/* Copyright (C) 2012 J.F.Dockes
* 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 2 of the License, or
* (at your option) 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, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _STRMATCHER_H_INCLUDED_
#define _STRMATCHER_H_INCLUDED_
#include <string>
// Encapsulating simple wildcard/regexp string matching.
// Matcher class. Interface to either wildcard or regexp yes/no matcher
class StrMatcher {
public:
StrMatcher(const std::string& exp)
: m_sexp(exp)
{
}
virtual ~StrMatcher() {};
virtual bool match(const std::string &val) const = 0;
virtual std::string::size_type baseprefixlen() const = 0;
virtual bool setExp(const std::string& newexp)
{
m_sexp = newexp;
return true;
}
virtual bool ok() const
{
return true;
}
virtual const std::string& exp()
{
return m_sexp;
}
virtual StrMatcher *clone() = 0;
const string& getreason()
{
return m_reason;
}
protected:
std::string m_sexp;
std::string m_reason;
};
class StrWildMatcher : public StrMatcher {
public:
StrWildMatcher(const std::string& exp)
: StrMatcher(exp)
{
}
virtual ~StrWildMatcher()
{
}
virtual bool match(const std::string& val) const;
virtual std::string::size_type baseprefixlen() const;
virtual StrWildMatcher *clone()
{
return new StrWildMatcher(m_sexp);
}
};
class StrRegexpMatcher : public StrMatcher {
public:
StrRegexpMatcher(const std::string& exp);
virtual bool setExp(const std::string& newexp);
virtual ~StrRegexpMatcher();
virtual bool match(const std::string& val) const;
virtual std::string::size_type baseprefixlen() const;
virtual bool ok() const;
virtual StrRegexpMatcher *clone()
{
return new StrRegexpMatcher(m_sexp);
}
const string& getreason()
{
return m_reason;
}
private:
void *m_compiled;
bool m_errcode;
};
#endif /* _STRMATCHER_H_INCLUDED_ */