[/
    Copyright 2002,2004,2006 Joel de Guzman, Eric Niebler
    Copyright 2010-2011 Daniel James

    Distributed under the Boost Software License, Version 1.0.
    (See accompanying file LICENSE_1_0.txt or copy at
    http://www.boost.org/LICENSE_1_0.txt)
]

[chapter Syntax Summary
    [quickbook 1.6]
    [compatibility-mode 1.5]
    [id quickbook.syntax]
    [source-mode teletype]
]

A QuickBook document is composed of one or more blocks. An example of
a block is the paragraph or a C++ code snippet. Some blocks have
special mark-ups. Blocks, except code snippets which have their own
grammar (C++ or Python), are composed of one or more phrases. A phrase
can be a simple contiguous run of characters. Phrases can have special
mark-ups. Marked up phrases can recursively contain other phrases, but
cannot contain blocks. A terminal is a self contained block-level or
phrase-level element that does not nest anything.

Blocks, in general, are delimited by two end-of-lines (the block terminator).
Phrases in each block cannot contain a block terminator. This way, syntax errors
such as un-matched closing brackets do not go haywire and corrupt anything past
a single block.

[#quickbook.ref.comments]
[section:comments Comments]

Can be placed anywhere.

```
[/ comment (no output generated) ]
```

[/ for testing only... ]

```
[/ comments can be nested [/ some more here] ]
```

[/ for testing [/ only ] ]

```
[/ Quickbook blocks can nest inside comments. [*Comment this out too!] ]
```

[/ for testing [*only ] ]

[endsect] [/comments]