+/* Copyright (C) 2003, 2004
+ National Institute of Advanced Industrial Science and Technology (AIST)
+ Registration Number H15PRO112
+ See the end for copying conditions. */
+
+/***ja
+
+@page mdbFLT ¥Õ¥©¥ó¥È¥ì¥¤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë
+
+@section flt-description ÀâÌÀ
+
+ñ½ã¤Ê¥¹¥¯¥ê¥×¥È¤Î¾ì¹ç¡¢É½¼¨¥¨¥ó¥¸¥ó¤ÏÁªÂò¤·¤¿¥Õ¥©¥ó¥È¤Î¥¨¥ó¥³¡¼¥Ç¥£¥ó
+¥°¤Ë±þ¤¸¤Æʸ»ú¥³¡¼¥É¤ò¥°¥ê¥Õ¥³¡¼¥É¤Ë°ìʸ»ú¤º¤ÄÊÑ´¹¤¹¤ë¡£¤·¤«¤·¡¢Ê£»¨¤Ê
+¥ì¥¤¥¢¥¦¥È¤òÍ׵᤹¤ëʸ½ñ¡¢¤¿¤È¤¨¤Ð¥¿¥¤¤ä¥¤¥ó¥É·Ï¤Î¥¹¥¯¥ê¥×¥È¤Ê¤É¤Î¾ì¹ç¡¢
+£±ÂУ±¤ÎÊÑ´¹¤Ç¤ÏÉÔ½½Ê¬¤Ç¤¢¤ë¡£Ê£¿ô¤Îʸ»ú¤¬°ì¤Ä¤Î¥ê¥¬¥Á¥ã¤È¤·¤ÆÉÁ¤«¤ì¤¿¤ê¡¢
+£²¼¡¸µÅª¤Ë¤º¤é¤·¤¿°ÌÃÖ¤ËÉÁ¤«¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¥°¥ê¥Õ¤¬¤¢¤Ã¤¿¤ê¤¹¤ë¡£
+
+¤³¤Î¤è¤¦¤ÊÊ£»¨¤Ê¥¹¥¯¥ê¥×¥È¤ò½èÍý¤¹¤ë¤¿¤á¡¢m17n ¥é¥¤¥Ö¥é¥ê¤Ï¥Õ¥©¥ó¥È¥ì
+¥¤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë (û½Ì¤·¤Æ FLT ¤È¸Æ¤Ö¤³¤È¤Ë¤¹¤ë) ¤òÍѤ¤¤ë¡£FLT ¥É¥é¥¤
+¥Ð¤Ï FLT ¤ò²ò¼á¤·¡¢Ê¸»úÎó¤òɽ¼¨¥¨¥ó¥¸¥ó¤ËÅϤ¹¤³¤È¤Î¤Ç¤¤ë¥°¥ê¥ÕÎó¤ËÊÑ
+´¹¤¹¤ë¡£
+
+FLT ¤Ï OpenType Layout Table ¤Ë¸«¤é¤ì¤ë¾ðÊó (CMAP, GSUB, and GPOS) ¤Ë
+²Ã¤¨¤Æ¡¢Ê¸»úÎ󤫤é½ñµÁÇ (grapheme) ¥¯¥é¥¹¥¿¤òÃê½Ð¤·¤¿¤ê¡¢¥¯¥é¥¹¥¿Æâ¤Ç
+ʸ»ú¤òʤÙÊѤ¨¤¿¤ê¤¹¤ë¤¿¤á¤Î¾ðÊó¤ò»ý¤Ä¤³¤È¤¬¤Ç¤¤ë¡£
+
+FLT ¤Ï 1 ¤Ä°Ê¾å¤ÎÊÑ´¹¥¹¥Æ¡¼¥¸¤¬Â³¤¤¤¿¤â¤Î¤Ç¤¢¤ë¡£³Æ¥¹¥Æ¡¼¥¸¤Ç¥³¡¼¥ÉÎó
+¤ÏÊ̤Τâ¤Î¤ËÊÑ´¹¤µ¤ì¡¢¼¡¤Î¥¹¥Æ¡¼¥¸¤ËÆɤޤì¤ë¡£Îó¤ÎŤµ¤Ï¥¹¥Æ¡¼¥¸Ëè¤Ë°Û
+¤Ê¤ë¤³¤È¤¬¤¢¤ë¡£¥³¡¼¥ÉÎó¤Î³ÆÍ×ÁǤϰʲ¼¤ÎÀ°¿ôÃͤΰÀ¤ò»ý¤Ä¡£
+
+<ul>
+<li> ¥³¡¼¥É
+
+ÊÑ´¹¤ÎºÇ½é¤Î¥¹¥Æ¡¼¥¸¤Ç¤Ï¡¢¸µ¤Îʸ»úÎó¤Îʸ»ú¥³¡¼¥É¡£ºÇ¸å¤Î¥¹¥Æ¡¼¥¸¤Ç¤Ï¡¢
+ɽ¼¨¥¨¥ó¥¸¥ó¤ËÅϤµ¤ì¤ë¥°¥ê¥Õ¥³¡¼¥É¡£¤½¤ì°Ê³°¤Ç¤ÏÃæ´ÖŪ¤Ê¥°¥ê¥Õ¥³¡¼¥É¡£
+
+<li> ¥«¥Æ¥´¥ê
+
