help the tags

src/Yavsc/Helpers/HtmlHelpers.cs

@@ -2,22 +2,65 @@ using System;
 using Microsoft.AspNetCore.Html;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
 using Yavsc.Models.Drawing;
+using AsciiDocNet;
+using Yavsc.Models.Blog;
+using System.Linq.Expressions;
+
+
+public static class AsciiDocHelpers
+        {
+            public static IHtmlContent AsciiDocFor<TModel> (this IHtmlHelper<TModel>  html, 
+            Expression<Func<TModel, string>> expression)
+            {
+                var span = new TagBuilder("p"){ TagRenderMode = TagRenderMode.SelfClosing };
+                span.InnerHtml.Append (
+                html.ValueFor<string>(expression, "{0}"));
+                return span.RenderBody();
+            }
+
+            public static string AsciiDoc(IHtmlHelper<BlogPost> htmlHelper, string text)
+            {
+                return AsciiDoc(htmlHelper, text, null);
+            }
+
+            private static string AsciiDoc(IHtmlHelper<BlogPost> htmlHelper, string text, object htmlAttributes)
+            {
+                // Create tag builder
+                var builder = new TagBuilder("div");
+                var document = Document.Parse(text);
+
+                // builder.InnerHtml = .
+
+                // Add attributes
+                builder.MergeAttribute("class", "ascii");
+                builder.MergeAttributes(new RouteValueDictionary(htmlAttributes));
+
+                // Render tag
+                return builder.ToString();
+            }
+        }
+
+
 
 namespace Yavsc.Helpers
 {
+    
+        
     public static class HtmlHelpers
     {
         public static HtmlString Color(this Color c)
         {
-            if (c==null) return new HtmlString("#000");
-             return new HtmlString(String.Format("#{0:X2}{1:X2}{2:X2}", c.Red, c.Green, c.Blue));
+            if (c == null) return new HtmlString("#000");
+            return new HtmlString(String.Format("#{0:X2}{1:X2}{2:X2}", c.Red, c.Green, c.Blue));
         }
         public static string ToAbsolute(this HttpRequest request, string url)
         {
             var host = request.Host;
-            var isSecure = request.Headers[Constants.SshHeaderKey]=="on";
+            var isSecure = request.Headers[Constants.SshHeaderKey] == "on";
             return (isSecure ? "https" : "http") + $"://{host}/{url}";
         }
+
     }
 }