User:Marcus/MediaWiki Quick Reference: Difference between revisions

Revision as of 13:15, 28 February 2011

This is a single-page reference guide for Nottinghack Wiki. If you are not familiar with wikitext and markup languages, see the tutorial on Using the Wiki.

About this Wiki

Nottinghack Wiki is powered by MediaWiki, the software used by Wikipedia. The main sources of documentation are:

This reference guide was based on the public domain Project:PD help.

Formatting

Basic Markup

Description	You type	You get
Italic text	two aprostrophes for ''italic'' text	two aprostrophes for italic text
Bold text	three aprostrophes for '''bold''' text	three aprostrophes for bold text
Bold and italic	five aprostrophes for '''''bold & italic''''' text	five aprostrophes for bold & italic text
Escape wiki markup	<nowiki>no '''''markup'''''</nowiki>	no '''''markup'''''

Some HTML tags are allowed by MediaWiki (full list).

Description	You type	You get
Underline	<u>Underline</u>	Underline
Strikethrough	<del>Strikethrough</del> or <s>Strikethrough</s>	~~Strikethrough~~ or ~~Strikethrough~~
Monospaced text	<code>Source code</code> or <tt>Teletype text</tt>	`Source code` or `Teletype text`
Superscript	C<sup>2</sup>	C²
Subscript	C<sub>2</sub>	C₂
Size adjustments	<big>Larger text</big> <small>Smaller text</small> <small>Small text with <big>larger text</big> inside</small> <small><small>Really small text</small></small>	Larger text Smaller text Small text with larger text inside Really small text
Code	<code>code sample</code>	`code sample`
Old-school font styling Note: This is deprecated, so use CSS styling instead.	<font color="green" size="4" face="serif">Big Green Serifs</font>	Big Green Serifs
CSS styling	<span style="color:green; font-size:large; font-family:serif">Big Green Serifs</span>	Big Green Serifs
Abbreviation	<abbr title="World Taekwondo Federation">WTF</abbr>	WTF
Cite an author Note: This is often used with a blockquote, shown in #Other section formatting.	<cite>John Doe</cite>	John Doe
Highlight text that has been inserted into a document.	This text <ins>has</ins> been corrected.	This text has been corrected.
Refer to a variable in a computer program	The variable <var>foo</var> has not been initialised.	The variable `foo` has not been initialised.

Formatting Pitfalls

Beware the unexpected results shown below.

Description	You type	You get
Overlapping HTML is invalid Note: Results will vary between browsers.	Avoid <b>overlapping <i>html</b> tags</i>.	[invalid HTML output]
Multiline HTML formatting	Avoid <b>multiline html</b> formatting tags.	[invalid HTML output]
Wiki markup spanning paragraphs	Avoid '''''multiline wiki''''' markup.	Avoid *multiline* wiki markup.
Multiline wiki markup	Avoid '''''multiline wiki''''' markup.	Avoid *multiline* wiki markup.
Overlapping wiki markup Note: This is valid, but can be confusing.	Basic '''overlapping ''wiki''' markup'' works OK.	Basic overlapping wiki markup works OK.

Symbols

An HTML symbol entity is a sequence of characters that produces one particular character. For example, € produces the Euro symbol "€" and ™ produces trademark symbol "™". HTML symbol entities are allowed in MediaWiki and are sometimes used in advanced editing for two main reasons: to insert characters not normally available on keyboards and to prevent the parser from interpreting and displaying HTML tags and symbols:

&euro; → €

Green → Green

The following is a list of characters that can be produced using HTML symbols. Hover any character to find out the symbol that produces it. Some symbols not available in the current font will appear as empty squares.

HTML Symbol Entities
Á	á	Â	â	´	Æ	æ	À	à	ℵ	Α	α	&	∧	∠	Å	å	≈	Ã	ã	Ä	ä	„	Β	β	¦	•	∩	Ç	ç	¸	¢
Χ	χ	ˆ	♣	≅	©	↵	∪	¤	†	‡	↓	⇓	°	Δ	δ	♦	÷	É	é	Ê	ê	È	è	∅			Ε	ε	≡	Η	η
Ð	ð	Ë	ë	€	∃	ƒ	∀	½	¼	¾	⁄	Γ	γ	≥	>	↔	⇔	♥	…	Í	í	Î	î	¡	Ì	ì	ℑ	∞	∫	Ι	ι
¿	∈	Ï	ï	Κ	κ	Λ	λ	⟨	«	←	⇐	⌈	“	≤	⌊	∗	◊	‎	‹	‘	<	¯	—	µ	·	−	Μ	μ	∇		–
≠	∋	¬	∉	⊄	Ñ	ñ	Ν	ν	Ó	ó	Ô	ô	Œ	œ	Ò	ò	‾	Ω	ω	Ο	ο	⊕	∨	ª	º	Ø	ø	Õ	õ	⊗	Ö
ö	¶	∂	‰	⊥	Φ	φ	Π	π	ϖ	±	£	′	″	∏	∝	Ψ	ψ	"	√	⟩	»	→	⇒	⌉	”	ℜ	®	⌋	Ρ	ρ	‏
›	’	‚	Š	š	⋅	§		Σ	σ	ς	∼	♠	⊂	⊆	∑	⊃	¹	²	³	⊇	ß	Τ	τ	∴	Θ	θ	ϑ		Þ	þ	˜
×	™	Ú	ú	↑	⇑	Û	û	Ù	ù	¨	ϒ	Υ	υ	Ü	ü	℘	Ξ	ξ	Ý	ý	¥	ÿ	Ÿ	Ζ	ζ	‍	‌

Mathematical formulae

Formulae can be written in TeX using <math> tags. See wikipedia:Help:Displaying a formula for details.

Description	You type	You get
The equation of mass-energy equivalence	<math>E = mc^2 \,\!</math>	<math>E = mc^2 \,\!</math>
The convolution theorem states that...	<math> \mathcal{F}\{f * g\} = k\cdot \mathcal{F}\{f\}\cdot \mathcal{F}\{g\}</math>	<math> \mathcal{F}\{f * g\} = k\cdot \mathcal{F}\{f\}\cdot \mathcal{F}\{g\}</math>

Layout

Section formatting can only be used at the beginning of a line. Note: Spaces at the start of a line are significant.

Headings

Headings of different levels are created by surrounding the line with equal signs (=).

== Level 2 ==
=== Level 3 ===
==== Level 4 ====
===== Level 5 =====
====== Level 6 ======

Note: Level 1 is automatically generated for the page title and is not appropriate within the body of articles.

For each heading in the wiki article an HTML anchor is automatically created. That makes it possible to create #Links to section headings. An article with 4 or more headings automatically shows a table of contents.

Paragraphs

MediaWiki generally ignores single line breaks and joins consecutive lines of text together. To start a new paragraph, leave an empty line. To create a wide paragraph break, leave two empty lines. You can force a line break inside a paragraph with the HTML tag  .

