public void Trace(string expr, object value, string path)
{
if (string.IsNullOrEmpty(expr))
{
Store(path, value);
return;
}
var i = expr.IndexOf(';');
var atom = i >= 0 ? expr.Substring(0, i) : expr;
var tail = i >= 0 ? expr.Substring(i + 1) : string.Empty;
if (value != null && _system.HasMember(value, atom))
{
Trace(tail, Index(value, atom), path + ";" + atom);
}
else if (atom == "*")
{
Walk(atom, tail, value, path, WalkWild);
}
else if (atom == "..")
{
Trace(tail, value, path);
Walk(atom, tail, value, path, WalkTree);
}
else if (atom.Length > 2 && atom[0] == '(' && atom[atom.Length - 1] == ')')
{
Trace(_eval(atom, value, path.Substring(path.LastIndexOf(';') + 1)) + ";" + tail, value, path);
}
else if (atom.Length > 3 && atom[0] == '?' && atom[1] == '(' && atom[atom.Length - 1] == ')')
{
Walk(atom, tail, value, path, WalkFiltered);
}
else if (RegExp(@"^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$").IsMatch(atom))
{
Slice(atom, tail, value, path);
}
else
{
if (atom.IndexOf(',') >= 0)
{
foreach (string part in RegExp(@"'?,'?").Split(atom))
{
Trace(part + ";" + tail, value, path);
}
}
}
}
public void Trace(string expr, object value, string path)
{
if (expr == null || expr.Length == 0)
{
Store(path, value);
return;
}
int i = expr.IndexOf(';');
string atom = i >= 0 ? expr.Substring(0, i) : expr;
string tail = i >= 0 ? expr.Substring(i + 1) : string.Empty;
if (value != null && system.HasMember(value, atom))
{
Trace(tail, Index(value, atom), path + ";" + atom);
}
else if (atom == "*")
{
Walk(atom, tail, value, path, new WalkCallback(WalkWild));
}
else if (atom == "..")
{
Trace(tail, value, path);
Walk(atom, tail, value, path, new WalkCallback(WalkTree));
}
else if (atom.IndexOf(',') >= 0) // [name1,name2,...]
{
foreach (string part in RegExp(@"'?,'?").Split(atom))
{
Trace(part + ";" + tail, value, path);
}
}
else if (atom.Length > 2 && atom[0] == '(' && atom[atom.Length - 1] == ')') // [(exp)]
{
Trace(eval(atom, value, path.Substring(path.LastIndexOf(';') + 1)) + ";" + tail, value, path);
}
else if (atom.Length > 3 && atom[0] == '?' && atom[1] == '(' && atom[atom.Length - 1] == ')') // [?(exp)]
{
Walk(atom, tail, value, path, new WalkCallback(WalkFiltered));
}
else if (RegExp(@"^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$").IsMatch(atom)) // [start:end:step] Phyton slice syntax
{
Slice(atom, tail, value, path);
}
}
#pragma warning disable S1541 // Ignore complexity for the switch method
private void Trace(object value, string path, string atom, string tail)
#pragma warning restore S1541 // Methods and properties should not be too complex
{
if (value != null && _system.HasMember(value, atom))
{
StoreExpressionTreeLeafNodes(tail, Index(value, atom), path + ";" + atom);
}
else if (atom == "*")
{
Walk(atom, tail, value, path, WalkWild);
}
else if (atom == "..")
{
StoreExpressionTreeLeafNodes(tail, value, path);
Walk(atom, tail, value, path, WalkTree);
}
else if (atom.Length > 2 && atom[0] == '(' && atom[atom.Length - 1] == ')')
{
StoreExpressionTreeLeafNodes(_eval(atom, value, path.Substring(path.LastIndexOf(';') + 1)) + ";" + tail, value, path);
}
else if (atom.Length > 3 && atom[0] == '?' && atom[1] == '(' && atom[atom.Length - 1] == ')')
{
Walk(atom, tail, value, path, WalkFiltered);
}
else if (RegExp(@"^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$").IsMatch(atom))
{
Slice(atom, tail, value, path);
}
else
{
if (atom.IndexOf(',') >= 0)
{
foreach (string part in RegExp(@"'?,'?").Split(atom))
{
StoreExpressionTreeLeafNodes(part + ";" + tail, value, path);
}
}
}
}
IEnumerable <T> Trace <T>(TraceArgs args, Func <object, string[], T> resultor)
{
var stack = new Stack <TraceArgs>();
stack.Push(args);
while (stack.Count > 0)
{
var popped = stack.Pop();
var expr = popped.Expr;
var value = popped.Value;
var path = popped.Path;
if (string.IsNullOrEmpty(expr))
{
if (path != null)
{
yield return(resultor(value, path.Split(Semicolon)));
}
continue;
}
var i = expr.IndexOf(';');
var atom = i >= 0 ? expr.Substring(0, i) : expr;
var tail = i >= 0 ? expr.Substring(i + 1) : string.Empty;
if (value != null && _system.HasMember(value, atom))
{
stack.Push(Args(tail, Index(value, atom), path + ";" + atom));
}
else if (atom == "*")
{
Walk(atom, tail, value, path, (m, l, x, v, p) => stack.Push(Args(m + ";" + x, v, p)));
}
else if (atom == "..")
{
Walk(atom, tail, value, path, (m, l, x, v, p) =>
{
var result = Index(v, m.ToString());
if (result != null && !_system.IsPrimitive(result))
{
stack.Push(Args("..;" + x, result, p + ";" + m));
}
});
stack.Push(Args(tail, value, path));
}
else if (atom.Length > 2 && atom[0] == '(' && atom[atom.Length - 1] == ')') // [(exp)]
{
stack.Push(Args(_eval(atom, value, path.Substring(path.LastIndexOf(';') + 1)) + ";" + tail, value, path));
}
else if (atom.Length > 3 && atom[0] == '?' && atom[1] == '(' && atom[atom.Length - 1] == ')') // [?(exp)]
{
Walk(atom, tail, value, path, (m, l, x, v, p) =>
{
var result = _eval(RegExp.Replace(l, @"^\?\((.*?)\)$", "$1"),
Index(v, m.ToString()), m.ToString());
if (Convert.ToBoolean(result, CultureInfo.InvariantCulture))
{
stack.Push(Args(m + ";" + x, v, p));
}
});
}
else if (RegExp.IsMatch(atom, @"^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$")) // [start:end:step] Python slice syntax
{
foreach (var a in Slice(atom, tail, value, path).Reverse())
{
stack.Push(a);
}
}
else if (atom.IndexOf(',') >= 0) // [name1,name2,...]
{
foreach (var part in RegExp.Split(atom, @"'?,'?").Reverse())
{
stack.Push(Args(part + ";" + tail, value, path));
}
}
}
}
