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 /* 24 * Copyright 2014 Garrett D'Amore <garrett@damore.org> 25 * 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 /* 31 * Copyright 1989, 1994 by Mortice Kern Systems Inc. 32 * All rights reserved. 33 */ 34 35 /* 36 * Copyright 2017 Nexenta Systems, Inc. 37 */ 38 39 #ifndef _REGEX_H 40 #define _REGEX_H 41 42 #include <sys/feature_tests.h> 43 #include <sys/types.h> 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 50 /* 51 * wchar_t is a built-in type in standard C++ and as such is not 52 * defined here when using standard C++. However, the GNU compiler 53 * fixincludes utility nonetheless creates its own version of this 54 * header for use by gcc and g++. In that version it adds a redundant 55 * guard for __cplusplus. To avoid the creation of a gcc/g++ specific 56 * header we need to include the following magic comment: 57 * 58 * we must use the C++ compiler's type 59 * 60 * The above comment should not be removed or changed until GNU 61 * gcc/fixinc/inclhack.def is updated to bypass this header. 62 */ 63 #if !defined(__cplusplus) || (__cplusplus < 199711L && !defined(__GNUG__)) 64 #ifndef _WCHAR_T 65 #define _WCHAR_T 66 #if defined(_LP64) 67 typedef int wchar_t; 68 #else 69 typedef long wchar_t; 70 #endif 71 #endif /* !_WCHAR_T */ 72 #endif /* !defined(__cplusplus) ... */ 73 74 typedef ssize_t regoff_t; 75 76 /* regcomp flags */ 77 #define REG_BASIC 0x00000 78 #define REG_EXTENDED 0x00001 /* Use Extended Regular Expressions */ 79 #define REG_NOSUB 0x00002 /* Don't set subexpression */ 80 #define REG_ICASE 0x00004 /* Ignore case in match */ 81 #define REG_NEWLINE 0x00008 /* Treat \n as regular character */ 82 #define REG_DELIM 0x00010 /* legacy, no effect */ 83 #define REG_DEBUG 0x00020 /* legacy, no effect */ 84 #define REG_ANCHOR 0x00040 /* legacy, no effect */ 85 #define REG_WORDS 0x00080 /* legacy, no effect */ 86 #define REG_EGREP 0x01000 /* legacy, no effect */ 87 #define REG_DUMP 0x02000 /* internal */ 88 #define REG_PEND 0x04000 /* NULs are ordinary characters */ 89 #define REG_NOSPEC 0x08000 /* no special characters */ 90 91 /* internal flags */ 92 #define REG_MUST 0x00100 /* legacy, no effect */ 93 94 /* regexec flags */ 95 #define REG_NOTBOL 0x00200 /* string is not BOL */ 96 #define REG_NOTEOL 0x00400 /* string has no EOL */ 97 #define REG_NOOPT 0x00800 /* legacy, no effect */ 98 #define REG_STARTEND 0x10000 /* match whole pattern */ 99 #define REG_TRACE 0x20000 /* tracing of execution */ 100 #define REG_LARGE 0x40000 /* force large representation */ 101 #define REG_BACKR 0x80000 /* force use of backref code */ 102 103 /* regcomp and regexec return codes */ 104 #define REG_OK 0 /* success (non-standard) */ 105 #define REG_NOMATCH 1 /* regexec failed to match */ 106 #define REG_ECOLLATE 2 /* invalid collation element ref. */ 107 #define REG_EESCAPE 3 /* trailing \ in pattern */ 108 #define REG_ENEWLINE 4 /* \n found before end of pattern */ 109 #define REG_ENSUB 5 /* more than 9 \( \) pairs (OBS) */ 110 #define REG_ESUBREG 6 /* number in \[0-9] invalid */ 111 #define REG_EBRACK 7 /* [ ] imbalance */ 112 #define REG_EPAREN 8 /* ( ) imbalance */ 113 #define REG_EBRACE 9 /* \{ \} imbalance */ 114 #define REG_ERANGE 10 /* invalid endpoint in range */ 115 #define REG_ESPACE 11 /* no memory for compiled pattern */ 116 #define REG_BADRPT 12 /* invalid repetition */ 117 #define REG_ECTYPE 13 /* invalid char-class type */ 118 #define REG_BADPAT 14 /* syntax error */ 119 #define REG_BADBR 15 /* \{ \} contents bad */ 120 #define REG_EFATAL 16 /* internal error, not POSIX.2 */ 121 #define REG_ECHAR 17 /* invalid multibyte character */ 122 #define REG_STACK 18 /* backtrack stack overflow */ 123 #define REG_ENOSYS 19 /* function not supported (XPG4) */ 124 #define REG__LAST 20 /* first unused code */ 125 #define REG_EBOL 21 /* ^ anchor and not BOL */ 126 #define REG_EEOL 22 /* $ anchor and not EOL */ 127 #define REG_ATOI 255 /* convert name to number (!) */ 128 #define REG_ITOA 256 /* convert number to name (!) */ 129 130 #define _REG_BACKREF_MAX 9 /* Max # of subexp. backreference */ 131 132 typedef struct { /* regcomp() data saved for regexec() */ 133 size_t re_nsub; /* # of subexpressions in RE pattern */ 134 135 /* 136 * Internal use only. Note that any changes to this structure 137 * have to preserve sizing, as it is baked into applications. 138 */ 139 struct re_guts *re_g; 140 int re_magic; 141 const char *re_endp; 142 143 /* here for compat */ 144 size_t re_len; /* # wchar_t chars in compiled pattern */ 145 struct _regex_ext_t *re_sc; /* for binary compatibility */ 146 } regex_t; 147 148 /* subexpression positions */ 149 typedef struct { 150 const char *rm_sp, *rm_ep; /* Start pointer, end pointer */ 151 regoff_t rm_so, rm_eo; /* Start offset, end offset */ 152 int rm_ss, rm_es; /* Used internally */ 153 } regmatch_t; 154 155 156 /* 157 * IEEE Std 1003.2 ("POSIX.2") regular expressions API. 158 */ 159 160 extern int regcomp(regex_t *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, int); 161 extern int regexec(const regex_t *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, 162 size_t, regmatch_t *_RESTRICT_KYWD, int); 163 extern size_t regerror(int, const regex_t *_RESTRICT_KYWD, char *_RESTRICT_KYWD, 164 size_t); 165 extern void regfree(regex_t *); 166 167 #ifdef __cplusplus 168 } 169 #endif 170 171 #endif /* _REGEX_H */ 172