Description	You type	You get
Single line breaks are ignored	This text is joined together as if it were a single line.	This text is joined together as if it were a single line.
Empty lines define paragraphs Note: Two empty lines give a larger paragraph break.	First paragraph. Second paragraph. The third paragraph will <br /> break in the middle.	First paragraph. Second paragraph. The third paragraph will break in the middle.

Other section formatting

Description	You type	You get
Bullet list	* Start each line * with an [[Wikipedia:asterisk\|asterisk]] (). * More asterisks gives deeper *** and deeper levels. * Line breaks<br />don't break levels. *** But jumping levels creates empty space. Any other new line ends the list.	Start each line with an asterisk (*). More asterisks gives deeper and deeper levels. Line breaks don't break levels. But jumping levels creates empty space. Any other new line ends the list.
Numbered list	# Start each line # with a [[Wikipedia:Number_sign\|number sign]] (#). ## More number signs gives deeper ### and deeper ### levels. # Line breaks<br />don't break levels. ### But jumping levels creates empty space. # Blank lines # end the list and start another. Any other new line also ends the list.	Start each line with a number sign (#). More number signs gives deeper and deeper levels. Line breaks don't break levels. But jumping levels creates empty space. Blank lines end the list and start another. Any other new line also ends the list.
Definition list	;item 1 : definition 1 ;item 2 : definition 2-1 : definition 2-2	item 1 definition 1 item 2 definition 2-1 definition 2-2
Mixture of different types of list	# one # two #* two point one #* two point two # three ## three sub 1 ### three sub 1 sub 1 ## three sub 2	one two two point one two point two three three sub 1 three sub 1 sub 1 three sub 2
Poetry	<poem> A programmer started to cuss, Because getting to sleep was a fuss. As he lay there in bed, Looping ’round in his head, Was: while(!asleep()) sheep++; -- <cite>Author unknown</cite> </poem>	A programmer started to cuss, Because getting to sleep was a fuss. As he lay there in bed, Looping ’round in his head, Was: while(!asleep()) sheep++; -- Author unknown
Blockquotes	text above text above <blockquote>blockquote</blockquote> text below text below	text above text above blockquote text below text below
Preformatted text Note: This way of preformatting only applies to section formatting. Text formatting markup is still effective.	Start each line with a space. * Text is '''preformatted''' and character formatting is effective.	Start each line with a space. * Text is preformatted and character formatting is effective.
Completely preformatted text	<pre> Text is '''preformatted''' and ''markup'' '''''is''''' not effective.</pre>	Text is '''preformatted''' and ''markup'' '''''is''''' not effective.
Syntax Highlighting for code	<syntaxhighlight lang="cpp">#include <iostream> using namespace std; int main (int argc, char** argv) { cout << "Hello World!"; return 0; }</syntaxhighlight>	#include <iostream> using namespace std; int main (int argc, char** argv) { cout << "Hello World!"; return 0; }
A useful error message for syntax higlighting Note: When an invalid 'lang' is used, the error message lists the available languages. Also see [1].	<syntaxhighlight lang="-"></syntaxhighlight>
Horizontal rule	Text above ---- Text below	Text above Text below
Old-school centered text Note: This is deprecated, so use the css method instead.	text above<center>centered</center>text below	text abovecenteredtext below
CSS method to center text	text above<div class="center" style="width:auto; margin-left:auto; margin-right:auto;">centered</div> text below	text above centered text below
Comment	<!-- This is a comment --> Comments are only visible in the edit window.	Comments are only visible in the edit window.

Links

There are three sorts of links:

Internal links to other pages in the wiki.
External links to other websites.
Interwiki links to other websites registered to the wiki in advance.

Internal links

To add an internal link, enclose the name of the page you want to link to in double square brackets. The first letter of the link is automatically capitalized and spaces are replaced with underscores.

Note: A red link indicates that the target page does not exist yet.

Description	You type	You get
An internal link	[[NottingHack]]	NottingHack
A piped link	[[NottingHack\|different text]]	different text
Word-endings are 'blended'	[[Help]]s [[Help]]ing [[Help]]ers [[Help]]anylettersyoulikehere [[Help]]<nowiki></nowiki>anylettersyoulikehere	Helps Helping Helpers Helpanylettersyoulikehere Helpanylettersyoulikehere
Link to an anchor on the current page Note: See #Links to section headings.	[[#See also]]	#See also
Link to the current page's table of contents	[[#toc\|Contents]]	Contents
Link to the top of the current page	[[#top\|top]]	top
Link to an anchor from different text	[[#See also\|different text]]	different text
Setting an internal link anchor Note: Omit the "optional text" for invisible anchor.	<div id="NameOfAnchorHere">optional text</div>	optional text
Link to an anchor at another page	[[Help:Images#See also]]	Help:Images#See also
Shortcut to hide a namespace See #The pipe trick.	[[Help:Contents\|]] [[Help:Contents]]	Contents Help:Contents
Redirect	#REDIRECT [[Main Page]]	→ Main Page
Link to the current page's talk page	[[{{TALKPAGENAME}}\|Discussion]]	Discussion
Link to the current page's edit page	[{{fullurl:{{PAGENAME}}\|action=edit}} Edit]	Edit
Link to a subpage. See #Subpages	[[/example]]	/example
Link to a subpage without the leading slash	[[/example/]]	example
Link to a category page See #Categories	[[:Category:Help]]	Category:Help
Link to an image or a file of other types See #Images	[[media:example.jpg]]	media:example.jpg
Link to the user's user page	[[Special:MyPage]]	Special:MyPage
Additional wiki markup is permitted in link titles	[[#top\|'''<del>rich</del>''' ''link text'' here.]]	~~rich~~ link text here.

Links to section headings

You can link directly to headings within a wiki page. MediaWiki automatically creates an HTML anchor with the same name as the heading.

Description	You type	You get
Links to section headings	[[#External links]] [[#Table pitfalls!]]	#External links #Table pitfalls!

Note: If a heading is renamed then any links to that heading will be broken.

External links

Description	You type	You get
External link	`http://mediawiki.org`	http://mediawiki.org
External link with different label	`[http://mediawiki.org MediaWiki]`	MediaWiki
Numbered external link	`[http://mediawiki.org]`	[2]
External links with file icons Note: See currently supported icons.	`[http://en.wikipedia.org/wiki/.avi video] [http://en.wikipedia.org/wiki/.ogg sound] [http://en.wikipedia.org/wiki/.pdf document]`	video sound document
External link to the same host	`http://{{SERVERNAME}}/pagename`	http://wiki.nottinghack.org.uk/pagename
External link to other host passing the pagename	`http://google.com/search?q={{PAGENAMEE}}`	http://google.com/search?q=Marcus/MediaWiki_Quick_Reference
Mailto link	`[mailto:info@example.org email me]`	email me
Mailto named with subject line and body	`[mailto:info@example.org?Subject=URL%20Encoded%20Subject&body=Body%20Text info]`	info
Additional wiki markup is permitted in link titles	[http://www.example.com/some/image.png Example '''<del>rich</del>''' ''link text'' here.]	Example ~~rich~~ link text here.

