diff options
Diffstat (limited to 'qpid/cpp/src/qpid/sys/regex.h')
-rw-r--r-- | qpid/cpp/src/qpid/sys/regex.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/sys/regex.h b/qpid/cpp/src/qpid/sys/regex.h new file mode 100644 index 0000000000..77de6a7f5c --- /dev/null +++ b/qpid/cpp/src/qpid/sys/regex.h @@ -0,0 +1,81 @@ +#ifndef QPID_SYS_REGEX_H +#define QPID_SYS_REGEX_H + +/* + * + * Copyright (c) 2006 The Apache Software Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#if defined(_POSIX_SOURCE) || defined(__unix__) +# include <stdexcept> +# include <string> +# include <regex.h> +#elif defined(_MSC_VER) +# include <regex> +#else +#error "No known regex implementation" +#endif + +// This is a very simple wrapper for Basic Regular Expression facilities either +// provided by POSIX or C++ tr1 +// +// Matching expressions are not supported and so the only useful operation is +// a simple boolean match indicator. + +namespace qpid { +namespace sys { + +#if defined(_POSIX_SOURCE) || defined(__unix__) + +class regex { + ::regex_t re; + +public: + regex(const std::string& s) { + int rc = ::regcomp(&re, s.c_str(), REG_NOSUB); + if (rc != 0) throw std::logic_error("Regular expression compilation error"); + } + + ~regex() { + ::regfree(&re); + } + + friend bool regex_match(const std::string& s, const regex& re); +}; + +inline bool regex_match(const std::string& s, const regex& re) { + return ::regexec(&(re.re), s.c_str(), 0, 0, 0)==0; +} + +#elif defined(_MSC_VER) + +class regex : public std::tr1::regex { +public: + regex(const std::string& s) : + std::tr1::regex(s, std::tr1::regex::basic) + {} +}; + +using std::tr1::regex_match; + +#else +#error "No known regex implementation" +#endif + +}} + + +#endif |