/// <summary>
/// Renders a source Markdown string to HTML
/// </summary>
/// <param name="srcMarkdown">The markdown to convert to HTML</param>
/// <param name="useEmoji">Wwther to transform or not :emoji: into UTF-8 emojis</param>
/// <returns>The resulting HTML</returns>
public static string ConvertMarkdown2Html(string srcMarkdown, bool useEmoji, string extensions = "")
{
//Configure markdown conversion
MarkdownPipelineBuilder mdPipe = new MarkdownPipelineBuilder().UseAdvancedExtensions();
//Add more extensions
if (!string.IsNullOrWhiteSpace(extensions))
{
mdPipe.Configure(extensions);
}
//Remove the indented code block parser (code blocks must always be fenced)
//This is needed if you want to mix contents from MD and MDH files injected from FPFs and insertfile tags
//and prevent problems when mixing HTML inside a Markdown file contents
mdPipe.BlockParsers.Remove(mdPipe.BlockParsers.Find <Markdig.Parsers.IndentedCodeBlockParser>());
//Add support for non-ASCII characters in the Autolinks for headers
//Remove the previous AutoIdentifierExtension
mdPipe.Extensions.Remove(mdPipe.Extensions.Find <AutoIdentifierExtension>());
//Add AutoIdentifier extension with only AutoLink option
mdPipe.UseAutoIdentifiers(AutoIdentifierOptions.AutoLink);
//Check if we must generate emojis
if (useEmoji)
{
mdPipe = mdPipe.UseEmojiAndSmiley();
}
var pipeline = mdPipe.Build();
//Convert markdown to HTML
return(Markdig.Markdown.ToHtml(srcMarkdown, pipeline)); //Convert to HTML
}
/// <summary>
/// Creates a pipeline automatically configured from an input markdown based on the presence of the configuration tag.
/// </summary>
/// <param name="inputText">The input text.</param>
/// <returns>The pipeline configured from the input</returns>
/// <exception cref="ArgumentNullException"></exception>
public MarkdownPipeline CreatePipelineFromInput(string inputText)
{
if (inputText == null)
{
ThrowHelper.ArgumentNullException(nameof(inputText));
}
var builder = new MarkdownPipelineBuilder();
string defaultConfig = DefaultExtensions;
var indexOfSelfPipeline = inputText.IndexOf(SelfPipelineHintTagStart, StringComparison.OrdinalIgnoreCase);
if (indexOfSelfPipeline >= 0)
{
var optionStart = indexOfSelfPipeline + SelfPipelineHintTagStart.Length;
var endOfTag = inputText.IndexOf("-->", optionStart, StringComparison.OrdinalIgnoreCase);
if (endOfTag >= 0)
{
defaultConfig = inputText.Substring(optionStart, endOfTag - optionStart).Trim();
}
}
if (!string.IsNullOrEmpty(defaultConfig))
{
builder.Configure(defaultConfig);
}
return(builder.Build());
}
private MarkdownPipeline CreatePipeline()
{
MarkdownPipelineBuilder pipelineBuilder = new MarkdownPipelineBuilder();
pipelineBuilder.Configure(_configuration);
pipelineBuilder.Extensions.AddRange(_extensions);
return(pipelineBuilder.Build());
}
/// <summary>
/// Enables optional Markdig extensions that are not added by default with DocFX
/// </summary>
/// <param name="pipeline">The markdown pipeline builder</param>
/// <param name="optionalExtensions">The list of optional extensions</param>
/// <returns>The pipeline with optional extensions enabled</returns>
public static MarkdownPipelineBuilder UseOptionalExtensions(
this MarkdownPipelineBuilder pipeline,
IEnumerable <string> optionalExtensions)
{
if (!optionalExtensions.Any())
{
return(pipeline);
}
pipeline.Configure(string.Join("+", optionalExtensions));
return(pipeline);
}
internal static string Render(
IExecutionContext context,
string configuration,
OrderedList <IMarkdownExtension> extensions,
bool prependLinkRoot,
string content)
{
// Create the pipeline
MarkdownPipelineBuilder pipelineBuilder = new MarkdownPipelineBuilder();
pipelineBuilder.Configure(configuration);
if (extensions != null)
{
pipelineBuilder.Extensions.AddRange(extensions);
}
MarkdownPipeline pipeline = pipelineBuilder.Build();
// Render the content
using (StringWriter writer = new StringWriter())
{
HtmlRenderer htmlRenderer = new HtmlRenderer(writer);
pipeline.Setup(htmlRenderer);
if (prependLinkRoot && context.Settings.ContainsKey(Keys.LinkRoot))
{
htmlRenderer.LinkRewriter = (link) =>
{
if (string.IsNullOrEmpty(link))
{
return(link);
}
if (link[0] == '/')
{
// root-based url, must be rewritten by prepending the LinkRoot setting value
// ex: '/virtual/directory' + '/relative/abs/link.html' => '/virtual/directory/relative/abs/link.html'
link = context.Settings[Keys.LinkRoot] + link;
}
return(link);
};
}
MarkdownDocument document = MarkdownParser.Parse(content, pipeline);
htmlRenderer.Render(document);
writer.Flush();
return(writer.ToString());
}
}
public static IEnumerable <KeyValuePair <string, MarkdownPipeline> > GetPipeline(string extensionsGroupText)
{
// For the standard case, we make sure that both the CommmonMark core and Extra/Advanced are CommonMark compliant!
