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/* Copyright © 2006 Roger Leigh <rleigh@debian.org>
*
* schroot 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 2 of the License, or
* (at your option) any later version.
*
* schroot 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*********************************************************************/
#ifndef SBUILD_REGEX_H
#define SBUILD_REGEX_H
#include <istream>
#include <ostream>
#include <string>
#include <boost/regex.hpp>
namespace sbuild
{
/**
* POSIX extended regular expression.
*/
class regex : public boost::regex
{
public:
/// The constructor
regex ():
boost::regex()
{}
/**
* The constructor.
*
* May throw if the regex is invalid.
*
* @param pattern a regex
*/
regex (std::string const& pattern):
boost::regex(pattern, boost::regex::extended)
{}
/**
* The constructor.
*
* May throw if the regex is invalid.
*
* @param pattern a regex
*/
regex (const char *pattern):
boost::regex(pattern, boost::regex::extended)
{}
///* The destructor.
~regex ()
{}
/**
* Get the regex name from a stream.
*
* May throw if the regex is invalid.
*
* @param stream the stream to get input from.
* @param rhs the regex to set.
* @returns the stream.
*/
template <class charT, class traits>
friend
std::basic_istream<charT,traits>&
operator >> (std::basic_istream<charT,traits>& stream,
regex& rhs)
{
std::string regex;
if (std::getline(stream, regex))
{
rhs.assign(regex, boost::regex::extended);
}
return stream;
}
/**
* Print the regex name to a stream.
*
* @param stream the stream to output to.
* @param rhs the regex to output.
* @returns the stream.
*/
template <class charT, class traits>
friend
std::basic_ostream<charT,traits>&
operator << (std::basic_ostream<charT,traits>& stream,
regex const& rhs)
{
return stream << rhs.str();
}
};
}
#endif /* SBUILD_REGEX_H */
/*
* Local Variables:
* mode:C++
* End:
*/
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