PBC:Namespace

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PBC data structure
Subject namespaces Talk namespaces
0 (Main/Article) Talk 1
2 User User talk 3
4 Porn Base Central Porn Base Central talk 5
6 File File talk 7
8 MediaWiki MediaWiki talk 9
10 Template Template talk 11
12 Help Help talk 13
14 Category Category talk 15
100 Portal Portal talk 101
108 Books Books talk 109
118 Draft Draft talk 119
446 PBC PBC talk 447
766 ARB ARB talk 767
776 A A talk 777
786 B B talk 787
796 V V talk 797
828 Module Module talk 829
2300 Gadget Gadget talk 2301
2302 Gadget definition Gadget definition talk 2303
-1 Special
-2 Media

A PBC namespace is a set of PBC pages whose 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 [[Article]] and [[:Article]] are equivalent. This is usually only necessary for the advanced technique of transcluding a main space article into another page.)

PBC has 34 current namespaces: 16 subject namespaces, 16 corresponding talk namespaces, and 2 virtual namespaces. These are all listed in the box to the left. While surfing PBC, a list of namespaces is available in two clicks: do an empty search, then click Advanced under the search box. The list also makes itself available where needed in the dropdown menus of, for example, Special:Prefixindex, Special:Allpages, Special:Recentchanges, and Special:Contributions.

The aliases PBC for Porn Base Central, and PBC talk for Porn Base Central talk, work for page names in the search box, and making links, and making inclusions. See Aliases below for other aliases. (The pseudo-namespaces such as H for Help, and CAT for Category, are extremely limited. See Pseudo-namespaces below.)

The table on the right shows what number to use when you want to hide pages that are on your watchlist. See: PBC:Hide Pages in Watchlist for details.

Subject namespaces

This page is in the PBC namespace.

Namespaces allow for the organization and separation of content pages from administration pages. Namespaces separate data into core sets, those intended for public viewing, and those intended for the editing community. PBC's subject namespaces and their functions are listed below. A brief description is provided, but see the link for more information.

A namespace is sometimes called a space, for short, as in "Project space". A subject page and its talk page form a pair.

In use

  • Main namespace (no prefix): contains all encyclopedia articles, lists, disambiguation pages, and encyclopedia redirects. Sometimes referred to as "mainspace".
  • User namespace (prefix User:): contains user pages and other pages created by individual users for their own personal use. Pages under this namespace can still be viewed and modified by others, so do not keep any of your sensitive data here.
  • PBC namespace or Project namespace (prefix PBC:): contains many types of pages connected with the PBC project itself: information, policy, essays, processes, discussion, etc. Namespace aliases: PBC: or Project:
  • File namespace or Image namespace (prefix File:): contains file description pages for image, videos or audio files. These in turn have a link to their actual data file. Namespace alias: Image:
  • MediaWiki namespace (prefix MediaWiki:): a namespace containing interface texts, such as the links and messages that appear on automatically generated pages. Pages in this namespace are permanently protected. For a list of these messages, see Special:AllMessages. (The prefix cannot be shortened to "MW" because mw is an interwiki prefix. See Interwiki links below.)
  • Template namespace (prefix Template:): contains templates – pages that are intended primarily to be transcluded or substituted onto other pages to insert standard text or boxes such as infoboxes and navigation boxes.
  • Help namespace (prefix Help:): contains pages which provide help in using PBC and its software, both for users of the encyclopedia and for editors.
  • Category namespace (prefix Category:): contains category pages, which display a list of pages and subcategories that have been added to a particular category, and optional additional text.
  • Portal namespace (prefix Portal:): for reader-oriented portals that help readers find articles related to a specific topic, and may contain links to encourage contributions to relevant WikiProjects. See, for example, Portal:Cricket and Portal:Spaceflight.
  • Book namespace (prefix Book:): contains entries for PBC books, collections of articles about one theme, that can be used to generate downloadable files or printable documents.
  • Draft namespace (prefix: Draft:): hosts drafts of new PBC articles.
  • TimedText namespace (prefix TimedText:): synchronized subtitles for media files.
  • Module namespace (prefix Module:): contains Scribunto modules – Lua scripts implementing special-purpose parser functions for use in templates, beyond the basic set included with MediaWiki and its extensions.

