public virtual INode CreateNode(PseudoList item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
try
{
var car = item.GetCarSymbolName();
INode node;
switch (car)
{
case "EXACT-TEXT":
node = new ExactTextNode(
item.GetSingleKeywordArgument <StringAtom>(":value").Value,
this.ParseTextClasses(item.GetAllKeywordArguments(":classes")),
_isCaseSensitive,
null,
this.NodeFamily,
item.GetItemName());
break;
case "SOME-TEXT":
node = new TextNode(
this.ParseTextClasses(item.GetAllKeywordArguments(":classes")),
null,
this.NodeFamily,
item.GetItemName());
break;
case "MULTI-TEXT":
node = new MultiTextNode(
item.GetAllKeywordArguments(":values").Cast <StringAtom>().Select(x => x.Value),
this.ParseTextClasses(item.GetAllKeywordArguments(":classes")),
_isCaseSensitive,
null,
this.NodeFamily,
item.GetItemName());
break;
case "EXACT-PUNCTUATION":
node = new ExactPunctuationNode(
item.GetSingleKeywordArgument <StringAtom>(":value").Value.Single(),
null,
this.NodeFamily,
item.GetItemName());
break;
// todo: some-number?
case "SOME-INTEGER":
node = new IntegerNode(
null,
this.NodeFamily,
item.GetItemName());
break;
case "FALLBACK":
var name = item.GetItemName();
if (name == null)
{
throw new BuildingException("Fallback node must have a name.");
}
node = new FallbackNode(
this.CreateFallbackPredicate(name),
this.NodeFamily,
name);
break;
default:
return(null);
}
return(node);
}
catch (Exception ex)
{
throw new BuildingException($"Could not build a node from item {item}.", ex);
}
}
