public object Execute(KarinEngine engine, FunctionToken token, object pipedObj)
{
if (!((token.IsPipe && token.Arguments.Length == 0) ||
(!token.IsPipe && token.Arguments.Length == 1)))
{
throw new KarinException($"{Name}関数の引数の数が不正です。");
}
var arg = token.IsPipe ? pipedObj : engine.Ride(token.Arguments[0]);
if (!(arg is string))
{
throw new KarinException($"{Name}関数の引数が文字列ではありません。");
}
var s = (string)arg;
var sb = new StringBuilder(s.Length);
int pre = 0;
var ptn = new Regex(@"{\s*(\$\$?[^\s\$\{\}]+)\s*}");
foreach (Match m in ptn.Matches(s))
{
var val = engine.Eval(m.Value);
sb.Append(s.Substring(pre, m.Index - pre));
sb.Append(val);
pre = m.Index + m.Length;
}
sb.Append(s.Substring(pre, s.Length - pre));
return(sb.ToString());
}
public object Execute(KarinEngine engine, FunctionToken token, object pipedObj)
{
if (!((token.IsPipe && token.Arguments.Length == 0) ||
(!token.IsPipe && token.Arguments.Length == 1)))
{
throw new KarinException($"{Name}関数の引数の数が不正です。");
}
var s = token.IsPipe ? pipedObj : engine.Ride(token.Arguments[0]);
if (!(s is string))
{
throw new KarinException($"構文関数'{token.Name}'を実行できません。");
}
return(engine.Eval((string)s));
}