include/regex.h

   1 /*      $OpenBSD: regex.h,v 1.7 2012/12/05 23:19:57 deraadt Exp $       */
   2 /*      $NetBSD: regex.h,v 1.4.6.1 1996/06/10 18:57:07 explorer Exp $   */
   3
   4 /*-
   5  * Copyright (c) 1992 Henry Spencer.
   6  * Copyright (c) 1992, 1993
   7  *      The Regents of the University of California.  All rights reserved.
   8  *
   9  * This code is derived from software contributed to Berkeley by
  10  * Henry Spencer of the University of Toronto.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)regex.h     8.1 (Berkeley) 6/2/93
  37  */
  38
  39 #ifndef _REGEX_H_
  40 #define _REGEX_H_
  41
  42 #include <sys/types.h>
  43
  44 /* types */
  45 typedef off_t regoff_t;
  46
  47 typedef struct {
  48         int re_magic;
  49         size_t re_nsub;         /* number of parenthesized subexpressions */
  50         const char *re_endp;    /* end pointer for REG_PEND */
  51         struct re_guts *re_g;   /* none of your business :-) */
  52 } regex_t;
  53
  54 typedef struct {
  55         regoff_t rm_so;         /* start of match */
  56         regoff_t rm_eo;         /* end of match */
  57 } regmatch_t;
  58
  59 /* regcomp() flags */
  60 #define REG_BASIC       0000
  61 #define REG_EXTENDED    0001
  62 #define REG_ICASE       0002
  63 #define REG_NOSUB       0004
  64 #define REG_NEWLINE     0010
  65 #define REG_NOSPEC      0020
  66 #define REG_PEND        0040
  67 #define REG_DUMP        0200
  68
  69 /* regerror() flags */
  70 #define REG_NOMATCH      1
  71 #define REG_BADPAT       2
  72 #define REG_ECOLLATE     3
  73 #define REG_ECTYPE       4
  74 #define REG_EESCAPE      5
  75 #define REG_ESUBREG      6
  76 #define REG_EBRACK       7
  77 #define REG_EPAREN       8
  78 #define REG_EBRACE       9
  79 #define REG_BADBR       10
  80 #define REG_ERANGE      11
  81 #define REG_ESPACE      12
  82 #define REG_BADRPT      13
  83 #define REG_EMPTY       14
  84 #define REG_ASSERT      15
  85 #define REG_INVARG      16
  86 #define REG_ATOI        255     /* convert name to number (!) */
  87 #define REG_ITOA        0400    /* convert number to name (!) */
  88
  89 /* regexec() flags */
  90 #define REG_NOTBOL      00001
  91 #define REG_NOTEOL      00002
  92 #define REG_STARTEND    00004
  93 #define REG_TRACE       00400   /* tracing of execution */
  94 #define REG_LARGE       01000   /* force large representation */
  95 #define REG_BACKR       02000   /* force use of backref code */
  96
  97 __BEGIN_DECLS
  98 int     regcomp(regex_t *, const char *, int);
  99 size_t  regerror(int, const regex_t *, char *, size_t);
 100 int     regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
 101 void    regfree(regex_t *);
 102 __END_DECLS
 103
 104 #endif /* !_REGEX_H_ */