--- /dev/null
+/*************************************************
+* Perl-Compatible Regular Expressions *
+*************************************************/
+
+/* PCRE2 is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+ Written by Philip Hazel
+ Original API code Copyright (c) 1997-2012 University of Cambridge
+ New API code Copyright (c) 2016 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * 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.
+
+ * Neither the name of the University of Cambridge 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+-----------------------------------------------------------------------------
+*/
+
+
+/* Have to include stdlib.h in order to ensure that size_t is defined. */
+
+#include <stdlib.h>
+
+/* Allow for C++ users */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Options, mostly defined by POSIX, but with some extras. */
+
+#define REG_ICASE 0x0001 /* Maps to PCRE2_CASELESS */
+#define REG_NEWLINE 0x0002 /* Maps to PCRE2_MULTILINE */
+#define REG_NOTBOL 0x0004 /* Maps to PCRE2_NOTBOL */
+#define REG_NOTEOL 0x0008 /* Maps to PCRE2_NOTEOL */
+#define REG_DOTALL 0x0010 /* NOT defined by POSIX; maps to PCRE2_DOTALL */
+#define REG_NOSUB 0x0020 /* Do not report what was matched */
+#define REG_UTF 0x0040 /* NOT defined by POSIX; maps to PCRE2_UTF */
+#define REG_STARTEND 0x0080 /* BSD feature: pass subject string by so,eo */
+#define REG_NOTEMPTY 0x0100 /* NOT defined by POSIX; maps to PCRE2_NOTEMPTY */
+#define REG_UNGREEDY 0x0200 /* NOT defined by POSIX; maps to PCRE2_UNGREEDY */
+#define REG_UCP 0x0400 /* NOT defined by POSIX; maps to PCRE2_UCP */
+#define REG_PEND 0x0800 /* GNU feature: pass end pattern by re_endp */
+#define REG_NOSPEC 0x1000 /* Maps to PCRE2_LITERAL */
+
+/* This is not used by PCRE2, but by defining it we make it easier
+to slot PCRE2 into existing programs that make POSIX calls. */
+
+#define REG_EXTENDED 0
+
+/* Error values. Not all these are relevant or used by the wrapper. */
+
+enum {
+ REG_ASSERT = 1, /* internal error ? */
+ REG_BADBR, /* invalid repeat counts in {} */
+ REG_BADPAT, /* pattern error */
+ REG_BADRPT, /* ? * + invalid */
+ REG_EBRACE, /* unbalanced {} */
+ REG_EBRACK, /* unbalanced [] */
+ REG_ECOLLATE, /* collation error - not relevant */
+ REG_ECTYPE, /* bad class */
+ REG_EESCAPE, /* bad escape sequence */
+ REG_EMPTY, /* empty expression */
+ REG_EPAREN, /* unbalanced () */
+ REG_ERANGE, /* bad range inside [] */
+ REG_ESIZE, /* expression too big */
+ REG_ESPACE, /* failed to get memory */
+ REG_ESUBREG, /* bad back reference */
+ REG_INVARG, /* bad argument */
+ REG_NOMATCH /* match failed */
+};
+
+
+/* The structure representing a compiled regular expression. It is also used
+for passing the pattern end pointer when REG_PEND is set. */
+
+typedef struct {
+ void *re_pcre2_code;
+ void *re_match_data;
+ const char *re_endp;
+ size_t re_nsub;
+ size_t re_erroffset;
+ int re_cflags;
+} regex_t;
+
+/* The structure in which a captured offset is returned. */
+
+typedef int regoff_t;
+
+typedef struct {
+ regoff_t rm_so;
+ regoff_t rm_eo;
+} regmatch_t;
+
+/* When an application links to a PCRE2 DLL in Windows, the symbols that are
+imported have to be identified as such. When building PCRE2, the appropriate
+export settings are needed, and are set in pcre2posix.c before including this
+file. */
+
+#if defined(_WIN32) && !defined(PCRE2_STATIC) && !defined(PCRE2POSIX_EXP_DECL)
+# define PCRE2POSIX_EXP_DECL extern __declspec(dllimport)
+# define PCRE2POSIX_EXP_DEFN __declspec(dllimport)
+#endif
+
+/* By default, we use the standard "extern" declarations. */
+
+#ifndef PCRE2POSIX_EXP_DECL
+# ifdef __cplusplus
+# define PCRE2POSIX_EXP_DECL extern "C"
+# define PCRE2POSIX_EXP_DEFN extern "C"
+# else
+# define PCRE2POSIX_EXP_DECL extern
+# define PCRE2POSIX_EXP_DEFN extern
+# endif
+#endif
+
+/* The functions */
+
+PCRE2POSIX_EXP_DECL int regcomp(regex_t *, const char *, int);
+PCRE2POSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t,
+ regmatch_t *, int);
+PCRE2POSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t);
+PCRE2POSIX_EXP_DECL void regfree(regex_t *);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+/* End of pcre2posix.h */
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