private static bool ParseJObjectOperationTokenExpression(string query, out IJObjectTokenExpression expression)
{
expression = null;
//only worth checking if string length > 3 (ie 1=1)
if (query.Length <= 2)
{
return(false);
}
for (var i = 0; i < query.Length - 1; i++)
{
if (Comparators.Contains(query.Substring(i, 2))) //check current and next char
{
{
expression = new JObjectOperationTokenExpression(query.Substring(0, i), query.Substring(i, 2), query.Substring(i + 2));
return(true);
}
}
if (Comparators.Contains(query.Substring(i, 1))) //check current and next char
{
{
expression = new JObjectOperationTokenExpression(query.Substring(0, i), query.Substring(i, 1), query.Substring(i + 1));
return(true);
}
}
}
return(false);
}
private static bool ParseJObjectLogicalOperationTokenExpression(string query, out IJObjectTokenExpression expression)
{
expression = null;
//need to on finding a bracket keep going until we find the end bracket then set that as a value logic
//the value logic can then be used and evaluated in the same way
var bracketCount = 0;
var inArrayAction = 0;
//split & | operators
for (var i = 0; i < query.Length; i++)
{
var charValue = query[i];
//handle brackets to ignore nested &|
bracketCount += charValue == '(' ? 1 : 0;
bracketCount -= charValue == ')' ? 1 : 0;
inArrayAction += charValue == '[' ? 1 : 0;
inArrayAction -= charValue == ']' ? 1 : 0;
//if its not a logic operator outside of brackets carry on
if (!Operators.Contains(charValue) || bracketCount != 0 || inArrayAction != 0)
{
continue;
}
var l = query[new Range(0, i)];
var o = charValue.ToString();
var r = query[new Range(i + 1, query.Length)];
{
expression = new JObjectOperationTokenExpression(l, o, r);
return(true);
}
}
return(false);
}
