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31.19.1 ¥Æ¥­¥¹¥È°À­¤òÄ´¤Ù¤ë

¥Æ¥­¥¹¥È°À­¤òÄ´¤Ù¤ë¤â¤Ã¤È¤â´Êñ¤ÊÊýË¡¤Ï¡¢ ÆÃÄê¤Îʸ»ú¤ÎÆÃÄê¤Î°À­¤ÎÃͤòÌ䤤¹ç¤ï¤»¤ë¤³¤È¤Ç¤¹¡£ ¤½¤ì¤Ë¤Ï¡¢get-text-property¤ò»È¤¤¤Þ¤¹¡£ ʸ»ú¤Î°À­¥ê¥¹¥ÈÁ´ÂΤò¼èÆÀ¤¹¤ë¤Ë¤Ïtext-properties-at¤ò»È¤¤¤Þ¤¹¡£ Ê£¿ô¤Îʸ»ú¤Î°À­¤ò°ìÅÙ¤ËÄ´¤Ù¤ë¤¿¤á¤Î´Ø¿ô¤Ë¤Ä¤¤¤Æ¤Ï¡¢ See Property Search¡£

¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢Ê¸»úÎó¤È¥Ð¥Ã¥Õ¥¡¤ÎξÊý¤ò°·¤¨¤Þ¤¹¡£ ʸ»úÎóÆâ¤Î°ÌÃÖ¤Ï0¤«¤é»Ï¤Þ¤ê¡¢ ¥Ð¥Ã¥Õ¥¡Æâ¤Î°ÌÃÖ¤Ï1¤«¤é»Ï¤Þ¤ë¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£

Function: get-text-property pos prop &optional object

¤³¤Î´Ø¿ô¤Ï¡¢object¡Ê¥Ð¥Ã¥Õ¥¡¤«Ê¸»úÎó¡ËÆâ¤Î°ÌÃÖpos¤Î ¤¦¤·¤í¤Î1ʸ»ú¤Î°À­prop¤ÎÃͤòÊÖ¤¹¡£ °ú¿ôobject¤Ï¾Êά¤Ç¤­¡¢ ¥Ç¥Õ¥©¥ë¥È¤Ï¥«¥ì¥ó¥È¥Ð¥Ã¥Õ¥¡¤Ç¤¢¤ë¡£

¤½¤Îʸ»ú¤Ë°À­prop¤¬¤Ê¤¯¤Æ¤â¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¥«¥Æ¥´¥ê¤¬¤¢¤ì¤Ð¡¢ get-text-property¤ÏÅö³º¥·¥ó¥Ü¥ë¤Î°À­prop¤òÊÖ¤¹¡£

Function: get-char-property pos prop &optional object

¤³¤Î´Ø¿ô¤Ïget-text-property¤Ë»÷¤Æ¤¤¤ë¤¬¡¢ ¤Þ¤º¥ª¡¼¥Ð¥ì¥¤¤òÄ´¤Ù¤Æ¤«¤é¥Æ¥­¥¹¥È°À­¤òÄ´¤Ù¤ë¡£ see Overlays¡£

°ú¿ôobject¤Ï¡¢Ê¸»úÎ󡢥Хåե¡¡¢¥¦¥£¥ó¥É¥¦¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£ ¥¦¥£¥ó¥É¥¦¤Ç¤¢¤ë¤È¡¢¤½¤Î¥¦¥£¥ó¥É¥¦¤Ëɽ¼¨¤·¤Æ¤¤¤ë¥Ð¥Ã¥Õ¥¡¤Î ¥Æ¥­¥¹¥È°À­¤È¥ª¡¼¥Ð¥ì¥¤¤òÂоݤˤ¹¤ë¤¬¡¢ ÂоݤȤʤ륪¡¼¥Ð¥ì¥¤¤Ï¤½¤Î¥¦¥£¥ó¥É¥¦¤ËÂФ·¤Æ³èÀ­¤Ê¤â¤Î¤À¤±¤Ç¤¢¤ë¡£ object¤¬¥Ð¥Ã¥Õ¥¡¤Ç¤¢¤ë¤È¡¢¥Æ¥­¥¹¥È°À­¤Ë²Ã¤¨¤Æ ¤½¤Î¥Ð¥Ã¥Õ¥¡¤Î¤¹¤Ù¤Æ¤Î¥ª¡¼¥Ð¥ì¥¤¤òÂоݤˤ¹¤ë¡£ object¤¬Ê¸»úÎó¤Ç¤¢¤ë¤È¡¢ ʸ»úÎó¤Ë¤Ï¥ª¡¼¥Ð¥ì¥¤¤Ï¤Ê¤¤¤Î¤Ç¡¢¥Æ¥­¥¹¥È°À­¤Î¤ß¤òÂоݤˤ¹¤ë¡£

Function: text-properties-at position &optional object

¤³¤Î´Ø¿ô¤Ï¡¢Ê¸»úÎó¤ä¥Ð¥Ã¥Õ¥¡¤Ç¤¢¤ëobjectÆâ¤Î °ÌÃÖposition¤Ë¤¢¤ë1ʸ»ú¤Î°À­¥ê¥¹¥ÈÁ´ÂΤòÊÖ¤¹¡£ object¤¬nil¤Ç¤¢¤ë¤È¡¢¥Ç¥Õ¥©¥ë¥È¤Ï¥«¥ì¥ó¥È¥Ð¥Ã¥Õ¥¡¤Ç¤¢¤ë¡£

Variable: default-text-properties

¤³¤ÎÊÑ¿ô¤Ï¡¢¥Æ¥­¥¹¥È°À­¤Î¥Ç¥Õ¥©¥ë¥ÈÃͤòÍ¿¤¨¤ë°À­¥ê¥¹¥È¤òÊÝ»ý¤¹¤ë¡£ ľÀÜŪ¤Ë¤â¥«¥Æ¥´¥ê¥·¥ó¥Ü¥ë¤ò²ð¤·¤Æ´ÖÀÜŪ¤Ë¤â ʸ»ú¤Ë°À­¤ÎÃͤ¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¤È¡¢ ¤³¤Î¥ê¥¹¥È¤Ë¼ý¤á¤¿Ãͤò¤«¤ï¤ê¤Ë»È¤¦¡£ ¤Ä¤®¤ËÎã¤ò¼¨¤¹¡£

(setq default-text-properties '(foo 69))
;; °ÌÃÖ1¤Îʸ»ú¤Ë°À­¤¬¤Ê¤¤¤³¤È¤òÊݾڤ¹¤ë
(set-text-properties 1 2 nil)
;; Ì䤤¹ç¤ï¤»¤¿¤È¤­¤Ë¸«¤¨¤ë¤Î¤Ï¥Ç¥Õ¥©¥ë¥ÈÃͤǤ¢¤ë
(get-text-property 1 'foo)
     ⇒ 69