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/* Portable <regex.h>.
Copyright (C) 2000-2017 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef GDB_REGEX_H
#define GDB_REGEX_H 1
#ifdef USE_INCLUDED_REGEX
# include "xregex.h"
#else
/* Request 4.2 BSD regex functions. */
# define _REGEX_RE_COMP
# include <regex.h>
#endif
/* A compiled regex. This is mainly a wrapper around regex_t. The
the constructor throws on regcomp error and the destructor is
responsible for calling regfree. The former means that it's not
possible to create an instance of compiled_regex that isn't
compiled, hence the name. */
class compiled_regex
{
public:
/* Compile a regexp and throw an exception on error, including
MESSAGE. REGEX and MESSAGE must not be NULL. */
compiled_regex (const char *regex, int cflags,
const char *message)
ATTRIBUTE_NONNULL (2) ATTRIBUTE_NONNULL (4);
~compiled_regex ();
/* Disable copy. */
compiled_regex (const compiled_regex&) = delete;
void operator= (const compiled_regex&) = delete;
/* Wrapper around ::regexec. */
int exec (const char *string,
size_t nmatch, regmatch_t pmatch[],
int eflags) const;
/* Wrapper around ::re_search. (Not const because re_search's
regex_t parameter isn't either.) */
int search (const char *string, int size, int startpos,
int range, struct re_registers *regs);
private:
/* The compiled pattern. */
regex_t m_pattern;
};
#endif /* not GDB_REGEX_H */
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