TiddlyWiki vs. MediaWiki vs. XWiki vs. PmWiki

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

[[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)

[[page name]]
[[page name | link text]]
[[link text -> page name]]
[[#anchor]]
[[#anchor|link to anchor]]
[[page name #anchor]]

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

[http://example.org The title]

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

http://....
[[http://... | link text]]
[[link text -> http://...]]

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

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

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

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

''bold''

'''bold'''

**bold**

'''bold'''

//italic//

''italic''

//Italics//

''italic''

__underline__

<u>underlined</u>

__underline__

{+underlined+}

{{{monospaced}}}

<tt>monospace</tt>

##monospace##

@@monospace@@

--strikethrough--

<s>strikethrough</s>

--Strike--

{-strikethrough-}

^^superscript^^

<sup>superscript</sup>

^^superscript^^

'^superscript^'

~~subscript~~

<sub>subscript</sub>

,,subscript,,

'_subscript_'

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

[[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

https://foo.bar/foo.jpg
Attach:foo.jpg
Attach:foo.jpg"alt/title text" | Caption

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

<center>Centered</center>

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

%center% centered text
%right% right aligned
%lfloat% left floating text
%rfloat% right floating text
%rframe% right floating frame
%lframe% left floating frame

:indent

> quote

<<<
blockquote
<<<

: indented line

Non-semantic text indentation through styling:

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

Quotes:

> This is a quoted text

-> indented text
--> more indentation
-< hanging text
--< more indentation

* Item 1
** Item 1.1
* Item 2

* Item 1
** Item 1.2
* Item 2

* List
** list
*** list

* Item 1
** Item 1.1
* Item 2
alternatively, indented:
* item 1
* item 1.1
* item 2

# Item 1
## Item 1.1
# Item 2

# Item 1
## Item 1.2
# Item 2

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

# Item 1
## Item 1.1
# Item 2
alternatively, indented:
# Item 1
# Item 1.1
# Item 2

; term
: description

; term : definition

; term
: definition

: term : definition

----

----

----

----