private static int FindLastNewLineOffset(this IDocument document, int start, int end)
{
if (start >= end)
{
return(end);
}
if (document == null)
{
return(end);
}
var range = new TextRange(start, end);
if (!range.ContainedIn(document.DocumentRange))
{
return(0);
}
var text = document.GetText(range);
if (text == null)
{
return(0);
}
var lastNewLine = text.LastIndexOfAny(StringUtil.NEW_LINE_CHARACTERS);
return(lastNewLine == -1 ? end : start + lastNewLine);
}
private static int CountNewLines(this IDocument document, TextRange range)
{
var result = 0;
if (document == null)
{
return(0);
}
if (!range.ContainedIn(document.DocumentRange))
{
return(0);
}
var text = document.GetText(range);
if (text == null)
{
return(0);
}
foreach (var newLine in StringUtil.NEW_LINE_CHARACTERS)
{
result += StringUtil.Count(text, newLine);
}
return(result);
}