private static bool CheckForOpAndSplit(string input, string op, ChunkedBools ret)
{
if (input.Contains(op))
{
ret.Children = input.Split(new string[] { op }, StringSplitOptions.RemoveEmptyEntries)
.Select(i => new ChunkedBools(i.Trim())).ToList();
for (int i = 1; i < ret.Children.Count; i++)
{
ret.Children[i].LeadingOp = op;
}
return(true);
}
return(false);
}
public static ChunkedBools Decompose(string input)
{
if (string.IsNullOrEmpty(input))
{
return(null);
}
if (!Constants.BooleanOperators.Any(b => input.Contains(b)))
{
return(new ChunkedBools(input));
}
var ret = new ChunkedBools(input);
DecomposeChunk(ret);
return(ret);
}
private static void DecomposeChunk(ChunkedBools current)
{
bool didSplit = false;
if (current.Statement.StartsWith("("))
{
var index = 0;
var block = ParenBlockBuilder.ConsumeParenBlock(current.Statement, ref index);
current.Children = new List <ChunkedBools>();
current.Children.Add(new ChunkedBools(block.Substring(1, block.Length - 2)));
var remaining = current.Statement.Substring(block.Length).Trim();
var firstSpace = remaining.IndexOf(" ");
var op = remaining.Substring(0, firstSpace);
var statement = remaining.Substring(firstSpace + 1);
current.Children.Add(new ChunkedBools(statement, op));
didSplit = true;
}
else if (current.Statement.Contains("("))
{
var index = 0;
var block = ParenBlockBuilder.ConsumeParenBlock(current.Statement, ref index);
current.Children = new List <ChunkedBools>();
var remaining = current.Statement.Substring(0, index).Trim();
var space = remaining.LastIndexOf(" ");
var statement = remaining.Substring(0, space);
var op = remaining.Substring(space + 1);
current.Children.Add(new ChunkedBools(statement));
current.Children.Add(new ChunkedBools(block.Substring(1, block.Length - 2), op));
didSplit = true;
}
else
{
didSplit = CheckForOpAndSplit(current.Statement, "and", current) || CheckForOpAndSplit(current.Statement, "or", current);
}
if (didSplit && current.Children != null)
{
current.Children.ForEach(c => DecomposeChunk(c));
}
}
