public class MarkdownParser()

in src/Elastic.Markdown/Myst/MarkdownParser.cs [23:165]
127 lines of code
4 McCabe index (conditional complexity)

public class MarkdownParser(BuildContext build, IParserResolvers resolvers)
{
	private BuildContext Build { get; } = build;
	private IParserResolvers Resolvers { get; } = resolvers;

	public Task<MarkdownDocument> MinimalParseAsync(IFileInfo path, Cancel ctx)
	{
		var state = new ParserState(Build)
		{
			MarkdownSourcePath = path,
			YamlFrontMatter = null,
			DocumentationFileLookup = Resolvers.DocumentationFileLookup,
			CrossLinkResolver = Resolvers.CrossLinkResolver,
			SkipValidation = true
		};
		var context = new ParserContext(state);
		return ParseAsync(path, context, MinimalPipeline, ctx);
	}

	public Task<MarkdownDocument> ParseAsync(IFileInfo path, YamlFrontMatter? matter, Cancel ctx)
	{
		var state = new ParserState(Build)
		{
			MarkdownSourcePath = path,
			YamlFrontMatter = matter,
			DocumentationFileLookup = Resolvers.DocumentationFileLookup,
			CrossLinkResolver = Resolvers.CrossLinkResolver
		};
		var context = new ParserContext(state);
		return ParseAsync(path, context, Pipeline, ctx);
	}

	public Task<MarkdownDocument> ParseSnippetAsync(IFileInfo path, IFileInfo parentPath, YamlFrontMatter? matter, Cancel ctx)
	{
		var state = new ParserState(Build)
		{
			MarkdownSourcePath = path,
			YamlFrontMatter = matter,
			DocumentationFileLookup = Resolvers.DocumentationFileLookup,
			CrossLinkResolver = Resolvers.CrossLinkResolver,
			ParentMarkdownPath = parentPath
		};
		var context = new ParserContext(state);
		return ParseAsync(path, context, Pipeline, ctx);
	}

	public MarkdownDocument ParseStringAsync(string markdown, IFileInfo path, YamlFrontMatter? matter) =>
		ParseMarkdownStringAsync(markdown, path, matter, Pipeline);

	public MarkdownDocument MinimalParseStringAsync(string markdown, IFileInfo path, YamlFrontMatter? matter) =>
		ParseMarkdownStringAsync(markdown, path, matter, MinimalPipeline);

	private MarkdownDocument ParseMarkdownStringAsync(string markdown, IFileInfo path, YamlFrontMatter? matter, MarkdownPipeline pipeline)
	{
		var state = new ParserState(Build)
		{
			MarkdownSourcePath = path,
			YamlFrontMatter = matter,
			DocumentationFileLookup = Resolvers.DocumentationFileLookup,
			CrossLinkResolver = Resolvers.CrossLinkResolver
		};
		var context = new ParserContext(state);
		var markdownDocument = Markdig.Markdown.Parse(markdown, pipeline, context);
		return markdownDocument;
	}

	private static async Task<MarkdownDocument> ParseAsync(
		IFileInfo path,
		MarkdownParserContext context,
		MarkdownPipeline pipeline,
		Cancel ctx)
	{
		if (path.FileSystem is FileSystem)
		{
			//real IO optimize through UTF8 stream reader.
			await using var streamReader = new Utf8StreamReader(path.FullName, fileOpenMode: FileOpenMode.Throughput);
			var inputMarkdown = await streamReader.AsTextReader().ReadToEndAsync(ctx);
			var markdownDocument = Markdig.Markdown.Parse(inputMarkdown, pipeline, context);
			return markdownDocument;
		}
		else
		{
			var inputMarkdown = await path.FileSystem.File.ReadAllTextAsync(path.FullName, ctx);
			var markdownDocument = Markdig.Markdown.Parse(inputMarkdown, pipeline, context);
			return markdownDocument;
		}
	}

	// ReSharper disable once InconsistentNaming
	private MarkdownPipeline? _minimalPipelineCached;

	private MarkdownPipeline MinimalPipeline
	{
		get
		{
			if (_minimalPipelineCached is not null)
				return _minimalPipelineCached;
			var builder = new MarkdownPipelineBuilder()
				.UseYamlFrontMatter()
				.UseInlineAnchors()
				.UseHeadingsWithSlugs()
				.UseDirectives(this);

			_ = builder.BlockParsers.TryRemove<IndentedCodeBlockParser>();
			_minimalPipelineCached = builder.Build();
			return _minimalPipelineCached;
		}
	}

	// ReSharper disable once InconsistentNaming
	private MarkdownPipeline? _pipelineCached;

	public MarkdownPipeline Pipeline
	{
		get
		{
			if (_pipelineCached is not null)
				return _pipelineCached;

			var builder = new MarkdownPipelineBuilder()
				.UseInlineAnchors()
				.UsePreciseSourceLocation()
				.UseDiagnosticLinks()
				.UseHeadingsWithSlugs()
				.UseEmphasisExtras(EmphasisExtraOptions.Default)
				.UseInlineAppliesTo()
				.UseSubstitution()
				.UseComments()
				.UseYamlFrontMatter()
				.UseGridTables()
				.UsePipeTables()
				.UseDirectives(this)
				.UseDefinitionLists()
				.UseEnhancedCodeBlocks()
				.UseHtmxLinkInlineRenderer()
				.DisableHtml()
				.UseHardBreaks();
			_ = builder.BlockParsers.TryRemove<IndentedCodeBlockParser>();
			_pipelineCached = builder.Build();
			return _pipelineCached;
		}
	}
}