/// <summary>
/// Process condition and returns condition result.
/// </summary>
/// <param name="command">Condition.</param>
/// <param name="table">Table.</param>
/// <param name="row">Row.</param>
/// <param name="from">Use state FROM keyword.</param>
public static bool Process(string command, MochaTableResult table, MochaRow row, bool from)
{
ConditionType type;
if (!IsCondition(command, out type))
{
return(false);
}
string[] parts = GetConditionParts(command, MhqlEng_CONDITION_LEXER.Operators[type.ToString()]);
Expressional value0 = GetValue(parts[0], table, row, from);
Expressional value1 = GetValue(parts[1], table, row, from);
if (value0.Type != value1.Type)
{
throw new InvalidCastException("Value types is are not compatible!");
}
switch (type)
{
case ConditionType.EQUAL: return(value0.Equal(value1));
case ConditionType.NOTEQUAL: return(value0.NotEqual(value1));
case ConditionType.BIGGER: return(value0.Bigger(value1));
case ConditionType.LOWER: return(value0.Lower(value1));
case ConditionType.BIGGEREQ: return(value0.BiggerEqual(value1));
case ConditionType.LOWEREQ: return(value0.LowerEqual(value1));
default: return(false);
}
}
/// <summary>
/// Returns true if lower, returns false if not.
/// </summary>
/// <param name="v">Value to compare.</param>
public bool Lower(Expressional v)
{
if (Type == ExpressionType.Boolean)
{
return(Value.ToString() == "False" && v.Value.ToString() == "True");
}
else if (Type == ExpressionType.Char)
{
return((int)Value < (int)v.Value);
}
else if (Type == ExpressionType.Arithmetic)
{
return(decimal.Parse(Value.ToString()) < decimal.Parse(v.Value.ToString()));
}
throw new InvalidCastException("LOWER operator is cannot compatible this data type!");
}
/// <summary>
/// Returns true if biggereq, returns false if not.
/// </summary>
/// <param name="v">Value to compare.</param>
public bool BiggerEqual(Expressional v)
{
if (Type == ExpressionType.Boolean)
{
return
((Value.ToString() == "True" && v.Value.ToString() == "False") ||
(Value.ToString() == v.Value.ToString()));
}
else if (Type == ExpressionType.Char)
{
return((int)Value >= (int)v.Value);
}
else if (Type == ExpressionType.Arithmetic)
{
return(decimal.Parse(Value.ToString()) >= decimal.Parse(v.Value.ToString()));
}
throw new InvalidCastException("BIGGEREQ operator is cannot compatible this data type!");
}
/// <summary> /// Returns true if not equals, returns false if not. /// </summary> /// <param name="v">Value to compare.</param> public bool NotEqual(Expressional v) => Value.ToString() != v.Value.ToString();
/// <summary> /// Returns true if equals, returns false if not. /// </summary> /// <param name="v">Value to compare.</param> public bool Equal(Expressional v) => Value.ToString() == v.Value.ToString();