External link icons

Test link	Icon	Trigger
[3]	external-link-ltr-icon.png	`.external`, `http://`, `gopher://`
[4]	lock-icon.png	`https://`
[5]	mail-icon.png	`mailto:`
[6]	news-icon.png	`news://`
[7]	file-icon.png	`ftp://`
[8]	talk-icon.png	`irc://`
[9]	audio-icon.png	`.ogg`, `.mid`, `.midi`, `.mp3`, `.wav`, `.wma`
[10]	video-icon.png	`.ogm`, `.avi`, `.mpeg`, `.mpg`
[11]	document-icon.png	`.pdf`, `.pdf#`, `.pdf?`

How to avoid auto-links

By default, when you write a URL as is, it will be transformed to an external link. To avoid that effect, put the URL between <nowiki> tags as in:

<nowiki>http://mediawiki.org</nowiki>

Interwiki links

Interwiki links are abbreviations for longer URLs. They allow you to link to an external wiki almost as if you are linking to a page on your own wiki. The external website must be registered in advance by an administrator. The websites registered on Nottinghack Wiki are listed on the Special:Interwiki page.

For example, you can link to the Sunflower article on http://en.wikipedia.org by typing [[wikipedia:Sunflower]], which will result in a link wikipedia:Sunflower. This is because http://en.wikipedia.org/wiki/ is registered to Nottinghack Wiki by default with the prefix of wikipedia. A similar link could be created as a normal external link by typing [http://en.wikipedia.org/wiki/Sunflower big yellow flower].

The pipe trick

See wikipedia:Help:Pipe_trick.

Tables

Tables may be authored in wiki pages using either XHTML table elements directly, or using wikicode formatting to define the table. XHTML table elements and their use are well described on various web pages and will not be discussed here. The benefit of wikicode is that the table is constructed of character symbols which tend to make it easier to perceive the table structure in the article editing view compared to XHTML table elements.

As a general rule, it is best to avoid using a table unless you need one. Table markup often complicates page editing.

Wiki table markup summary

{\|	table start
\|+	table caption, optional; only between table start and first table row
\|-	table row, optional on first row -- wiki engine assumes the first row
!	table header cell, optional. Consecutive table header cells may be added on same line separated by double marks (`!!`) or start on new lines, each with its own single mark (`!`).
\|	table data cell, required! Consecutive table data cells may be added on same line separated by double marks (`\|\|`) or start on new lines, each with its own single mark (`\|`).
\|}	table end

The above marks must start on a new line except the double || and !! for optionally adding consecutive cells to a line. However, blank spaces at the beginning of a line are ignored.
XHTML attributes. Each mark, except table end, optionally accepts one or more XHTML attributes. Attributes must be on the same line as the mark. Separate attributes from each other with a single space.
- Cells and caption (| or ||, ! or !!, and |+) hold content. So separate any attributes from content with a single pipe (|). Cell content may follow on same line or on following lines.
- Table and row marks ({| and |-) do not directly hold content. Do not add pipe (|) after their optional attributes. If you erroneously add a pipe after attributes for the table mark or row mark the parser will delete it and your final attribute if it was touching the erroneous pipe!
Content may (a) follow its cell mark on the same line after any optional XHTML attributes or (b) on lines below the cell mark. Content that uses wiki markup that itself needs to start on a new line, such as lists, headings, or nested tables, must be on its own new line.
- Pipe character as content. To insert a pipe (|) character into a table use the <nowiki>|</nowiki> escaping markup

Basics

The following table lacks borders and good spacing but shows the simplest wiki markup table structure.

You type

You get

{|
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

Orange	Apple
Bread	Pie
Butter	Ice cream

The cells in the same row can be listed on one line separated by || (two pipe symbols). If the text in the cell contains a line break, use   instead.

You type

You get

{|
|Orange||Apple||more
|-
|Bread||Pie||more
|-
|Butter||Ice<br />cream||and<br />more
|}

Orange	Apple	more
Bread	Pie	more
Butter	Ice cream	and more

Extra spaces within cells in the wiki markup, as in the wiki markup below, do not affect the actual table rendering.

You type

You get

{|
|  Orange    ||   Apple   ||   more
|-
|   Bread    ||   Pie     ||   more
|-
|   Butter   || Ice cream ||  and more
|}

Orange	Apple	more
Bread	Pie	more
Butter	Ice cream	and more

You can have longer text or more complex wiki syntax inside table cells, too:

You type

You get

{|
|Lorem ipsum dolor sit amet, 
consetetur sadipscing elitr, 
sed diam nonumy eirmod tempor invidunt
ut labore et dolore magna aliquyam erat, 
sed diam voluptua. 

At vero eos et accusam et justo duo dolores
et ea rebum. Stet clita kasd gubergren,
no sea takimata sanctus est Lorem ipsum
dolor sit amet. 
|
* Lorem ipsum dolor sit amet
* consetetur sadipscing elitr
* sed diam nonumy eirmod tempor invidunt
|}

Lorem ipsum dolor sit amet,

consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.

At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.

Lorem ipsum dolor sit amet
consetetur sadipscing elitr
sed diam nonumy eirmod tempor invidunt

Table headers

Table headers can be created by using "!" (exclamation mark) instead of "|" (pipe symbol). Headers usually show up bold and centered by default.

You type

You get

{|
! Item
! Amount
! Cost
|-
|Orange
|10
|7.00
|-
|Bread
|4
|3.00
|-
|Butter
|1
|5.00
|-
!Total
|
|15.00
|}

Item	Amount	Cost
Orange	10	7.00
Bread	4	3.00
Butter	1	5.00
Total		15.00

Caption

A table caption can be added to the top of any table as follows.

You type

You get

{|
|+Food complements
|-
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

Food complements
Orange	Apple
Bread	Pie
Butter	Ice cream

XHTML attributes

You can add XHTML attributes to tables. For the authoritative source on these, see the W3C's HTML 4.01 Specification page on tables.

Attributes on tables

Placing attributes after the table start tag ({|) applies attributes to the entire table.

You type

You get

{| border="1" align="center" style="text-align:center;"
|Orange
|Apple
|12,333.00
|-
|Bread
|Pie
|500.00
|-
|Butter
|Ice cream
|1.00
|}

Orange	Apple	12,333.00
Bread	Pie	500.00
Butter	Ice cream	1.00

Attributes on cells

You can put attributes on individual cells. For example, numbers may look better aligned right.

