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24.8.1 ¥Õ¥¡¥¤¥ë̾¤Î¹½À®Í×ÁÇ

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UNIX¤Ç¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤ÏºÇ¸å¤Î¥¹¥é¥Ã¥·¥å¤Þ¤Ç¤ò´Þ¤ó¤ÀÉôʬ¤Ç¤¢¤ê¡¢ Èó¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤Ï»Ä¤ê¤ÎÉôʬ¤Ç¤¹¡£ VMS¤Î¹½Ê¸µ¬Â§¤ÏÊ£»¨¤Ç¤¹¡£

¤¢¤ë¼ï¤ÎÌÜŪ¤Î¤¿¤á¤Ë¡¢Èó¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤ò¤µ¤é¤Ë ̾Á°¤À¤±¤ÎÉôʬ¤ÈÈÇÈÖ¹æ¡Êversion number¡Ë¤Ëʬ¤±¤Þ¤¹¡£ UNIX¤Ç¤Ï¡¢¥Ð¥Ã¥¯¥¢¥Ã¥×¥Õ¥¡¥¤¥ë¤À¤±¤Ë¤½¤ì¤é¤Î̾Á°¤ËÈÇÈֹ椬¤¢¤ê¤Þ¤¹¡£ VMS¤Ç¤Ï³Æ¥Õ¥¡¥¤¥ë¤ËÈÇÈֹ椬¤¢¤ê¤Þ¤¹¤¬¡¢ ¤Û¤È¤ó¤É¤Î¾ì¹ç¡¢Emacs¤Ç¼ÂºÝ¤Ë»È¤¦¥Õ¥¡¥¤¥ë̾¤Ç¤ÏÈÇÈÖ¹æ¤ò¾Êά¤·¤Þ¤¹¡£ ¤½¤Î¤¿¤á¡¢Emacs¤ÇÈÇÈֹ椬¸«¤¨¤ë¤Î¤Ï¿¤¯¤Î¾ì¹ç¥Ç¥£¥ì¥¯¥È¥ê°ìÍ÷¤Ç¤¹¡£

Function: file-name-directory filename

¤³¤Î´Ø¿ô¤Ïfilename¤Î¥Ç¥£¥ì¥¯¥È¥êÉôʬ ¡Ê¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤¬¤Ê¤±¤ì¤Ðnil¡Ë¤òÊÖ¤¹¡£ UNIX¤Ç¤Ï¡¢¤³¤Î´Ø¿ô¤Ï¥¹¥é¥Ã¥·¥å¤Ç½ª¤ëʸ»úÎó¤òÊÖ¤¹¡£ VMS¤Ç¤Ï¡¢‘:’¡¢‘]’¡¢‘>’¤Î¤¤¤º¤ì¤«¤Ç½ª¤ëʸ»úÎó¤òÊÖ¤¹¡£

(file-name-directory "lewis/foo")  ; UNIX¤ÎÎã
     ⇒ "lewis/"
(file-name-directory "foo")        ; UNIX¤ÎÎã
     ⇒ nil
(file-name-directory "[X]FOO.TMP") ; VMS¤ÎÎã
     ⇒ "[X]"
Function: file-name-nondirectory filename

¤³¤Î´Ø¿ô¤Ïfilename¤ÎÈó¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤òÊÖ¤¹¡£

(file-name-nondirectory "lewis/foo")
     ⇒ "foo"
(file-name-nondirectory "foo")
     ⇒ "foo"
;; ¤Ä¤®¤ÎÎã¤ÏVMS¤Ç¤Î¤ßÀµ³Î¤Ç¤¢¤ë
(file-name-nondirectory "[X]FOO.TMP")
     ⇒ "FOO.TMP"
Function: file-name-sans-versions filename

¤³¤Î´Ø¿ô¤Ï¡¢filename¤«¤éÈÇÈֹ桢¥Ð¥Ã¥¯¥¢¥Ã¥×ÈÇÈֹ桢 ËöÈø¤Î¥Æ¥£¥ë¥À¤ò¤¹¤Ù¤Æºï½ü¤·¤¿¤â¤Î¤òÊÖ¤¹¡£

(file-name-sans-versions "~rms/foo.~1~")
     ⇒ "~rms/foo"
(file-name-sans-versions "~rms/foo~")
     ⇒ "~rms/foo"
(file-name-sans-versions "~rms/foo")
     ⇒ "~rms/foo"
;; ¤Ä¤®¤ÎÎã¤ÏVMS¤Ç¤Î¤ßÀµ³Î¤Ç¤¢¤ë
(file-name-sans-versions "foo;23")
     ⇒ "foo"
Function: file-name-sans-extension filename

¤³¤Î´Ø¿ô¤Ï¡¢filename¤«¤é¤¢¤ì¤Ð¡Ø³ÈÄ¥»Ò¡Ù¤ò½ü¤¤¤¿¤â¤Î¤òÊÖ¤¹¡£ ¥Õ¥¡¥¤¥ë̾¤Î³ÈÄ¥»Ò¤È¤Ï¡¢ ̾Á°¤ÎºÇ¸å¤ÎÉôʬ¤Ë¤¢¤ë‘.’¤Ç»Ï¤Þ¤ëÉôʬ¤Ç¤¢¤ë¡£ ¤¿¤È¤¨¤Ð¤Ä¤®¤Î¤È¤ª¤ê¤Ç¤¢¤ë¡£

(file-name-sans-extension "foo.lose.c")
     ⇒ "foo.lose"
(file-name-sans-extension "big.hack/foo")
     ⇒ "big.hack/foo"