æ¥¥¹¥È¤¬ÆþÎϥ᥽¥Ã¥É¤Ë¤è¤Ã¤ÆÀ¸À®¤µ¤ì¤Æ¤¤¤ì¤Ð¡¢¥Æ¥¥¹¥È¤Ï M-text
2308 ¤³¤Î´Ø¿ô¤Ï¡¢#MInputDriver::lookup ¤ò¸Æ¤Ö¡£
2311 $KEY ¤¬ÆþÎϥ᥽¥Ã¥É¤Ë¤è¤Ã¤ÆŬÀڤ˽èÍý¤Ç¤¤ì¤Ð¡¢¤³¤Î´Ø¿ô¤Ï 0 ¤òÊÖ¤¹¡£
2312 ¤½¤¦¤Ç¤Ê¤±¤ì¤Ð -1 ¤òÊÖ¤¹¡£¤³¤Î¾ì¹ç¤Ç¤â $MT ¤Ë²¿¤é¤«¤Î¥Æ¥¥¹¥È¤¬À¸
2313 À®¤µ¤ì¤Æ¤¤¤ë¤³¤È¤¬¤¢¤ë¡£
2315 @latexonly \IPAlabel{minput_lookup} @endlatexonly */
2318 minput_lookup (MInputContext *ic, MSymbol key, void *arg, MText *mt)
2320 return (ic ? (*ic->im->driver.lookup) (ic, key, arg, mt) : -1);
2325 @brief Set the spot of the input context.
2327 The minput_set_spot () function set the spot of input context $IC
2328 to coordinate ($X, $Y ) with the height $ASCENT and $DESCENT .
2329 The semantics of these values depend on the input method driver.
2330 $FONTSIZE specfies the fontsize of a preedit text in 1/10 point.
2332 For instance, an driver designed to work in CUI environment may
2333 use $X and $Y as column and row numbers, and ignore $ASCENT and
2334 $DESCENT . An driver designed to work on a window system may
2335 treat $X and $Y as pixel offsets relative to the origin of the
2336 client window, and treat $ASCENT and $DESCENT as ascent and
2337 descent pixels of a line at ($X . $Y ).
2339 $MT and $POS is an M-text and a character position at the spot.
2340 $MT may be @c NULL, in which case, the input method cannot get
2341 information about the text around the spot. */
2344 @brief ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È¤Î¥¹¥Ý¥Ã¥È¤òÀßÄꤹ¤ë
2346 ´Ø¿ô minput_set_spot () ¤Ï¡¢ÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È $IC ¤Î¥¹¥Ý¥Ã¥È¤ò¡¢ºÂ
2347 ɸ ($X, $Y )¤Ë ¡¢¹â¤µ $ASCENT¡¢ $DESCENT ¤ÇÀßÄꤹ¤ë¡£ ¤³¤ì¤é¤ÎÃͤÎ
2348 °ÕÌ£¤ÏÆþÎϥ᥽¥Ã¥É¥É¥é¥¤¥Ð¤Ë°Í¸¤¹¤ë¡£$FONTSIZE ¤Ïpreedit ¥Æ¥¥¹¥È
2349 ¤Î¥Õ¥©¥ó¥È¥µ¥¤¥º¤ò 1/10 ¥Ý¥¤¥ó¥Èñ°Ì¤Ç»ØÄꤹ¤ë¡£
2351 ¤¿¤È¤¨¤Ð CUI ´Ä¶¤ÇÆ°ºî¤¹¤ë¥É¥é¥¤¥Ð¤Ï $X ¤È $Y ¤ò¤½¤ì¤¾¤ìÎó¤È¹Ô¤Î
2352 ÈÖ¹æ¤È¤·¤ÆÍѤ¤¡¢$ASCENT ¤È $DESCENT ¤ò̵»ë¤¹¤ë¤«¤â¤·¤ì¤Ê¤¤¡£ ¤Þ¤¿
2353 ¥¦¥£¥ó¥É¥¦¥·¥¹¥Æ¥àÍѤΥɥ饤¥Ð¤Ï $X ¤È $Y ¤ò¥¯¥é¥¤¥¢¥ó¥È¥¦¥£¥ó¥É¥¦
2354 ¤Î¸¶ÅÀ¤«¤é¤Î¥ª¥Õ¥»¥Ã¥È¤ò¥Ô¥¯¥»¥ëñ°Ì¤Çɽ¤·¤¿¤â¤Î¤È¤·¤Æ°·¤¤¡¢
