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[linuxjm/LDP_man-pages.git] / draft / man3 / regex.3

.\" Copyright (C), 1995, Graeme W. Wilford. (Wilf.)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Wed Jun 14 16:10:28 BST 1995 Wilf. (G.Wilford@ee.surrey.ac.uk)
.\" Tiny change in formatting - aeb, 950812
.\" Modified 8 May 1998 by Joseph S. Myers (jsm28@cam.ac.uk)
.\"
.\" Japanese Version Copyright (c) 1998 Takatsugu Nokubi
.\"     all rights reserved.
.\" Translated 1998-06-30, Takatsugu Nokubi
.\" Updated & Modified 2001-11-05, Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated & Modified 2005-02-24, Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated 2008-08-02, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v3.05
.\"
.\"WORD:        bitwise-or              ¥Ó¥Ã¥È¤´¤È¤ÎOR
.\"WORD:        element                 (¹½Â¤ÂÎ)Í×ÁÇ
.\"WORD:        collating element       ¾È¹ç½ç½ø¤ÎÍ×ÁÇ
.\"
.\" show the synopsis section nicely
.de xx
.in \\n(INu+\\$1
.ti -\\$1
..
.TH REGEX 3 2008-05-29 "GNU" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O regcomp, regexec, regerror, regfree \- POSIX regex functions
regcomp, regexec, regerror, regfree \- POSIX regex ´Ø¿ô
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.nf
.B #include <sys/types.h>
.B #include <regex.h>

.BI "int regcomp(regex_t *" preg ", const char *" regex ", int " cflags );

.BI "int regexec(const regex_t *" preg ", const char *" string \
", size_t " nmatch ,
.BI "            regmatch_t " pmatch[] ", int " eflags );

.BI "size_t regerror(int " errcode ", const regex_t *" preg ", char *" errbuf ,
.BI "                size_t " errbuf_size );

.BI "void regfree(regex_t *" preg );
.fi
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O .SS "POSIX Regex Compiling"
.SS "POSIX regex ¥³¥ó¥Ñ¥¤¥ë"
.\"O .BR regcomp ()
.\"O is used to compile a regular expression into a form that is suitable
.\"O for subsequent
.\"O .BR regexec ()
.\"O searches.
.BR regcomp ()
¤Ï¡¢Àµµ¬É½¸½¤ò¥³¥ó¥Ñ¥¤¥ë¤·¤Æ¡¢
.BR regexec ()
¤Ç¤Î¸¡º÷½èÍý¤ËŬ¹ç¤¹¤ë·ÁÂ֤ˤ¹¤ë¡£

.\"O .BR regcomp ()
.\"O is supplied with
.\"O .IR preg ,
.\"O a pointer to a pattern buffer storage area;
.\"O .IR regex ,
.\"O a pointer to the null-terminated string and
.\"O .IR cflags ,
.\"O flags used to determine the type of compilation.
.BR regcomp ()
¤Ï¥Ñ¥¿¡¼¥ó¤òµ­²±¤¹¤ë¥Ð¥Ã¥Õ¥¡¤Ø¤Î¥Ý¥¤¥ó¥¿
.IR preg ¡¢
¥Ì¥ëʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó
.IR regex ¡¢
¤½¤·¤Æ¥³¥ó¥Ñ¥¤¥ë¤Î·Á¼°¤ò·è¤á¤ë¤¿¤á¤Î¥Õ¥é¥°
.I cflag
¤ò°ú¿ô¤Ëȼ¤¦¡£

.\"O All regular expression searching must be done via a compiled pattern
.\"O buffer, thus
.\"O .BR regexec ()
.\"O must always be supplied with the address of a
.\"O .BR regcomp ()
.\"O initialized pattern buffer.
Á´¤Æ¤ÎÀµµ¬É½¸½¸¡º÷¤Ï¡¢¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¥Ñ¥¿¡¼¥ó¤Ë¤è¤Ã¤Æ¹Ô¤ï¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
¤è¤Ã¤Æ¡¢
.BR regexec ()
¤Ë»ØÄꤹ¤ë¤Î¤Ï¡¢É¬¤º
.RB ( regcomp ()
¤Ë¤è¤Ã¤Æ¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿) ¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤Ø¤Î¥¢¥É¥ì¥¹¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£

