bool MarkTokensInLine(IDocument document, int lineNumber, ref bool spanChanged)
{
currentLineNumber = lineNumber;
bool processNextLine = false;
LineSegment previousLine = (lineNumber > 0 ? document.GetLineSegment(lineNumber - 1) : null);
currentSpanStack = ((previousLine != null && previousLine.HighlightSpanStack != null) ? previousLine.HighlightSpanStack.Clone() : null);
if (currentSpanStack != null)
{
while (!currentSpanStack.IsEmpty && currentSpanStack.Peek().StopEOL)
{
currentSpanStack.Pop();
}
if (currentSpanStack.IsEmpty)
{
currentSpanStack = null;
}
}
currentLine = (LineSegment)document.LineSegmentCollection[lineNumber];
if (currentLine.Length == -1) // happens when buffer is empty !
{
return(false);
}
List <TextWord> words = ParseLine(document);
if (currentSpanStack != null && currentSpanStack.IsEmpty)
{
currentSpanStack = null;
}
// Check if the span state has changed, if so we must re-render the next line
// This check may seem utterly complicated but I didn't want to introduce any function calls
// or allocations here for perf reasons.
if (currentLine.HighlightSpanStack != currentSpanStack)
{
if (currentLine.HighlightSpanStack == null)
{
processNextLine = false;
foreach (Span sp in currentSpanStack)
{
if (!sp.StopEOL)
{
spanChanged = true;
processNextLine = true;
break;
}
}
}
else if (currentSpanStack == null)
{
processNextLine = false;
foreach (Span sp in currentLine.HighlightSpanStack)
{
if (!sp.StopEOL)
{
spanChanged = true;
processNextLine = true;
break;
}
}
}
else
{
SpanStack.Enumerator e1 = currentSpanStack.GetEnumerator();
SpanStack.Enumerator e2 = currentLine.HighlightSpanStack.GetEnumerator();
bool done = false;
while (!done)
{
bool blockSpanIn1 = false;
while (e1.MoveNext())
{
if (!((Span)e1.Current).StopEOL)
{
blockSpanIn1 = true;
break;
}
}
bool blockSpanIn2 = false;
while (e2.MoveNext())
{
if (!((Span)e2.Current).StopEOL)
{
blockSpanIn2 = true;
break;
}
}
if (blockSpanIn1 || blockSpanIn2)
{
if (blockSpanIn1 && blockSpanIn2)
{
if (e1.Current != e2.Current)
{
done = true;
processNextLine = true;
spanChanged = true;
}
}
else
{
spanChanged = true;
done = true;
processNextLine = true;
}
}
else
{
done = true;
processNextLine = false;
}
}
}
}
else
{
processNextLine = false;
}
//// Alex: remove old words
if (currentLine.Words != null)
{
currentLine.Words.Clear();
}
currentLine.Words = words;
currentLine.HighlightSpanStack = (currentSpanStack != null && !currentSpanStack.IsEmpty) ? currentSpanStack : null;
return(processNextLine);
}
private bool MarkTokensInLine(IDocument document, int lineNumber, ref bool spanChanged)
{
LineSegment lineSegment;
SpanStack spanStacks;
SpanStack spanStacks1;
this.currentLineNumber = lineNumber;
bool flag = false;
if (lineNumber > 0)
{
lineSegment = document.GetLineSegment(lineNumber - 1);
}
else
{
lineSegment = null;
}
LineSegment lineSegment1 = lineSegment;
if (lineSegment1 == null || lineSegment1.HighlightSpanStack == null)
{
spanStacks = null;
}
else
{
spanStacks = lineSegment1.HighlightSpanStack.Clone();
}
this.currentSpanStack = spanStacks;
if (this.currentSpanStack != null)
{
while (!this.currentSpanStack.IsEmpty && this.currentSpanStack.Peek().StopEOL)
{
this.currentSpanStack.Pop();
}
if (this.currentSpanStack.IsEmpty)
{
this.currentSpanStack = null;
}
}
this.currentLine = document.LineSegmentCollection[lineNumber];
if (this.currentLine.Length == -1)
{
return(false);
}
List <TextWord> textWords = this.ParseLine(document);
if (this.currentSpanStack != null && this.currentSpanStack.IsEmpty)
{
this.currentSpanStack = null;
}
if (this.currentLine.HighlightSpanStack == this.currentSpanStack)
{
flag = false;
}
else if (this.currentLine.HighlightSpanStack == null)
{
flag = false;
foreach (Span span in this.currentSpanStack)
{
if (span.StopEOL)
{
continue;
}
spanChanged = true;
flag = true;
break;
}
}
else if (this.currentSpanStack != null)
{
SpanStack.Enumerator enumerator = this.currentSpanStack.GetEnumerator();
SpanStack.Enumerator enumerator1 = this.currentLine.HighlightSpanStack.GetEnumerator();
bool flag1 = false;
while (!flag1)
{
bool flag2 = false;
while (enumerator.MoveNext())
{
if (enumerator.Current.StopEOL)
{
continue;
}
flag2 = true;
break;
}
bool flag3 = false;
while (enumerator1.MoveNext())
{
if (enumerator1.Current.StopEOL)
{
continue;
}
flag3 = true;
break;
}
if (!flag2 && !flag3)
{
flag1 = true;
flag = false;
}
else if (!flag2 || !flag3)
{
spanChanged = true;
flag1 = true;
flag = true;
}
else
{
if (enumerator.Current == enumerator1.Current)
{
continue;
}
flag1 = true;
flag = true;
spanChanged = true;
}
}
}
else
{
flag = false;
foreach (Span highlightSpanStack in this.currentLine.HighlightSpanStack)
{
if (highlightSpanStack.StopEOL)
{
continue;
}
spanChanged = true;
flag = true;
break;
}
}
if (this.currentLine.Words != null)
{
this.currentLine.Words.Clear();
}
this.currentLine.Words = textWords;
LineSegment lineSegment2 = this.currentLine;
if (this.currentSpanStack == null || this.currentSpanStack.IsEmpty)
{
spanStacks1 = null;
}
else
{
spanStacks1 = this.currentSpanStack;
}
lineSegment2.HighlightSpanStack = spanStacks1;
return(flag);
}