internal static CharSequenceAdapter Copy(CharSequenceAdapter other)
{
CharSequenceAdapter buf = new CharSequenceAdapter(other.sequence);
buf.limit = other.limit;
buf.position = other.position;
buf.mark = other.mark;
return(buf);
}
public override ICharSequence SubSequence(int start, int end)
{
if (end < start || start < 0 || end > Remaining)
{
throw new IndexOutOfRangeException();
}
CharSequenceAdapter result = Copy(this);
result.position = position + start;
result.limit = position + end;
return(result);
}
/**
* Creates a new char buffer by wrapping the given char sequence.
* <p>
* The new buffer's position will be {@code start}, limit will be
* {@code end}, capacity will be the length of the char sequence. The new
* buffer is read-only.
*
* @param chseq
* the char sequence which the new buffer will be based on.
* @param start
* the start index, must not be negative and not greater than
* {@code chseq.length()}.
* @param end
* the end index, must be no less than {@code start} and no
* greater than {@code chseq.length()}.
* @return the created char buffer.
* @exception IndexOutOfBoundsException
* if either {@code start} or {@code end} is invalid.
*/
public static CharBuffer Wrap(ICharSequence chseq, int start, int end)
{
if (chseq == null)
{
throw new ArgumentNullException(nameof(chseq));
}
if (start < 0 || end < start || end > chseq.Length)
{
throw new IndexOutOfRangeException();
}
CharBuffer result = new CharSequenceAdapter(chseq);
result.position = start;
result.limit = end;
return(result);
}