You type

You get

{| border="1"
|Orange
|Apple
|align="right" | 12,333.00
|-
|Bread
|Pie
|align="right" | 500.00
|-
|Butter
|Ice cream
|align="right" | 1.00
|}

Orange	Apple	12,333.00
Bread	Pie	500.00
Butter	Ice cream	1.00

You can also use cell attributes when you are listing multiple cells on a single line. Note that the cells are separated by ||, and within each cell the attribute(s) and value are separated by |.

You type

You get

{| border="1"
| Orange || Apple     || align="right" | 12,333.00
|-
| Bread  || Pie       || align="right" | 500.00
|-
| Butter || Ice cream || align="right" | 1.00
|}

Orange	Apple	12,333.00
Bread	Pie	500.00
Butter	Ice cream	1.00

Attributes on rows

You can put attributes on individual rows, too.

You type

You get

{| border="1"
|Orange
|Apple
|align="right"|12,333.00
|-
|Bread
|Pie
|align="right"|500.00
|- style="font-style:italic; color:green;"
|Butter
|Ice cream
|align="right"|1.00
|}

Orange	Apple	12,333.00
Bread	Pie	500.00
Butter	Ice cream	1.00

Simple one-pixel table border

The default table formatting uses the "border-collapse: separate" model, which adds table cell spacing (which also separates the table outer border from its content cells). Even with a zero cellspacing, the borders of consecutive cells (and of the overall table container) will add up, so to get a one-pixel separation between cells, you need to selectively remove one or more of the four borders of cells.

Such tables may be formatted more simply, using the "border-collapse: collapse" CSS property; in this table formatting model, the cellspacing attribute (or the CSS "border-spacing:" property) and the table's "padding:" CSS property is ignored and only the larger border of adjacent inner cells (or the table border for outer cells) will be used.

An example of the above for one-pixel table border, using each model (without need for external extensions):

You type

You get

{|style="border-collapse: separate; border-spacing: 0; border-width: 1px; border-style: solid; border-color: #000; padding: 0"
|-
!style="border-style: solid; border-width: 0 1px 1px 0"| Orange
!style="border-style: solid; border-width: 0 0 1px 0"| Apple
|-
|style="border-style: solid; border-width: 0 1px 0 0"| Bread
|style="border-style: solid; border-width: 0"| Pie
|}

Orange	Apple
Bread	Pie

{|style="border-collapse: collapse; border-width: 1px; border-style: solid; border-color: #000"
|-
!style="border-style: solid; border-width: 1px"| Orange
!style="border-style: solid; border-width: 1px"| Apple
|-
|style="border-style: solid; border-width: 1px"| Bread
|style="border-style: solid; border-width: 1px"| Pie
|}

Orange	Apple
Bread	Pie

Notes :

When using the "border-width:" CSS shortcut property, the order of the four space-separated specified values is: top, right, bottom, left. As an example from above:

"border-width: 0 1px 0 0"

When there are fewer than 4 values, the value for left takes its default from the value for right, the value for bottom takes its default from the value for top, and the value for right takes its default from the value for top.

The HTML attributes (such as "width=", "border=", "cellspacing=", "cellpadding=") do not need any length unit (the pixel unit is assumed). The CSS style properties (which override the HTML attributes) require an explicit length unit (if the value is not 0) such as "px" for the pixel.

HTML colspan and rowspan

You can use HTML colspan and rowspan attributes on cells for advanced layout.

You type

You get

{| border="1"
!colspan="6"|Shopping List
|-
|rowspan="2"|Bread & Butter
|Pie
|Buns
|Danish
|colspan="2"|Croissant
|-
|Cheese
|colspan="2"|Ice cream
|Butter
|Yoghurt
|}

Shopping List
Bread & Butter	Pie	Buns	Danish	Croissant
Bread & Butter	Cheese	Ice cream		Butter	Yoghurt

With HTML attributes and CSS styles

CSS style attributes can be added with or without other HTML attributes.

You type

You get

{| style="color:green; background-color:#ffffcc;" cellpadding="10" cellspacing="0" border="1"
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

Orange	Apple
Bread	Pie
Butter	Ice cream

Attributes can be added to the caption and headers as follows.

You type

You get

{| border="1" cellpadding="20" cellspacing="0"
|+ align="bottom" style="color:#e76700;" |''Food complements''
|-
|Orange
|Apple
|-
|Bread
|Pie
|-
|Butter
|Ice cream 
|}

*Food complements*
Orange	Apple
Bread	Pie
Butter	Ice cream

Accessibility of table header cells

Table header cells do not explicitly specify which table data cells they apply to (those on their right on the same row, or those below them on the same column). When the table is displayed in a visual 2D environment, this is usually easy to infer.

However when tables are rendered on non-visual medias, you can help the browser to determine which table header cell applies to the description of any selected cell (in order to repeat its content in some accessibility helper) using a scope="row" or scope="col" attribute on table header cells. In most cases with simple tables, you'll use scope="col" on all header cells of the first row, and scope="row" on the first cell of the following rows:

You type

You get

{| border="1" cellspacing="0" cellpadding="2"
|-
!scope="col"| Item
!scope="col"| Quantity
!scope="col"| Price
|-
!scope="row"| Bread
| 0.3 kg
| $0.65
|-
!scope="row"| Butter
| 0.125 kg
| $1.25
|-
!scope="row" colspan="2"| Total
| $1.90
|}

Item	Quantity	Price
Bread	0.3 kg	$0.65
Butter	0.125 kg	$1.25
Total		$1.90

Table pitfalls!

If you start a cell on a new line with a negative number with a minus sign (or a parameter that evaluates to a negative number), your table can get broken, because the characters |- will be parsed as the wiki markup for table row, not table cell. To avoid this, insert a space before the value (| -6) or use in-line cell markup (|| -6).

Images

Note: Images must be uploaded to the wiki before they can be used.

Supported media types for images

The following file formats are supported on Nottinghack Wiki:

.jpg or .jpeg : bitmap image compressed in the standard JPEG format (this lossy format is most suitable for photographs).
.png : bitmap image in the Portable Network Graphics format (specified by the W3 Consortium).
.gif : bitmap image in the legacy Graphics Interchange Format.
.svg : scalable image in the Scalable Vector Graphics format (specified by the W3 Consortium).

Uploading an image

In the sidebar, under “toolbox”, click “Upload file.”
Select the “Source filename”
You can fill in the optional “Summary” text.
Note: This is plain text and not wikitext

After you upload a file, you will be redirected to the “file description page”. You should edit this page to provide more information about the file. For example, you should explain where you got the file from, and what its copyright status is.

