/* Portable <regex.h>. Copyright (C) 2000-2019 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_AND_ASSIGN (compiled_regex); /* 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 */ |