.\"O .I cflags
.\"O may be the
.\"O .RB bitwise- or
.\"O of one or more of the following:
.I cflags
¤Ë¤Ï°Ê²¼¤Ë¼¨¤¹Äê¿ô°ì¤Ä°Ê¾å¤Î¥Ó¥Ã¥È¤´¤È¤Î OR (bitwise-or) ¤ò»ØÄꤹ¤ë¡£
.TP
.B REG_EXTENDED
.\"O Use
.\"O .B POSIX
.\"O Extended Regular Expression syntax when interpreting
.\"O .IR regex .
.\"O If not set,
.\"O .B POSIX
.\"O Basic Regular Expression syntax is used.
.I regex
¤Ë
.B POSIX
³ÈÄ¥Àµµ¬É½¸½¤ò»ÈÍѤ¹¤ë¡£¤â¤·¤³¤Î¥Õ¥é¥°¤¬ÀßÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢
.B POSIX
ɸ½àÀµµ¬É½¸½¤¬»È¤ï¤ì¤ë¡£
.TP
.B REG_ICASE
.\"O Do not differentiate case.
.\"O Subsequent
.\"O .BR regexec ()
.\"O searches using this pattern buffer will be case insensitive.
Âçʸ»ú¾®Ê¸»ú¤Î°ã¤¤¤ò̵»ë¤¹¤ë¡£¤³¤Î¥Õ¥é¥°¤ò»ØÄꤷ¤Æ¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿
¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤òÍѤ¤¤Æ
.BR regexec ()
´Ø¿ô¤ò¸Æ¤Ó½Ð¤¹¤È¡¢Âçʸ»ú¾®Ê¸»ú¤Î¶èÊ̤òÉÕ¤±¤º¤Ë¸¡º÷¤¬¹Ô¤ï¤ì¤ë¡£
.TP
.B REG_NOSUB
.\"O Support for substring addressing of matches is not required.
.\"O The
.\"O .I nmatch
.\"O and
.\"O .I pmatch
.\"O arguments to
.\"O .BR regexec ()
.\"O are ignored if the pattern buffer supplied was compiled with this flag set.
¤³¤Î¥Õ¥é¥°¤òÀßÄꤷ¤Æ¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤¬
.BR regexec ()
¤Î°ú¿ô¤Ë»ØÄꤵ¤ì¤ë¤È¡¢°ú¤­¿ô
.IR nmatch ,
.I pmatch
¤¬Ìµ»ë¤µ¤ì¤ë¡£
.TP
.B REG_NEWLINE
.\"O Match-any-character operators don't match a newline.
Á´¤Æ¤Îʸ»ú¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ª¥Ú¥ì¡¼¥¿¤Ë²þ¹Ô¤ò¥Þ¥Ã¥Á¤µ¤»¤Ê¤¤¡£

.\"O A nonmatching list
.\"O .RB ( [^...] )
.\"O not containing a newline does not match a newline.
²þ¹Ô¤ò´Þ¤Þ¤Ê¤¤Èó¥Þ¥Ã¥Á¥ó¥°Ê¸»ú¥ê¥¹¥È
.RB ( [^...] )
¤Ë²þ¹Ô¤ò¥Þ¥Ã¥Á¤µ¤»¤Ê¤¤¡£

