public static bool TryParse(string content, int start, int length, out KirinNode result)
{
result = null;
if (!content.Contains("I learned "))
{
return(false);
}
var match = FunctionStart.Match(content);
if (!match.Success)
{
return(false);
}
string functionName = match.Groups[1].Value;
var node = new KirinFunctionStart(start, length)
{
IsMain = content.StartsWith("Today"),
};
if (FunctionReturn.Any(kw => functionName.Contains(kw)))
{
string keyword = FunctionReturn.First(kw => functionName.Contains(kw));
int keywordIndex = functionName.IndexOf(keyword);
string subContent = functionName.Substring(keywordIndex + keyword.Length - 1);
var returnType = FiMHelper.DeclarationType.Determine(subContent, out string sKeyword);
node.Return = returnType;
string returnString = keyword.Substring(0, keyword.Length - 1) + sKeyword;
functionName = functionName.Substring(0, keywordIndex) + functionName.Substring(keywordIndex + returnString.Length);
}
if (functionName.Contains(FunctionParam))
{
int keywordIndex = functionName.IndexOf(FunctionParam);
string subcontent = functionName.Substring(keywordIndex + FunctionParam.Length);
node.args = new List <KirinFunctionArgument>();
foreach (string param in subcontent.Split(new string[] { " and " }, StringSplitOptions.RemoveEmptyEntries))
{
var returnType = FiMHelper.DeclarationType.Determine(" " + param, out string sKeyword);
string paramName = param.Substring(sKeyword.Length);
node.args.Add(
new KirinFunctionArgument()
{
Type = returnType,
Name = paramName
}
);
}
functionName = functionName.Substring(0, keywordIndex) +
functionName.Substring(keywordIndex + FunctionParam.Length + subcontent.Length);
}
node.Name = functionName;
result = node;
return(true);
}
public KirinFunction(KirinFunctionStart startNode, KirinFunctionEnd endNode)
: base(startNode.Start, (endNode.Start + endNode.Length) - startNode.Start)
{
this.Name = startNode.Name;
this.Today = startNode.IsMain;
this.Arguments = startNode.args;
this.Returns = startNode.Return;
}