protected override Comment SpecificParse(SnapshotSpan span, CommentType commentType)
{
var spanText = span.GetText().ToLower();
var commentSpans = new List <SnapshotSpan>();
var firstLineNumber = span.Snapshot.GetLineFromPosition(span.Start).LineNumber;
var lastLineNumber = span.Snapshot.GetLineFromPosition(span.End).LineNumber;
if (firstLineNumber == lastLineNumber) //! The comment span consists of a single line.
{
var startOffset = ParseHelper.SingleLineCommentStartIndex(spanText, "////", commentType);
var spanLength = 0;
if (spanText.StartsWith("//", OrdinalIgnoreCase))
{
spanLength = span.Length - startOffset;
}
else
{
var closerIndex = spanText.IndexOf("*/", OrdinalIgnoreCase);
spanLength = spanText.IndexOfFirstCharReverse(closerIndex - 1) - (startOffset - 1);
}
if (spanLength > 0)
{
commentSpans.Add(new SnapshotSpan(span.Snapshot, span.Start + startOffset, spanLength));
}
}
else //! The comment spans multiple lines
{
var startOffset = ParseHelper.DelimitedCommentStartIndex(spanText, commentType);
var token = Settings.Instance.GetTokenValue(commentType);
for (var curr = firstLineNumber; curr <= lastLineNumber; curr++)
{
var line = span.Snapshot.GetLineFromLineNumber(curr);
var lineText = line.GetText().ToLower();
if (curr == firstLineNumber && lineText.Length > token.Length + 2) //! First line.
{
var index = lineText.IndexOf("/*", OrdinalIgnoreCase);
if (commentType == CommentType.Task)
{
startOffset = lineText.IndexOf(token, OrdinalIgnoreCase);
}
else
{
var indexOfToken = lineText.IndexOf(token, OrdinalIgnoreCase);
startOffset = lineText.IndexOfFirstChar(indexOfToken + token.Length);
}
commentSpans.Add(new SnapshotSpan(span.Snapshot, line.Start + startOffset, line.Length - startOffset));
}
else if (curr > firstLineNumber && curr < lastLineNumber) //! Line in the middle
{
if (!string.IsNullOrWhiteSpace(lineText))
{
startOffset = lineText.IndexOfFirstChar();
commentSpans.Add(new SnapshotSpan(span.Snapshot, line.Start + startOffset, line.Length - startOffset));
}
}
//! Last line . Handle it ONLY if it is more than just a comment ender.
else if (lineText.Contains("*/") && !lineText.Trim().StartsWith("*/", OrdinalIgnoreCase))
{
startOffset = lineText.IndexOfFirstChar();
var closerIndex = lineText.IndexOf("*/", OrdinalIgnoreCase);
var spanLength = lineText.IndexOfFirstCharReverse(closerIndex - 1) - startOffset + 1;
commentSpans.Add(new SnapshotSpan(span.Snapshot, line.Start + startOffset, spanLength));
}
}
}
return(new Comment(commentSpans, commentType));
}
