MediaWiki vs. TiddlyWiki vs. JSPWiki vs. Oddmuse

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

WikiWord (CamelCase)
[[link]]
[[label|link]]

[link]
[text|link]
[text|wiki:link]

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.org The title]

http://www.example.com
[[label|http://www.example.com]]

[http://www.example.com/]
[example|http://www.example.com/]
[text|wiki:link]

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

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

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

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

! Level 1
!! Level 2
!!! Level 3
!!!! Level 4
!!!!! Level 5

! Level 1
!! Level 2
!!! Level 3

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

section
=======

subsection
----------

'''bold'''

''bold''

__bold__

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

''italic''

//italic//

''italics''

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

<u>underlined</u>

__underline__

%%(text-decoration: underline) text %%

Depending on plugins:
_underline_
__underline__

<tt>monospace</tt>

{{{monospaced}}}

{{monospace}}

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

<s>strikethrough</s>

--strikethrough--

%%(text-decoration: line-through) deleted text %%

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

<sup>superscript</sup>

^^superscript^^

%%(vertical-align: sup) text %%

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

<sub>subscript</sub>

~~subscript~~

%%(vertical-align: sub) text %%

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

[[Image:wiki.png]]

[img[local.jpg]]
[img[http://foo.bar/foo.jpg]]

[local.jpg]
[{Image src='local.jpg'}]
[{Image src='http://foo.bar/foo.jpg'}]

http://example.com/pic.jpg

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

<center>Centered</center>

using custom classes, e.g.
{{right{
text
}}}

%%(text-align: right) text %%

no example known

: indented line

:indent

> quote

<<<
blockquote
<<<

%%(text-indent: 20px) 20 pixels %%
%%(text-indent: 30%) 30 percent %%

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

* Item 1
** Item 1.2
* Item 2

* Item 1
** Item 1.1
* Item 2

* Item 1
** Item 1.1
* Item 2

* one
** two

# Item 1
## Item 1.2
# Item 2

# Item 1
## Item 1.1
# Item 2

# Item 1
## Item 1.1
# Item 2

Depending on plugins:
1. one
2. two

# one
## two

; term : definition

; term
: description

;term:definition

Depending on plugins:
; term: definition

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Depending on plugins:
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