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21.8 ¥­¡¼Ãµº÷´Ø¿ô

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Function: lookup-key keymap key &optional accept-defaults

¤³¤Î´Ø¿ô¤Ï¥­¡¼¥Þ¥Ã¥×keymap¤Ë¤ª¤±¤ëkey¤ÎÄêµÁ¤òÊÖ¤¹¡£ ËܾϤǽҤ٤뾤δؿô¤Ï¡¢lookup-key¤òÍѤ¤¤Æ¥­¡¼¤òõ¤¹¡£ Îã¤ò¼¨¤¹¡£

(lookup-key (current-global-map) "\C-x\C-f")
    ⇒ find-file
(lookup-key (current-global-map) "\C-x\C-f12345")
    ⇒ 2

ʸ»úÎó¤ä¥Ù¥¯¥È¥ë¤Ç¤¢¤ëkey¤¬¡¢ keymap¤Ç»ØÄꤵ¤ì¤¿¥×¥ì¥Õ¥£¥Ã¥¯¥¹¥­¡¼¤ËÂФ·¤ÆÀµ¤·¤¤¥­¡¼Îó¤Ç¤Ê¤±¤ì¤Ð¡¢ key¤Ï¡ØÄ¹¤¹¤®¤ë¡Ù¤Î¤Ç¤¢¤Ã¤Æ¡¢ 1¤Ä¤Î¥­¡¼Îó¤Ë¼ý¤Þ¤é¤Ê¤¤Í¾Ê¬¤Ê¥¤¥Ù¥ó¥È¤¬ËöÈø¤Ë¤¢¤ë¡£ ¤½¤Î¾ì¹ç¡¢Ìá¤êÃͤϿô¤Ç¤¢¤ê¡¢ ´°Á´¤Ê¥­¡¼¤ò¹½À®¤¹¤ëkey¤ÎÀèÆ¬¤«¤é¤Î¥¤¥Ù¥ó¥È¿ô¤òɽ¤¹¡£

accept-defaults¤¬nil°Ê³°¤Ç¤¢¤ë¤È¡¢ lookup-key¤Ï¡¢key¤ÎÆÃÄê¤Î¥¤¥Ù¥ó¥È¤Ë ÂФ¹¤ë¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤À¤±¤Ç¤Ê¤¯¡¢ ¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤â¹Íθ¤¹¤ë¡£ ¤µ¤â¤Ê¤±¤ì¤Ð¡¢lookup-key¤Ï¡¢ key¤ÎÆÃÄê¤Î¥¤¥Ù¥ó¥È¤ËÂФ¹¤ë¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤À¤±¤òÊó¹ð¤·¡¢ ÆÃ¤Ë»ØÄꤷ¤Ê¤¤¸Â¤ê¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ï̵»ë¤¹¤ë¡£ ¡Ê¤½¤ì¤Ë¤Ï¡¢key¤ÎÍ×ÁǤȤ·¤Æt¤òÍ¿¤¨¤ë¡£ Format of Keymaps¤ò»²¾È¡£¡Ë

key¤Ë¥á¥¿Ê¸»ú¤¬´Þ¤Þ¤ì¤ë¾ì¹ç¡¢ Åö³ºÊ¸»ú¤Ï°ÅÌۤΤ¦¤Á¤Ë2ʸ»ú¤ÎÎó¡¢ ¤Ä¤Þ¤ê¡¢meta-prefix-char¤ÎÃͤÈÂбþ¤¹¤ëÈó¥á¥¿Ê¸»ú ¤ËÃÖ¤­´¹¤¨¤é¤ì¤ë¡£ ¤·¤¿¤¬¤Ã¤Æ¡¢¤Ä¤®¤ÎºÇ½é¤ÎÎã¤Ï¡¢2ÈÖÌܤÎÎã¤ËÊÑ´¹¤·¤Æ½èÍý¤µ¤ì¤ë¡£

(lookup-key (current-global-map) "\M-f")
    ⇒ forward-word
(lookup-key (current-global-map) "\ef")
    ⇒ forward-word

read-key-sequence¤È°Û¤Ê¤ê¡¢ ¤³¤Î´Ø¿ô¤Ï¡¢¾ðÊó¤ò·çÍ¤ë¤è¤¦¤Ë¤Ï»ØÄꤵ¤ì¤¿¥¤¥Ù¥ó¥È¤ò½¤Àµ¤·¤Ê¤¤ ¡Êsee Key Sequence Input¡Ë¡£ ÆÃ¤Ë¡¢Ê¸»ú¤ò¾®Ê¸»ú¤ËÊÑ´¹¤·¤¿¤ê¡¢ ¥É¥é¥Ã¥°¥¤¥Ù¥ó¥È¤ò¥¯¥ê¥Ã¥¯¥¤¥Ù¥ó¥È¤ËÊÑ´¹¤·¤¿¤ê¤Ï¤·¤Ê¤¤¡£

