numerization.rb in coderay-0.9.1

- old
+ new

@@ -30,13 +30,23 @@
         #unless allowed_wrappings == :all or allowed_wrappings.include? options[:wrap]
         #  raise ArgumentError, "Can't numerize, :wrap must be in %p, but is %p" % [NUMERIZABLE_WRAPPINGS, options[:wrap]]
         #end
 
         bold_every = options[:bold_every]
+        highlight_lines = options[:highlight_lines]
         bolding =
-          if bold_every == false
+          if bold_every == false && highlight_lines == nil
             proc { |line| line.to_s }
+          elsif highlight_lines.is_a? Enumerable
+            highlight_lines = highlight_lines.to_set
+            proc do |line|
+              if highlight_lines.include? line
+                "<strong class=\"highlighted\">#{line}</strong>"  # highlighted line numbers in bold
+              else
+                line.to_s
+              end
+            end
           elsif bold_every.is_a? Integer
             raise ArgumentError, ":bolding can't be 0." if bold_every == 0
             proc do |line|
               if line % bold_every == 0
                 "<strong>#{line}</strong>"  # every bold_every-th number in bold
@@ -63,10 +73,9 @@
         when :table
           # This is really ugly.
           # Because even monospace fonts seem to have different heights when bold,
           # I make the newline bold, both in the code and the line numbers.
           # FIXME Still not working perfect for Mr. Internet Exploder
-          # FIXME Firefox struggles with very long codes (> 200 lines)
           line_numbers = (start ... start + line_count).to_a.map(&bolding).join("\n")
           line_numbers << "\n"  # also for Mr. MS Internet Exploder :-/
           line_numbers.gsub!(/\n/) { "<tt>\n</tt>" }
 
           line_numbers_table_tpl = TABLE.apply('LINE_NUMBERS', line_numbers)