.\"O Match-beginning-of-line operator
.\"O .RB ( ^ )
.\"O matches the empty string immediately after a newline, regardless of
.\"O whether
.\"O .IR eflags ,
.\"O the execution flags of
.\"O .BR regexec (),
.\"O contains
.\"O .BR REG_NOTBOL .
.BR regexec ()
¤Î¼Â¹Ô»þ¤Ë»ØÄꤹ¤ë¥Õ¥é¥°
.I eflags
¤Ë
.B REG_NOTBOL
¤ò´Þ¤à¤«¤É¤¦¤«¤Ë¤«¤«¤ï¤é¤º¡¢¹ÔƬ¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ª¥Ú¥ì¡¼¥¿
.RB ( ^ )
¤ò²þ¹Ôľ¸å¤Î¶õʸ»úÎó¤Ë¥Þ¥Ã¥Á¤µ¤»¤ë¡£

.\"O Match-end-of-line operator
.\"O .RB ( $ )
.\"O matches the empty string immediately before a newline, regardless of
.\"O whether
.\"O .I eflags
.\"O contains
.\"O .BR REG_NOTEOL .
.I eflags
¤Ë
.B REG_NOTEOL
¤ò´Þ¤à¤«¤É¤¦¤«¤Ë¤«¤«¤ï¤é¤º¡¢¹ÔËö¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ª¥Ú¥ì¡¼¥¿
.RB ( $ )
¤ò²þ¹ÔľÁ°¤Î¶õʸ»úÎó¤Ë¥Þ¥Ã¥Á¤µ¤»¤ë¡£
.\"O .SS "POSIX Regex Matching"
.SS "POSIX regex ¥Þ¥Ã¥Á¥ó¥°"
.\"O .BR regexec ()
.\"O is used to match a null-terminated string
.\"O against the precompiled pattern buffer,
.\"O .IR preg .
.BR regexec ()
¤Ï¡¢
¥×¥ê¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡
.I preg
¤ò¥Ì¥ëʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó¤Ë¥Þ¥Ã¥Á¤µ¤»¤ë¡£
.\"O .I nmatch
.\"O and
.\"O .I pmatch
.\"O are used to provide information regarding the location of any matches.
.I nmatch
¤È
.I pmatch
¤Ï¥Þ¥Ã¥Á¥ó¥°¤Î°ÌÃ֤˴ؤ¹¤ë¾ðÊó¤ò¼èÆÀ¤¹¤ë¤Î¤ËÍѤ¤¤é¤ì¤ë¡£
.\"O .I eflags
.\"O may be the
.\"O .RB bitwise- or
.\"O of one or both of
.\"O .B REG_NOTBOL
.\"O and
.\"O .B REG_NOTEOL
.\"O which cause changes in matching behavior described below.
.I eflags
¤Ë¤Ï
.B REG_NOTBOL
¤È
.B REG_NOTEOL
¤Î¤É¤Á¤é¤«¡¢¤â¤·¤¯¤ÏξÊý¤Î¥Ó¥Ã¥È¤´¤È¤Î
.BR OR " (bitwise-" or )
¤ò»ØÄꤷ¡¢°Ê²¼¤ÇÀâÌÀ¤¹¤ë¤è¤¦¤Ë¥Þ¥Ã¥Á¥ó¥°Æ°ºî¤òÊѲ½¤µ¤»¤ë¡£
.TP
.\"O .B REG_NOTBOL