¥³¥Þ¥ó¥É: undefined

¥­¡¼¤ò̤ÄêµÁ¤Ë¤¹¤ë¤¿¤á¤Ë¥­¡¼¥Þ¥Ã¥×¤Ç»È¤ï¤ì¤ë¡£ ding¤ò¸Æ¤Ó½Ð¤¹¤¬¡¢¥¨¥é¡¼¤Ë¤Ï¤Ê¤é¤Ê¤¤¡£

Function: key-binding key &optional accept-defaults

¤³¤Î´Ø¿ô¤Ï¡¢¤¹¤Ù¤Æ¤Î³èÀ­¤Ê¥­¡¼¥Þ¥Ã¥×¤ò»î¤·¤Æ key¤ËÂФ¹¤ë¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÊÖ¤¹¡£ ¥­¡¼¥Þ¥Ã¥×¤Çkey¤¬Ì¤ÄêµÁ¤Ç¤¢¤ë¤È·ë²Ì¤Ïnil¡£

°ú¿ôaccept-defaults¤Ï¡¢lookup-key¡Ê¾åµ­¡Ë¤ÈƱÍͤˡ¢ ¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÄ´¤Ù¤ë¤«¤É¤¦¤«À©¸æ¤¹¤ë¡£

key¤¬Ê¸»úÎó¤Ç¤â¥Ù¥¯¥È¥ë¤Ç¤â¤Ê¤¤¤È¥¨¥é¡¼¤òÄÌÃΤ¹¤ë¡£

(key-binding "\C-x\C-f")
    ⇒ find-file
Function: local-key-binding key &optional accept-defaults

¤³¤Î´Ø¿ô¤Ï¡¢¸½ºß¤Î¥í¡¼¥«¥ë¥­¡¼¥Þ¥Ã¥×¤«¤é key¤ËÂФ¹¤ë¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÊÖ¤¹¡£ ̤ÄêµÁ¤Ê¤é¤Ðnil¤òÊÖ¤¹¡£

°ú¿ôaccept-defaults¤Ï¡¢lookup-key¡Ê¾åµ­¡Ë¤ÈƱÍͤˡ¢ ¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÄ´¤Ù¤ë¤«¤É¤¦¤«À©¸æ¤¹¤ë¡£

Function: global-key-binding key &optional accept-defaults

¤³¤Î´Ø¿ô¤Ï¡¢¸½ºß¤Î¥°¥í¡¼¥Ð¥ë¥­¡¼¥Þ¥Ã¥×¤«¤é key¤ËÂФ¹¤ë¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÊÖ¤¹¡£ ̤ÄêµÁ¤Ê¤é¤Ðnil¤òÊÖ¤¹¡£

°ú¿ôaccept-defaults¤Ï¡¢lookup-key¡Ê¾åµ­¡Ë¤ÈƱÍͤˡ¢ ¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÄ´¤Ù¤ë¤«¤É¤¦¤«À©¸æ¤¹¤ë¡£

Function: minor-mode-key-binding key &optional accept-defaults

¤³¤Î´Ø¿ô¤Ï¡¢¤¹¤Ù¤Æ¤Î¥ª¥ó¤Ë¤Ê¤Ã¤Æ¤¤¤ë¥Þ¥¤¥Ê¥â¡¼¥É¤Ë¤ª¤±¤ë key¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Î¥ê¥¹¥È¤òÊÖ¤¹¡£ ¤è¤êÀµ³Î¤Ë¤Ï¡¢ÂÐ(modename . binding)¤òÍ×ÁǤȤ¹¤ë Ï¢Áۥꥹ¥È¤òÊÖ¤¹¡£ ¤³¤³¤Ç¡¢modename¤Ï¥Þ¥¤¥Ê¥â¡¼¥É¤ò¥ª¥ó¤Ë¤¹¤ëÊÑ¿ô¤Ç¤¢¤ê¡¢ binding¤ÏÅö³º¥â¡¼¥É¤Ë¤ª¤±¤ëkey¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ç¤¢¤ë¡£ key¤Ë¥Þ¥¤¥Ê¥â¡¼¥É¤Ç¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤¬¤Ê¤±¤ì¤Ð¡¢ ÃͤÏnil¤Ç¤¢¤ë¡£

