/// <summary>
/// Creates a new CharacterString containing a substring of this one.
/// </summary>
/// <param name="startIndex">The zero-based starting character position of the
/// substring in this instance</param>
/// <param name="length">The number of characters in the substring.</param>
/// <returns>A new CharacterString containing the substring.</returns>
public CharacterString Substring(int startIndex, int length)
{
CharacterString substring = new CharacterString();
substring.AddRange(this.Where((c, index) => (index >= startIndex) && (index < startIndex + length)));
return(substring);
}
/// <summary>
/// Removes all leading and trailing whitespace from this CharacterString. This
/// CharacterString is not affected.
/// </summary>
/// <returns>The trimmed CharacterString.</returns>
public CharacterString Trim()
{
CharacterString trimmed = new CharacterString(this);
// trim from the front
while ((trimmed.Count > 0) && (trimmed[0].IsWhitespace))
{
trimmed.RemoveAt(0);
}
// trim from the end
while ((trimmed.Count > 0) && (trimmed[trimmed.Count - 1].IsWhitespace))
{
trimmed.RemoveAt(trimmed.Count - 1);
}
return(trimmed);
}
public void Write(CharacterString text)
{
Vec pos = Vec.Zero;
CheckBounds(pos.X, pos.Y);
foreach (Character c in text)
{
Set(pos, c);
pos += new Vec(1, 0);
// don't run past edge
if (pos.X >= Size.X)
{
break;
}
}
}
