TiddlyWiki vs. DokuWiki vs. PmWiki vs. KeheiWiki vs. PhpWiki

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

[[a Link]]
[[namespace:link]]
[[link|With a Title]]

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

%topic%  ( '%' configurable )
or
<link topic>text</link>
or
use HTML in rich text editor

WikiWord or [somelink]
[ desc | pagename ]

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

[[http://example.com]]
[[http://example.com|With a Title]]

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

http://gmail.com/
or
<extern http://gmail.com>a mail server</extern>
or
use HTML in rich text editor

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

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

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

! Level 1
!!#anchor Level 2
!!! Level 3

text  ----    
or
insert HTML via WYSIWYG editor

!!!Headline1
!!Headline2
!Headline3

''bold''

**bold**

'''bold'''

_ text _ 
or
insert HTML via WYSIWYG editor

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

//italic//

//italics//

''italic''

* text *
or
insert HTML via WYSIWYG editor

_italics_ or 
or
<em>italics</em>

__underline__

__underlined__

{+underlined+}

insert HTML via WYSIWYG editor

<u>underlined</u>

{{{monospaced}}}

''monospace''

@@monospace@@

<wiki code>
stuff
</wiki code>

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

--strikethrough--

<del>strikethrough</del>

{-strikethrough-}

insert HTML via WYSIWYG editor

<strike>striked through</strike>

^^superscript^^

<sup>superscript</sup>

'^superscript^'

insert HTML via WYSIWYG editor

<sup>above</sup>

~~subscript~~

<sub>subscript</sub>

'_subscript_'

insert HTML via WYSIWYG editor

<sub>below</sub>

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

{{local.jpg}}
{{http://foo.bar/baz.jpg}}

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

insert HTML via WYSIWYG editor

[ 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

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

Plugin

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

<p align=right> stuff
or
insert HTML via WYSIWYG editor

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

:indent

> quote

<<<
blockquote
<<<

N/A

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

<ul>
stuff
</ul>
or
insert HTML via WYSIWYG editor

;: left indent
;;: more left indent

or 
paragraph
and another level 

* Item 1
** Item 1.1
* Item 2

* item 1
* item 1.1
* item 2

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

* text
or
<!> text
or
insert HTML via WYSIWYG editor

* list
or
- list

# Item 1
## Item 1.1
# Item 2

- item 1
- item 1.1
- item 2

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

digits. stuff
or
insert HTML via WYSIWYG editor

# list

; term
: description

Plugin

: term : definition

term:    definition
or
insert HTML via WYSIWYG editor

Term:<def>
def

----

----

----

can use plain < HR > tag or
via WYSIWYG editor

----