Next: Pseudo Arguments, Previous: Define, Up: Definitions [Contents][Index]
¥Þ¥¯¥í¤Ï°ú¿ô¤ò¼è¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£nÈÖÌܤΰú¿ô¤ÏŸ³«Íѥƥ¥¹¥È¤ÎÃæ¤Ç¤Ï
$n
¤È¤·¤Æ½ñ¤¼¨¤µ¤ì¡¢¥Þ¥¯¥í¤¬Å¸³«¤µ¤ì¤ë¤È¤¤ËnÈÖÌܤÎ
¼Â°ú¿ô¡Êactual argument¡Ë¤ËÃÖ¤´¹¤¨¤é¤ì¤Þ¤¹¡£
¼¡¤ÎÎã¤Ï2¤Ä¤Î°ú¿ô¤ò¼è¤ë¥Þ¥¯¥í¤Ç¤¹¡£2¤Ä¤Î°ú¿ô¤Î½çÈÖ¤òñ¤Ë¸ò´¹¤·¤Þ¤¹¡£
define(`exch', `$2, $1') ⇒ exch(arg1, arg2) ⇒arg2, arg1
¤³¤ì¤Ïdefine
¤Ø¤Î°ú¿ô¤Î½çÈÖ¤òµÕ¤Ë¤·¤¿¤¤¤È¤¤Ê¤É¤Ë»È¤¨¤Þ¤¹¡£
define(`exch', `$2, $1') ⇒ define(exch(``expansion text'', ``macro'')) ⇒ macro ⇒expansion text
Æó½Å¤Ë¤Ê¤Ã¤¿°úÍÑÉä¤ÎÀâÌÀ¤Ë¤Ä¤¤¤Æ¤ÏSee Quoting Arguments¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£
GNU m4
¤Ç¤Ï‘$’¤Ë³¤¯¿ô»ú¤ÏÊ£¿ô¤Î·å¤Ç¤â¤è¤¤¤Î¤Ç¡¢
¥Þ¥¯¥í¤Ï¤¤¤¯¤Ä¤Ç¤â°ú¿ô¤ò¼è¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£
¤³¤ì¤È°ã¤¤UNIX¤Îm4
¤Ç¤Ï1·å¤Î¿ô»ú¤·¤«Ç§¼±¤µ¤ì¤Þ¤»¤ó¡£
ÆÃ¼ì¤Ê¥±¡¼¥¹¤È¤·¤Æ¡¢0ÈÖÌܤΰú¿ô$0
¤Ï¾ï¤Ë¸½ºßŸ³«¤µ¤ì¤Æ¤¤¤ë¥Þ¥¯¥í¤Î̾Á°
¤È¤Ê¤ê¤Þ¤¹¡£
define(`test', ``Macro name: $0'') ⇒ test ⇒Macro name: test
¥¯¥©¡¼¥È¤µ¤ì¤¿¥Æ¥¥¹¥È¤òŸ³«¸å¤Î¥Æ¥¥¹¥È¤Ë´Þ¤á¤¿¤¤»þ¤Ï¡¢ ¥¯¥©¡¼¥È¤ÏÆþ¤ì»Ò¤Ë¤Ç¤¤ë¤³¤È¤ò»×¤¤½Ð¤·¤Þ¤·¤ç¤¦¡£¤·¤¿¤¬¤Ã¤Æ¡¢
define(`foo', `This is macro `foo'.') ⇒ foo ⇒This is macro foo.
Ÿ³«¤µ¤ì¤¿¥Æ¥¥¹¥È¤Ë´Þ¤Þ¤ì¤ë‘foo’¤Ï¡¢ ¥¯¥©¡¼¥È¤µ¤ì¤¿Ê¸»úÎó¡Êquoted string¡Ë¤Ç¤¢¤ê̾Á°¡Êname¡Ë¤Ç¤Ï¤Ê¤¤¤Î¤Ç¡¢ ºÆÁöºº¤Ë¤è¤Ã¤ÆÅ¸³«¤Ï¤µ¤ì¤º¡¢ °úÍÑÉ䤬¤Ï¤®¼è¤é¤ì¤ë¤À¤±¤Ç¤¹(see Syntax)¡£