.\"O The match-beginning-of-line operator always fails to match (but see the
.\"O compilation flag
.\"O .B REG_NEWLINE
.\"O above)
.B REG_NOTBOL
¹ÔƬ¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ª¥Ú¥ì¡¼¥¿¤Ï¡¢É¬¤º¥Þ¥Ã¥Á¤Ë¼ºÇÔ¤¹¤ë (¥³¥ó¥Ñ¥¤¥ë»þ¤Î¥Õ¥é¥°
.B REG_NEWLINE
¤Î¹àÌܤ⻲¾È)¡£
.\"O This flag may be used when different portions of a string are passed to
.\"O .BR regexec ()
.\"O and the beginning of the string should not be interpreted as the
.\"O beginning of the line.
¤³¤Î¥Õ¥é¥°¤Ï¡¢Ê£¿ô¹Ô¤Ë¤Þ¤¿¤¬¤ëʸ»úÎó¤ò
.BR regexec ()
¤Ç¸¡º÷¤¹¤ëºÝ¤Ë¡¢Ê¸»úÎó¤ÎÀèƬ¤ò¹Ô¤ÎÀèƬ¤È¤·¤Æ²ò¼á¤µ¤»¤Ê¤¤¾ì¹ç¤ËÍѤ¤¤ë¡£
.TP
.\"O .B REG_NOTEOL
.\"O The match-end-of-line operator always fails to match (but see the
.\"O compilation flag
.\"O .B REG_NEWLINE
.\"O above)
.B REG_NOTEOL
¹ÔËö¤Ë¥Þ¥Ã¥Á¤¹¤ë¥ª¥Ú¥ì¡¼¥¿¤Ï¡¢É¬¤º¥Þ¥Ã¥Á¤Ë¼ºÇÔ¤¹¤ë (¥³¥ó¥Ñ¥¤¥ë»þ¤Î¥Õ¥é¥°
.B REG_NEWLINE
¤Î¹àÌܤ⻲¾È)¡£
.\"O .SS "Byte Offsets"
.SS ¥Ð¥¤¥È¥ª¥Õ¥»¥Ã¥È
.\"O Unless
.\"O .B REG_NOSUB
.\"O was set for the compilation of the pattern buffer, it is possible to
.\"O obtain substring match addressing information.
¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤Î¥³¥ó¥Ñ¥¤¥ë»þ¤Ë
.B REG_NOSUB
¤¬ÀßÄꤵ¤ì¤Ê¤¤¾ì¹ç¤Ï¡¢Éôʬʸ»úÎó¤Î¥Þ¥Ã¥Á¥ó¥°°ÌÃÖ¾ðÊó¤òÆÀ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
.\"O .I pmatch
.\"O must be dimensioned to have at least
.\"O .I nmatch
.\"O elements.
.I pmatch
¤Ï¡¢¾¯¤Ê¤¯¤È¤â
.I nmatch
¤ÎÂ礭¤µ¤ò»ý¤Ä¤è¤¦¤Ë»ØÄꤷ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
.\"O These are filled in by
.\"O .BR regexec ()
.\"O with substring match addresses.
.\"O Any unused structure elements
.\"O will contain the value \-1.
.BR regexec ()
¤Î¼Â¹Ô¤Ë¤è¤Ã¤Æ¡¢¤½¤ì¤é¤ËÉôʬʸ»úÎó¥Þ¥Ã¥Á¥ó¥°°ÌÃÖ¾ðÊó¤¬ÂåÆþ¤µ¤ì¤ë¡£
̤»ÈÍѤι½Â¤ÂÎÍ×ÁÇ¤Ë¤Ï \-1 ¤¬ÃͤȤ·¤ÆÂåÆþ¤µ¤ì¤ë¡£

