Safer Nicotine Wiki:Namespace: Difference between revisions

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{{Infopage|WP:NS|WP:NSPACE|style=margin:1.0em auto;}}

A Wikipedia '''namespace''' is a set of Wikipedia pages whose [[Help:page name|names]] begin with a particular reserved word recognized by the [[MediaWiki]] software (followed by a colon). For example, in the ''user namespace'' all titles begin with the prefix ''User:''. In the case of the article (or main) namespace, in which encyclopedia articles appear, the reserved word and colon are absent. (Note: main space articles can optionally include a colon at the beginning with no reserved word, so <code>[<nowiki/>[Article]]</code> and <code>[<nowiki/>[:Article]]</code> are equivalent. This is usually only necessary for the advanced technique of [[WP:Transclusion|transcluding]] a main space article into another page.)

The aliases '''WP''' for '''Wikipedia''', and '''WT''' for '''Wikipedia&nbsp;talk''', work for page names in the search box, and making links as well as inclusions. See [[#Aliases|Aliases]] below for other aliases. (The pseudo-namespaces such as '''H''' for '''Help''', and '''CAT''' for '''Category''', are extremely limited. See ''[[#Pseudo-namespaces|Pseudo-namespaces]]'' below.)

* '''[[Wikipedia:Module namespace|Module namespace]]''' (prefix '''Module:'''): contains [[mw:Extension:Scribunto|Scribunto]] modules&nbsp;– Lua scripts implementing special-purpose [[mw:Manual:Parser functions|parser functions]] for use in templates, beyond the [[Help:Magic words#Parser functions|basic set]] included with MediaWiki and its [[mw:Extensions FAQ|extensions]].

* '''Gadget definition namespace''' (prefix '''Gadget definition:'''): installed but not currently in use; see above for more information. Gadget definitions currently use the [[MediaWiki:Gadgets-definition]] page.

===Not installed===

On [[MediaWiki]] installations other than the English Wikipedia, additional namespaces may be installed by [[mw:Manual:Extensions|MediaWiki extension]]s; the list of default IDs for these namespaces is at [[mw:Extension default namespaces|Extension default namespaces]].

===Aliases and pseudo-namespaces===

=== Special ===

{{main|Help:Special page}}

You can create a [[Wikipedia:redirect|redirect]] to a Special page, but the redirect will not be followed automatically.

An alias cannot be used as the actual namespace in a page title. For example, you cannot create page ''WP:123''; if tried, the page name is instantly converted to ''Wikipedia:123''. It ''is'', however, possible to [[Wikipedia:Page name#Changing the displayed title|change the ''displayed'' title]] on page ''Wikipedia:123'' to make it ''WP:123'' or ''Project:123''.

=== Pseudo-namespaces ===

<!-- This section is linked from [[Wikipedia:Glossary]] -->

{{Shortcut|WP:PNS}}

* '''[[Special:Prefixindex/CAT:|CAT:]]''' for shortcuts to the [[Wikipedia:Category namespace|Category namespace]]. See also [[:Category:Redirects to category space]]

Pseudo-namespaces are not in any way recognised by the wiki software; they are purely a community custom. Titles in pseudo-namespaces actually belong technically in the main (article) namespace and are treated as such by the software: they are case-sensitive and appear in [[Help:Search#Syntax|search results]] restricted to the main namespace. An alias is treated like a real namespace, resulting in a search for the [[WP:page name|pagename]] in its namespace, but the "pseudo-namespace:pagename" search is in mainspace, not its pseudo-namespace. For example, searching for "H:S" will not search '''Help'''.

==<span id="Interwiki links"></span>Interwiki and interlanguage links ==

Important points to note:

When making links to other language Wikipedias, add an initial colon if you want the link to appear inline rather than in the skin's sidebar under "Languages"; see [[Help:Colon trick]] for an explanation. So <code><nowiki>[[:de:Internet]]</nowiki></code> is an inline link to "[[:de:Internet|Internet]]" in the German Wikipedia; but if using an interwiki prefix this is unnecessary, for example <code><nowiki>[[w:de:Internet]]</nowiki></code> is the same inline link.

* Change the functionality of <kbd><nowiki>{{</nowiki>[[WP:Transclusion|pagename]]<nowiki>}}</nowiki></kbd> so that it defaults to the set of pagenames in '''Template'''.

* Tailor ''[[Wikipedia:Edit notices|edit notices]]'' to a particular namespace's edit page, informing an editor of certain aspects about the content of that namespace.

The namespace functionality is often visible in the URL, where you will see a namespace number. These are given in the table below.

== Programming ==

{{anchor|Enumeration}}

{| border="0" cellpadding="4" cellspacing="0" class="wikitable"

|<nowiki>{{ns:101}}</nowiki>

|{{ns:101}}

|-

|<nowiki>{{ns:118}}</nowiki>

|<nowiki>{{ns:119}}</nowiki>

|{{ns:119}}

|-

|<nowiki>{{ns:710}}</nowiki>

|}

All namespaces with a positive number or zero in this list are searchable. Specifically, the {{ns:-2}} and {{ns:-1}} namespaces are not searchable.