/// <summary>
/// Parses content from a file on disk from Markdown to HTML.
/// </summary>
/// <param name="filename">A physical or virtual filename path. If running under System.Web this method uses MapPath to resolve paths.
/// For non-HttpContext environments this file name needs to be fully qualified.</param>
/// <param name="usePragmaLines">Generates line numbers as ids into headers and paragraphs. Useful for previewers to match line numbers to rendered output</param>
/// <param name="forceReload">Forces the parser to reloaded. Otherwise cached instance is used</param>
/// <param name="sanitizeHtml">Strips out scriptable tags and attributes for prevent XSS attacks. Minimal implementation.</param>
/// <returns>HTML result as a string</returns>
public static string ParseFromFile(string markdownFile, bool usePragmaLines = false, bool forceReload = false,
bool sanitizeHtml = false)
{
if (string.IsNullOrEmpty(markdownFile))
{
return(markdownFile);
}
string filename;
var context = MarkdownComponentState.GetHttpContext();
filename = HttpRequestExtensions.MapPath(context.Request, markdownFile);
string markdown = null;
try
{
using (var reader = File.OpenText(filename))
{
markdown = reader.ReadToEnd();
}
}
catch (Exception ex)
{
throw new FileLoadException("Couldn't load Markdown file: " + Path.GetFileName(markdownFile), ex);
}
var parser = MarkdownComponentState.Configuration.MarkdownParserFactory.GetParser();
var html = parser.Parse(markdown, sanitizeHtml);
return(html);
}
/// <summary>
/// Parses content from a file on disk from Markdown to HTML.
/// </summary>
/// <param name="filename">A physical or virtual filename path. If running under System.Web this method uses MapPath to resolve paths.
/// For non-HttpContext environments this file name needs to be fully qualified.</param>
/// <param name="usePragmaLines">Generates line numbers as ids into headers and paragraphs. Useful for previewers to match line numbers to rendered output</param>
/// <param name="forceReload">Forces the parser to reloaded. Otherwise cached instance is used</param>
/// <param name="sanitizeHtml">Strips out scriptable tags and attributes for prevent XSS attacks. Minimal implementation.</param>
/// <returns>HTML result as a string</returns>
public static async Task <string> ParseFromFileAsync(string markdownFile, bool usePragmaLines = false, bool forceReload = false, bool sanitizeHtml = false)
{
if (string.IsNullOrEmpty(markdownFile))
{
return(markdownFile);
}
var context = MarkdownComponentState.GetHttpContext();
var filename = HttpRequestExtensions.MapPath(context.Request, markdownFile);
string content = null;
try
{
using (var reader = File.OpenText(filename))
{
content = await reader.ReadToEndAsync();
}
}
catch (Exception ex)
{
throw new FileLoadException("Couldn't load Markdown file: " + Path.GetFileName(markdownFile), ex);
}
return(Parse(content, usePragmaLines, forceReload, sanitizeHtml));
}
