/// <summary>
/// This method will return null if the given tuple is not found to be
/// suitable. A suitable tuple would have a single value, and a single
/// atom as first part of the tuple.
/// </summary>
/// <param name="tuple">Tuple to use in creating a NamedBoolean instance.</param>
/// <returns>An instance of NamedBoolean based on the give tuple.</returns>
public static new NamedBoolean CreateFrom(TupleToken tuple)
{
if (Log.IsDebugEnabled) Log.Debug("Trying to create a NamedBoolean from tuple = " + tuple);
NamedBoolean result = null;
string name = null;
bool foundName = false;
foreach (ParserToken tupleToken in tuple.Tokens)
{
if (Log.IsDebugEnabled) Log.Debug("name = " + name);
// Seek out the first value token, ignoring spaces.
if (!(tupleToken is IValueToken)) continue;
if (!foundName)
{
// We're expecting the atom to be the first value token.
// Otherwise, quit and return false.
if (!(tupleToken is AtomToken)) break;
// Store the name and look for the value.
name = ((AtomToken) tupleToken).Text;
if (Log.IsDebugEnabled) Log.Debug("Found name = " + name);
foundName = true;
continue;
}
// We're expecting an atom to be the next value token.
// Otherwise, quit and return false.
if (!(tupleToken is AtomToken)) break;
// Create the NamedBoolean instance and return.
bool value = Convert.ToBoolean(((AtomToken) tupleToken).Text);
result = new NamedBoolean(name, value);
result.Tokens = tuple.Tokens;
if (Log.IsDebugEnabled) Log.Debug("Result = " + result);
break;
}
return result;
}
/// <summary>
/// This method will return null if the given tuple is not found to be
/// suitable. A suitable tuple would have a single value, and a single
/// atom as first part of the tuple.
/// </summary>
/// <param name="tuple">Tuple to use in creating a NamedValue instance.</param>
/// <returns>An instance of NamedValue based on the give tuple.</returns>
public static NamedValue CreateFrom(TupleToken tuple)
{
NamedValue result = null;
foreach (ParserToken tupleToken in tuple.Tokens)
{
// Seek out the first value token, ignoring spaces.
if (!(tupleToken is IValueToken)) continue;
// We're expecting the atom name to be the first value token.
// Otherwise, quite and return false.
if (!(tupleToken is AtomToken)) break;
// Create the NamedValue instance and return.
result = new NamedValue();
result.Tokens = tuple.Tokens;
break;
}
return result;
}