New TagParser

lib/music.rb

@@ -5,11 +5,11 @@ require 'active_record'
 # Music Object
 #
 # Its attribut are :
-#  * title
-#  * author
-#  * url
-#  * sender
-#  * file
-#  * created_ad
+# * title
+# * author
+# * url
+# * sender
+# * file
+# * created_ad
 class Music < ActiveRecord::Base
 end

lib/tag.rb

@@ -5,7 +5,7 @@ require 'active_record'
 # Tag Object
 #
 # Its attribute are :
-#  * video
-#  * tage
+# * video
+# * tage
 class Tag < ActiveRecord::Base
 end

lib/tag_parser.rb

+# Parse a text and extract tags.
+#
+# A tag starts with a "#" and can contains the following characters : [a-zA-Z0-9_-].
+class TagParser
+    # Parse a text and extract tags.
+    #
+    # * *Args*:
+    #   - +text+: the text to parse
+    #
+    # * *Returns*:
+    #   - an array containing the tags
+    def self.parse! (text)
+        tags = []
+
+        text.gsub(/(#[a-zA-Z0-9_-]*)/).each do |tag|
+            tags << tag
+        end
+
+        return tags
+    end
+end

spec/tag_parser_spec.rb

+require_relative '../lib/tag_parser.rb'
+
+describe TagParser do
+    describe :parse! do
+        it 'return tags in a text given' do
+            tags = TagParser.parse! "hey #i contain #two tags !"
+            tags.should == ["#i", "#two"]
+        end
+    end
+end