Wikia vs. DokuWiki vs. MediaWiki vs. Confluence vs. Oddmuse

[[a Link]]
[[namespace:link]]
[[link|With a Title]]

[[a link]]
[[a link|with title]]

[Page Title]
[Link Title|Page Title#anchor]
[~username]
[^attachment.doc]

optional, default on:
[[page name]]

optional, default off:
PageName
[PageName] → [1]
[[[page name]]] → [1]
[PageName text] → text
[[page name|text]] → text

Depending on plugins:
[text](page) → text

[[http://example.com]]
[[http://example.com|With a Title]]

[http://example.org The title]

[http://www.example.com]
[Link Title|http://www.example.com]
[Shortcut Link|PageName@otherwiki]

http://example.com/
[http://example.com/] → [1]

optional, default on:
[http://example.com/ text] → text

Depending on plugins:
[text](http://example.com/) → text

====== Level 1 ======
===== Level 2 =====
==== Level 3 ====
=== Level 4 ===
== Level 5 ==

==Section==
===Subsection===
====Sub-subsection====

h1. Top Level Heading
h2. Smaller Heading
h6. Smallest Heading

Depending on plugins:
## two
### three
== two ==
=== three ==

section
=======

subsection
----------

**bold**

'''bold'''

*bold*

Depending on plugins:
*bold*
**bold*
'''bold'''

//italics//

''italic''

_italics_

Depending on plugins:
*italic*
/italic/
//italic//
''italic''

__underlined__

<u>underlined</u>

+underline+

Depending on plugins:
_underline_
__underline__

''monospace''

<tt>monospace</tt>

{{monospace}}

Depending on plugins:
`mono`
##mono##
[code]mono[/code]
<tt>mono</tt>
<code>mono</code>

<del>strikethrough</del>

<s>strikethrough</s>

-strikethrough-

via bbCode plugin:
[s]strike through[/s]

<sup>superscript</sup>

<sup>superscript</sup>

^superscript^

via bbCode plugin:
[sup]superscript[/sup]

<sub>subscript</sub>

<sub>subscript</sub>

~subscript~

via bbCode plugin:
[sub]subscript[/sub]

{{local.jpg}}
{{http://foo.bar/baz.jpg}}

[[Image:wiki.png]]

http://example.com/pic.jpg

Depending on plugins:
[[image:Name|Text|URL]] and variants
![text](URL)

Plugin

<center>Centered</center>

no example known

N/A

: indented line

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

* item 1
* item 1.1
* item 2

* Item 1
** Item 1.2
* Item 2

* one
** one-two
* two
* three

* one
** two

- item 1
- item 1.1
- item 2

# Item 1
## Item 1.2
# Item 2

# one
## one-two
# two
# three

Depending on plugins:
1. one
2. two

# one
## two

Plugin

; term : definition

Depending on plugins:
; term: definition

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Depending on plugins:
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