+¤½¤Î¥¹¥Æ¡¼¥¸¤Î @c CATEGORY-TABLE ¤ÇÄêµÁ¤µ¤ì¤¿¥«¥Æ¥´¥ê¡¼¥³¡¼¥É¡£
+
+<li> ·ë¹çµ¬Â§
+
+0 ¤Ç¤Ê¤±¤ì¤Ð¡¢¤³¤Î¡ÊÃæ´Ö¡Ë¥°¥ê¥Õ¤òÁ°¤Î¤â¤Î¤È¤É¤¦·ë¹ç¤¹¤ë¤«¤ò»ØÄꤹ¤ë¡£
+
+<li> º¸¥Ñ¥Ç¥£¥ó¥°¥Õ¥é¥°
+
+0 ¤Ç¤Ê¤±¤ì¤Ð¡¢É½¼¨´Ø¿ô¤Ë¤³¤Î¡ÊÃæ´Ö¡Ë¥°¥ê¥Õ¤ÎÁ°¤Ë¥¹¥Ú¡¼¥¹¤òÁÞÆþ¤·¤Æ¡¢Á°
+¤Î¥°¥ê¥Õ¤È½Å¤Ê¤é¤Ê¤¤¤è¤¦¤Ë¤¹¤ë¤è¤¦»Ø¼¨¤¹¤ë¡£
+
+<li> ±¦¥Ñ¥Ç¥£¥ó¥°¥Õ¥é¥°
+
+0 ¤Ç¤Ê¤±¤ì¤Ð¡¢É½¼¨´Ø¿ô¤Ë¤³¤Î¡ÊÃæ´Ö¡Ë¥°¥ê¥Õ¤Î¸å¤Ë¥¹¥Ú¡¼¥¹¤òÁÞÆþ¤·¤Æ¡¢¸å
+¤Î¥°¥ê¥Õ¤È½Å¤Ê¤é¤Ê¤¤¤è¤¦¤Ë¤¹¤ë¤è¤¦»Ø¼¨¤¹¤ë¡£
+
+</ul>
+
+¥ì¥¤¥¢¥¦¥È¥¨¥ó¥¸¥ó¤¬¥Æ¥¥¹¥È¤òÉÁ¤¯ºÝ¤Ë¤Ï¡¢¤Þ¤º¥Æ¥¥¹¥È¤Î³Æʸ»ú¤ËÂФ·¤Æ
+¤½¤ì¤¾¤ì¥Õ¥©¥ó¥È¤ÈFLT ¤ò·èÄꤹ¤ë¡£Æ±¤¸¥Õ¥©¥ó¥È¤È FLT ¤òÍѤ¤¤ëÉôʬʸ»ú
+Îó¤Ë´Ø¤·¤Æ¡¢¥ì¥¤¥¢¥¦¥È¥¨¥ó¥¸¥ó¤ÏÂбþ¤¹¤ëÃæ´ÖŪ¤Ê¥°¥ê¥Õ¤ÎÎó¤òÀ¸À®¤¹¤ë¡£
+Ãæ´ÖŪ¤Ê¥°¥ê¥Õ¥³¡¼¥É¤Î³ÆÍ×ÁǤϡ¢¥³¡¼¥É¤Î°À¤È¤·¤ÆÂбþ¤¹¤ëʸ»ú¥³¡¼¥É¡¢
+¾¤Î°À¤È¤·¤Æ 0 ¤ò»ý¤Ä¡£¤³¤ÎÎó¤ÏFLT ¤ÎºÇ½é¤Î¥¹¥Æ¡¼¥¸¤Ç¸½¹Ô¤Î @e ¥é¥ó
+(ÉôʬÎó) ¤È¤·¤Æ½èÍý¤µ¤ì¤ë¡£
+
+³Æ¥¹¥Æ¡¼¥¸¤Ï°Ê²¼¤Î¤è¤¦¤ËƯ¤¯¡£
+
+¤Þ¤º¤³¤Î¥¹¥Æ¡¼¥¸¤Ë @c CATEGORY-TABLE ¤¬¤¢¤ì¤Ð¡¢¸½¹Ô¤Î¥é¥ó¤Î¤¹¤Ù¤Æ¤Î¥°
+¥ê¥Õ¤Î¥«¥Æ¥´¥ê¤¬¹¹¿·¤µ¤ì¤ë¡£¥«¥Æ¥´¥ê¤Î̵¤¤¥°¥ê¥Õ¤¬¤¢¤ì¤Ð¡¢¥é¥ó¤Ï¤½¤Î¥°
+¥ê¥Õ¤ÎÁ°¤Ç½ª¤ë¡£
+
+¼¡¤Ë¤³¤Î¥¹¥Æ¡¼¥¸¤Î¥³¡¼¥É¥ª¥Õ¥»¥Ã¥È¡¢·ë¹çµ¬Â§¡¢º¸¥Ñ¥Ç¥£¥ó¥°¥Õ¥é¥°¤¬ 0
+¤Ë½é´ü²½¤µ¤ì¤ë¡£
+
+¼¡¤¤¤Ç¡¢¤³¤Î¥¹¥Æ¡¼¥¸¤ÎºÇ½é¤ÎÊÑ´¹µ¬Â§¤¬¸½¹Ô¤Î¥é¥ó¤ËŬÍѤµ¤ì¤ë¡£
+
+ºÇ¸å¤Ë¸½¹Ô¤Î¥é¥ó¤Ï¿·¤·¤¯ºî¤é¤ì¤¿¡ÊÃæ´Ö¡Ë¥°¥ê¥ÕÎó¤ËÃÖ¤´¹¤¨¤é¤ì¤ë¡£
+
+@section flt-syntax ʸˡ¤È°ÕÌ£
+
+m17n ¥é¥¤¥Ö¥é¥ê ¤Ï m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤«¤é¥¿¥° \<font, layouter,
+FLT-NAME\> ¤òÍѤ¤¤Æ FLT ¤ò¥í¡¼¥É¤¹¤ë¡£FLT ¤Î¥Ç¡¼¥¿¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤Ï°Ê²¼¤ÎÄ̤ꡧ
+
+@verbatim
+FONT-LAYOUT-TABLE ::= STAGE0 STAGE *
+
+STAGE0 ::= CATEGORY-TABLE GENERATOR