Displaying an image

The wikitext to display an image is:

[[File:filename.extension|options|caption]]

The options can be given in any order separated by pipes (|):

border: Adds a very thin border around the image.
frame, frameless, thumb or thumbnail: Controls how the image is formatted and embedded in the rest of the page. See the examples of image formats.
{width}x{height}px: Resizes the image to fit inside a maximum {width} and {height} in pixels. See the examples of image resizing.
Note: The image will always retain its aspect ratio.
{width}px: Resizes the image using a maximum width in pixels.
x{height}px: Resizes the image using maximum height in pixels.
upright: Uses a resizing algorithm suitable for images in portrait orientation rather than landscape.
left, right, center, or none: Controls the horizontal alignment (and inline/block or floating styles) of the image within a text (no default value).
baseline, sub, super, top, text-top, middle, bottom, or text-bottom: Controls the vertical alignment of a non-floating inline image with the text before or after the image, and in the same block (the default vertical alignment is middle).
link={target}: Allows to change the target of the generated link associated with the image. See Altering the default link target.
Note: link does not work with thumb, thumbnail or frame.
alt={alternative text}: Defines the alternative text (maps to the HTML alt="..." attribute).
page={number}: Renders the specified page number (only applicable when showing a .djvu or .pdf file).

If a parameter does not match any of the other possibilities, it is assumed to be the caption text. Caption text is shown below the image in thumb and frame formats, or as mouseover text in border and frameless formats or when the format is omitted. Caption text displayed in the thumb and frame formats may contain wiki links and other formatting. In the other options, wiki-formatting will not work. If no caption text is supplied, a caption is automatically created showing the file name. To completely remove the caption, set it to .

Image dimensions and borders

The effect of the size parameters depend on how the image is formatted, but images will always retain their aspect ratio. When the format is not specified the image can be reduced or enlarged to any size. An image with the frame format always ignores the size specification and the original image will be reduced if it exceeds a maximum size. The size of an image with the thumb format can be reduced, but can not be enlarged beyond the original image size unless it is a scalable media type.

In the examples below, the original size of the image is 400 × 267 pixels.

Format	Reduced Size	Enlarged Template:ImageExamples/size Template:ImageExamples/size Template:ImageExamples/size Template:ImageExamples/size Template:ImageExamples/size

Horizontal alignment

Note that when using the frame or thumb[nail] formats, the default horizontal alignment will be right.

Description	You type	You get Template:ImageExamples/frame Template:ImageExamples/frame Template:ImageExamples/frame Template:ImageExamples/frame Template:ImageExamples/frame

Vertical alignment

The vertical alignment options take effect only if the image is displayed as an inline element and is not floating. They alter the way the inlined image will be vertically aligned with the text present in the same block before and/or after this image on the same row. Note that the displayed line of text where inline images are inserted (and the lines of text displayed after the current one) may be moved down. The line spacing will increase, just as may occur with spans of text with variable font sizes to allow the image height to be fully displayed with this alignment constraint.

To show the alignment result more clearly in this example, the text spans are overlined and underlined, the line-height is increased and emphasized with a yellow background and grey border:

~~text~~ top: ~~text~~

~~text~~ text-top: ~~text~~

~~text~~ ^super: ~~text~~

~~text~~ baseline: ~~text~~

~~text~~ _sub: ~~text~~

~~text~~ default: ~~text~~

~~text~~ middle: ~~text~~

~~text~~ text-bottom: ~~text~~

~~text~~ bottom: ~~text~~

Source code for the example above

<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''top:''' [[File:Example.jpg|20px|top]] [[File:Example.jpg|40px|top]] [[File:Example.jpg|40px|border|top]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''text-top:''' [[File:Example.jpg|20px|text-top]] [[File:Example.jpg|40px|text-top]] [[File:Example.jpg|40px|border|text-top]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
<sup>super:</sup> [[File:Example.jpg|20px|super]] [[File:Example.jpg|40px|super]] [[File:Example.jpg|40px|border|super]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''baseline:''' [[File:Example.jpg|20px|baseline]] [[File:Example.jpg|40px|baseline]] [[File:Example.jpg|40px|border|baseline]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
<sub>'''sub:'''</sub> [[File:Example.jpg|20px|sub]] [[File:Example.jpg|40px|sub]] [[File:Example.jpg|40px|border|sub]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''default:''' [[File:Example.jpg|20px]][[File:Example.jpg|40px]] [[File:Example.jpg|40px|border]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''middle:''' [[File:Example.jpg|20px|middle]] [[File:Example.jpg|40px|middle]] [[File:Example.jpg|40px|border|middle]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''text-bottom:''' [[File:Example.jpg|20px|text-bottom]] [[File:Example.jpg|40px|text-bottom]] [[File:Example.jpg|40px|border|text-bottom]]
<del>text</del></u></span></p>
 
<p style="border:1px solid #AAA;background:#FFC;padding:0;font-size:150%;line-height:2">
<span style="background:#FFF;color:#000;text-decoration:overline"><u><del>text</del>
'''bottom:'' [[File:Example.jpg|20px|bottom]] [[File:Example.jpg|40px|bottom]] [[File:Example.jpg|40px|border|bottom]]
<del>text</del></u></span></p>

Stopping the text flow

On occasion it is desirable to stop text (or other inline non-floating images) from flowing around a floating image. Depending on the web browser's screen resolution and such, text flow on the right side of an image may cause a section header (for instance, == My Header ==) to appear to the right of the image, instead of below it, as a user may expect. The text flow can be stopped by placing   before the text that should start below the floating image.

All images displayed as blocks (including non-floating centered images, left- or right-floating images, as well as framed or thumbnailed floating images) are implicitly breaking the surrounding lines of text (terminating the current block of text before the image, and creating a new paragraph for the text after them). They will then stack vertically along their left or right alignment margin (or along the center line between these margins for centered images).

Altering the link target

The table below shows how to alter or remove the link target associated with an image. Note: The link attribute does not work with thumb or frame formats.

Description	You type	You get Template:ImageExamples/frame Template:ImageExamples/frame Template:ImageExamples/frame

Displaying an image gallery

It's easy to make a gallery of thumbnails with the <gallery> tag:

<gallery>
Image:file_name.ext|caption
Image:file_name.ext|caption
{...}
</gallery>

Note that the image code is not enclosed in quare brackets inside gallery tags. Captions are optional, and may contain wiki links or other formatting. For example:

<gallery>
File:Example.jpg|Item 1
File:Example.jpg|a link to [[Help:Contents]]
File:Example.jpg
File:Example.jpg
File:Example.jpg| ''italic caption''
File:Example.jpg|on page "{{PAGENAME}}"
</gallery>

Is displayed as:

Item 1
a link to Help:Contents
italic caption
on page "Marcus/MediaWiki Quick Reference"

Optional gallery attributes

The gallery tag itself takes several additional parameters, specified as attribute name-value pairs:

<gallery {parameters}>
{images}
</gallery>

caption={caption}: A caption for the gallery.
widths={width}px: The maximum width for the images. Note the plural (widths)
heights={heights}px: The maximum height for the images.
perrow={integer}: The number of images per row.
showfilename={y or n}: Show the filenames in the image captions.

