             .  .
                           ....
</pre>
<p>Two ASCII blobs.</p>
<h1><span class="heading-number heading-number-1">2</span> BEGIN_SRC</h1>
<p>And this:</p>
<pre class="src" lang="ruby">
# Finds all emphasis matches in a string.
# Supply a block that will get the marker and body as parameters.
def match_all(str)
  str.scan(@org_emphasis_regexp) do |match|
    yield $2, $3
  end
end
</pre>
<p>Now let&#8217;s test case-insensitive code blocks.</p>
<pre class="src" lang="ruby">
# Finds all empha