lib/kramdown/parser/kramdown/math.rb in kramdown-0.13.4 vs lib/kramdown/parser/kramdown/math.rb in kramdown-0.13.5

@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 #
 #--
-# Copyright (C) 2009-2010 Thomas Leitner <[e-mail]>
+# Copyright (C) 2009-2012 Thomas Leitner <[e-mail]>
 #
 # This file is part of kramdown.
 #
 # kramdown is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,19 +24,20 @@
 
 module Kramdown
   module Parser
     class Kramdown
 
-      BLOCK_MATH_START = /^#{OPT_SPACE}(\\)?\$\$(.*?)\$\$\s*?\n/m
+      BLOCK_MATH_START = /^#{OPT_SPACE}(\\)?\$\$(.*?)\$\$(\s*?\n)?/m
 
       # Parse the math block at the current location.
       def parse_block_math
         if !after_block_boundary?
           return false
         elsif @src[1]
-          @src.scan(/^#{OPT_SPACE}\\/)
+          @src.scan(/^#{OPT_SPACE}\\/) if @src[3]
           return false
         end
+
         orig_pos = @src.pos
         @src.pos += @src.matched_size
         data = @src[2]
         if before_block_boundary?
           @tree.children << new_block_el(:math, data, nil, :category => :block)