private FormatContext ToHtmlGroup(Document doc, Group group, bool processRtf)
{
var tabCount = 0;
if (group.Contents.Count > 1 &&
group.Contents[0] is IgnoreUnrecognized &&
(group.Contents[1].GetType().Name == "GenericTag" || group.Contents[1].GetType().Name == "GenericWord"))
{
return(null);
}
if (_inputStyle.Count > 0)
{
_inputStyle.Push(_inputStyle.Peek().Clone());
}
else
{
_inputStyle.Push(new FormatContext());
}
var currStyle = _inputStyle.Peek();
if (group is Row)
{
if (group.Contents.OfType <RightCellBoundary>().Any())
{
currStyle.RemoveWhere(t => t is CellToken);
}
currStyle.RemoveWhere(t => t is NestingLevel);
}
for (var i = 0; i < group.Contents.Count; i++)
{
var token = group.Contents[i];
if (token is HtmlRtf htmlRtf)
{
processRtf = !htmlRtf.Value;
}
else if (processRtf)
{
if (token is RowDefaults && !(group is Row))
{
var table = Table.Create(group.Contents, ref i);
var prevStyle = default(FormatContext);
foreach (var child in table.Contents.OfType <Group>())
{
var usePrevious = prevStyle != null && !child.Contents.OfType <RowDefaults>().Any();
if (usePrevious)
{
_inputStyle.Push(prevStyle);
}
prevStyle = ToHtmlGroup(doc, child, processRtf);
if (usePrevious)
{
_inputStyle.Pop();
}
}
}
else if (token.Type == TokenType.CellFormat)
{
var start = i;
while (i < group.Contents.Count && !(group.Contents[i] is RightCellBoundary))
{
i++;
}
var cell = new CellToken(group.Contents.Skip(start).Take(i - start + 1)
, group as Row
, currStyle.OfType <CellToken>().LastOrDefault());
currStyle.Add(cell);
}
else if (token is ControlWord <BorderPosition> borderSide)
{
var border = new BorderToken(borderSide);
i++;
while (i < group.Contents.Count && border.Add(group.Contents[i]))
{
i++;
}
i--;
currStyle.Add(border);
}
else if ((token.Type & TokenType.Format) == TokenType.Format)
{
currStyle.Add(token);
}
else if (token is Group childGroup)
{
var dest = childGroup.Destination;
if (dest is NumberingTextFallback ||
dest is ListTextFallback ||
dest?.Type == TokenType.HeaderTag ||
dest is NoNestedTables)
{
// skip
}
else if (dest is Header ||
dest is HeaderEven ||
dest is HeaderFirst ||
dest is HeaderOdd ||
dest is Footer ||
dest is FooterFirst ||
dest is FooterOdd)
{
// skip for now
}
else if (dest is FieldInstructions)
{
var instructions = childGroup.Contents
.OfType <Group>().LastOrDefault(g => g.Destination == null && g.Contents.OfType <TextToken>().Any())
?.Contents.OfType <TextToken>().FirstOrDefault()?.Value?.Trim();
if (string.IsNullOrEmpty(instructions) &&
!childGroup.Contents.OfType <Group>().Any() &&
childGroup.Contents.Count == 3)
{
instructions = (childGroup.Contents[2] as TextToken)?.Value;
}
if (!string.IsNullOrEmpty(instructions))
{
var args = instructions.Split(' ');
if (args[0] == "HYPERLINK")
{
currStyle.Add(new HyperlinkToken(args));
}
}
}
else if (dest is BookmarkStart)
{
currStyle.Add(new BookmarkToken()
{
Start = true,
Id = childGroup.Contents.OfType <TextToken>().FirstOrDefault()?.Value
});
}
else if (dest is BookmarkEnd)
{
currStyle.Add(new BookmarkToken()
{
Start = false,
Id = childGroup.Contents.OfType <TextToken>().FirstOrDefault()?.Value
});
}
else if (dest is PictureTag)
{
var pict = new Picture(childGroup);
var style = FixStyles(doc, currStyle);
if (tabCount > 0)
{
_html.AddBreak(style, new Tab(), tabCount);
}
_html.AddPicture(style, pict);
tabCount = 0;
}
else if (dest is Footnote)
{
_footnotes.Add(childGroup);
var linkGroup = new Group();
_footnoteIdx++;
var title = string.Concat(childGroup.Contents
.Select(t =>
{
if (t is TextToken txt)
{
return(txt.Value);
}
if (t.Type == TokenType.BreakTag)
{
return(" ");
}
return("");
}).ToArray());
linkGroup.Contents.Add(new HyperlinkToken()
{
Url = "#" + FootnoteId(_footnoteIdx),
Title = title
});
linkGroup.Contents.Add(new SuperStartToken());
linkGroup.Contents.Add(new TextToken()
{
Value = _footnoteIdx.ToString()
});
ToHtmlGroup(doc, linkGroup, true);
}
else if (childGroup.Contents.OfType <ParagraphNumbering>().Any())
{
foreach (var child in childGroup.Contents.Where(t => t.Type == TokenType.ParagraphFormat))
{
currStyle.Add(child);
}
}
else
{
if (childGroup is Table)
{
(_html as HtmlWriter)?.EnsureCell(currStyle);
}
ToHtmlGroup(doc, childGroup, processRtf);
}
}
else if (token is Tab)
{
tabCount++;
}
else if (token is TextToken text)
{
var style = FixStyles(doc, currStyle);
if (tabCount > 0)
{
_html.AddBreak(style, new Tab(), tabCount);
}
_html.AddText(style, text.Value);
tabCount = 0;
}
else if ((token.Type & TokenType.BreakTag) == TokenType.BreakTag)
{
AddBreak(doc, token, currStyle);
tabCount = 0;
}
}
else if (token is Group childGroup2)
{
ToHtmlGroup(doc, childGroup2, processRtf);
}
}
return(_inputStyle.Pop());
}