/* Portable <regex.h>.
- Copyright (C) 2000-2013 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of GDB.
# include <regex.h>
#endif
-/* From utils.c. */
-struct cleanup *make_regfree_cleanup (regex_t *);
-char *get_regcomp_error (int, regex_t *);
+/* 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 */