public static bool TryParse(string content, int start, int length, out KirinNode result)
{
result = null;
if (!content.StartsWith(Keyword))
{
return(false);
}
result = new KirinSwitchStart(start, length)
{
RawVariable = content.Substring(Keyword.Length)
};
return(true);
}
public static KirinSwitch ParseNodes(
KirinSwitchStart startNode,
KirinNode[] nodes,
KirinLoopEnd endNode,
string content)
{
var statement = new KirinSwitch(-1, -1);
statement.RawVariable = startNode.RawVariable;
statement.Start = startNode.Start;
statement.Length = (endNode.Start + endNode.Length) - startNode.Start;
string currentCase = string.Empty;
bool isDefault = false;
List <KirinNode> subStatement = new List <KirinNode>();
foreach (var subnode in nodes)
{
if (subnode.NodeType == "KirinSwitchCase")
{
if (subStatement.Count > 0)
{
var s = FiMLexer.ParseStatement(subStatement.ToArray(), content);
if (currentCase != string.Empty)
{
statement.AddCase(s, currentCase);
}
else if (isDefault)
{
statement.AddCase(s);
}
subStatement.Clear();
}
var cNode = subnode as KirinSwitchCase;
currentCase = cNode.RawCase;
isDefault = false;
}
else if (subnode.NodeType == "KirinSwitchCaseDefault")
{
if (subStatement.Count > 0)
{
var s = FiMLexer.ParseStatement(subStatement.ToArray(), content);
if (currentCase != string.Empty)
{
statement.AddCase(s, currentCase);
}
else if (isDefault)
{
statement.AddCase(s);
}
subStatement.Clear();
}
currentCase = string.Empty;
isDefault = true;
}
else
{
if (currentCase == string.Empty && !isDefault)
{
throw new FiMException("Switch case not found");
}
subStatement.Add(subnode);
}
}
if (subStatement.Count > 0)
{
var s = FiMLexer.ParseStatement(subStatement.ToArray(), content);
if (currentCase != string.Empty)
{
statement.AddCase(s, currentCase);
}
else if (isDefault)
{
statement.AddCase(s);
}
subStatement.Clear();
}
return(statement);
}
