Oddmuse vs. TWiki vs. WackoWiki vs. XWiki

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

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

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

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

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

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

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

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

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

section
=======

subsection
----------

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

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

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

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

*bold*

**bold**

**bold**

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

_italic_

//italics//

//Italics//

Depending on plugins:
_underline_
__underline__

<u>underline</u>

__underline__

__underline__

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

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

##monospace##

##monospace##

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

<strike>strikethrough</strike>

--strikethrough--

--Strike--

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

<sup>superscript</sup>

^^superscript^^

^^superscript^^

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

<sub>subscript</sub>

,,subscript,,

,,subscript,,

http://example.com/pic.jpg

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

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

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

no example known

| left |   center   |   right |
or HTML
or CSS

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

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

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

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

<blockquote>
multi line text
</blockquote>

one
two

Non-semantic text indentation through styling:

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

Quotes:

> This is a quoted text

* one
** two

* Item 1
* Item 1.1
* Item 2

*one
**One-two
*two
*three

* List
** list
*** list

Depending on plugins:
1. one
2. two

# one
## two

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

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

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

Depending on plugins:
; term: definition

$ Term: Definition

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

; term
: definition

Depending on plugins:
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