/// <summary>
/// Return a fragment of a text line, safely ensuring that "start" and "end" position are within the boundaries
/// of the line. |options| can be used to customize the behavior.
/// </summary>
public static TextLineFragment GetFragment(
this ITextSnapshotLine line,
int start,
int end,
TextLineFragment.Options options)
{
return(TextLineFragment.Create(line, start, end, options));
}
/// <summary>
/// Return a fragment of a text line, safely ensuring that "start" and "end" position are within the boundaries
/// of the line. |options| can be used to customize the behavior.
/// </summary>
public static TextLineFragment Create(ITextSnapshotLine line, int start, int end, TextLineFragment.Options options)
{
if (start < line.Start.Position)
{
start = line.Start.Position;
}
if ((options & TextLineFragment.Options.IncludeLineBreak) == TextLineFragment.Options.IncludeLineBreak)
{
if (end > line.EndIncludingLineBreak.Position)
{
end = line.EndIncludingLineBreak.Position;
}
}
else
{
if (end > line.End.Position)
{
end = line.End.Position;
}
}
if (start > end)
{
return(new TextLineFragment(line, start, 0, options));
}
var count = end - start;
return(new TextLineFragment(line, start, count, options));
}
