Indented code blocks

In a paragraph. Still in a paragraph.

In a code block.

Back in a paragraph.

   Code block line 1.
Code block line 2.
       Code block line 3.

Paragraph.

Code block with no trailing blank lines.

Paragraph.

Code blocks separated by comment

First code block.

Second code block.
[/ Comment in second code block]
Still second code block.
[/ Comment trailing second code block]