private async Task <string> FigureAsync(HtmlNode node)
{
var img = node.Child("img");
if (Image.IsDataUrl(img.Attr("src")))
{
throw new InvalidOperationException("<img> src is not rendered yet.");
}
var src = img.Attr("src");
img.Attributes.RemoveAll();
img.SetAttributeValue("class", "lazyload lazyloading");
img.SetAttributeValue("src", await _imageProcessor.Minimize(src));
img.SetAttributeValue("data-src", src);
var caption = node.Child("figcaption");
if (string.IsNullOrWhiteSpace(caption?.InnerHtml))
{
return(Emmet.El("figure", img.OuterHtml));
}
if (caption.Attributes.Contains("contenteditable"))
{
caption.Attributes["contenteditable"].Remove();
}
img.SetAttributeValue("alt", caption.InnerText);
return(Emmet.El("figure", string.Join("", img.OuterHtml, caption.OuterHtml)));
}
private async Task <string> Code(HtmlNode node)
{
var plain = node.InnerHtml.Trim();
var highlightedLines = GetHighlightedLines(GetCode(plain));
var formattedCode = await _codeFormatter.FormatAsync(
GetLanguage(plain),
GetCode(plain).ReplaceWithPattern(@"\s*#hl", string.Empty));
var lineNumbers = string.Empty;
var lines = formattedCode.SplitWithPattern(@"\r?\n");
for (var i = 0; i < lines.Count(); i++)
{
var no = i + 1;
if (highlightedLines.Contains(i))
{
lines[i] = Emmet.El("span.highlight", lines[i]);
Increment(ref lineNumbers, Emmet.El("span.highlight", no));
}
else
{
Increment(ref lineNumbers, no);
}
}
formattedCode = lines.JoinLines();
if (GetDefinitionLine(plain).Contains("no-line-number"))
{
return(Emmet.El("div.code>pre", formattedCode));
}
var table = $"<table><tr><td>{lineNumbers.Trim()}</td><td>{formattedCode}</td></tr></table>";
return(Emmet.El("div.code>pre", table));
}
public static string El(this HtmlNode node, string selector) => Emmet.El(selector, node.InnerHtml.Trim());
public static string ElChildren(this HtmlNode node) =>
Emmet.El(node.OriginalName, string.Join("", node.ChildNodes.Select(El)));
public static string El(this HtmlNode node) => string.IsNullOrWhiteSpace(node.InnerHtml) ? string.Empty : Emmet.El(node.OriginalName, node.InnerHtml.Trim());
