/// <summary>
/// Convert from Markdown string to VT100 encoded string or HTML. Returns MarkdownInfo object.
/// </summary>
/// <param name="markdownString">String with Markdown content to be converted.</param>
/// <param name="conversionType">Specifies type of conversion, either VT100 or HTML.</param>
/// <param name="optionInfo">Specifies the rendering options for VT100 rendering.</param>
/// <returns>MarkdownInfo object with the converted output.</returns>
public static MarkdownInfo Convert(string markdownString, MarkdownConversionType conversionType, PSMarkdownOptionInfo optionInfo)
{
var renderInfo = new MarkdownInfo();
var writer = new StringWriter();
MarkdownPipeline pipeline = null;
if (conversionType.HasFlag(MarkdownConversionType.HTML))
{
pipeline = new MarkdownPipelineBuilder().UseAdvancedExtensions().Build();
var renderer = new Markdig.Renderers.HtmlRenderer(writer);
renderInfo.Html = Markdig.Markdown.Convert(markdownString, renderer, pipeline).ToString();
}
if (conversionType.HasFlag(MarkdownConversionType.VT100))
{
pipeline = new MarkdownPipelineBuilder().Build();
// Use the VT100 renderer.
var renderer = new VT100Renderer(writer, optionInfo);
renderInfo.VT100EncodedString = Markdig.Markdown.Convert(markdownString, renderer, pipeline).ToString();
}
// Always have AST available.
var parsed = Markdig.Markdown.Parse(markdownString, pipeline);
renderInfo.Tokens = parsed;
return(renderInfo);
}
protected string GetMarkdownRendererFromMarkdownDocument(MarkdownDocument document)
{
var pipeline = new MarkdownPipelineBuilder().Build();
var writer = new StringWriter();
var renderer = new Markdig.Renderers.HtmlRenderer(writer);
pipeline.Setup(renderer);
renderer.Render(document);
writer.Flush();
return(writer.ToString());
}
public string RenderHtml(string markdown)
{
if (markdown == null)
{
throw new ArgumentNullException("markdown");
}
var writer = new StringWriter();
var renderer = new Markdig.Renderers.HtmlRenderer(writer);
renderer.ObjectWriteBefore += Renderer_ObjectWriteBefore;
pipelineUnsafe.Setup(renderer);
var document = Markdig.Markdown.Parse(markdown, pipelineUnsafe);
renderer.Render(document);
writer.Flush();
return(writer.ToString());
}
public string RenderHtmlSafe(string markdown, bool keepLineBreaks = false)
{
if (markdown == null)
{
throw new ArgumentNullException("markdown");
}
if (keepLineBreaks)
{
markdown = newlinePreserverRegex.Replace(markdown, NEWLINE_PRESERVER_PATTERN);
}
var writer = new StringWriter();
var renderer = new Markdig.Renderers.HtmlRenderer(writer);
renderer.ObjectWriteBefore += Renderer_ObjectWriteBefore;
pipelineSafe.Setup(renderer);
var document = Markdig.Markdown.Parse(markdown, pipelineSafe);
renderer.Render(document);
writer.Flush();
return(writer.ToString());
}
private async Task <NewsItem> LoadNewsItem(string file)
{
if (!System.IO.File.Exists(file))
{
return(null);
}
var mdPipeline = new MarkdownPipelineBuilder().UseYamlFrontMatter().Build();
var fileContent = await System.IO.File.ReadAllTextAsync(file);
var mdFile = Markdown.Parse(fileContent, mdPipeline);
var frontMatter = (YamlFrontMatterBlock)mdFile.FirstOrDefault(b => b.Parser is YamlFrontMatterParser);
var itemTitleBlock = (HeadingBlock)mdFile.FirstOrDefault(b => b.Parser is HeadingBlockParser);
var itemTitle = itemTitleBlock?.Inline.FirstOrDefault();
var data = frontMatter.Lines.Lines.Select(l => l.Slice.ToString().Split(':', 2).Select(s => s.Trim()).ToList()).Where(s => s.Count > 1).ToDictionary(s => s[0], s => s[1]);
var clearText = Markdown.ToPlainText(fileContent, pipeline: mdPipeline);
var htmlText = Markdown.ToHtml(fileContent, pipeline: mdPipeline);
var fileName = new FileInfo(file).Name;
mdFile.Remove(frontMatter);
mdFile.Remove(itemTitleBlock);
var cleanedOutput = string.Empty;
using (var tw = new StringWriter())
{
var x = new Markdig.Renderers.HtmlRenderer(tw);
x.Write(mdFile);
tw.Flush();
cleanedOutput = tw.ToString();
}
var newsItem = new NewsItem
{
Title = itemTitle.ToString(),
Description = cleanedOutput,
Link = Url.Page("/News", null, null, HttpContext.Request.Scheme, HttpContext.Request.Host.ToString()) + "/" + fileName.Replace(".md", ""),
CleanText = clearText
};
if (data.ContainsKey("pubdate"))
{
if (DateTimeOffset.TryParse(data["pubdate"], out var articleTime))
{
newsItem.PubDate = articleTime;
}
}
if (data.ContainsKey("category"))
{
newsItem.Category = data["category"];
}
return(newsItem);
}