Example wikitext:

<gallery widths=60px heights=60px perrow=7 caption="sunflowers are groovy">
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
File:Example.jpg
</gallery>

Result:

sunflowers are groovy

Linking to an image without displaying it

Link to the description page

If you put a colon (:) before File:, the image will not be embedded and the link will lead to the description page of the file.

Description	You type	You get
Link to the description page of the file	[[:{{ns:image}}:Example.jpg]]	File:Example.jpg
Link to the description page with a custom title.	[[:{{ns:image}}:Example.jpg\|Sunflowers]]	Sunflowers

Link directly to the media file

You can use the pseudo-namespace “Media” to link directly to a file without displaying it, bypassing the description page.

Description	You type	You get
Link directly to a file.	[[{{ns:media}}:Example.jpg]]	Media:Example.jpg
Link directly to a file, with a custom title.	[[{{ns:media}}:Example.jpg\|Sunflowers]]	Sunflowers
link to a potential file, even if it doesn't exist.	[[{{#special:Filepath}}/Example.jpg]]	Special:FilePath/Example.jpg
Generate an external URL to the file	{{FILEPATH:Example.jpg}}	https://wiki.nottinghack.org.uk/images/a/a9/Example.jpg

Displaying images from other websites

Currently it is not possible to embed images from other websites into Nottinghack Wiki. Links are displayed instead. External image embedding could be enabled using mw:Manual:$wgAllowExternalImages.

Description	You type	You get
Link or embed an image from another website	http://upload.wikimedia.org/wikipedia/en/b/bc/Wiki.png	http://upload.wikimedia.org/wikipedia/en/b/bc/Wiki.png

Subpages

See wikipedia:Help:Subpages.

Namespaces

See wikipedia:Help:Namespaces.

Templates

See wikipedia:Help:Templates.

Redirects

See wikipedia:Help:Redirects.

Magic Words

Magic words are strings of text that MediaWiki interprets as a value or function. Page-dependent magic words will affect or return data about the current page (by default), even if the word is added through a transcluded template or included system message.

Behavior switches

A behavior switch controls the layout or behaviour of the page and can often be used to specify desired omissions and inclusions.

Word	Description
`__NOTOC__`	Hides the table of contents (TOC).
`__FORCETOC__`	Forces the table of contents to appear at its normal position (above the first header).
`__TOC__`	Places a table of contents at the word's current position (overriding `__NOTOC__`). If this is used multiple times, the table of contents will appear at the first word's position.
`__NEWSECTIONLINK__`	Adds a link ("+" by default) beside the "edit" tab for adding a new section on a non-talk page (see Adding a section to the end).
`__NOINDEX__`	Tell search engines not to index the page (ie, do not list in search engines' results).

Variables

Variables return information about the current page, wiki, or date. Their syntax is similar to templates.

Technical metadata

Revision variables return data about the latest edit to the current page, even if viewing an older version of the page.

Variable	Output	Description
Site
`{{SITENAME}}`	Nottinghack Wiki	The wiki's site name.
`{{SERVER}}`	https://wiki.nottinghack.org.uk	Domain URL.
`{{SERVERNAME}}`	wiki.nottinghack.org.uk	Domain name.
`{{SCRIPTPATH}}`		Relative path to the wiki scripts on the server.
`{{STYLEPATH}}`	/skins	Relative path to the wiki style sheet on the server.
`{{CURRENTVERSION}}`	1.42.1	The wiki's MediaWiki version.
Latest revision to current page
`{{REVISIONID}}`	397	Unique revision ID
`{{REVISIONDAY}}`	28	Day the edit was made (unpadded number)
`{{REVISIONMONTH}}`	02	Month the edit was made (zero-padded number as of Template:Mediawiki, unpadded number in prior versions)
`{{REVISIONYEAR}}`	2011	Year the edit was made
`{{REVISIONTIMESTAMP}}`	20110228131502	Timestamp of the edit
`{{REVISIONUSER}}`	Marcus	The user who made the most recent edit to the page, or the current user when previewing an edit
`{{PROTECTIONLEVEL:action}}`	protection level	The protection level (e.g. 'autoconfirm', 'sysop') for a given action (e.g. 'edit', 'move') on the current page or an empty string if not protected.
Affects page content
`{{DISPLAYTITLE:title}}`		Format the current page's title. The value must be equivalent to the default title: only capitalization changes and replacing spaces with underscores are allowed.
`{{DEFAULTSORT:sortkey}}` `{{DEFAULTSORTKEY:sortkey}}` `{{DEFAULTCATEGORYSORT:sortkey}}`		Used for categorizing pages, sets a default category sort key. For example if you put `{{DEFAULTSORT:Smith, John}}` at the end of John Smith, the page would be sorted under "S" by default in categories.

Statistics

Numbers returned by these variables normally contain separators (commas or spaces, depending on the local language), but can return raw numbers with the ":R" flag (for example, {{NUMBEROFPAGES}} → 5,470 and {{NUMBEROFPAGES:R}} → 5470). Use "|R" for magic words that require a parameter like PAGESINCATEGORY (for example {{PAGESINCATEGORY:Help}} and {{PAGESINCATEGORY:Help|R}}). Also applicable to {{PAGESIZE:page name}} above.

Variable	Output	Description
Entire wiki
`{{NUMBEROFPAGES}}`	5,470	Number of wiki pages.
`{{NUMBEROFARTICLES}}`	974	Number of pages in content namespaces.
`{{NUMBEROFFILES}}`	2,655	Number of uploaded files.
`{{NUMBEROFEDITS}}`	28,881	Number of page edits.
`{{NUMBEROFVIEWS}}`	Template:NUMBEROFVIEWS	Number of page views. Usually useless on a wiki using caching.
`{{NUMBEROFUSERS}}`	354	Number of registered users.
`{{NUMBEROFADMINS}}`	19	Number of users in the sysop admin group.
`{{NUMBEROFACTIVEUSERS}}`	21	Number of active users, based on the criteria used in Special:Statistics.
`{{NUMBERINGROUP:groupname}}` `{{NUMINGROUP:groupname}}`		Number of users in a specific group.

Page name variables

Variable	Output	Description
`{{FULLPAGENAME}}`	User:Marcus/MediaWiki Quick Reference	Namespace and page title.
`{{PAGENAME}}`	Marcus/MediaWiki Quick Reference	Page title.
`{{BASEPAGENAME}}`	Marcus	Page title excluding the current subpage and namespace. For more complex splitting, use `{{#titleparts:}}`.
`{{SUBPAGENAME}}`	MediaWiki Quick Reference	The subpage title.
`{{SUBJECTPAGENAME}}`	User:Marcus/MediaWiki Quick Reference	The namespace and title of the associated content page.
`{{TALKPAGENAME}}`	User talk:Marcus/MediaWiki Quick Reference	The namespace and title of the associated talk page.

