MediaWiki vs. XWiki vs. WackoWiki vs. Confluence

[[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)

[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase

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

[http://example.org The title]

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

https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]

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

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

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

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

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

'''bold'''

**bold**

**bold**

*bold*

''italic''

//Italics//

//italics//

_italics_

<u>underlined</u>

__underline__

__underline__

+underline+

<tt>monospace</tt>

##monospace##

##monospace##

{{monospace}}

<s>strikethrough</s>

--Strike--

--strikethrough--

-strikethrough-

<sup>superscript</sup>

^^superscript^^

^^superscript^^

^superscript^

<sub>subscript</sub>

,,subscript,,

vvsubscriptvv

~subscript~

[[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

((image.png))
file:image.png
https://example.com/image.png

<center>Centered</center>

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

{html}<div align="right">{html}

%%(wacko wrapper="text" wrapper_align="center")
content%%

: indented line

Non-semantic text indentation through styling:

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

Quotes:

> This is a quoted text

one
two

* Item 1
** Item 1.2
* Item 2

* List
** list
*** list

*one
**One-two
*two
*three

* one
** one-two
* two
* three

# Item 1
## Item 1.2
# Item 2

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

1. numbered List
1. numbered List-2
2.#8 numbered List, with break

# one
## one-two
# two
# three

; term : definition

; term
: definition

{html}<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>{html}

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