+
+STAGE ::= CATEGORY-TABLE ? GENERATOR
+
+CATEGORY-TABLE ::= '(' 'category' CATEGORY-SPEC + ')'
+
+CATEGORY-SPEC ::= '(' CODE CATEGORY ')'
+ | '(' CODE CODE CATEGORY ')'
+
+CODE ::= INTEGER
+
+CATEGORY ::= INTEGER
+@endverbatim
+
+@c CATEGORY-SPEC ¤ÎÄêµÁÃæ¤Ç¡¢ @c CODE ¤Ï¥°¥ê¥Õ¥³¡¼¥É @c CATEGORY ¤ÏÂç
+ʸ»ú¤¢¤ë¤¤¤Ï¾®Ê¸»ú¤Î ASCII code¡¢¤¹¤Ê¤ï¤Á 'A', ... 'Z', 'a', .. 'z' ¤Î
+¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£
+
+@c CATEGORY-SPEC ¤ÎºÇ½é¤Î·Á¼°¤Ï¡¢@c CATEGORY ¤ò¥³¡¼¥É @c CODE ¤ò»ý¤Ä¥°
+¥ê¥Õ¤Ë³ä¤êÅö¤Æ¡¢Æó¤ÄÌܤηÁ¼°¤Ï @c CATEGORY ¤òÆó¤Ä¤Î @c CODE ¤Î´Ö¤Î¥³¡¼
+¥É¤ò»ý¤Ä¥°¥ê¥Õ¤Ë³ä¤êÅö¤Æ¤ë¡£
+
+@verbatim
+GENERATOR ::= '(' 'generator' RULE MACRO-DEF * ')'
+
+RULE ::= REGEXP-BLOCK | MATCH-BLOCK | SUBST-BLOCK | COND-BLOCK
+ | DIRECT-CODE | COMBINING-SPEC | OTF-SPEC
+ | PREDEFINED-RULE | MACRO-NAME
+
+MACOR-DEF ::= '(' MACRO-NAME RULE + ')'
+@endverbatim
+
+³Æ @c RULE ¤Ï¡¢¾ÃÈñ¤¹¤ë¥°¥ê¥Õ¤ÈÀ¸À®¤¹¤ë¥°¥ê¥Õ¤ò»ØÄꤹ¤ë¡£¡Ö¾ÃÈñ¤µ¤ì¤¿¡×
+¥°¥ê¥Õ¤Ï¸½¹Ô¤Î¥é¥ó¤«¤é¼è¤ê½ü¤«¤ì¤ë¡£¥ë¡¼¥ë¤Ï¾õ¶·¤Ë¤è¤Ã¤Æ¤Ï¼ºÇÔ¤¹¤ë¡£ÌÀ
+¼¨Åª¤Ë¼ºÇԤȽñ¤«¤ì¤Æ¤¤¤ë¾ì¹ç¤ò¤Î¤¾¤¡¢À®¸ù¤È¤ß¤Ê¤¹¡£
+
+@verbatim
+DIRECT-CODE ::= INTEGER
+@endverbatim
+
+¤³¤Î¥ë¡¼¥ë¤Ï¥°¥ê¥Õ¤ò¾ÃÈñ¤»¤º¡¢°Ê²¼¤Î°À¤ò»ý¤Ä¥°¥ê¥Õ¤òÀ¸À®¤¹¤ë¡£
+
+<ul>
+<li> ¥³¡¼¥É : @c INTEGER ¡Ü ¥Ç¥Õ¥©¥ë¥È¤Î¥³¡¼¥É¥ª¥Õ¥»¥Ã¥Èplus the default code-offset
+<li> ·ë¹çµ¬Â§ : ¥Ç¥Õ¥©¥ë¥ÈÃÍ
+<li> º¸¥Ñ¥Ç¥¤¥ó¥°¥Õ¥é¥° : ¥Ç¥Õ¥©¥ë¥ÈÃÍ
+<li> ±¦¥Ñ¥Ç¥¤¥ó¥°¥Õ¥é¥° : 0
+</ul>
+
+¥°¥ê¥ÕÀ¸À®¸å¡¢¥Ç¥Õ¥©¥ë¥È¤Î¥³¡¼¥É¥ª¥Õ¥»¥Ã¥È¡¢·ë¹çµ¬Â§, º¸¥Ñ¥Ç¥£¥ó¥°¥Õ¥é
+¥° ¤Ï¤¹¤Ù¤Æ 0 ¤Ë¥ê¥»¥Ã¥È¤µ¤ì¤ë¡£
+
+@verbatim
+PREDEFINED-RULE ::= '=' | '*' | '<' | '>' | '|' | '[' | ']'
