public static ObjectConditional ParseDirect( Mobile from, string[] args, int offset, int size )
{
if ( args == null || size == 0 )
return Empty;
int index = 0;
Type objectType = ScriptCompiler.FindTypeByName( args[offset + index], true );
if ( objectType == null )
throw new Exception( String.Format( "No type with that name ({0}) was found.", args[offset + index] ) );
++index;
List<ICondition[]> conditions = new List<ICondition[]>();
List<ICondition> current = new List<ICondition>();
current.Add( TypeCondition.Default );
while ( index < size )
{
string cur = args[offset + index];
bool inverse = false;
if ( Insensitive.Equals( cur, "not" ) || cur == "!" )
{
inverse = true;
++index;
if ( index >= size )
throw new Exception( "Improperly formatted object conditional." );
}
else if ( Insensitive.Equals( cur, "or" ) || cur == "||" )
{
if (current.Count > 1)
{
conditions.Add( current.ToArray() );
current.Clear();
current.Add( TypeCondition.Default );
}
++index;
continue;
}
string binding = args[offset + index];
index++;
if ( index >= size )
throw new Exception( "Improperly formatted object conditional." );
string oper = args[offset + index];
index++;
if ( index >= size )
throw new Exception( "Improperly formatted object conditional." );
string val = args[offset + index];
index++;
Property prop = new Property( binding );
prop.BindTo( objectType, PropertyAccess.Read );
prop.CheckAccess( from );
ICondition condition = null;
switch ( oper )
{
#region Equality
case "=":
case "==":
case "is":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.Equal, val );
break;
case "!=":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.NotEqual, val );
break;
#endregion
#region Relational
case ">":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.Greater, val );
break;
case "<":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.Lesser, val );
break;
case ">=":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.GreaterEqual, val );
break;
case "<=":
condition = new ComparisonCondition( prop, inverse, ComparisonOperator.LesserEqual, val );
break;
#endregion
#region Strings
case "==~":
case "~==":
case "=~":
case "~=":
case "is~":
case "~is":
condition = new StringCondition( prop, inverse, StringOperator.Equal, val, true );
break;
case "!=~":
case "~!=":
condition = new StringCondition( prop, inverse, StringOperator.NotEqual, val, true );
break;
case "starts":
condition = new StringCondition( prop, inverse, StringOperator.StartsWith, val, false );
break;
case "starts~":
case "~starts":
condition = new StringCondition( prop, inverse, StringOperator.StartsWith, val, true );
break;
case "ends":
condition = new StringCondition( prop, inverse, StringOperator.EndsWith, val, false );
break;
case "ends~":
case "~ends":
condition = new StringCondition( prop, inverse, StringOperator.EndsWith, val, true );
break;
case "contains":
condition = new StringCondition( prop, inverse, StringOperator.Contains, val, false );
break;
case "contains~":
case "~contains":
condition = new StringCondition( prop, inverse, StringOperator.Contains, val, true );
break;
#endregion
}
if ( condition == null )
throw new InvalidOperationException( String.Format( "Unrecognized operator (\"{0}\").", oper ) );
current.Add( condition );
}
conditions.Add( current.ToArray() );
return new ObjectConditional( objectType, conditions.ToArray() );
}