Italic style support

app/assets/javascripts/player/brush.js.coffee

@@ -5,7 +5,7 @@ class AsciiIo.Brush
     @cache = {}
 
   @hash: (brush) ->
-    "#{brush.fg}_#{brush.bg}_#{brush.bright}_#{brush.underline}"
+    "#{brush.fg}_#{brush.bg}_#{brush.bright}_#{brush.underline}_#{brush.italic}"
 
   @create: (options) ->
     options ||= {}
@@ -24,3 +24,4 @@ class AsciiIo.Brush
     @bg        = options.bg
     @bright    = options.bright
     @underline = options.underline
+    @italic    = options.italic

app/assets/javascripts/player/terminal_view.js.coffee

@@ -86,6 +86,9 @@ class AsciiIo.TerminalView extends Backbone.View
         if brush.underline
           span += " underline"
 
+        if brush.italic
+          span += " italic"
+
         span += " bg" + brush.bg if brush.bg isnt undefined
         span += " cursor visible" if hasCursor
         span += "\">"

app/assets/javascripts/player/vt.js.coffee

@@ -264,8 +264,12 @@ class AsciiIo.VT
         @underline = false
       else if n is 1
         @bright = true
+      else if n is 3
+        @italic = true
       else if n is 4
         @underline = true
+      else if n is 23
+        @italic = false
       else if n is 24
         @underline = false
       else if n >= 30 and n <= 37
@@ -290,6 +294,7 @@ class AsciiIo.VT
     props.bg = @bg if @bg
     props.bright = true if @bright
     props.underline = true if @underline
+    props.italic = true if @italic
 
     @setBrush AsciiIo.Brush.create(props)
 
@@ -641,6 +646,7 @@ class AsciiIo.VT
     @fg = @bg = undefined
     @bright = false
     @underline = false
+    @italic = false
 
     @updateScreen()
 

app/assets/stylesheets/asciicasts.css.scss

@@ -63,6 +63,7 @@
 
   .bright { font-weight: bold }
   .underline { text-decoration: underline }
+  .italic { font-style: italic }
 
   /* Foregrounds: */