+@endverbatim
+
+¤³¤ì¤é¤Ï°Ê²¼¤Î¤è¤¦¤ËƯ¤¯¡£
+
+<ul>
+<li> @c =
+
+¸½¹Ô¤Î¥é¥ó¤ÎºÇ½é¤Î¥°¥ê¥Õ¤ò¾ÃÈñ¤·¡¢Æ±¤¸¥°¥ê¥Õ¤òÀ¸À®¤¹¤ë¡£¸½¹Ô¤Î¥é¥ó¤¬¶õ
+¤Ê¤é¤Ð¼ºÇÔ¤¹¤ë¡£
+
+<li> @c *
+
+Á°¤Î¥ë¡¼¥ë¤ò·«¤êÊÖ¤·¼Â¹Ô¤¹¤ë¡£Á°¤Î¥ë¡¼¥ë¤¬¼ºÇÔ¤¹¤ì¤Ð¡¢²¿¤â¤»¤º¼ºÇÔ¤¹¤ë¡£
+
+<li> @c @<
+
+½ñµÁÇ¥¯¥é¥¹¥¿¤Î»Ï¤á¤ò¼¨¤¹¡£
+
+<li> @c @>
+
+½ñµÁÇ¥¯¥é¥¹¥¿¤Î½ª¤ê¤ò¼¨¤¹¡£
+
+<li> @c @[
+
+¤³¤Îµ¬Â§¤Ï¥Ç¥Õ¥©¥ë¥È¤Îº¸¥Ñ¥Ç¥£¥ó¥°¥Õ¥é¥°¤ò 1 ¤Ë¤¹¤ë¡£¥°¥ê¥Õ¤Î¾ÃÈñ¤äÀ¸
+À®¤Ï¤·¤Ê¤¤¡£
+
+<li> @c @]
+
+¤³¤Îµ¬Â§¤ÏºÇ¶áÀ¸À®¤µ¤ì¤¿¥°¥ê¥Õ¤Î±¦¥Ñ¥Ç¥£¥ó¥°¥Õ¥é¥°¤ò 1 ¤Ë¤¹¤ë¡£¥°¥ê¥Õ
+¤Î¾ÃÈñ¤äÀ¸À®¤Ï¤·¤Ê¤¤¡£
+
+<li> @c |
+
+¥°¥ê¥Õ¤ò¾ÃÈñ¤»¤º¡¢¥«¥Æ¥´¥ê¤¬ ' ' ¤Ç¾¤Î°À¤¬ 0 ¤Ç¤¢¤ëÆÃÊ̤ʥ°¥ê¥Õ¤òÀ¸
+À®¤¹¤ë¡£¤³¤Îµ¬Â§¤À¤±¤¬¤³¤ÎÆÃÊ̤ʥ°¥ê¥Õ¤òÀ¸À®¤¹¤ë¡£
+
+</ul>
+
+@verbatim
+REGEXP-BLOCK ::= '(' REGEXP RULE * ')'
+
+REGEXP ::= MTEXT
+@endverbatim
+
+@c MTEXT ¤Ï¸½¹Ô¤Î¥é¥ó¤Î¥«¥Æ¥´¥êÎó¤Ë¹çÃפ¹¤Ù¤Àµµ¬É½¸½¤Ç¤¢¤ë¡£¹çÃפ¹¤ì
+¤Ð¡¢¤³¤Îµ¬Â§¤Ï°ì»þŪ¤Ë¸½¹Ô¤Î¥é¥ó¤ò¹çÃפ·¤¿Éôʬ¤À¤±¤Ë¸ÂÄꤷ¤¿¾å¤Ç¡¢@c
+RULE ¤ò¼Â¹Ô¤¹¤ë¡£¹çÃפ·¤¿Éôʬ¤Ï¤³¤Îµ¬Â§¤Ë¤è¤Ã¤Æ¾ÃÈñ¤µ¤ì¤ë¡£
+
+³ç¸Ì¤Î¤Ä¤¤¤¿Éôʬɽ¸½¤¬¤¢¤ì¤Ð¡¢@c RULE ¤ÎÃæ¤Ë½Ð¸½¤¹¤ë¤«¤â¤·¤ì¤Ê¤¤ @c
+MATCH-BLOCK ¤Ë¤è¤Ã¤Æ»ÈÍѤ¹¤ë¤¿¤á¤ËµÏ¿¤µ¤ì¤ë¡£
+
+¹çÃפ¹¤ëÉôʬ¤¬Ìµ¤±¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï¼ºÇÔ¤¹¤ë¡£
+
+@verbatim
+MATCH-BLOCK ::= '(' MATCH-INDEX RULE * ')'
+
+MATCH-INDEX ::= INTEGER
+@endverbatim
+
+@c MATCH-INDEX ¤ÏľÁ°¤Î @c REGEXP-BLOCK ¤Ë¤è¤Ã¤ÆµÏ¿¤µ¤ì¤¿Éôʬɽ¸½¤ò»Ø
+Äꤹ¤ëÀ°¿ô¤Ç¤¢¤ë¡£¤³¤Î¤è¤¦¤ÊÉôʬɽ¸½¤¬¤¢¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï°ì»þŪ¤Ë¸½¹Ô¤Î
+¥é¥ó¤ò¹çÃפ·¤¿Éôʬɽ¸½¤À¤±¤Ë¸ÂÄꤷ¤¿¾å¤Ç¡¢@c RULE ¤ò¼Â¹Ô¤¹¤ë¡£¹çÃפ·¤¿
+Éôʬ¤Ï¤³¤Îµ¬Â§¤Ë¤è¤Ã¤Æ¾ÃÈñ¤µ¤ì¤ë¡£
