1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Copyright 1989, 1994 by Mortice Kern Systems Inc. 29 * All rights reserved. 30 */ 31 /* 32 * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 33 * Use is subject to license terms. 34 */ 35 36 #ifndef _REGEX_H 37 #define _REGEX_H 38 39 #include <sys/feature_tests.h> 40 #include <sys/types.h> 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 47 /* 48 * wchar_t is a built-in type in standard C++ and as such is not 49 * defined here when using standard C++. However, the GNU compiler 50 * fixincludes utility nonetheless creates its own version of this 51 * header for use by gcc and g++. In that version it adds a redundant 52 * guard for __cplusplus. To avoid the creation of a gcc/g++ specific 53 * header we need to include the following magic comment: 54 * 55 * we must use the C++ compiler's type 56 * 57 * The above comment should not be removed or changed until GNU 58 * gcc/fixinc/inclhack.def is updated to bypass this header. 59 */ 60 #if !defined(__cplusplus) || (__cplusplus < 199711L && !defined(__GNUG__)) 61 #ifndef _WCHAR_T 62 #define _WCHAR_T 63 #if defined(_LP64) 64 typedef int wchar_t; 65 #else 66 typedef long wchar_t; 67 #endif 68 #endif /* !_WCHAR_T */ 69 #endif /* !defined(__cplusplus) ... */ 70 71 typedef ssize_t regoff_t; 72 73 /* regcomp flags */ 74 #define REG_BASIC 0x00 75 #define REG_EXTENDED 0x01 /* Use Extended Regular Expressions */ 76 #define REG_NEWLINE 0x08 /* Treat \n as regular character */ 77 #define REG_ICASE 0x04 /* Ignore case in match */ 78 #define REG_NOSUB 0x02 /* Don't set subexpression */ 79 #define REG_EGREP 0x1000 /* running as egrep(1) */ 80 81 /* non-standard flags - note that most of these are not supported */ 82 #define REG_DELIM 0x10 /* string[0] is delimiter */ 83 #define REG_DEBUG 0x20 /* Debug recomp and regexec */ 84 #define REG_ANCHOR 0x40 /* Implicit ^ and $ */ 85 #define REG_WORDS 0x80 /* \< and \> match word boundries */ 86 87 /* FreeBSD additions */ 88 #define REG_DUMP 0x2000 89 #define REG_PEND 0x4000 90 #define REG_NOSPEC 0x8000 91 #define REG_STARTEND 0x10000 92 93 /* internal flags */ 94 #define REG_MUST 0x100 /* check for regmust substring */ 95 96 /* regexec flags */ 97 #define REG_NOTBOL 0x200 /* string is not BOL */ 98 #define REG_NOTEOL 0x400 /* string has no EOL */ 99 #define REG_NOOPT 0x800 /* don't do regmust optimization */ 100 101 /* regcomp and regexec return codes */ 102 #define REG_OK 0 /* success (non-standard) */ 103 #define REG_NOMATCH 1 /* regexec failed to match */ 104 #define REG_ECOLLATE 2 /* invalid collation element ref. */ 105 #define REG_EESCAPE 3 /* trailing \ in pattern */ 106 #define REG_ENEWLINE 4 /* \n found before end of pattern */ 107 #define REG_ENSUB 5 /* more than 9 \( \) pairs (OBS) */ 108 #define REG_ESUBREG 6 /* number in \[0-9] invalid */ 109 #define REG_EBRACK 7 /* [ ] imbalance */ 110 #define REG_EPAREN 8 /* ( ) imbalance */ 111 #define REG_EBRACE 9 /* \{ \} imbalance */ 112 #define REG_ERANGE 10 /* invalid endpoint in range */ 113 #define REG_ESPACE 11 /* no memory for compiled pattern */ 114 #define REG_BADRPT 12 /* invalid repetition */ 115 #define REG_ECTYPE 13 /* invalid char-class type */ 116 #define REG_BADPAT 14 /* syntax error */ 117 #define REG_BADBR 15 /* \{ \} contents bad */ 118 #define REG_EFATAL 16 /* internal error, not POSIX.2 */ 119 #define REG_ECHAR 17 /* invalid mulitbyte character */ 120 #define REG_STACK 18 /* backtrack stack overflow */ 121 #define REG_ENOSYS 19 /* function not supported (XPG4) */ 122 #define REG__LAST 20 /* first unused code */ 123 #define REG_EBOL 21 /* ^ anchor and not BOL */ 124 #define REG_EEOL 22 /* $ anchor and not EOL */ 125 #define _REG_BACKREF_MAX 9 /* Max # of subexp. backreference */ 126 127 typedef struct { /* regcomp() data saved for regexec() */ 128 size_t re_nsub; /* # of subexpressions in RE pattern */ 129 130 /* 131 * Internal use only. Note that any changes to this structure 132 * have to preserve sizing, as it is baked into applications. 133 */ 134 struct re_guts *re_g; 135 int re_magic; 136 const char *re_endp; 137 138 /* here for compat */ 139 size_t re_len; /* # wchar_t chars in compiled pattern */ 140 struct _regex_ext_t *re_sc; /* for binary compatibility */ 141 } regex_t; 142 143 /* subexpression positions */ 144 typedef struct { 145 #ifdef __STDC__ 146 const char *rm_sp, *rm_ep; /* Start pointer, end pointer */ 147 #else 148 char *rm_sp, *rm_ep; /* Start pointer, end pointer */ 149 #endif 150 regoff_t rm_so, rm_eo; /* Start offset, end offset */ 151 int rm_ss, rm_es; /* Used internally */ 152 } regmatch_t; 153 154 155 /* 156 * Additional API and structs to support regular expression manipulations 157 * on wide characters. 158 */ 159 160 #if defined(__STDC__) 161 162 extern int regcomp(regex_t *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, int); 163 extern int regexec(const regex_t *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, 164 size_t, regmatch_t *_RESTRICT_KYWD, int); 165 extern size_t regerror(int, const regex_t *_RESTRICT_KYWD, 166 char *_RESTRICT_KYWD, size_t); 167 extern void regfree(regex_t *); 168 169 #else /* defined(__STDC__) */ 170 171 extern int regcomp(); 172 extern int regexec(); 173 extern size_t regerror(); 174 extern void regfree(); 175 176 #endif /* defined(__STDC__) */ 177 178 #ifdef __cplusplus 179 } 180 #endif 181 182 #endif /* _REGEX_H */ 183