Code block support

src/Pretzel.Logic/Extensions/YamlExtensions.cs

@@ -1,7 +1,9 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using YamlDotNet.RepresentationModel;
 using System.IO;
+using System.Linq;
 using YamlDotNet.Serialization;
 
 namespace Pretzel.Logic.Extensions
@@ -107,7 +109,11 @@ public static string ExcludeHeader(this string text)
             if (m.Count == 0)
                 return text;
 
-            return text.Replace(m[0].Groups[0].Value, "").Trim();
+            text = text.Replace(m[0].Groups[0].Value, "");
+            var lines = text.Split(new[] { "\r\n", "\n" }, StringSplitOptions.None).ToList();
+            while (lines.Any() && string.IsNullOrWhiteSpace(lines.First()))
+                lines.RemoveAt(0);
+            return string.Join(Environment.NewLine, lines).TrimEnd();
         }
     }
 }

src/Pretzel.Logic/Helpers/MarkdownHelper.cs

@@ -0,0 +1,58 @@
+using System.Text;
+using System.Text.RegularExpressions;
+using MarkdownDeep;
+
+namespace Pretzel.Logic.Helpers
+{
+    public static class MarkdownHelper
+    {
+        public static Markdown CreateMarkdown()
+        {
+            return new Markdown { FormatCodeBlock = FormatCodePrettyPrint };
+        }
+
+        // Original code: http://www.toptensoftware.com/Articles/83/MarkdownDeep-Syntax-Highlighting
+        public static Regex rxExtractLanguage = new Regex("^({{(.+)}}[\r\n])", RegexOptions.Compiled);
+
+        public static string FormatCodePrettyPrint(Markdown m, string code)
+        {
+            // Try to extract the language from the first line
+            var match = rxExtractLanguage.Match(code);
+            string language = null;
+
+            if (match.Success)
+            {
+                // Save the language
+                var g = (Group)match.Groups[2];
+                language = g.ToString();
+
+                // Remove the first line
+                code = code.Substring(match.Groups[1].Length);
+            }
+
+            // If not specified, look for a link definition called "default_syntax" and
+            // grab the language from its title
+            if (language == null)
+            {
+                var d = m.GetLinkDefinition("default_syntax");
+                if (d != null)
+                    language = d.title;
+            }
+
+            // Common replacements
+            if (language == "C#")
+                language = "cs";
+            if (language == "C++")
+                language = "cpp";
+
+            // Wrap code in pre/code tags and add PrettyPrint attributes if necessary
+            if (string.IsNullOrEmpty(language))
+                return string.Format("<pre><code>{0}</code></pre>\n", code);
+            else
+                return string.Format("<pre class=\"prettyprint lang-{0}\"><code>{1}</code></pre>\n",
+                                    language.ToLowerInvariant(), code);
+        }
+
+
+    }
+}

src/Pretzel.Logic/Pretzel.Logic.csproj

@@ -96,6 +96,7 @@
     <Compile Include="Extensions\StringExtensions.cs" />
     <Compile Include="Extensions\Tracing.cs" />
     <Compile Include="Extensions\YamlExtensions.cs" />
+    <Compile Include="Helpers\MarkdownHelper.cs" />
     <Compile Include="Import\BloggerImport.cs" />
     <Compile Include="Import\HtmlToMarkdownConverter.cs" />
     <Compile Include="Import\WordpressImport.cs" />
@@ -211,6 +212,7 @@
     <EmbeddedResource Include="Properties\RazorWiki.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>RazorWiki.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
@@ -270,6 +272,7 @@
     <Content Include="Resources\RazorWiki\default.css" />
     <Content Include="Resources\RazorWiki\style.css" />
     <Content Include="Resources\Style.css" />
+    <Content Include="Resources\run_prettify.js" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Templating\Plugins\" />

src/Pretzel.Logic/Properties/Resources.resx

@@ -133,4 +133,7 @@
   <data name="Style" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\resources\style.css;System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </data>
+  <data name="RunPrettify" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\run_prettify.js;System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
 </root>

src/Pretzel.Logic/Recipe/Recipe.cs

@@ -58,6 +58,7 @@ public void Create()
                         fileSystem.File.WriteAllText(Path.Combine(directory, @"about.md"), Properties.Razor.About);
                         fileSystem.File.WriteAllText(Path.Combine(directory, string.Format(@"_posts\{0}-myfirstpost.md", DateTime.Today.ToString("yyyy-MM-dd"))), Properties.Razor.FirstPost);
                         fileSystem.File.WriteAllText(Path.Combine(directory, @"css\style.css"), Properties.Resources.Style);
+                        fileSystem.File.WriteAllText(Path.Combine(directory, @"js\run_prettify.js"), Properties.Resources.RunPrettify);
                         fileSystem.File.WriteAllText(Path.Combine(directory, @"_config.yml"), Properties.Razor.Config);
                         CreateImages();
                     }
@@ -83,6 +84,7 @@ public void Create()
                     fileSystem.File.WriteAllText(Path.Combine(directory, @"about.md"), Properties.Liquid.About);
                     fileSystem.File.WriteAllText(Path.Combine(directory, string.Format(@"_posts\{0}-myfirstpost.md", DateTime.Today.ToString("yyyy-MM-dd"))), Properties.Liquid.FirstPost);
                     fileSystem.File.WriteAllText(Path.Combine(directory, @"css\style.css"), Properties.Resources.Style);
+                    fileSystem.File.WriteAllText(Path.Combine(directory, @"js\run_prettify.js"), Properties.Resources.RunPrettify);
                     fileSystem.File.WriteAllText(Path.Combine(directory, @"_config.yml"), Properties.Liquid.Config);
 
                     CreateImages();
@@ -161,6 +163,7 @@ private void CreateDirectories()
             fileSystem.Directory.CreateDirectory(Path.Combine(directory, @"_layouts"));
             fileSystem.Directory.CreateDirectory(Path.Combine(directory, @"css"));
             fileSystem.Directory.CreateDirectory(Path.Combine(directory, @"img"));
+            fileSystem.Directory.CreateDirectory(Path.Combine(directory, @"js"));
         }
     }
 }

src/Pretzel.Logic/Resources/Liquid/FirstPost.liquid

@@ -7,4 +7,11 @@ comments: true
 
 ## Hello world...
 
+    {{C#}}
+    static void Main() 
+    {
+        Console.WriteLine("Hello World!");
+    }
+
+
 This is my first post on the site!

src/Pretzel.Logic/Resources/Liquid/Layout.liquid

@@ -28,5 +28,6 @@
 			</div>
 
 		</div>
+		<script src="js/run_prettify.js"></script>
 	</body>
 </html>

src/Pretzel.Logic/Resources/Razor/FirstPost.cshtml

@@ -7,4 +7,12 @@ comments: true
 
 ## Hello world...
 
+Code:
+
+    {{C#}}
+    static void Main() 
+    {
+        Console.WriteLine("Hello World!");
+    }
+
 This is my first post on the site!

src/Pretzel.Logic/Resources/Razor/Layout.cshtml

@@ -30,5 +30,6 @@
 			</div>
 
 		</div>
+		<script src="js/run_prettify.js"></script>
 	</body>
 </html>