private void TextBox_StyleNeeded(object sender, ScintillaNET.StyleNeededEventArgs e)
{
ScintillaNET.Scintilla scintilla = ((ScintillaNET.Scintilla)sender);
var startPos = scintilla.GetEndStyled();
var endPos = e.Position;
scintilla.StartStyling(100);
scintilla.SetStyling(100, 1);
scintilla.SetStyling(100, 2);
}
public override void Highlight(ScintillaNET.Scintilla sci, int start, int end, AppSettings s)
{
bool startsWithNL = sci.GetCharAt(start) == '\n' || (start + 1 < sci.TextLength && sci.GetCharAt(start) == '\r' && sci.GetCharAt(start + 1) == '\n');
bool endsWithNL = sci.GetCharAt(end) == '\n' || (end - 1 >= 0 && sci.GetCharAt(end - 1) == '\n');
// move back to start of line
if (!startsWithNL)
{
for (int i = 0; i < MAX_BACKTRACE && start > 0; i++, start--)
{
if (start > 0 && sci.GetCharAt(start - 1) == '\n')
{
break;
}
}
}
// move forward to end of line
if (!endsWithNL)
{
for (int i = 0; i < MAX_FORWARDTRACE && end < sci.TextLength; i++, end++)
{
if (end >= sci.TextLength || sci.GetCharAt(end) == '\n')
{
break;
}
}
}
var text = sci.GetTextRange(start, end - start);
if (s.LinkMode != LinkHighlightMode.Disabled)
{
LinkHighlight(sci, start, text);
}
else
{
sci.StartStyling(start);
sci.SetStyling(end - start, STYLE_DEFAULT);
}
}
public override void Highlight(ScintillaNET.Scintilla sci, int istart, int iend, AppSettings s)
{
// http://spec.commonmark.org/0.28/
int visualStart = istart;
for (; visualStart > 0; visualStart--)
{
if (visualStart > 0 && sci.GetCharAt(visualStart - 1) == '\n')
{
break;
}
}
int visualEnd = iend;
var fulltext = sci.Text;
var maxLen = fulltext.Length;
var start = 0;
var active = false;
var smode = ParserSuperMode.None;
for (;;)
{
var lineEnd = Math.Min(start + 1, maxLen);
while (lineEnd < maxLen && sci.GetCharAt(lineEnd) != '\n')
{
lineEnd++;
}
if (lineEnd < maxLen)
{
lineEnd++;
}
var text = fulltext.Substring(start, lineEnd - start);
var isTildeFence = text.Trim().StartsWith("~~~");
var isTickFence = text.Trim().StartsWith("```");
bool resetFenceBlock = false;
if (smode == ParserSuperMode.None && isTildeFence)
{
smode = ParserSuperMode.FencedTildeBlock;
}
else if (smode == ParserSuperMode.FencedTildeBlock && isTildeFence)
{
resetFenceBlock = true;
}
else if (smode == ParserSuperMode.None && isTickFence)
{
smode = ParserSuperMode.FencedBacktickBlock;
}
else if (smode == ParserSuperMode.FencedBacktickBlock && isTickFence)
{
resetFenceBlock = true;
}
if (!active && visualStart < lineEnd)
{
sci.StartStyling(start);
active = true;
}
if (active)
{
if (smode == ParserSuperMode.FencedBacktickBlock || smode == ParserSuperMode.FencedTildeBlock)
{
HighlightFencedLine(sci, text);
}
else if (smode == ParserSuperMode.None)
{
HighlightLine(sci, text, s);
}
}
if (resetFenceBlock)
{
smode = ParserSuperMode.None;
}
if (lineEnd >= visualEnd)
{
return;
}
start = lineEnd;
}
}
