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//-----------------------------------------------------------------------------
/** @file libboardgame_base/SgfError.h
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#ifndef LIBBOARDGAME_BASE_SGF_ERROR_H
#define LIBBOARDGAME_BASE_SGF_ERROR_H
#include <sstream>
#include <stdexcept>
namespace libboardgame_base {
using namespace std;
//-----------------------------------------------------------------------------
/** Exception indicating a semantic error in the tree.
This exception is used for semantic errors in SGF trees. If a SGF tree
is loaded from an external file, it is usually only checked for
(game-independent) syntax errors, but not for semantic errors (e.g. illegal
moves) because that would be too expensive when loading large trees and
not allow the user to partially use a tree if there is an error only in
some variations. */
class SgfError
: public runtime_error
{
using runtime_error::runtime_error;
};
//-----------------------------------------------------------------------------
class MissingProperty
: public SgfError
{
public:
explicit MissingProperty(const string& id);
};
//-----------------------------------------------------------------------------
class InvalidProperty
: public SgfError
{
public:
template<typename T>
InvalidProperty(const string& id, const T& value);
private:
template<typename T>
static string get_message(const string& id, const T& value);
};
template<typename T>
InvalidProperty::InvalidProperty(const string& id, const T& value)
: SgfError(get_message(id, value))
{
}
template<typename T>
string InvalidProperty::get_message(const string& id, const T& value)
{
ostringstream msg;
msg << "Invalid value '" << value << "' for SGF property '" << id << "'";
return msg.str();
}
//-----------------------------------------------------------------------------
} // namespace libboardgame_base
#endif // LIBBOARDGAME_BASE_SGF_ERROR_H
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