if (string.IsNullOrEmpty(extensionsGroupText))
{
yield return(new KeyValuePair <string, MarkdownPipeline>("default", new MarkdownPipelineBuilder().Build()));
//yield return new KeyValuePair<string, MarkdownPipeline>("default-trivia", new MarkdownPipelineBuilder().EnableTrackTrivia().Build());
yield return(new KeyValuePair <string, MarkdownPipeline>("advanced", new MarkdownPipelineBuilder() // Use similar to advanced extension without auto-identifier
.UseAbbreviations()
//.UseAutoIdentifiers()
.UseCitations()
.UseCustomContainers()
.UseDefinitionLists()
.UseEmphasisExtras()
.UseFigures()
.UseFooters()
.UseFootnotes()
.UseGridTables()
.UseMathematics()
.UseMediaLinks()
.UsePipeTables()
.UseListExtras()
.UseGenericAttributes().Build()));
yield break;
}
var extensionGroups = extensionsGroupText.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var extensionsText in extensionGroups)
{
var builder = new MarkdownPipelineBuilder();
builder.DebugLog = Console.Out;
if (extensionsText == "jiralinks")
{
builder.UseJiraLinks(new JiraLinkOptions("http://your.company.abc"));
}
else
{
builder = extensionsText == "self" ? builder.UseSelfPipeline() : builder.Configure(extensionsText);
}
yield return(new KeyValuePair <string, MarkdownPipeline>(extensionsText, builder.Build()));
}
}
private static void Check(string text, string expectedResult, string extensions = null)
{
var pipelineBuilder = new MarkdownPipelineBuilder().UsePreciseSourceLocation();
if (extensions != null)
{
pipelineBuilder.Configure(extensions);
}
var pipeline = pipelineBuilder.Build();
var document = Markdown.Parse(text, pipeline);
var build = new StringBuilder();
foreach (var val in document.Descendants())
{
var name = GetTypeName(val.GetType());
build.Append($"{name,-12} ({val.Line,2},{val.Column,2}) {val.Span.Start,2}-{val.Span.End}\n");
var attributes = val.TryGetAttributes();
if (attributes != null)
{
build.Append($"{"attributes",-12} ({attributes.Line,2},{attributes.Column,2}) {attributes.Span.Start,2}-{attributes.Span.End}\n");
}
}
var result = build.ToString().Trim();
expectedResult = expectedResult.Trim();
expectedResult = expectedResult.Replace("\r\n", "\n").Replace("\r", "\n");
if (expectedResult != result)
{
Console.WriteLine("```````````````````Source");
Console.WriteLine(TestParser.DisplaySpaceAndTabs(text));
Console.WriteLine("```````````````````Result");
Console.WriteLine(result);
Console.WriteLine("```````````````````Expected");
Console.WriteLine(expectedResult);
Console.WriteLine("```````````````````");
Console.WriteLine();
}
TextAssert.AreEqual(expectedResult, result);
}
/// <summary>
/// Builds the Markdig processing pipeline and returns a builder.
/// Use this method to override any custom pipeline addins you want to
/// add or append.
///
/// Note you can also add addins using options.MarkdigExtensions which
/// use MarkDigs extension syntax using commas instead of +.