.\"O The
.\"O .I regmatch_t
.\"O structure which is the type of
.\"O .I pmatch
.\"O is defined in
.\"O .IR <regex.h> .
.I pmatch
¤Î·¿¤Ç¤¢¤ë
.I regmatch_t
¹½Â¤ÂΤϡ¢
.I <regex.h>
Æâ¤ÇÄêµÁ¤µ¤ì¤ë¡£

.in +4n
.nf
typedef struct {
    regoff_t rm_so;
    regoff_t rm_eo;
} regmatch_t;
.fi
.in

.\"O Each
.\"O .I rm_so
.\"O element that is not \-1 indicates the start offset of the next largest
.\"O substring match within the string.
.\"O The relative
.\"O .I rm_eo
.\"O element indicates the end offset of the match,
.\"O which is the offset of the first character after the matching text.
¹½Â¤ÂÎÍ×ÁÇ
.I rm_so
¤ÎÃͤ¬ \-1 ¤Ç¤Ê¤¤¾ì¹ç¡¢¤½¤ì¤Ïʸ»úÎóÆâ¤Ç¤Î¼¡¤ÎºÇÂç¤Î¥Þ¥Ã¥Á¥ó¥°Éôʬ¤Î³«»Ï
¥ª¥Õ¥»¥Ã¥È°ÌÃÖ¤ò¼¨¤¹¡£¤½¤ì¤ËÂФ·¡¢¹½Â¤ÂÎÍ×ÁÇ
.I rm_eo
¤Ï¥Þ¥Ã¥Á¥ó¥°Éôʬ¤Î½ªÎ»¥ª¥Õ¥»¥Ã¥È°ÌÃÖ¤ò¼¨¤·¡¢
¥Þ¥Ã¥Á¥ó¥°Éôʬ¤Îľ¸å¤Îʸ»ú¤Î¥ª¥Õ¥»¥Ã¥È°ÌÃÖ¤¬»ÈÍѤµ¤ì¤ë¡£
.\"O .SH "POSIX Error Reporting"
.SS "POSIX ¥¨¥é¡¼¥ì¥Ý¡¼¥È"
.\"O .BR regerror ()
.\"O is used to turn the error codes that can be returned by both
.\"O .BR regcomp ()
.\"O and
.\"O .BR regexec ()
.\"O into error message strings.
.BR regerror ()
¤Ï¡¢
.BR regcomp ()
¤È
.BR regexec ()
¤Î¼Â¹Ô¤Ë¤è¤Ã¤ÆÆÀ¤é¤ì¤ë¥¨¥é¡¼¥³¡¼¥É¤«¤é¡¢¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸Ê¸»úÎó¤ò
ÆÀ¤ë¤Î¤ËÍѤ¤¤é¤ì¤ë¡£

.\"O .BR regerror ()
.\"O is passed the error code,
.\"O .IR errcode ,
.\"O the pattern buffer,
.\"O .IR preg ,
.\"O a pointer to a character string buffer,
.\"O .IR errbuf ,
.\"O and the size of the string buffer,
.\"O .IR errbuf_size .
.BR regerror ()
¤Ï¥¨¥é¡¼¥³¡¼¥É
.IR errcode ¡¢
¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡
.IR preg ¡¢
ʸ»úÎó¥Ð¥Ã¥Õ¥¡¤Ø¤Î¥Ý¥¤¥ó¥¿
.IR errbuf ¡¢
ʸ»úÎó¥Ð¥Ã¥Õ¥¡¤Î¥µ¥¤¥º
.I errbuf_size
¤ò°ú¿ô¤Ë¤È¤ë¡£
.\"O It returns the size of the
.\"O .I errbuf
.\"O required to contain the null-terminated error message string.
.\"O If both
.\"O .I errbuf
.\"O and
.\"O .I errbuf_size
.\"O are nonzero,
.\"O .I errbuf
.\"O is filled in with the first
.\"O .I "errbuf_size \- 1"
.\"O characters of the error message and a terminating null.
¤³¤Î´Ø¿ô¤Ï¡¢¥Ì¥ëʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸Ê¸»úÎó¤ò³ÊǼ¤¹¤ë¤Î¤ËɬÍפÊ
.I errbuf
¤Î¥µ¥¤¥º¤òÊÖ¤¹¡£¤â¤·
.I errbuf
¤È
.I errbuf_size
¤ÎξÊý¤¬Èó 0 ÃͤǤ¢¤ì¤Ð¡¢
.I errbuf
¤Ë¤ÏºÇ½é¤Î
.I "errbuf_size \- 1"
ʸ»úʬ¤Ë¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤È½ªÃ¼¤Î¥Ì¥ëʸ»ú¤¬¼ý¤Þ¤ë¤è¤¦¤ËÂåÆþ¤µ¤ì¤ë¡£
.\"O .SS "POSIX Pattern Buffer Freeing"
.SS "POSIX ¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡²òÊü"
.\"O Supplying
.\"O .BR regfree ()
.\"O with a precompiled pattern buffer,
.\"O .I preg
.\"O will free the memory allocated to the pattern buffer by the compiling
.\"O process,
.\"O .BR regcomp ().
°ú¿ô¤Ë¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡
.I preg
¤òÍ¿¤¨¤Æ
.BR regfree ()
¤ò¸Æ¤Ó½Ð¤¹¤È¡¢
.BR regcomp ()
¤Ë¤è¤ë¥³¥ó¥Ñ¥¤¥ë»þ¤Ë¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿¥á¥â¥ê¤¬²òÊü¤µ¤ì¤ë¡£
.\"O .SH "RETURN VALUE"
.SH ÊÖ¤êÃÍ
.\"O .BR regcomp ()
.\"O returns zero for a successful compilation or an error code for failure.
.BR regcomp ()
¤Ï¡¢¥³¥ó¥Ñ¥¤¥ë¤ÎÀ®¸ù»þ¤Ë¤Ï 0 ¤òÊÖ¤·¡¢¼ºÇÔ»þ¤Ë¤Ï¥¨¥é¡¼¥³¡¼¥É¤òÊÖ¤¹¡£