+
+¹çÃפ¹¤ëÉôʬ¤¬Ìµ¤±¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï¼ºÇÔ¤¹¤ë¡£
+
+¤³¤Îµ¬Â§¤¬¥¹¥Æ¡¼¥¸¤ÎºÇ½é¤Ëµ¬Â§¤Ç¤¢¤ì¤Ð¡¢@c MATCH-INDEX ¤Ï 0 ¤Ç¤¢¤ê¡¢¸½
+¹Ô¤Î¥é¥óÁ´ÂΤ˹çÃפ¹¤ë¡£
+
+@verbatim
+SUBST-BLOCK ::= '(' SOURCE-PATTERN RULE * ')'
+
+SOURCE-PATTERN ::= '(' CODE + ')'
+ | (' 'range' CODE CODE ')'
+@endverbatim
+
+¸½¹Ô¤Î¥é¥ó¤Î¥³¡¼¥ÉÎó¤¬ @c SOURCE-PATTERN ¤È¹çÃפ¹¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï°ì»þ
+Ū¤Ë¸½¹Ô¤Î¥é¥ó¤ò¹çÃפ·¤¿Éôʬ¤À¤±¤Ë¸ÂÄꤷ¤¿¾å¤Ç¡¢@c RULE ¤ò¼Â¹Ô¤¹¤ë¡£
+¹çÃפ·¤¿Éôʬ¤Ï¾ÃÈñ¤µ¤ì¤ë¡£
+
+@c SOURCE-PATTERN ¤ÎºÇ½é¤Î·Á¼°¤Ï¡¢¹çÃפ¹¤ë¥°¥ê¥Õ¥³¡¼¥É¤ÎÎó¤ò»ØÄꤹ¤ë¡£
+¤³¤Î¾ì¹ç¡¢¤³¤Îµ¬Â§¤Ï¥Ç¥Õ¥©¥ë¥È¤Î¥³¡¼¥É¥ª¥Õ¥»¥Ã¥È¤ò 0 ¤Ë¥ê¥»¥Ã¥È¤¹¤ë¡£
+
+Æó¤Ä¤á¤Î·Á¼°¤Ï¡¢¥³¡¼¥ÉÎó¤ÎºÇ½é¤Î¥°¥ê¥Õ¥³¡¼¥É¤ÎÈϰϤò»ØÄꤹ¤ë¡£¤³¤Î¾ì¹ç¡¢
+¤³¤Îµ¬Â§¤Ï¥Ç¥Õ¥©¥ë¥È¤Î¥³¡¼¥É¥ª¥Õ¥»¥Ã¥È¤òºÇ½é¤Î¥°¥ê¥Õ¥³¡¼¥É¤«¤éÈϰϤò»Ø
+Äꤹ¤ë½é¤á¤Î @c CODE ¤ò°ú¤¤¤¿¤â¤Î¤ËÀßÄꤹ¤ë¡£
+
+¹çÃפ¹¤ëÉôʬ¤¬Ìµ¤±¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï¼ºÇÔ¤¹¤ë¡£
+
+@verbatim
+COND-BLOCK ::= '(' 'cond' RULE + ')'
+@endverbatim
+
+¤³¤Îµ¬Â§¤Ï @c RULE ¤ò½ç¤Ë¡¢¤É¤ì¤«¤¬À®¸ù¤¹¤ë¤Þ¤Ç¼Â¹Ô¤¹¤ë¡£¤É¤Î¥ë¡¼¥ë¤â
+À®¸ù¤·¤Ê¤±¤ì¤Ð¡¢¤³¤Îµ¬Â§¤Ï¼ºÇÔ¤¹¤ë¡£¤½¤¦¤Ç¤Ê¤±¤ì¤ÐÀ®¸ù¤Ç¤¢¤ë¡£
+
+@verbatim
+OTF-SPEC ::= SYMBOL
+@endverbatim
+
+@c OTF-SPEC ¤Ï¡¢OTF ¥É¥é¥¤¥Ð¤Ø¤Î»Ø¼¨¤ò»ØÄꤹ¤ë̾Á°¤ò»ý¤Ä¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
+̾Á°¤Ï°Ê²¼¤Îʸˡ¤Ë½¾¤¦¡£
+
+@verbatim
+ OTF-SPEC-NAME ::= 'otf:' SCRIPT LANGSYS ? GSUB-FEATURES ? GPOS-FEATURES ?
+
+ SCRIPT ::= SYMBOL
+
+ LANGSYS ::= '/' SYMBOL
+
+ GSUB-FEATURES ::= '=' FEATURE-LIST ?
+
+ GPOS-FEATURES ::= '+' FEATURE-LIST ?
