/// <summary>
/// 取得节点的处理函数
/// </summary>
/// <param name="left">语法类型</param>
/// <param name="leave">Token类型</param>
/// <param name="nilserver">空节点展开式处理函数</param>
/// <returns>候选式实例</returns>
public CandidateFunction GetCFunction(SyntaxType left, TokenType leave, iHandle nilserver)
{
try
{
if (left == SyntaxType.epsilonLeave)
{
return(new CandidateFunction(nilserver, CFunctionType.umi_epsilon));
}
CandidateFunction candidator = this.GetCFunction(this.leftNodesDict[left], this.nextLeavesDict[leave]);
return(candidator ?? new CandidateFunction(null, CFunctionType.umi_errorEnd));
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
Console.WriteLine(String.Format("{0} --> {1}", left.ToString(), leave.ToString()));
throw;
}
}
/// <summary>
/// 设置候选式处理器
/// </summary>
/// <param name="proc">处理函数委托</param>
/// <param name="type">候选式类型</param>
public void SetProc(iHandle proc, CFunctionType type)
{
this.candidateProcessor = proc;
this.candidateType = type;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="proc">处理函数委托</param>
/// <param name="type">候选式类型</param>
public CandidateFunction(iHandle proc, CFunctionType type)
{
this.SetProc(proc, type);
}
