Syntax highlighting support

app/assets/javascripts/pastemaster.coffee

@@ -10,6 +10,6 @@ $ ->
   $contents.focus()
 
   # Binding submit event to new button
-  $button.on 'click', ->
+  $button.on 'mouseup', ->
     $form.submit()
     false

app/assets/stylesheets/pastemaster.styl

@@ -2,11 +2,11 @@
 
 body, input, select {
   font-family: Helvetica, Arial, sans-serif;
-  font-size: 1.2em;
+  font-size: 1em;
 }
 textarea, pre {
   font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, serif;
-  font-size: 1.2em;
+  font-size: 1em;
 }
 html, body, form {
   height: 100%;
@@ -27,6 +27,14 @@ h1 {
   text-transform: uppercase;
   color: #ccc;
 }
+.linenos {
+  padding-right: .5em;
+  color: #ccc;
+  border-right: #eee 1px solid;
+}
+.code {
+  padding-left: .5em;
+}
 
 .container {
   width: 100%;

app/paste.rb

@@ -1,20 +1,21 @@
 class Paste
-  attr_reader :contents
+  attr_reader :contents, :type
 
   class << self
     def find(id)
       record = DB[:pastes].where(id: id).first
-      record ? new(record[:contents]) : nil
+      record ? new(record[:contents], record[:type]) : nil
     end
   end
 
-  def initialize(contents)
+  def initialize(contents, type = nil)
     @contents = contents
+    @type = type
   end
 
   def save
     encrypt!
-    DB[:pastes].insert(contents: contents)
+    DB[:pastes].insert(contents: contents, type: type)
   end
 
   def decrypt(key)
@@ -34,4 +35,16 @@ class Paste
   def decrypt!
     @contents = Encryptor.decrypt(value: Base64.decode64(contents), key: key)
   end
+
+  def highlighted
+    Pygments.highlight(@contents, lexer: 'ruby', options: { linenos: 'table' })
+  end
+
+  def paragraph
+    "<pre>#{@contents}</pre>"
+  end
+
+  def html
+    type ? highlighted : paragraph
+  end
 end