.\"O .BR regexec ()
.\"O returns zero for a successful match or
.\"O .B REG_NOMATCH
.\"O for failure.
.BR regexec ()
¤Ï¡¢¥Þ¥Ã¥Á¥ó¥°¤ÎÀ®¸ù»þ¤Ë¤Ï 0 ¤òÊÖ¤·¡¢¼ºÇÔ»þ¤Ë¤Ï
.B REG_NOMATCH
¤òÊÖ¤¹¡£
.\"O .SH ERRORS
.SH ¥¨¥é¡¼
.\"O The following errors can be returned by
.\"O .BR regcomp ():
.BR regcomp ()
¤Ï°Ê²¼¤Î¥¨¥é¡¼¤òÊÖ¤¹¡£
.TP
.B REG_BADBR
.\"O Invalid use of back reference operator.
̵¸ú¤Ê¸åÊý»²¾È¥ª¥Ú¥ì¡¼¥¿¤Î»ÈÍÑ¡£
.TP
.B REG_BADPAT
.\"O Invalid use of pattern operators such as group or list.
¥°¥ë¡¼¥×¤ä¥ê¥¹¥È¤Ê¤É¤Î¡¢¥Ñ¥¿¡¼¥ó¥ª¥Ú¥ì¡¼¥¿¤Î̵¸ú¤Ê»ÈÍÑ¡£
.TP
.B REG_BADRPT
.\"O Invalid use of repetition operators such as using \(aq*\(aq
.\"O as the first character.
\(aq*\(aq ¤¬ºÇ½é¤Îʸ»ú¤È¤·¤Æ¤¯¤ë¤è¤¦¤Ê¡¢Ìµ¸ú¤Ê·«¤êÊÖ¤·¥ª¥Ú¥ì¡¼¥¿¤Î»ÈÍÑ¡£
.TP
.B REG_EBRACE
.\"O Un-matched brace interval operators.
¥¤¥ó¥¿¡¼¥Ð¥ë¥ª¥Ú¥ì¡¼¥¿
.B {}
(brace interval operators) ¤¬ÊĤ¸¤Æ¤¤¤Ê¤¤¡£
.TP
.B REG_EBRACK
.\"O Un-matched bracket list operators.
¥ê¥¹¥È¥ª¥Ú¥ì¡¼¥¿
.B []
(bracket list operators) ¤¬ÊĤ¸¤Æ¤¤¤Ê¤¤¡£
.TP
.B REG_ECOLLATE
.\"O Invalid collating element.
¾È¹ç½ç½ø¤ÎÍ×ÁÇ (collating element) ¤È¤·¤ÆÍ­¸ú¤Ç¤Ï¤Ê¤¤¡£

