public bool CurrentEqualTo(string rother, StringComparison comp)
{
if (CurrentPosition + rother.Length > RowString.Length)
{
return(false);
}
var sub = RowString.Substring(CurrentPosition, rother.Length);
return(sub.Equals(rother, comp));
}
public string Substring(int start, int length)
{
if (start >= RowString.Length || length == 0)
{
return("");
}
if (start + length > RowString.Length)
{
length = RowString.Length - start;
}
return(RowString.Substring(start, length));
}
public string Substring()
{
if (CurrentPosition >= RowString.Length)
{
return("");
}
if (CurrentPosition == 0)
{
return(RowString);
}
return(RowString.Substring(CurrentPosition));
}
internal void Replace(int start, int count, string src)
{
//引数に正しい数字が送られてくること前提
RowString = RowString.Remove(start, count).Insert(start, src);
CurrentPosition = start;
}
/// <summary>
/// 検索文字列の相対位置を返す。見つからない場合、負の値。
/// </summary>
public int Find(char c)
{
return(RowString.IndexOf(c, CurrentPosition) - CurrentPosition);
}
/// <summary>
/// 検索文字列の相対位置を返す。見つからない場合、負の値。
/// </summary>
/// <param name="str"></param>
public int Find(string str)
{
return(RowString.IndexOf(str, CurrentPosition) - CurrentPosition);
}
