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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/* Portable <regex.h>.
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Copyright (C) 2000-2022 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_REGEX_H
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#define GDB_REGEX_H 1
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# include "xregex.h"
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/* A compiled regex. This is mainly a wrapper around regex_t. The
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the constructor throws on regcomp error and the destructor is
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responsible for calling regfree. The former means that it's not
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possible to create an instance of compiled_regex that isn't
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compiled, hence the name. */
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class compiled_regex
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{
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public:
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/* Compile a regexp and throw an exception on error, including
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MESSAGE. REGEX and MESSAGE must not be NULL. */
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compiled_regex (const char *regex, int cflags,
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const char *message)
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ATTRIBUTE_NONNULL (2) ATTRIBUTE_NONNULL (4);
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~compiled_regex ();
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DISABLE_COPY_AND_ASSIGN (compiled_regex);
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/* Wrapper around ::regexec. */
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int exec (const char *string,
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size_t nmatch, regmatch_t pmatch[],
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int eflags) const;
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/* Wrapper around ::re_search. (Not const because re_search's
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regex_t parameter isn't either.) */
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int search (const char *string, int size, int startpos,
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int range, struct re_registers *regs);
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private:
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/* The compiled pattern. */
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regex_t m_pattern;
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};
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#endif /* not GDB_REGEX_H */
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