From 0a09075b6fdf94bfcca5ded58dd685682a2ae9d4 Mon Sep 17 00:00:00 2001
From: Marcin Kulik <marcin.kulik@gmail.com>
Date: Tue, 29 Nov 2011 00:28:26 +0100
Subject: [PATCH] Underline SGR code support

---
 app/assets/javascripts/terminal.js.coffee  | 11 ++++++++++-
 app/assets/stylesheets/asciicasts.css.scss |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/app/assets/javascripts/terminal.js.coffee b/app/assets/javascripts/terminal.js.coffee
index be11111..96e4864 100644
--- a/app/assets/javascripts/terminal.js.coffee
+++ b/app/assets/javascripts/terminal.js.coffee
@@ -10,6 +10,7 @@ class AsciiIo.Terminal
     @lineData = @normalBuffer
     @dirtyLines = []
     @fg = @bg = undefined
+    @underline = false
 
     @createChildElements()
     @showCursor true
@@ -104,8 +105,13 @@ class AsciiIo.Terminal
       if n is 0
         @fg = @bg = undefined
         @bright = false
+        @underline = false
       else if n is 1
         @bright = true
+      else if n is 4
+        @underline = true
+      else if n is 24
+        @underline = false
       else if n >= 30 and n <= 37
         @fg = n - 30
       else if n >= 40 and n <= 47
@@ -274,7 +280,7 @@ class AsciiIo.Terminal
     prefix = ""
     postfix = ""
 
-    if @fg isnt undefined or @bg isnt undefined or @bright
+    if @fg isnt undefined or @bg isnt undefined or @bright or @underline
       prefix = "<span class=\""
       brightOffset = (if @bright then 8 else 0)
 
@@ -283,6 +289,9 @@ class AsciiIo.Terminal
       else if @bright
         prefix += " bright"
 
+      if @underline
+        prefix += " underline"
+
       prefix += " bg" + @bg if @bg isnt undefined
       prefix += "\">"
       postfix = "</span>"
diff --git a/app/assets/stylesheets/asciicasts.css.scss b/app/assets/stylesheets/asciicasts.css.scss
index 77c2736..5bba636 100644
--- a/app/assets/stylesheets/asciicasts.css.scss
+++ b/app/assets/stylesheets/asciicasts.css.scss
@@ -57,6 +57,7 @@
 }
 
 .bright { font-weight: bold }
+.underline { text-decoration: underline }
 
 /* Foregrounds: */