From 1b93da3262de157e7a1339b1b4ce3ff5c22081a5 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sun, 20 Mar 2005 15:03:32 +0000
Subject: Added TextHelper#simple_format as a non-dependency text presentation
 helper.Fixed TextHelper#markdown to use blank? instead of empty? so it can
 deal with nil strings passed #814 [Johan Sorensen]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@933 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/lib/action_view/helpers/text_helper.rb | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'actionpack/lib/action_view')

diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb
index b97b1e130a..aa4d3ab8af 100644
--- a/actionpack/lib/action_view/helpers/text_helper.rb
+++ b/actionpack/lib/action_view/helpers/text_helper.rb
@@ -90,11 +90,24 @@ module ActionView
         # Returns the text with all the Markdown codes turned into HTML-tags.
         # <i>This method is only available if BlueCloth can be required</i>.
         def markdown(text)
-          text.empty? ? "" : BlueCloth.new(text).to_html
+          text.blank? ? "" : BlueCloth.new(text).to_html
         end
       rescue LoadError
         # We can't really help what's not there
       end
+      
+      # Returns +text+ transformed into html using very simple formatting rules
+      # Surrounds paragraphs with <tt>&lt;p&gt;</tt> tags, and converts line breaks into <tt>&lt;br /&gt;</tt>
+      # Two consecutive newlines(<tt>\n\n</tt>) are considered as a paragraph, one newline (<tt>\n</tt>) is
+      # considered a linebreak, three or more consecutive newlines are turned into two newlines 
+      def simple_format(text)
+        text.gsub!(/(\r\n|\n|\r)/, "\n") # lets make them newlines crossplatform
+        text.gsub!(/\n\n+/, "\n\n") # zap dupes
+        text.gsub!(/\n\n/, '</p>\0<p>') # turn two newlines into paragraph
+        text.gsub!(/([^\n])(\n)([^\n])/, '\1\2<br />\3') # turn single newline into <br />
+        
+        return '<p>' + text + '</p>' # wrap the first and last line in paragraphs before we're done
+      end
 
       # Turns all urls and email addresses into clickable links. The +link+ parameter can limit what should be linked.
       # Options are :all (default), :email_addresses, and :urls.
-- 
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