include/regex.h

   1 /*-
   2  * Copyright (c) 1992 Henry Spencer.
   3  * Copyright (c) 1992, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * This code is derived from software contributed to Berkeley by
   7  * Henry Spencer of the University of Toronto.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the University of
  20  *      California, Berkeley and its contributors.
  21  * 4. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  *      @(#)regex.h     8.2 (Berkeley) 1/3/94
  38  */
  39
  40 #ifndef _REGEX_H_
  41 #define _REGEX_H_
  42
  43 #ifndef _TYPES_H
  44 #include <sys/types.h>
  45 #endif
  46
  47 /* types */
  48 typedef off_t regoff_t;
  49
  50 typedef struct {
  51         int re_magic;
  52         size_t re_nsub;         /* number of parenthesized subexpressions */
  53         const char *re_endp;    /* end pointer for REG_PEND */
  54         struct re_guts *re_g;   /* none of your business :-) */
  55 } regex_t;
  56
  57 typedef struct {
  58         regoff_t rm_so;         /* start of match */
  59         regoff_t rm_eo;         /* end of match */
  60 } regmatch_t;
  61
  62 /* regcomp() flags */
  63 #define REG_BASIC       0000
  64 #define REG_EXTENDED    0001
  65 #define REG_ICASE       0002
  66 #define REG_NOSUB       0004
  67 #define REG_NEWLINE     0010
  68 #define REG_NOSPEC      0020
  69 #define REG_PEND        0040
  70 #define REG_DUMP        0200
  71
  72 /* regerror() flags */
  73 #define REG_NOMATCH      1
  74 #define REG_BADPAT       2
  75 #define REG_ECOLLATE     3
  76 #define REG_ECTYPE       4
  77 #define REG_EESCAPE      5
  78 #define REG_ESUBREG      6
  79 #define REG_EBRACK       7
  80 #define REG_EPAREN       8
  81 #define REG_EBRACE       9
  82 #define REG_BADBR       10
  83 #define REG_ERANGE      11
  84 #define REG_ESPACE      12
  85 #define REG_BADRPT      13
  86 #define REG_EMPTY       14
  87 #define REG_ASSERT      15
  88 #define REG_INVARG      16
  89 #define REG_ATOI        255     /* convert name to number (!) */
  90 #define REG_ITOA        0400    /* convert number to name (!) */
  91
  92 /* regexec() flags */
  93 #define REG_NOTBOL      00001
  94 #define REG_NOTEOL      00002
  95 #define REG_STARTEND    00004
  96 #define REG_TRACE       00400   /* tracing of execution */
  97 #define REG_LARGE       01000   /* force large representation */
  98 #define REG_BACKR       02000   /* force use of backref code */
  99
 100 int regcomp(regex_t *, const char *, int);
 101 size_t regerror(int, const regex_t *, char *, size_t);
 102 int regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
 103 void regfree(regex_t *);
 104
 105 #endif /* !_REGEX_H_ */