ProWiki vs. TWiki vs. Oddmuse vs. DokuWiki

CamelCase
Wordlinking
{{free link}}
[page labelforlink]

WikiWord autolink
Otherweb.WikiWord
[[Spaced text]]
[[WikiWord][label]]

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

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

http://example.org
InterWiki:page
[some:link labelforlink]

http://twiki.org/ autolink
[[http://twiki.org/][label]]

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

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

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

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

= Headline 1 =
== Headline 2 =
=== Headline 3 =
==== Headline 4 =
===== Headline 5 =
====== Headline 6 =

---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6

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

section
=======

subsection
----------

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

'''bold'''

*bold*

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

**bold**

''italic''

_italic_

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

//italics//

<u>underlined</u>

<u>underline</u>

Depending on plugins:
_underline_
__underline__

__underlined__

<tt>monospace</tt>

=monospaced text= and
<verbatim>
multi line text
</verbatim>

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

''monospace''

[[strike]strikethrough text]

<strike>strikethrough</strike>

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

<del>strikethrough</del>

<sup>text</sup>

<sup>superscript</sup>

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

<sup>superscript</sup>

<sub>text</sub>

<sub>subscript</sub>

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

<sub>subscript</sub>

http://example.org/file.jpg
Upload:file.gif
[[Image]...options...]

%ATTACHURL%/image.png
http://any.domain/image.png

http://example.com/pic.jpg

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

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

only as part of tables or citations
[align:left|center|right]

| left |   center   |   right |
or HTML
or CSS

no example known

Plugin

: indented line
:: indented line

<blockquote>
multi line text
</blockquote>

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

N/A

* bulleted list
** bulleted list

* Item 1
* Item 1.1
* Item 2

* one
** two

* item 1
* item 1.1
* item 2

# numbered list
## numbered list

1. Item 1
a. Item 1.a
1. Item 2

Depending on plugins:
1. one
2. two

# one
## two

- item 1
- item 1.1
- item 2

; term: definition

$ Term: Definition

Depending on plugins:
; term: definition

Plugin

----

---

Depending on plugins:
----

----