+
+ FEATURE-LIST ::= ( SYMBOL ',' ) * [ SYMBOL | '*' ]
+
+@endverbatim
+
+³Æ @c SYMBOL ¤Ï OpenType specification Ãæ¤Ç¤Î¥¿¥°Ì¾¤ò»ØÄꤹ¤ë¡£
+
+@c SCRIPT ¤Ë¤Ä¤¤¤Æ¤Ï¡¢@c SYMBOL ¤Ï¥¹¥¯¥ê¥×¥È¥¿¥°Ì¾¤òɽ¤¹¡£Devanagari
+¤Ï deva ¤Ê¤É¡£)
+
+@c LANGSYS ¤Î¾ì¹ç¤Ï¡¢@c SYMBOL ¤Ï¸À¸ì¥·¥¹¥Æ¥à¥¿¥°Ì¾¤ò»ØÄꤹ¤ë¡£@c
+LANGSYS ¤¬¾Êά¤µ¤ì¤ì¤Ð¡¢¥Ç¥Õ¥©¥ë¥È¤Î¸À¸ì¥·¥¹¥Æ¥à¥Æ¡¼¥Ö¥ë¤¬»ÈÍѤµ¤ì¤ë¡£
+
+@c GSUB-FEATURES ¤Ç¤Ï¡¢ @c FEATURE LIST Ãæ¤Î³Æ @c SYMBOL ¤Ï ŬÍѤ¹¤ë
+GSUB feature ¥¿¥°Ì¾¤ò»ØÄꤹ¤ë¡£'*' ¤Ï»Ä¤ê¤¹¤Ù¤Æ¤Î feature ¤ò»ØÄꤹ¤ë¤¿
+¤á¤ËºÇ¸å¤ÎÍ×ÁǤȤ·¤ÆÍѤ¤¤ë¤³¤È¤¬¤Ç¤¤ë¡£ @c SYMBOL ¤ÎÁ°¤Ë'~' ¤¬¤Ä¤¤¤Æ
+¤ª¤ê¡¢ºÇ¸å¤ÎÍ×ÁǤ¬ '*' ¤Ê¤é¤Ð¡¢@c SYMBOL ¤ÏŬÍѤ¹¤ëfeature ¤«¤é½ü¤«¤ì
+¤ë¡£@c SYMBOL ¤¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¡¢GSUB feature ¤ÏŬÍѤµ¤ì¤Ê¤¤¡£@c
+GSUB-FEATURES ¼«ÂΤ¬¾Êά¤µ¤ì¤ì¤Ð¤¹¤Ù¤Æ¤Î GSUB feature ¤¬Å¬ÍѤµ¤ì¤ë¡£
+
+@c GPOS-FEATURES ¤Î»ØÄê¤Ï @c GSUB-FEATURES ¤Î¾ì¹ç¤ÈƱÍͤǤ¢¤ë¡£
+
+OpenType ¤Î»ØÄêÊýË¡¤Ë¤Ä¤¤¤Æ¤Ï¼¡¤Î¥Ú¡¼¥¸¤ò»²¾È¤Î¤³¤È¡£\n
+ <http://www.microsoft.com/typography/otspec/default.htm>
+
+@verbatim
+COMBINING ::= SYMBOL
+@endverbatim
+
+@c COMBINING ¤Ï¡¢ ¼¡¤Î¥°¥ê¥Õ¤òÁ°¤Î¤â¤Î¤È¤É¤¦·ë¹ç¤¹¤ë¤«¤Î»Ø¼¨¤ò̾Á°¤È¤·
+¤Æ»ý¤Ä¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£¤³¤Î¥ë¡¼¥ë¤Ï¥Ç¥Õ¥©¥ë¥È¤Î·ë¹çµ¬Â§¤ò¥·¥ó¥Ü¥ë̾¸ÇÍ
+¤ÎÀ°¿ô¥³¡¼¥É¤Ë¥»¥Ã¥È¤¹¤ë¡£Ì¾Á°¤Ï°Ê²¼¤Îʸˡ¤Ë½¾¤¦¡£
+following syntax.
+
+@verbatim
+ COMBINING-NAME ::= VPOS HPOS OFFSET VPOS HPOS
+
+ VPOS ::= 't' | 'c' | 'b' | 'B'
+
+ HPOS ::= 'l' | 'c' | 'r'
+
+ OFFSET :: = '.' | XOFF | YOFF XOFF ?
+
+ XOFF ::= ('<' | '>') INTEGER ?
+
+ YOFF ::= ('+' | '-') INTEGER ?
