public CategoryLine( string input )
{
int index;
for ( index = 0; index < input.Length; ++index )
{
if ( Char.IsLetter( input, index ) )
break;
}
if ( index >= input.Length )
throw new FormatException( String.Format( "Input string not correctly formatted ('{0}')", input ) );
m_Indentation = index;
m_Text = input.Substring( index );
}