| 1 | /* Portable <regex.h>. |
| 2 | Copyright (C) 2000-2021 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef GDB_REGEX_H |
| 20 | #define GDB_REGEX_H 1 |
| 21 | |
| 22 | #ifdef USE_INCLUDED_REGEX |
| 23 | # include "xregex.h" |
| 24 | #else |
| 25 | /* Request 4.2 BSD regex functions. */ |
| 26 | # define _REGEX_RE_COMP |
| 27 | # include <regex.h> |
| 28 | #endif |
| 29 | |
| 30 | /* A compiled regex. This is mainly a wrapper around regex_t. The |
| 31 | the constructor throws on regcomp error and the destructor is |
| 32 | responsible for calling regfree. The former means that it's not |
| 33 | possible to create an instance of compiled_regex that isn't |
| 34 | compiled, hence the name. */ |
| 35 | class compiled_regex |
| 36 | { |
| 37 | public: |
| 38 | /* Compile a regexp and throw an exception on error, including |
| 39 | MESSAGE. REGEX and MESSAGE must not be NULL. */ |
| 40 | compiled_regex (const char *regex, int cflags, |
| 41 | const char *message) |
| 42 | ATTRIBUTE_NONNULL (2) ATTRIBUTE_NONNULL (4); |
| 43 | |
| 44 | ~compiled_regex (); |
| 45 | |
| 46 | DISABLE_COPY_AND_ASSIGN (compiled_regex); |
| 47 | |
| 48 | /* Wrapper around ::regexec. */ |
| 49 | int exec (const char *string, |
| 50 | size_t nmatch, regmatch_t pmatch[], |
| 51 | int eflags) const; |
| 52 | |
| 53 | /* Wrapper around ::re_search. (Not const because re_search's |
| 54 | regex_t parameter isn't either.) */ |
| 55 | int search (const char *string, int size, int startpos, |
| 56 | int range, struct re_registers *regs); |
| 57 | |
| 58 | private: |
| 59 | /* The compiled pattern. */ |
| 60 | regex_t m_pattern; |
| 61 | }; |
| 62 | |
| 63 | #endif /* not GDB_REGEX_H */ |