+@endverbatim
+
+@c VPOS ¤È @c HPOS ¤Ï¼¡¤Î¤è¤¦¤Ë¿âľ¡¢¿åÊ¿°ÌÃÖ¤ò»ØÄꤹ¤ë¡£
+
+@verbatim
+ POINT VPOS HPOS
+ ----- ---- ----
+ 0----1----2 <---- top 0 t l
+ | | 1 t c
+ | | 2 t r
+ | | 3 B l
+ 9 10 11 <---- center 4 B c
+ | | 5 B r
+ --3----4----5-- <-- baseline 6 b l
+ | | 7 b c
+ 6----7----8 <---- bottom 8 b r
+ 9 c l
+ | | | 10 c c
+ left center right 11 c r
+@endverbatim
+
+º¸¤Î¿Þ¤Ï¤¢¤ë¥°¥ê¥Õ¤Î 12 ¤Î»²¾ÈÅÀ¤ò 0 ¤«¤é 11 ¤Þ¤Ç¤Î¿ô»ú¤Ç¼¨¤·¤Æ¤¤¤ë¡£
+»Í³Ñ·Á 0-6-8-2 ¤Ï¥°¥ê¥Õ¤Îɽ¼¨Îΰè¤Ç¤¢¤ê¡¢°ÌÃÖ3, 4, 5 ¤Ï¥Ù¡¼¥¹¥é¥¤¥ó¾å
+¤Ë¤¢¤ë¡£ 9 ¤È 11 ¤Ï¤½¤ì¤¾¤ìÀþ0-6 ¤È 2-8 ¤ÎÃæ¿´¤Ç¤¢¤ë¡£1, 10, 4, 7 ¤Ï¤½
+¤ì¤¾¤ìÀþ1-2, 3-5, 9-11, 6-8 ¤ÎÃæ¿´¤Ç¤¢¤ë¡£
+
+±¦¤Îɽ¤Ï¡¢³Æ»²¾ÈÅÀ¤¬@c VPOS ¤È @c HPOS ¤ÎÁȹ礻¤Ë¤è¤Ã¤Æ¤É¤Î¤è¤¦¤Ë»ØÄê
+¤µ¤ì¤ë¤«¤ò¼¨¤·¤Æ¤¤¤ë¡£
+
+@c COMBINING-NAME ¤ÎÄêµÁÃæ¤ÎºÇ½é¤Î @c VPOS ¤È @c HPOS ¤Ï¡¢Á°¤Î¥°¥ê¥Õ¤Î
+»²¾ÈÅÀ¤ò¡¢Æó¤ÄÌܤΠ@c VPOS ¤È @c HPOS ¤Ï¼¡¤Î¥°¥ê¥Õ¤Î»²¾ÈÅÀ¤ò»ØÄꤹ¤ë¡£
+¼¡¤Î¥°¥ê¥Õ¤Ï¤³¤ÎÆó¸Ä¤Î»²¾ÈÅÀ¤¬½Å¤Ê¤ë¤è¤¦¤ËÉÁ¤«¤ì¤ë¡£
+
+@c OFFSET ¤Ï½Å¤Ê¤ê¤«Â¾¤Î¾ÜºÙ¤ò»ØÄꤹ¤ë¡£'.' ¤Ç¤¢¤ì¤Ð¡¢»²¾ÈÅÀÆó¤Ä¤ÏƱ¤¸
+°ÌÃ֤ˤ¢¤ë¡£
+
+@c XOFF ¤Ï¡¢¼¡¤Î¥°¥ê¥Õ¤Î»²¾ÈÅÀ¤Î X ºÂɸ¤ò¡¢Á°¤Î»²¾ÈÅÀ¤«¤é¤É¤ì¤Û¤É±¦
+('<') ¤¢¤ë¤¤¤Ïº¸ ('>') ¤Ø¤º¤é¤¹¤«»ØÄꤹ¤ë¡£
+
+@c YOFF ¤Ï¡¢¼¡¤Î¥°¥ê¥Õ¤Î»²¾ÈÅÀ¤Î Y ºÂɸ¤ò¡¢Á°¤Î»²¾ÈÅÀ¤«¤é¤É¤ì¤Û¤É¾å
+('+') ¤¢¤ë¤¤¤Ï²¼ ('-') ¤Ø¤º¤é¤¹¤«»ØÄꤹ¤ë¡£
+
+¤É¤Á¤é¤Î¾ì¹ç¤Ë¤â¡¢@c INTEGER ¤Ï¥Õ¥©¥ó¥È¥µ¥¤¥º¤Î²¿¡ó¤º¤é¤¹¤«¤ò¼¨¤¹ÃͤÇ
+¤¢¤ë¡£¤¹¤Ê¤ï¤Á¡¢¤â¤· @c INTEGER ¤¬ 10 ¤Ê¤é¤Ð¥Õ¥©¥ó¥È¥µ¥¤¥º¤Î10% (1/10)
+¤º¤é¤¹¤³¤È¤Ë¤Ê¤ë¡£ @c INTEGER ¤¬¾Êά¤µ¤ì¤¿¾ì¹ç¤Ë¤Ï¡¢5 ¤¬»ØÄꤵ¤ì¤¿¤â¤Î
+¤È¤¹¤ë¡£
+
+¼¡¤Î¥°¥ê¥Õ¤¬Á°¤Î¥°¥ê¥Õ¤Ë·ë¹ç¤µ¤ì¤ë¤È¡¢¤½¤ì¤é¤Ï°ì¤Ä¤Î·ë¹ç¥°¥ê¥Õ¤È¤·¤Æ°·
+¤ï¤ì¤ë¡£
+
+@verbatim
+MACRO-NAME ::= SYMBOL
+@endverbatim
+
+@c MACRO-NAME ¤Ï @c MACRO-DEF ¤Î¤¤¤º¤ì¤«¤Ë¸½¤ï¤ì¤ë¥·¥ó¥Ü¥ë¤Ç¤¢¤ê¡¢Âбþ
+¤¹¤ë@c RULE ¤ÎÎó¤ËŸ³«¤µ¤ì¤ë¡£
+
+@section flt-context-dependent ʸ̮¤Ë°Í¸¤¹¤ë¿¶Éñ
+
+¤³¤³¤Þ¤Ç¤Ï¡¢ÆÃÄê¤Î¥Õ¥©¥ó¥È¤ÇÉÁ¤«¤ì¤ë³Æʸ»ú¡¿¥°¥ê¥ÕÎó¤¬Ê¸Ì®¼«Í³¤Ç¤¢¤ë¤³
+¤È¡¢¤¹¤Ê¤ï¤ÁÁ°¸å¤Î¥°¥ê¥Õ¤Ë±Æ¶Á¤µ¤ì¤Ê¤¤¤³¤È¤òÁ°Äó¤È¤·¤Æ¤¤¿¡£¤³¤ì¤Ï¡¢Îó
