lib/reveal-ck/markdown/pre_processor.rb in reveal-ck-0.6.0 vs lib/reveal-ck/markdown/pre_processor.rb in reveal-ck-0.6.1

@@ -9,10 +9,11 @@
         @doc = doc
       end
 
       def process
         strip_whitespace
+        protect_emojis
         add_first_slide_divider_if_needed
         add_last_slide_vertical_if_needed
         add_last_slide_divider_if_needed
         transform_slide_dividers_to_divider_symbols
         transform_slide_verticals_to_vertical_symbols
@@ -23,10 +24,16 @@
 
       def strip_whitespace
         @doc = doc.strip
       end
 
+      def protect_emojis
+        @doc = doc.gsub(emoji_regex) do |emoji|
+          emoji.gsub(/_/, emoji_underscore_symbol)
+        end
+      end
+
       def add_first_slide_divider_if_needed
         return if doc.start_with?(slide_divider)
         return if doc.start_with?(slide_vertical)
         prepend(slide_divider)
       end
@@ -58,10 +65,14 @@
       def add_last_slide_vertical_if_needed
         return unless doc.scan(slide_vertical_regex).size.odd?
         append(slide_vertical)
       end
 
+      def emoji_regex
+        /:[a-z\d_\-\+]*:/
+      end
+
       def slide_divider
         '---'
       end
 
       def slide_divider_regex
@@ -84,9 +95,13 @@
         @doc = "#{doc}\n#{s}"
       end
 
       def newline_wrapped(s)
         "\n#{s}\n"
+      end
+
+      def emoji_underscore_symbol
+        RevealCK::Markdown::REVEALCK_SYMBOL_FOR_EMOJI_UNDERSCORE
       end
 
       def divider_symbol
         RevealCK::Markdown::REVEALCK_SYMBOL_FOR_DIVIDER
       end