ºÇ½é¤Ë¤ß¤Ä¤«¤Ã¤¿¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤¬¥×¥ì¥Õ¥£¥Ã¥¯¥¹¤ÎÄêµÁ ¡Ê¥­¡¼¥Þ¥Ã¥×¤«¥­¡¼¥Þ¥Ã¥×¤È¤·¤Æ¤Î¥·¥ó¥Ü¥ë¡Ë¤Ç¤Ê¤±¤ì¤Ð¡¢ »Ä¤ê¤Î¥Þ¥¤¥Ê¥â¡¼¥É¤«¤é¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ï´°Á´¤Ë±£¤µ¤ì¤Æ¤·¤Þ¤¦¤Î¤Ç ¤½¤ì¤é¤Ï¾Êά¤¹¤ë¡£ ƱÍͤˡ¢¥×¥ì¥Õ¥£¥Ã¥¯¥¹¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ë ³¤¯Èó¥×¥ì¥Õ¥£¥Ã¥¯¥¹¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤â¾Êά¤¹¤ë¡£

°ú¿ôaccept-defaults¤Ï¡¢lookup-key¡Ê¾åµ­¡Ë¤ÈƱÍͤˡ¢ ¥Ç¥Õ¥©¥ë¥È¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤òÄ´¤Ù¤ë¤«¤É¤¦¤«À©¸æ¤¹¤ë¡£

Variable: meta-prefix-char

¤³¤ÎÊÑ¿ô¤Ï¡¢¥á¥¿¥×¥ì¥Õ¥£¥Ã¥¯¥¹Ê¸»ú¤Îʸ»ú¥³¡¼¥É¤Ç¤¢¤ë¡£ ¥á¥¿Ê¸»ú¤ò¥­¡¼¥Þ¥Ã¥×¤Çõº÷¤¹¤ë¤¿¤á¤Ë2ʸ»úÎó¤ËÊÑ´¹¤¹¤ë¤È¤­¤Ë»È¤ï¤ì¤ë¡£ ·ë²Ì¤¬Í­ÍѤǤ¢¤ë¤¿¤á¤Ë¤Ï¡¢ ¤³¤ÎÃͤϥץì¥Õ¥£¥Ã¥¯¥¹¥¤¥Ù¥ó¥È¡Êsee Prefix Keys¡Ë¤Ç¤¢¤ë¤Ù¤­¤Ç¤¢¤ë¡£ ¥Ç¥Õ¥©¥ë¥ÈÃͤÏ27¡¢ESC¤ÎASCII¥³¡¼¥É¤Ç¤¢¤ë¡£

meta-prefix-char¤ÎÃͤ¬27¤Ç¤¢¤ë¸Â¤ê¡¢ ¥­¡¼Ãµº÷¤Ç¤ÏM-b¤òESC b¤ËÊÑ´¹¤·¡¢ Ä̾¤³¤ì¤Ï¥³¥Þ¥ó¥Ébackward-word¤ÈÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£ ¤·¤«¤·¡¢meta-prefix-char¤ËC-x¤Î¥³¡¼¥É¤Ç¤¢¤ë24¤òÀßÄꤹ¤ë¤È¡¢ Emacs¤ÏM-b¤òC-x b¤ËÊÑ´¹¤·¡¢ ¤½¤Îɸ½à¤Î¥Ð¥¤¥ó¥Ç¥£¥ó¥°¤Ï¥³¥Þ¥ó¥Éswitch-to-buffer¤Ç¤¢¤ë¡£ ¤³¤ì¤ò°Ê²¼¤Ë¼¨¤¹¡£

meta-prefix-char                    ; ¥Ç¥Õ¥©¥ë¥ÈÃÍ
     ⇒ 27
(key-binding "\M-b")
     ⇒ backward-word
?\C-x                               ; ʸ»ú¤Îɽ¼¨É½¸½
     ⇒ 24
(setq meta-prefix-char 24)
     ⇒ 24      
(key-binding "\M-b")
    ⇒ switch-to-buffer            ; ¤³¤³¤ÇM-b¤ÈÂǤĤÈ
                                    ; C-x b¤ÈÂÇ¤Ä¤Î¤ÈÆ±¤¸

(setq meta-prefix-char 27)          ; º®Íð¤òÈò¤±¤ë¤¿¤á¤Ë
     ⇒ 27                         ; ¥Ç¥Õ¥©¥ë¥ÈÃͤËÌ᤹¡ª