/// </summary>
/// <param name="options"></param>
/// <param name="builder"></param>
/// <returns></returns>
protected virtual MarkdownPipelineBuilder BuildPipeline(MarkdownOptionsConfiguration options, MarkdownPipelineBuilder builder)
{
if (options.AutoLinks)
{
builder = builder.UseAutoLinks();
}
if (options.AutoHeaderIdentifiers)
{
builder = builder.UseAutoIdentifiers();
}
if (options.Abbreviations)
{
builder = builder.UseAbbreviations();
}
if (options.StripYamlFrontMatter)
{
builder = builder.UseYamlFrontMatter();
}
if (options.EmojiAndSmiley)
{
builder = builder.UseEmojiAndSmiley();
}
if (options.MediaLinks)
{
builder = builder.UseMediaLinks();
}
if (options.ListExtras)
{
builder = builder.UseListExtras();
}
if (options.Figures)
{
builder = builder.UseFigures();
}
if (options.GithubTaskLists)
{
builder = builder.UseTaskLists();
}
if (options.SmartyPants)
{
builder = builder.UseSmartyPants();
}
if (options.Diagrams)
{
builder = builder.UseDiagrams();
}
if (UsePragmaLines)
{
builder = builder.UsePragmaLines();
}
try
{
if (!string.IsNullOrWhiteSpace(options.MarkdigExtensions))
{
builder = builder.Configure(options.MarkdigExtensions.Replace(",", "+"));
}
}
catch (ArgumentException ex)
{
// One or more of the extension options is invalid.
mmApp.Log("Failed to load Markdig extensions: " + options.MarkdigExtensions + "\r\n" + ex.Message, ex);
}
return(builder);
}
/// <summary>
/// Builds the Markdig processing pipeline and returns a builder.
/// Use this method to override any custom pipeline addins you want to
/// add or append.
///
/// Note you can also add addins using options.MarkdigExtensions which
/// use MarkDigs extension syntax using commas instead of +.
/// </summary>
/// <param name="options"></param>
/// <param name="builder"></param>
/// <returns></returns>
protected virtual MarkdownPipelineBuilder BuildPipeline(MarkdownOptionsConfiguration options, MarkdownPipelineBuilder builder)
{
if (options.AutoLinks)
{
builder = builder.UseAutoLinks();
}
if (options.AutoHeaderIdentifiers)
{
builder = builder.UseAutoIdentifiers(Markdig.Extensions.AutoIdentifiers.AutoIdentifierOptions.GitHub);
}
if (options.Abbreviations)
{
builder = builder.UseAbbreviations();
}
if (options.UseTables)
{
builder = builder
.UsePipeTables()
.UseGridTables();
}
if (options.StripYamlFrontMatter)
{
builder = builder.UseYamlFrontMatter();
}
if (options.EmojiAndSmiley)
{
builder = builder.UseEmojiAndSmiley(true);
}
if (options.MediaLinks)
{
builder = builder.UseMediaLinks();
}
if (options.ListExtras)
{
builder = builder.UseListExtras();
}
if (options.Figures)
{
builder = builder.UseFigures();
}
if (options.GithubTaskLists)
{
builder = builder.UseTaskLists();
}
if (options.SmartyPants)
{
builder = builder.UseSmartyPants();
}
if (options.Diagrams)
{
builder = builder.UseDiagrams();
}
if (options.CustomContainers)
{
builder = builder.UseCustomContainers();
}
if (options.Attributes)
{
builder = builder.UseGenericAttributes();
}
if (options.FootersAndFootnotes)
{
builder = builder
.UseFooters()
.UseFootnotes();
}
if (options.NoHtml)
{
builder = builder.DisableHtml();
}
builder = builder.UseEmphasisExtras();
if (UsePragmaLines)
{
builder = builder.UsePragmaLines();
}
try
{
if (!string.IsNullOrWhiteSpace(options.MarkdigExtensions))
{
builder = builder.Configure(options.MarkdigExtensions.Replace(",", "+"));
}
}
catch (ArgumentException ex)
{
// One or more of the extension options is invalid.
mmApp.Log("Failed to load Markdig extensions: " + options.MarkdigExtensions + "\r\n" + ex.Message, ex);
// reset to default
options.MarkdigExtensions = string.Empty;
builder = builder.Configure(options.MarkdigExtensions.Replace(",", "+"));
}
return(builder);
}
