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4.1 Flex¤ÈC

Flex¤ËÂФ¹¤ëC¤Î¼çÍפʥ¤¥ó¥¿¡¼¥Õ¥§¥¤¥¹¤Ï¡¢ °Ê²¼¤Ëµó¤²¤ë¥ë¡¼¥Á¥ó¤ÈÊÑ¿ô¤Ë¤è¤ë¤â¤Î¤Ç¤¹¡£ °Ê²¼¤ÎÀá¤òÆÉ¤àºÝ¤Ë¤Ï¡¢ ¤¤¤¯¤Ä¤«¤ÎºÙ¤«¤ÊÉôʬ¤ÇFlex¤ÈLex¤È¤Î´Ö¤ËÁê°ãÅÀ¤¬¤¢¤ë¤È¤¤¤¦¤³¤È¤ò°Õ¼±¤·¤Æ¤ª¤¤¤Æ¤¯¤À¤µ¤¤¡£ Lex¤¬Ä󶡤·¤Æ¤¤¤Ê¤¤´Ø¿ô¤¬¤¤¤¯¤Ä¤«¤¢¤ê¤Þ¤¹¤·¡¢ Àë¸À¤ÎÆâÍÆ¤¬°ã¤¦¤â¤Î¤â¤¢¤ê¤Þ¤¹¡£ ¤³¤¦¤·¤¿Áê°ãÅÀ¤Ï¡¢ Ä̾ïÂ礭¤ÊÌäÂê¤Ë¤Ï¤Ê¤ê¤Þ¤»¤ó¡£ ¤È¤¤¤¦¤Î¤Ï¡¢ Áê°ã¤Î¤¢¤ë´Ø¿ô¤Ï°ìÈÌŪ¤Ë¤Ï¤¢¤Þ¤ê»È¤ï¤ì¤Æ¤¤¤Ê¤¤¤«¤é¤Ç¤¹¡£ Áê°ãÅÀ¤Ë´Ø¤¹¤ë¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï¡¢ Flex and Lex¤ª¤è¤ÓFlex and POSIX¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£


Footnotes

(7)

ÌõÃí¡§Flex 2.5¤Ç¤Ï¡¢ ‘%pointer’¤È‘%array’¤Ë¤è¤ê¡¢ yytext¤Î·¿¤òÁªÂò¤Ç¤­¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿¡£ ‘%pointer’¤ò»ØÄꤷ¤¿¾ì¹ç¤Ïchar *yytext¡¢ ‘%array’¤ò»ØÄꤷ¤¿¾ì¹ç¤Ïchar yytext[YYLMAX]¤È¤Ê¤ê¤Þ¤¹¡£ ¥Ç¥Õ¥©¥ë¥È¤Ï‘%pointer’¤Ç¤¹¡£ ‘%array’¤ò»ØÄꤷ¤¿¾ì¹ç¤ÎÇÛÎó¤Î¥µ¥¤¥º¤Ï¡¢ YYLMAX¤òºÆÄêµÁ¤¹¤ë¤³¤È¤Ë¤è¤Ã¤ÆÊѹ¹²Äǽ¤Ç¤¹¡£

(8)

ÌõÃí¡§Flex 2.5¤Ç¤Ï¡¢ ‘%option noyywrap’¤¬»ØÄꤵ¤ì¤Ê¤¤¸Â¤ê¡¢ yywrap()¤Ï´Ø¿ô¤Ç¤¹¡£ ºÆÄêµÁ¤ò¤¹¤ë¤Î¤Ë¡¢ #undef¤ÇÄêµÁ²ò½ü¤¹¤ëɬÍפϤ¢¤ê¤Þ¤»¤ó¡£

(9)

ÌõÃí¡§Flex 2.5¤Ç¤Ï¡¢ ‘%array’¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¤Ï¡¢ unput()¤Ïyytext¤ÎÆâÍÆ¤òÇ˲õ¤·¤Þ¤»¤ó¡£

(10)

ÌõÃí¡§Flex 2.5¤Ç¤Ï¡¢ yyin¤òÊѹ¹¤·¤¿¸å¤ËYY_NEW_FILE¤ò¼Â¹Ô¤¹¤ëɬÍפϤʤ¯¤Ê¤ê¤Þ¤·¤¿¡£


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