DokuWiki vs. MediaWiki vs. Oddmuse vs. PhpWiki

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

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

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

WikiWord or [somelink]
[ desc | pagename ]

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

[http://example.org The title]

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

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

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

http://someserver/someurl
[ desc | exturl ]

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

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

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

section
=======

subsection
----------

!!!Headline1
!!Headline2
!Headline3

**bold**

'''bold'''

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

*bold* or
<strong>bold</strong>

//italics//

''italic''

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

_italics_ or 
or
<em>italics</em>

__underlined__

<u>underlined</u>

Depending on plugins:
_underline_
__underline__

<u>underlined</u>

''monospace''

<tt>monospace</tt>

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

<tt>monospace</tt>
<code>code</code>
<pre>preformatted</pre>
<verbatim>
unparsed text</verbatim>

<del>strikethrough</del>

<s>strikethrough</s>

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

<strike>striked through</strike>

<sup>superscript</sup>

<sup>superscript</sup>

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

<sup>above</sup>

<sub>subscript</sub>

<sub>subscript</sub>

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

<sub>below</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)

[ http://foo.org/1.jpg size=30%] 
external image
[Upload:view.jpg align=right size=50x40] 
view uploaded image
[Upload:view.jpg | http://server/external-linkjpg ] 
view and link to another image

Plugin

<center>Centered</center>

no example known

<?plugin RawHtml <span align="right"> ?>right<?plugin RawHtml </span> ?>
or <div align="right"> right </div>

N/A

: indented line

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

;: left indent
;;: more left indent

or 
paragraph
and another level 

* item 1
* item 1.1
* item 2

* Item 1
** Item 1.2
* Item 2

* one
** two

* list
or
- list

- item 1
- item 1.1
- item 2

# Item 1
## Item 1.2
# Item 2

Depending on plugins:
1. one
2. two

# one
## two

# list

Plugin

; term : definition

Depending on plugins:
; term: definition

Term:<def>
def

----

----

Depending on plugins:
----

----