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1 | /* Portable <regex.h>. | |
2 | Copyright (C) 2000-2020 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 */ |