/usr/include/kcregex.h is in libkyotocabinet-dev 1.2.76-4.2+b1.
This file is owned by root:root, with mode 0o644.
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* Regular expression
* Copyright (C) 2009-2012 FAL Labs
* This file is part of Kyoto Cabinet.
* This program is free software: you can redistribute it and/or modify it under the terms of
* the GNU General Public License as published by the Free Software Foundation, either version
* 3 of the License, or any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along with this program.
* If not, see <http://www.gnu.org/licenses/>.
*************************************************************************************************/
#ifndef _KCREGEX_H // duplication check
#define _KCREGEX_H
#include <kccommon.h>
#include <kcutil.h>
namespace kyotocabinet { // common namespace
/**
* Regular expression.
*/
class Regex {
public:
/**
* Options.
*/
enum Option {
IGNCASE = 1 << 0, ///< case-insensitive
MATCHONLY = 1 << 1, ///< matching only
};
/**
* Default constructor.
*/
explicit Regex();
/**
* Destructor.
*/
~Regex();
/**
* Compile a string of regular expression.
* @param regex the string of regular expression.
* @param opts the optional features by bitwise-or: Regex::IGNCASE for case-insensitive
* matching, Regex::MATCHONLY for matching only usage.
*/
bool compile(const std::string& regex, uint32_t opts = 0);
/**
* Check whether a string matches the regular expression.
* @param str the string.
* @return true if the string matches, or false if not.
*/
bool match(const std::string& str);
/**
* Check whether a string matches the regular expression.
* @param str the string.
* @param alt the alternative string with which each substring is replaced. Each "$" in the
* string escapes the following character. Special escapes "$1" through "$9" refer to partial
* substrings corresponding to sub-expressions in the regular expression. "$0" and "$&" refer
* to the whole matching substring.
* @return the result string.
*/
std::string replace(const std::string& str, const std::string& alt);
/**
* Check whether a string matches a regular expression.
* @param str the string.
* @param pattern the matching pattern.
* @param opts the optional features by bitwise-or: Regex::IGNCASE for case-insensitive
* matching, Regex::MATCHONLY for matching only usage.
* @return true if the string matches, or false if not.
*/
static bool match(const std::string& str, const std::string& pattern, uint32_t opts = 0) {
Regex regex;
if (!regex.compile(pattern, opts)) return false;
return regex.match(str);
}
/**
* Check whether a string matches the regular expression.
* @param str the string.
* @param pattern the matching pattern.
* @param alt the alternative string with which each substring is replaced. Each "$" in the
* string escapes the following character. Special escapes "$1" through "$9" refer to partial
* substrings corresponding to sub-expressions in the regular expression. "$0" and "$&" refer
* to the whole matching substring.
* @param opts the optional features by bitwise-or: Regex::IGNCASE for case-insensitive
* matching, Regex::MATCHONLY for matching only usage.
* @return the result string.
*/
static std::string replace(const std::string& str, const std::string& pattern,
const std::string& alt, uint32_t opts = 0) {
Regex regex;
if (!regex.compile(pattern, opts)) return str;
return regex.replace(str, alt);
}
private:
/** Dummy constructor to forbid the use. */
Regex(const Regex&);
/** Dummy Operator to forbid the use. */
Regex& operator =(const Regex&);
/** Opaque pointer. */
void* opq_;
};
} // common namespace
#endif // duplication check
// END OF FILE
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