2355 $ASCENT ¤È $DESCENT ¤ò ($X . $Y ) ¤ÎÎó¤Î¥¢¥»¥ó¥È¤È¥Ç¥£¥»¥ó¥È¤ò¥Ô¥¯
2356 ¥»¥ëñ°Ì¤Çɽ¤·¤¿¤â¤Î¤È¤·¤Æ°·¤¦¤«¤â¤·¤ì¤Ê¤¤¡£
2358 $MT ¤È $POS ¤Ï¤½¤Î¥¹¥Ý¥Ã¥È¤Î M-text ¤Èʸ»ú°ÌÃ֤Ǥ¢¤ë¡£$MT ¤Ï @c
2359 NULL ¤Ç¤â¤è¤¯¡¢¤½¤Î¾ì¹ç¤Ë¤ÏÆþÎϥ᥽¥Ã¥É¤Ï¥¹¥Ý¥Ã¥È¼þÊդΥƥ¥¹¥È¤Ë
2360 ´Ø¤¹¤ë¾ðÊó¤òÆÀ¤ë¤³¤È¤¬¤Ç¤¤Ê¤¤¡£
2364 minput_set_spot (MInputContext *ic, int x, int y,
2365 int ascent, int descent, int fontsize,
2370 ic->spot.ascent = ascent;
2371 ic->spot.descent = descent;
2372 ic->spot.fontsize = fontsize;
2375 if (ic->im->driver.callback_list)
2376 minput__callback (ic, Minput_set_spot);
2381 @brief Toggle input method.
2383 The minput_toggle () function toggles the input method associated
2384 with the input context $IC. */
2386 @brief ÆþÎϥ᥽¥Ã¥É¤òÀÚÂؤ¨¤ë.
2388 ´Ø¿ô minput_toggle () ¤ÏÆþÎÏ¥³¥ó¥Æ¥¯¥¹¥È $IC ¤ËÂбþÉÕ¤±¤é¤ì¤¿ÆþÎÏ
2389 ¥á¥½¥Ã¥É¤ò¥È¥°¥ë¤¹¤ë¡£
2393 minput_toggle (MInputContext *ic)
2395 if (ic->im->driver.callback_list)
2396 minput__callback (ic, Minput_toggle);
2397 ic->active = ! ic->active;
2403 /*** @addtogroup m17nDebug */
2409 @brief Dump an input method.
2411 The mdebug_dump_im () function prints the input method $IM in a
2412 human readable way to the stderr. $INDENT specifies how many
2413 columns to indent the lines but the first one.
2416 This function returns $IM. */
2418 @brief ÆþÎϥ᥽¥Ã¥É¤ò¥À¥ó¥×¤¹¤ë.
2420 ´Ø¿ô mdebug_dump_im () ¤ÏÆþÎϥ᥽¥Ã¥É $IM ¤ò stderr ¤Ë¿Í´Ö¤Ë²ÄÆɤÊ
2421 ·Á¤Ç°õºþ¤¹¤ë¡£$INDENT ¤Ï£²¹ÔÌܰʹߤΥ¤¥ó¥Ç¥ó¥È¤ò»ØÄꤹ¤ë¡£
2424 ¤³¤Î´Ø¿ô¤Ï $IM ¤òÊÖ¤¹¡£ */
2427 mdebug_dump_im (MInputMethod *im, int indent)
2429 MInputMethodInfo *im_info = (MInputMethodInfo *) im->info;
2432 prefix = (char *) alloca (indent + 1);
2433 memset (prefix, 32, indent);
2434 prefix[indent] = '\0';
2436 fprintf (stderr, "(input-method %s %s ", msymbol_name (im->language),
2437 msymbol_name (im->name));
2438 mdebug_dump_mtext (im_info->title, 0, 0);
2439 if (im->name != Mnil)
2443 MPLIST_DO (state, im_info->states)
2445 fprintf (stderr, "\n%s ", prefix);
2446 dump_im_state (MPLIST_VAL (state), indent + 2);
2449 fprintf (stderr, ")");