/// <summary>
/// Appends a specified number of copies of a shaped character to the end of the
/// current <see cref="ShapedStringBuilder"/> instance.
/// </summary>
/// <param name="value">The value to append.</param>
/// <param name="repeatCount">The number of times to append <paramref name="repeatCount"/>.</param>
/// <returns>A reference to this instance after the append operation has completed.</returns>
public ShapedStringBuilder Append(ShapedChar value, Int32 repeatCount)
{
for (int i = 0; i < repeatCount; i++)
{
Append(value);
}
return(this);
}
/// <summary>
/// Gets the index of the first occurrence of the specified character within the shaped string segment.
/// </summary>
/// <param name="value">The shaped character for which to search.</param>
/// <returns>The index of the first occurrence of the specified shaped character, or -1 if the segment does not contain the shaped character.</returns>
public Int32 IndexOf(ShapedChar value)
{
if (Source is IStringSource <ShapedChar> src)
{
for (int i = 0; i < Length; i++)
{
if (src[i] == value)
{
return(i);
}
}
}
return(-1);
}
/// <summary>
/// Creates the internal buffer for a <see cref="ShapedString"/> instance based on the specified input parameters.
/// </summary>
private static ShapedChar[] CreateShapedString(ShapedChar[] value, Int32 startIndex, Int32 count)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (startIndex < 0 || startIndex >= value.Length)
{
throw new ArgumentOutOfRangeException(nameof(startIndex));
}
if (count < 0 || startIndex + count > value.Length)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
var buffer = new ShapedChar[count];
Array.Copy(value, startIndex, buffer, 0, count);
return(buffer);
}
/// <inheritdoc/>
public void GetChar(Int32 index, out ShapedChar ch)
{
Contract.EnsureRange(index < Length, nameof(index));
ch = buffer[index];
}
/// <inheritdoc/> public void GetChar(Int32 index, out ShapedChar ch) => ch = buffer[index];
/// <summary>
/// Appends a shaped character to the end of the current <see cref="ShapedStringBuilder"/> instance.
/// </summary>
/// <param name="value">The value to append.</param>
/// <returns>A reference to this instance after the append operation has completed.</returns>
public ShapedStringBuilder Append(ShapedChar value)
{
EnsureCapacity(length + 1);
buffer[length++] = value;
return(this);
}
/// <inheritdoc/> public void GetChar(Int32 index, out ShapedChar ch) => ch = this[index];