## Preformatting

To include a preformatted, never-to-be-fiddled-with text (e.g. a code block) finish the prior paragraph with "::". The preformatted block finishes when the text falls back to the same indentation level as a paragraph prior to the preformatted block.

An example:

```  Whitespace, newlines, blank lines, and all kinds of markup
(like *this* or \this) is preserved by literal blocks.
Lookie here, I've dropped the indentation level
(but not far enough)
```

no more example

If a paragraph consists of only of "::", then it's removed from the output:

```::

This is preformatted text, and the
last "::" paragraph is removed
```
```This is preformatted text, and the
last "::" paragraph is removed
```

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