XWiki vs. PhpWiki vs. Zwiki vs. TWiki vs. JSPWiki

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)

WikiWord or [somelink]
[ desc | pagename ]

WikiName
[freeform name]
[[double-bracketed]]

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

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

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

http://someserver/someurl
[ desc | exturl ]

Bare urls plus markup-specific 
link syntax. This and all 
following syntax examples depend 
on which markup mode is used for 
a page, including:

restructured text, structured 
text, wikiwikiweb, moinmoin, 
html, plaintext..

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

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

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

!!!Headline1
!!Headline2
!Headline3

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

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

**bold**

*bold* or
<strong>bold</strong>

*bold*

__bold__

//Italics//

_italics_ or 
or
<em>italics</em>

_italic_

''italics''

__underline__

<u>underlined</u>

<u>underline</u>

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

##monospace##

<tt>monospace</tt>
<code>code</code>
<pre>preformatted</pre>
<verbatim>
unparsed text</verbatim>

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

{{monospace}}

--Strike--

<strike>striked through</strike>

<strike>strikethrough</strike>

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

^^superscript^^

<sup>above</sup>

<sup>superscript</sup>

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

,,subscript,,

<sub>below</sub>

<sub>subscript</sub>

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

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

[ http://foo.org/1.jpg size=30%] 
external image
[Upload:view.jpg align=right size=50x40] 
view uploaded image
[Upload:view.jpg | http://server/external-linkjpg ] 
view and link to another image

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

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

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

<?plugin RawHtml <span align="right"> ?>right<?plugin RawHtml </span> ?>
or <div align="right"> right </div>

| left |   center   |   right |
or HTML
or CSS

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

Non-semantic text indentation through styling:

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

Quotes:

> This is a quoted text

;: left indent
;;: more left indent

or 
paragraph
and another level 

<blockquote>
multi line text
</blockquote>

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

* List
** list
*** list

* list
or
- list

* Item 1
* Item 1.1
* Item 2

* Item 1
** Item 1.1
* Item 2

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

# list

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

# Item 1
## Item 1.1
# Item 2

; term
: definition

Term:<def>
def

$ Term: Definition

;term:definition

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