The following are equivalents encoded for use in MediaWiki URLs (i.e. spaces replaced with underscores and some characters percent-encoded):

{{FULLPAGENAMEE}}
{{PAGENAMEE}}
{{BASEPAGENAMEE}}
{{SUBPAGENAMEE}}
{{SUBJECTPAGENAMEE}}
{{TALKPAGENAMEE}}

These can all take a parameter allowing specification of the page to be operated on, instead of just the current page:

{{PAGENAME:Template:Main Page}} → Main Page

Namespace variables

Variable	Output	Description
`{{NAMESPACE}}`	User	Name of the page's namespace
`{{SUBJECTSPACE}}` `{{ARTICLESPACE}}`	User User	Name of the associated content namespace
`{{TALKSPACE}}`	User talk	Name of the associated talk namespace

The following are equivalents encoded for use in MediaWiki URLs (spaces replaced with underscores and some characters percent-encoded):

{{NAMESPACEE}}
{{SUBJECTSPACEE}}
{{TALKSPACEE}}

These can take a page name instead of operating on the current page:

{{NAMESPACE:Template:Main Page}} → Template
{{SUBJECTSPACE:Template:Main Page}} → Template
{{TALKSPACE:Template:Main Page}} → Template talk

Parser functions

Parser functions have the same syntax as templates. The names are sometimes prefixed with a hash to distinguish them from template page names.

Conditional expressions

#if

This function tests whether the first parameter is non-empty. It evaluates to false if the test string is empty or contains only whitespace characters (spaces, newlines, etc).

{{#if: test string | value if true | value if false }}

#ifeq

This parser function compares two strings and determines whether they are identical.

{{#ifeq: string 1 | string 2 | value if identical | value if different }}

#iferror

This function evaluates to true if the input string contains an HTML object with class="error", as generated by other parser functions such as #expr, #time and #rel2abs, template and errors such as loops and recursions.

{{#iferror: test string | value if error | value if correct }}

#ifexpr

This function evaluates a mathematical expression and returns one of two strings depending on the boolean value of the result:

{{#ifexpr: expression | value if true | value if false }}

#ifexist

This function returns one of two values depending on whether a page exists on the local wiki.

{{#ifexist: page title | value if the page exists | value if it doesn't exist }}

#switch

This function compares one input value against several test cases, returning an associated string if a match is found.

{{#switch: comparison string
 | case1 = result1
 | case2 = result2
 | ...
 | caseN = resultN
 | default result0
}}

#expr

This function evaluates a mathematical expression and returns the calculated value. See metawiki:Help:Calculation for details of operators and constants.

{{#expr: expression }}

URL data

Parser function	Input → Output	Description
`{{localurl:page name}}` `{{localurl:page name\|query_string}}`	`{{localurl:MediaWiki}}` → /wiki/MediaWiki `{{localurl:MediaWiki\|printable=yes}}` → /index.php?title=MediaWiki&printable=yes	The relative path to the title.
`{{fullurl:page name}}` `{{fullurl:page name\|query_string}}` `{{fullurl:interwiki:remote page name\|query_string}}`	`{{fullurl:Category:Top level}}` → https://wiki.nottinghack.org.uk/wiki/Category:Top_level `{{fullurl:Category:Top level\|action=edit}}` → https://wiki.nottinghack.org.uk/index.php?title=Category:Top_level&action=edit	The absolute path to the title. This will also resolve Interwiki prefixes.
`{{filepath:file name}}` `{{filepath:file name\|nowiki}}`	`{{filepath:Example.jpg}}` → https://wiki.nottinghack.org.uk/images/a/a9/Example.jpg	The absolute URL to the full size media file.
`{{#rel2abs: path }}` `{{#rel2abs: path \| base path }}`	`{{#rel2abs:.}}` → User:Marcus/MediaWiki Quick Reference `{{#rel2abs:.\|Help:Contents}}` → Help:Contents	Converts a relative file path into an absolute filepath. In `path</path> the following syntax is valid: . → the current level .. → "go up one level" /foo → "go into the subdirectory /foo" If base path is not specified, the full page name of the page will be used instead.`

Date and time functions

Variable	Output	Description
`{{#timel: Y F d, h:i:s}}`	2024 November 23, 11:57:35	Displays the current time and date in the local timezone of the wiki. Due to caching, these variables frequently show when the page was cached rather than the current time.

Namespace functions

{{ns:}} returns the localized name for a namespace. {{nse:}} is the equivalent encoded for MediaWiki URLs. It does the same, but it replaces spaces with underscores, making it usable in external links.

Content namespaces		Talk namespaces
Usage	Output	Usage	Output
`{{ns:-2}}` or `{{ns:Media}}`	Media
`{{ns:-1}}` or `{{ns:Special}}`	Special
`{{ns:0}}` or `{{ns:}}`		`{{ns:1}}` or `{{ns:Talk}}`	Talk
`{{ns:2}}` or `{{ns:User}}`	User	`{{ns:3}}` or `{{ns:User talk}}`	User talk
`{{ns:4}}` or `{{ns:Project}}`	Nottinghack Wiki	`{{ns:5}}` or `{{ns:Project talk}}`	Nottinghack Wiki talk
`{{ns:6}}` or `{{ns:File}}` or `{{ns:Image}}`	File	`{{ns:7}}` or `{{ns:File talk}}` or `{{ns:Image talk}}`	File talk
`{{ns:8}}` or `{{ns:MediaWiki}}`	MediaWiki	`{{ns:9}}` or `{{ns:MediaWiki talk}}`	MediaWiki talk
`{{ns:10}}` or `{{ns:Template}}`	Template	`{{ns:11}}` or `{{ns:Template talk}}`	Template talk
`{{ns:12}}` or `{{ns:Help}}`	Help	`{{ns:13}}` or `{{ns:Help talk}}`	Help talk
`{{ns:14}}` or `{{ns:Category}}`	Category	`{{ns:15}}` or `{{ns:Category talk}}`	Category talk

