TracWiki vs. Confluence vs. MediaWiki vs. XWiki

CamelCase
[wiki:ISO9000]
[wiki:TitleIndex Title Index]

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

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

XWiki supports 16+ input syntaxes (e.g. confluence, twiki, docbook, mediawiki, xwiki, markdown, etc), see http://rendering.xwiki.org/xwiki/bin/view/Main/WebHome#HSupportedSyntaxes for details.

The syntax documented below is XWiki Syntax 2.1 (http://platform.xwiki.org/xwiki/bin/view/Main/XWikiSyntax).

[[wiki syntax here>>Space.Page]]
[[Space.Page]]
(Space is optional and is the current space if not specified)

[http://www.edgewall.com/ Edgewall Software]

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

[http://example.org The title]

[[wiki syntax here>>http://www.xwiki.com]]
http://www.xwiki.com

= Level 1 =
== Level 2 ==
=== Level 3 ===
=== Explicit id === #using-explicit-id-in-heading

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

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

= Headline
== Subheadline
=== Sub-subheadline
==== etc..

'''bold'''

*bold*

'''bold'''

**bold**

''italic''

_italics_

''italic''

//Italics//

__underline__

+underline+

<u>underlined</u>

__underline__

{{{monospace}}}
`monospace`

{{monospace}}

<tt>monospace</tt>

##monospace##

~~strike-through~~

-strikethrough-

<s>strikethrough</s>

--Strike--

^superscript^

^superscript^

<sup>superscript</sup>

^^superscript^^

,,subscript,,

~subscript~

<sub>subscript</sub>

,,subscript,,

[[Image(photo.jpg)]]                           # simplest
[[Image(photo.jpg, 120px)]]                    # with size
[[Image(photo.jpg, right)]]                    # aligned by keyword
[[Image(photo.jpg, nolink)]]                   # without link

[[Image:wiki.png]]

image:img.png
image:Space.Page@img.png
[[image:img.png||width="25" height="25"]]
image:http://some/url/img.png

Starting with the xwiki/2.1 syntax, also:
image:icon:cancel

<center>Centered</center>

(% style="... css here..." %)Text

: indented line

Non-semantic text indentation through styling:

(% style="... css here..." %)multi line text

Quotes:

> This is a quoted text

* Item 1
* Item 1.1
* Item 1

* one
** one-two
* two
* three

* Item 1
** Item 1.2
* Item 2

* List
** list
*** list

1. Item 1
1. Item 1.1
1. Item 1

# one
## one-two
# two
# three

# Item 1
## Item 1.2
# Item 2

1. Item 1
11. Item 2
111. Item 3
1. Item 4

term::
definition

; term : definition

; term
: definition

----

----

----

----