GWiki vs. JSPWiki vs. Oddmuse vs. PhpWiki vs. TiddlyWiki vs. TWiki

[path/Page]
[My Title|path/Page]

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

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 or [somelink]
[ desc | pagename ]

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

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

[http://example.com]

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

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

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

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

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

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

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

h1. Heading 1
h2. Heading 2

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

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

section
=======

subsection
----------

!!!Headline1
!!Headline2
!Headline3

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

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

*Bold Format*

__bold__

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

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

''bold''

*bold*

_Italic format_

''italics''

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

_italics_ or 
or
<em>italics</em>

//italic//

_italic_

+Unterlined+

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

Depending on plugins:
_underline_
__underline__

<u>underlined</u>

__underline__

<u>underline</u>

{{Monospace}}

{{monospace}}

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

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

{{{monospaced}}}

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

-StrikeThrough-

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

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

<strike>striked through</strike>

--strikethrough--

<strike>strikethrough</strike>

^Superscript^

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

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

<sup>above</sup>

^^superscript^^

<sup>superscript</sup>

~Subscript~

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

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

<sub>below</sub>

~~subscript~~

<sub>subscript</sub>

!path/SkinSampleGWiki.png!

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

http://example.com/pic.jpg

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

[ 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

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

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

{div:style=...}
Aligned Text
{div}

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

no example known

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

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

| left |   center   |   right |
or HTML
or CSS

{div:style=...}
Aligned Text
{div}

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

Depending on plugins:
> text

[quote]
text
[/quote]

: one
:: two

;: left indent
;;: more left indent

or 
paragraph
and another level 

:indent

> quote

<<<
blockquote
<<<

<blockquote>
multi line text
</blockquote>

- Item 1
- Item 2
-- Sub Item

* Item 1
** Item 1.1
* Item 2

* one
** two

* list
or
- list

* Item 1
** Item 1.1
* Item 2

* Item 1
* Item 1.1
* Item 2

# Item 1
# Item 2
## Sub Item

# Item 1
## Item 1.1
# Item 2

Depending on plugins:
1. one
2. two

# one
## two

# list

# Item 1
## Item 1.1
# Item 2

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

* Item 1
* Item 2
** Sub Item

;term:definition

Depending on plugins:
; term: definition

Term:<def>
def

; term
: description

$ Term: Definition

----

----

Depending on plugins:
----

----

----

---