+S1 ¤¬¥Õ¥©¥ó¥ÈF1 ¤Ë¤è¤Ã¤ÆÉÁ¤«¤ì¡¢Àè¹Ô¤¹¤ëÎó S0 ¤¬¾ï¤Ë¥Õ¥©¥ó¥È F0 ¤òÍ×µá
+¤¹¤ë¾ì¹ç¤Ë¤ÏÀµ¤·¤¤¡£
+
+@verbatim
+ Îó S0 S1
+ ¸½¹Ô¤Î¥Õ¥©¥ó¥È F0 F1
+ ÍøÍѲÄǽ¤Ê¥Õ¥©¥ó¥È F0 F1
+@endverbatim
+
+¤·¤«¤·»þ¤Ë¤Ï¡¢Îó¤òÌÀ³Î¤Ë¶èÀڤ뤳¤È¤¬¤Ç¤¤Ê¤¤¾ì¹ç¤â¤¢¤ë¡£Àè¹Ô¤¹¤ëÎó S0
+¤¬ F0 ¤À¤±¤Ç¤Ê¤¯ F1 ¤Ç¤âÉÁ¤±¤ë¤È¤·¤è¤¦¡£
+
+@verbatim
+ Îó S0 S1
+ ¸½¹Ô¤Î¥Õ¥©¥ó¥È F0 F1
+ ÍøÍѲÄǽ¤Ê¥Õ¥©¥ó¥È F0,F1 F1
+@endverbatim
+
+¤³¤Î¾ì¹ç¡¢Àè¹Ô¤¹¤ë S0 ¤òÉÁ¤¯¤¿¤á¤Ë»È¤ï¤ì¤¿¥°¥ê¥Õ¤¬ S1 ¤Î¥°¥ê¥Õ¤ÎÀ¸À®¤Ë
+±Æ¶Á¤òÍ¿¤¨¤ë¤³¤È¤â¤¢¤ë¡£¤½¤³¤Ç S1 ¤Î½èÍý¤ÎºÝ¤Ë¤¹¤Ç¤Ë½èÍý¤Î½ª¤Ã¤¿ S0 ¤Ë
+´Ø¤¹¤ë¾ðÊó¤Ë¥¢¥¯¥»¥¹¤¹¤ëɬÍפ¬¤¢¤ë¡£ºÇ½é¤Î¥¹¥Æ¡¼¥¸¡Ê¤³¤Î¥¹¥Æ¡¼¥¸¤Î¤ß¡Ë
+¤ÎÀ¸À®µ¬Â§¤Ï¡¢½èÍýºÑ¤ß¤ÎÉôʬ¤Ø¥¢¥¯¥»¥¹¤¹¤ëÆÃÊ̤ÊÀµµ¬É½¸½¤òµö¤·¤Æ¤¤¤ë¡£
+
+@verbatim
+ "RE0 RE1"
+@endverbatim
+
+@c RE0 ¤È @c RE1 ¤ÏÀè¹Ô¤ÎÎó S0 ¤È¸å³¤ÎÎó S1 ¤Ë¤½¤ì¤¾¤ìÂбþ¤¹¤ëÀµµ¬É½
+¸½¤Ç¤¢¤ë¡£
+
+Æó¤Ä¤ÎÀµµ¬É½¸½¤Î´Ö¤Î¥¹¥Ú¡¼¥¹¤ËÃí°Õ¡£¤³¤ì¤ÏÆÃÊ̤ʥ«¥Æ¥´¥ê ' ' ¤ò¼¨¤·¤Æ
+¤¤¤ë (¾åµ»²¾È) ¡£¤³¤ÎÀµµ¬É½¸½¤Ï¥Õ¥©¥ó¥È F1 ¤ò»ÈÍѤ¹¤ë¥°¥ê¥ÕÀ¸À®µ¬Â§¤Ë
+°¤·¤Æ¤ª¤ê¡¢¤·¤¿¤¬¤Ã¤Æ RE1 ¤À¤±¤Ç¤Ê¤¯RE0 ¤â F1 ÍѤΥ«¥Æ¥´¥ê¤òÍѤ¤¤Æɽ
+¸½¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¤Ä¤Þ¤ê¡¢Àè¹Ô¤¹¤ëÎóS0 ¤¬ F1 ÍѤΥ«¥Æ¥´¥ê¤Çɽ¤»
+¤Ê¤¤¾ì¹ç¤Ë¤Ï(¾å¤ÎºÇ½é¤ÎÎã¤Î¤è¤¦¤Ë) ¤³¤Î¥Ñ¥¿¡¼¥ó¤ò»ý¤ÄÀ¸À®µ¬Â§¤Ë¤Ï¹çÃ×
+¤·¤Ê¤¤¡£
+
+@section flt-seealso »²¾È
+
+@ref mdbGeneral "mdbGeneral(5)",
+@ref flt-list "FLTs provided by the m17n database"
+*/
+
+/*
+Copyright (C) 2003, 2004
+ National Institute of Advanced Industrial Science and Technology (AIST)
+ Registration Number H15PRO112
+
+This file is part of the m17n database; a sub-part of the m17n
+library.
+
+The m17n library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public License
+as published by the Free Software Foundation; either version 2.1 of
+the License, or (at your option) any later version.
+
+The m17n library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+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
+02111-1307, USA.
+*/