(ÌõÃí) ¾È¹ç½ç½ø¤ÎÍ×ÁÇ (collating element) ¤Ë¤Ä¤¤¤Æ¤Ï¡¢
.BR regex (7)
¤ò»²¾È¡£
.TP
.B REG_ECTYPE
.\"O Unknown character class name.
̤ÃΤΥ­¥ã¥é¥¯¥¿¥¯¥é¥¹Ì¾¡£
.TP
.B REG_EEND
.\"O Non specific error.
.\"O This is not defined by POSIX.2.
̤ÄêµÁ¥¨¥é¡¼¡£¤³¤ì¤Ï POSIX.2 ¤Ë¤ÏÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
.TP
.B REG_EESCAPE
.\"O Trailing backslash.
Àµµ¬É½¸½¤¬¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¤Ç½ª¤Ã¤Æ¤¤¤ë¡£

(ÌõÃí) ÆüËܸì´Ä¶­¤Î¾ì¹ç¡¢¥Ð¥Ã¥¯¥¹¥é¥Ã¥·¥å¤È¤Ê¤ë¤Ù¤­½ê¤¬±ßµ­¹æ¤Ç
ɽ¼¨¤µ¤ì¤ë¤³¤È¤¬¤¢¤ë¤¬¡¢¤³¤ì¤Ïñ¤Ëɽ¼¨¥Õ¥©¥ó¥È¤ÎÌäÂê¤Ç¡¢
ÆâÉôŪ¤Ë¤ÏƱ¤¸°ÕÌ£¤Ç¤¢¤ë¡£
.TP
.B REG_EPAREN
.\"O Un-matched parenthesis group operators.
¥°¥ë¡¼¥×¥ª¥Ú¥ì¡¼¥¿
.B ()
(parenthesis group operators) ¤¬ÊĤ¸¤Æ¤¤¤Ê¤¤¡£
.TP
.B REG_ERANGE
.\"O Invalid use of the range operator, e.g., the ending point of the range
.\"O occurs prior to the starting point.
̵¸ú¤ÊÈÏ°Ï¥ª¥Ú¥ì¡¼¥¿¤Î»ÈÍÑ¡£
Î㤨¤Ð¡¢ÈϰϤνªÎ»°ÌÃÖ¤¬³«»Ï°ÌÃÖ¤è¤ê¤âÁ°¤Ë¤¢¤ë¤è¤¦¤Ê¾ì¹ç¡£
.TP
.B REG_ESIZE
.\"O Compiled regular expression requires a pattern buffer larger than 64Kb.
.\"O This is not defined by POSIX.2.
Àµµ¬É½¸½¤Î¥³¥ó¥Ñ¥¤¥ë¤Ë¡¢64Kb °Ê¾å¤Î¥Ñ¥¿¡¼¥ó¥Ð¥Ã¥Õ¥¡¤¬É¬Íס£
¤³¤ì¤Ï POSIX.2 ¤Ë¤ÏÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
.TP
.B REG_ESPACE
.\"O The regex routines ran out of memory.
regex ¥ë¡¼¥Á¥ó¤¬¥á¥â¥ê¤ò»È¤¤¤Ï¤¿¤·¤Æ¤¤¤ë¡£
.TP
.B REG_ESUBREG
.\"O Invalid back reference to a subexpression.
¥µ¥Ö¥¨¥¯¥¹¥×¥ì¥Ã¥·¥ç¥ó
.RB \e (...\e )
(subexpression) ¤Ø¤Î̵¸ú¤Ê¸åÊý»²¾È¡£
.\"O .SH "CONFORMING TO"
.SH ½àµò
POSIX.1-2001.
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR grep (1),
.BR regex (7),
.\"O GNU regex manual
GNU regex ¥Þ¥Ë¥å¥¢¥ë