regex.h

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/*  $OpenBSD: regex.h,v 1.7 2012/12/05 23:19:57 deraadt Exp $   */
/*  $NetBSD: regex.h,v 1.4.6.1 1996/06/10 18:57:07 explorer Exp $   */
 
/*-
 * Copyright (c) 1992 Henry Spencer.
 * Copyright (c) 1992, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Henry Spencer of the University of Toronto.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *  @(#)regex.h 8.1 (Berkeley) 6/2/93
 */
 
#ifndef _REGEX_H_
#define _REGEX_H_
 
#include <sys/types.h>
 
/* types */
typedef off_t regoff_t;
 
typedef struct {
    int re_magic;
    size_t re_nsub;     /* number of parenthesized subexpressions */
    const char *re_endp;    /* end pointer for REG_PEND */
    struct re_guts *re_g;   /* none of your business :-) */
} regex_t;
 
typedef struct {
    regoff_t rm_so;     /* start of match */
    regoff_t rm_eo;     /* end of match */
} regmatch_t;
 
/* regcomp() flags */
#define REG_BASIC   0000
#define REG_EXTENDED    0001
#define REG_ICASE   0002
#define REG_NOSUB   0004
#define REG_NEWLINE 0010
#define REG_NOSPEC  0020
#define REG_PEND    0040
#define REG_DUMP    0200
 
/* regerror() flags */
#define REG_NOMATCH  1
#define REG_BADPAT   2
#define REG_ECOLLATE     3
#define REG_ECTYPE   4
#define REG_EESCAPE  5
#define REG_ESUBREG  6
#define REG_EBRACK   7
#define REG_EPAREN   8
#define REG_EBRACE   9
#define REG_BADBR   10
#define REG_ERANGE  11
#define REG_ESPACE  12
#define REG_BADRPT  13
#define REG_EMPTY   14
#define REG_ASSERT  15
#define REG_INVARG  16
#define REG_ATOI    255 /* convert name to number (!) */
#define REG_ITOA    0400    /* convert number to name (!) */
 
/* regexec() flags */
#define REG_NOTBOL  00001
#define REG_NOTEOL  00002
#define REG_STARTEND    00004
#define REG_TRACE   00400   /* tracing of execution */
#define REG_LARGE   01000   /* force large representation */
#define REG_BACKR   02000   /* force use of backref code */
 
#if VSF_LINUX_APPLET_USE_REGEX == ENABLED
typedef struct vsf_linux_regex_vplt_t {
    vsf_vplt_info_t info;
 
    VSF_APPLET_VPLT_ENTRY_FUNC_DEF(regcomp);
    VSF_APPLET_VPLT_ENTRY_FUNC_DEF(regerror);
    VSF_APPLET_VPLT_ENTRY_FUNC_DEF(regexec);
    VSF_APPLET_VPLT_ENTRY_FUNC_DEF(regfree);
} vsf_linux_regex_vplt_t;
#   ifndef __VSF_APPLET__
extern __VSF_VPLT_DECORATOR__ vsf_linux_regex_vplt_t vsf_linux_regex_vplt;
#   endif
#endif
 
#if     defined(__VSF_APPLET__) && (defined(__VSF_APPLET_LIB__) || defined(__VSF_APPLET_LINUX_REGEX_LIB__))\
    &&  VSF_APPLET_CFG_ABI_PATCH != ENABLED && VSF_LINUX_APPLET_USE_REGEX == ENABLED
 
#ifndef VSF_LINUX_APPLET_REGEX_VPLT
#   if VSF_LINUX_USE_APPLET == ENABLED
#       define VSF_LINUX_APPLET_REGEX_VPLT                                      \
            ((vsf_linux_regex_vplt_t *)(VSF_LINUX_APPLET_VPLT->regex_vplt))
#   else
#       define VSF_LINUX_APPLET_REGEX_VPLT                                      \
            ((vsf_linux_regex_vplt_t *)vsf_vplt((void *)0))
#   endif
#endif
 
#define VSF_LINUX_APPLET_REGEX_ENTRY(__NAME)                                    \
            VSF_APPLET_VPLT_ENTRY_FUNC_ENTRY(VSF_LINUX_APPLET_REGEX_VPLT, __NAME)
#define VSF_LINUX_APPLET_REGEX_IMP(...)                                         \
            VSF_APPLET_VPLT_ENTRY_FUNC_IMP(VSF_LINUX_APPLET_REGEX_VPLT, __VA_ARGS__)
 
VSF_LINUX_APPLET_REGEX_IMP(regcomp, int, regex_t *preg, const char *regex, int cflags) {
    VSF_APPLET_VPLT_ENTRY_FUNC_TRACE();
    return VSF_LINUX_APPLET_REGEX_ENTRY(regcomp)(preg, regex, cflags);
}
VSF_LINUX_APPLET_REGEX_IMP(regerror, size_t, int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size) {
    VSF_APPLET_VPLT_ENTRY_FUNC_TRACE();
    return VSF_LINUX_APPLET_REGEX_ENTRY(regerror)(errcode, preg, errbuf, errbuf_size);
}
VSF_LINUX_APPLET_REGEX_IMP(regexec, int, const regex_t *preg, const char *string, size_t nmatch, regmatch_t pmatch[], int eflags) {
    VSF_APPLET_VPLT_ENTRY_FUNC_TRACE();
    return VSF_LINUX_APPLET_REGEX_ENTRY(regexec)(preg, string, nmatch, pmatch, eflags);
}
VSF_LINUX_APPLET_REGEX_IMP(regfree, void, regex_t *preg) {
    VSF_APPLET_VPLT_ENTRY_FUNC_TRACE();
    VSF_LINUX_APPLET_REGEX_ENTRY(regfree)(preg);
}
 
#else       // __VSF_APPLET__ && VSF_LINUX_APPLET_USE_GLOB
 
__BEGIN_DECLS
int regcomp(regex_t *, const char *, int);
size_t  regerror(int, const regex_t *, char *, size_t);
int regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
void    regfree(regex_t *);
__END_DECLS
 
#endif
 
#endif /* !_REGEX_H_ */