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30.3 ¥Þ¡¼¥«ºîÀ®´Ø¿ô

¿·¤¿¤Ë¥Þ¡¼¥«¤òºîÀ®¤¹¤ë¤È¤­¤Ë¤Ï¡¢¤½¤Î¥Þ¡¼¥«¤¬¡¢ ¤É¤³¤â»Ø¤·¤Æ¤¤¤Ê¤¤¡¢¸½ºß¤Î¥Ý¥¤¥ó¥È°ÌÃÖ¤ò»Ø¤·¤Æ¤¤¤ë¡¢ ¥Ð¥Ã¥Õ¥¡¤Î»²¾È²ÄǽÉôʬ¤ÎÀèÆ¬¤äËöÈø¤ò»Ø¤·¤Æ¤¤¤ë¡¢ Ê̤Υޡ¼¥«¤ÈƱ¤¸²Õ½ê¤ò»Ø¤·¤Æ¤¤¤ë¤Î¤¤¤º¤ì¤«¤Ë¤Ç¤­¤Þ¤¹¡£

Function: make-marker

¤³¤Î´Ø¿ô¤Ï¡¢¤É¤³¤â»Ø¤·¤Æ¤¤¤Ê¤¤¿·¤¿¤ËºîÀ®¤·¤¿¥Þ¡¼¥«¤òÊÖ¤¹¡£

(make-marker)
     ⇒ #<marker in no buffer>
Function: point-marker

¤³¤Î´Ø¿ô¤Ï¡¢¥«¥ì¥ó¥È¥Ð¥Ã¥Õ¥¡¤Î¸½ºß¤Î¥Ý¥¤¥ó¥È°ÌÃÖ¤ò »Ø¤¹¿·¤¿¤ËºîÀ®¤·¤¿¥Þ¡¼¥«¤òÊÖ¤¹¡£ see Point¡£ Îã¤Ë¤Ä¤¤¤Æ¤Ï¡¢²¼µ­¤Îcopy-marker¤ò»²¾È¡£

Function: point-min-marker

¤³¤Î´Ø¿ô¤Ï¡¢¥Ð¥Ã¥Õ¥¡¤Î»²¾È²ÄǽÉôʬ¤ÎÀèÆ¬¤ò»Ø¤¹¿·¤¿¤ËºîÀ®¤·¤¿¥Þ¡¼¥«¤òÊÖ¤¹¡£ ¥Ê¥í¥¤¥ó¥°¤·¤Æ¤¤¤Ê¤±¤ì¤Ð¡¢¤³¤ì¤Ï¥Ð¥Ã¥Õ¥¡¤ÎÀèÆ¬¤Ç¤¢¤ë¡£ see Narrowing¡£

Function: point-max-marker

¤³¤Î´Ø¿ô¤Ï¡¢¥Ð¥Ã¥Õ¥¡¤Î»²¾È²ÄǽÉôʬ¤ÎËöÈø¤ò»Ø¤¹¿·¤¿¤ËºîÀ®¤·¤¿¥Þ¡¼¥«¤òÊÖ¤¹¡£ ¥Ê¥í¥¤¥ó¥°¤·¤Æ¤¤¤Ê¤±¤ì¤Ð¡¢¤³¤ì¤Ï¥Ð¥Ã¥Õ¥¡¤ÎËöÈø¤Ç¤¢¤ë¡£ see Narrowing¡£

ËܾϤΥ½¡¼¥¹¥Õ¥¡¥¤¥ë¡Ê¤Î¸¶Ê¸¡Ë¤òÆþ¤ì¤¿¥Ð¥Ã¥Õ¥¡¤Ç¤Î ¤³¤Î´Ø¿ô¤Èpoint-min-marker¤ÎÎã¤ò¼¨¤¹¡£

(point-min-marker)
     ⇒ #<marker at 1 in markers.texi>
(point-max-marker)
     ⇒ #<marker at 15573 in markers.texi>
(narrow-to-region 100 200)
     ⇒ nil
(point-min-marker)
     ⇒ #<marker at 100 in markers.texi>
(point-max-marker)
     ⇒ #<marker at 200 in markers.texi>
Function: copy-marker marker-or-integer &optional insertion-type

°ú¿ô¤È¤·¤Æ¥Þ¡¼¥«¤òÅϤµ¤ì¤ë¤È¡¢copy-marker¤Ï¡¢ marker-or-integer¤¬»Ø¤¹¤Î¤ÈƱ¤¸ ¥Ð¥Ã¥Õ¥¡¤È¥Ð¥Ã¥Õ¥¡Æâ°ÌÃÖ¤ò»Ø¤¹¿·¤¿¤Ê¥Þ¡¼¥«¤òÊÖ¤¹¡£ °ú¿ô¤È¤·¤ÆÀ°¿ô¤òÅϤµ¤ì¤ë¤È¡¢copy-marker¤Ï¡¢ ¥«¥ì¥ó¥È¥Ð¥Ã¥Õ¥¡¤Ç°ÌÃÖmarker-or-integer¤ò»Ø¤¹¿·¤¿¤Ê¥Þ¡¼¥«¤òÊÖ¤¹¡£

¿·¤¿¤Ê¥Þ¡¼¥«¤ÎÁÞÆþ·¿¤Ï°ú¿ôinsertion-type¤Ç»ØÄꤹ¤ë¡£ see Marker Insertion Types¡£

ÅϤµ¤ì¤¿À°¿ô°ú¿ô¤¬1̤Ëþ¤Ç¤¢¤ë¤È¡¢copy-marker¤Ï¡¢ ¥«¥ì¥ó¥È¥Ð¥Ã¥Õ¥¡¤Ç¥Ð¥Ã¥Õ¥¡¤ÎÀèÆ¬¤ò»Ø¤¹¿·¤¿¤Ê¥Þ¡¼¥«¤òÊÖ¤¹¡£ ÅϤµ¤ì¤¿À°¿ô°ú¿ô¤¬¥Ð¥Ã¥Õ¥¡¤ÎŤµ¤è¤êÂ礭¤¤¤È¡¢copy-marker¤Ï¡¢ ¥Ð¥Ã¥Õ¥¡¤ÎËöÈø¤ò»Ø¤¹¿·¤¿¤Ê¥Þ¡¼¥«¤òÊÖ¤¹¡£

(copy-marker 0)
     ⇒ #<marker at 1 in markers.texi>
(copy-marker 20000)
     ⇒ #<marker at 7572 in markers.texi>

marker-or-integer¤¬¥Þ¡¼¥«¤Ç¤âÀ°¿ô¤Ç¤â¤Ê¤¤¤È¡¢¥¨¥é¡¼¤òÄÌÃΤ¹¤ë¡£

2¤Ä¤Î°Û¤Ê¤ë¥Þ¡¼¥«¤¬¡¢Æ±¤¸¥Ð¥Ã¥Õ¥¡¤ÎƱ¤¸¥Ð¥Ã¥Õ¥¡Æâ°ÌÃ֤Ǥ¢¤ë¤«¡¢ ¤É¤Á¤é¤â¤É¤³¤â»Ø¤·¤Æ¤¤¤Ê¤¤¤È¤­¤Ë¤Ï¡¢ ξ¼Ô¤ò¡Êeq¤Ç¤Ï¤Ê¤¤¤¬¡Ëequal¤È¤ß¤Ê¤·¤Þ¤¹¡£

(setq p (point-marker))
     ⇒ #<marker at 2139 in markers.texi>
(setq q (copy-marker p))
     ⇒ #<marker at 2139 in markers.texi>
(eq p q)
     ⇒ nil
(equal p q)
     ⇒ t