Formatting functions

Usage	Input → Output	Description
`{{lc:string}}`	`{{lc:DATA CENTER}}` → data center	The lowercase input.
`{{lcfirst:string}}`	`{{lcfirst:DATA center}}` → dATA center	The input with the first character lowercase.
`{{uc:string}}`	`{{uc:text transform}}` → TEXT TRANSFORM	The uppercase input.
`{{ucfirst:string}}`	`{{ucfirst:text TRANSFORM}}` → Text TRANSFORM	The input with the first character uppercase.
`{{padleft:xyz\|stringlength}}` `{{padleft:xyz\|strlen\|char}}` `{{padleft:xyz\|strlen\|string}}`	`{{padleft:xyz\|5}}` → 00xyz `{{padleft:xyz\|5\|_}}` → __xyz `{{padleft:xyz\|5\|abc}}` → abxyz `{{padleft:xyz\|2}}` → xyz `{{padleft:\|1\|xyz}}` → x (first character of the string)	Inserts a string of padding characters (parameter 3) of a specified length (parameter 2) next to a chosen base character or variable (first parameter). The final digits or characters in the base replace the final characters in the padding. The padding string may be truncated if its length does not evenly divide the required number of characters.
`{{padright:xyz\|stringlength}}` `{{padright:xyz\|strlen\|char}}` `{{padright:xyz\|strlen\|string}}`	`{{padright:xyz\|5}}` → xyz00 `{{padright:xyz\|5\|_}}` → xyz__ `{{padright:xyz\|5\|abc}}` → xyzab `{{padright:xyz\|2}}` → xyz `{{padright:\|1\|xyz}}` → x	Identical to padleft, but adds padding characters to the right side.
`{{plural:2\|is\|are}}`	`{{plural:0\|is\|are}}` → are `{{plural:1*1\|is\|are}}` → is `{{plural:21 mod 10\|is\|are}}` → are `{{plural:{{#expr:21 mod 10}}\|is\|are}}` → is `{{plural:1\|is\|are}}` → is `{{plural:2\|is\|are}}` → are	Outputs the singular form (second parameter) if the first parameter is an expression equalling one; the plural form (third parameter) otherwise. Plural transformations are used for languages like Russian based on "count mod 10".
`{{#titleparts: pagename \| number of segments to return \| first segment to return }}`	`{{#titleparts: Talk:Foo/bar/baz }}` → Talk:Foo/bar/baz `{{#titleparts: Talk:Foo/bar/baz \| 1 }}` → Talk:Foo `{{#titleparts: Talk:Foo/bar/baz \| 2 }}` → Talk:Foo/bar `{{#titleparts: Talk:Foo/bar/baz \| 2 \| 2 }}` → bar/baz	Separates a pagetitle into segments based on slashes, then returns some of those segments as output. If the `number of segments` parameter is not specified, it defaults to "0", which returns all the segments. If the `first segment` parameter is not specified or is "0", it defaults to "1":

Miscellaneous functions

Usage	Output	Description
`{{#special:special page name}} {{#special:userlogin}}`	Special:Special page name Special:UserLogin	The localized name for the given Special: page.
`{{gender:username \|return text if user is male \|return text if user is female \|return text if user hasn't defined their gender}}`	(depends on the named user's gender)	A switch for the gender set in Special:Preferences Note: If 3rd parameter is omitted and user hasn't defined his/her gender, then `text if user is male` is returned.

Managing files and pages

System Information

Nottinghack Wiki is running MediaWiki 1.42.1. See:

Detailed version information and the list of extensions
The Interwiki Table
Usage statistics
The gallery or list of recently uploaded files.
Unused files that might not be needed.
Other SpecialPages

@@ Line 1: / Line 1: @@
 This is a single-page reference guide for {{SITENAME}}.  If you are not familiar with wikitext and markup languages, see the tutorial on [[Using the Wiki]].
+<div class="toclimit-2">__TOC__</div>
 == About this Wiki ==

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HTML Symbol Entities
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¿	∈	Ï	ï	Κ	κ	Λ	λ	⟨	«	←	⇐	⌈	“	≤	⌊	∗	◊	‎	‹	‘	<	¯	—	µ	·	−	Μ	μ	∇		–
≠	∋	¬	∉	⊄	Ñ	ñ	Ν	ν	Ó	ó	Ô	ô	Œ	œ	Ò	ò	‾	Ω	ω	Ο	ο	⊕	∨	ª	º	Ø	ø	Õ	õ	⊗	Ö
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User:Marcus/MediaWiki Quick Reference: Difference between revisions

Revision as of 13:15, 28 February 2011

About this Wiki

Formatting

Basic Markup

Formatting Pitfalls

Symbols

Mathematical formulae

Layout

Headings

Paragraphs

Other section formatting

Links

Internal links

Links to section headings

External links

External link icons

How to avoid auto-links

Interwiki links

The pipe trick

Tables

Wiki table markup summary

Basics

Table headers

Caption

XHTML attributes

Attributes on tables

Attributes on cells

Attributes on rows

Simple one-pixel table border

HTML colspan and rowspan

With HTML attributes and CSS styles

Accessibility of table header cells

Table pitfalls!

Images

Supported media types for images

Uploading an image

Displaying an image

Image dimensions and borders

Horizontal alignment

Vertical alignment

Stopping the text flow

Altering the link target

Displaying an image gallery

Optional gallery attributes

Linking to an image without displaying it

Link to the description page

Link directly to the media file

Displaying images from other websites

Categories

Subpages

Namespaces

Templates

Redirects

Magic Words

Behavior switches

Variables

Technical metadata

Statistics

Page name variables

Namespace variables

Parser functions

Conditional expressions

#if

#ifeq

#iferror

#ifexpr

#ifexist

#switch

#expr

URL data

Date and time functions

Namespace functions

Formatting functions

Miscellaneous functions

Managing files and pages

Moving (renaming) a page

Deleting a page

Importing files from another wiki

System Information

HTML Symbol Entities
Á	á	Â	â	´	Æ	æ	À	à	ℵ	Α	α	&	∧	∠	Å	å	≈	Ã	ã	Ä	ä	„	Β	β	¦	•	∩	Ç	ç	¸	¢
Χ	χ	ˆ	♣	≅	©	↵	∪	¤	†	‡	↓	⇓	°	Δ	δ	♦	÷	É	é	Ê	ê	È	è	∅			Ε	ε	≡	Η	η
Ð	ð	Ë	ë	€	∃	ƒ	∀	½	¼	¾	⁄	Γ	γ	≥	>	↔	⇔	♥	…	Í	í	Î	î	¡	Ì	ì	ℑ	∞	∫	Ι	ι
¿	∈	Ï	ï	Κ	κ	Λ	λ	⟨	«	←	⇐	⌈	“	≤	⌊	∗	◊	‎	‹	‘	<	¯	—	µ	·	−	Μ	μ	∇		–
≠	∋	¬	∉	⊄	Ñ	ñ	Ν	ν	Ó	ó	Ô	ô	Œ	œ	Ò	ò	‾	Ω	ω	Ο	ο	⊕	∨	ª	º	Ø	ø	Õ	õ	⊗	Ö
ö	¶	∂	‰	⊥	Φ	φ	Π	π	ϖ	±	£	′	″	∏	∝	Ψ	ψ	"	√	⟩	»	→	⇒	⌉	”	ℜ	®	⌋	Ρ	ρ	‏
›	’	‚	Š	š	⋅	§		Σ	σ	ς	∼	♠	⊂	⊆	∑	⊃	¹	²	³	⊇	ß	Τ	τ	∴	Θ	θ	ϑ		Þ	þ	˜
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