public override string ToString()
{
StringBuilder sb = new StringBuilder();
if (isConj)
{
if (IsNegated())
{
sb.Append("!(");
}
foreach (TregexPattern node in children)
{
sb.Append(node.ToString());
}
if (IsNegated())
{
sb.Append(")");
}
}
else
{
if (IsNegated())
{
sb.Append("!");
}
sb.Append('[');
for (IEnumerator <TregexPattern> iter = children.GetEnumerator(); iter.MoveNext();)
{
TregexPattern node = iter.Current;
sb.Append(node.ToString());
if (iter.MoveNext())
{
sb.Append(" |");
}
}
sb.Append(']');
}
return(sb.ToString());
}