Not in use

  • Gadget namespace (prefix Gadget:): installed but not in use. Gadgets, which are small snippets enabled in user preferences, use the Mediawiki namespace with the MediaWiki:Gadget- page name prefix. It is a custom namespace installed by the Gadget extension.
  • Gadget definition namespace (prefix Gadget definition:): installed but not in use; see above for more information. Gadget definitions use the MediaWiki:Gadgets-definition page.

The Flow namespace (prefix Topic:) is a proposed talk page replacement, installed on English PBC by a MediaWiki extension.

Aliases and pseudo-namespaces

An alias of a namespace is its namespace. For example, PBC: is Porn Base Central:, and so [[Porn Base Central:Page name]] can be abbreviated [[PBC:Page name]]. See Aliases below, for a list of aliases, such as PBC talk: for Porn Base Central talk:. A pseudo-namespace is an agreement to create redirect pages named that way, each of which is a shortcut from mainspace to a single page in its namespace. So an alias refers to any page in its namespace, but a pseudo-namespace has far fewer pages than its real namespace. There are a few pseudo-namespace names like H: for Help:, and CAT: for Category:, and these can be discovered below in the section Pseudo-namespaces.

Talk namespaces

Each of the above namespaces (but not the virtual namespaces and Topic: namespace) has an associated talk namespace—these are also known as discussion pages. The talk namespaces are designated by appending the word talk to the namespace name. For example, the talk namespace associated with the user namespace has the prefix User talk:. The talk namespace associated with the article namespace is Talk:.

Most of the pages in the talk namespaces are used to discuss changes to the corresponding page in the associated namespace. Pages in the user talk namespace are used to leave messages for a particular user. The user talk namespace is special in that, whenever a user's talk page is edited, that user will see an orange box saying "You have new messages" on the top of every page that they view until they visit their talk page. By default, logged-in users will see a red notification square and a small orange box on the top right hand corner of the page; IP users will only see a wide orange box spanning the top of the page. (Minor edits made by bots no longer set off the new message bar. For logged-in users, the new-message bar may be disabled in Special:Preferences.)

Virtual namespaces

There are two virtual namespaces that do not relate to pages stored in the database:

Special

The Special: namespace consists of pages (called special pages) that are created by the software on demand, such as Special:RecentChanges. These pages can be linked as usual, as with [[Special:RecentChanges]], except when they have parameters. To use parameters, the full URL must be given as an external link. For example, https://pbcxxx.org/w/index.php?title=Special:Recentchanges&days=3&limit=10, which returns the last ten changes in the last three days.

You can create a redirect to a Special page, but the redirect will not be followed automatically.

For a list of special pages, see Special:SpecialPages.

Media

The Media: namespace can be used to link directly to a file, rather than to the file description page.

Aliases and pseudo-namespaces

Aliases and pseudo-namespaces are not namespaces in themselves; their main role is to provide handy ways to link to actual namespaces, by providing shortened links.

The main difference between them being the way they work for this purpose; while aliases directly link to namespaces, pseudo-namespaces can only link to other namespaces by using specialist redirect pages in the main namespace called shortcuts. While aliases are also used for shortcuts, this isn't necessary if the pagename is not shortened.

Aliases

Shortcut:

There are six aliases defined for namespaces, all of which are case-insensitive:

Alias Namespace
PBC Porn Base Central
Project
PBC talk Porn Base Central talk
Project talk
Image File
Image talk File talk

If a link is made to a page title beginning with one of these strings, or if such a title is entered in the search box or used in a URL, the alias is automatically replaced by the true namespace prefix. Hence entering PBC:Linking or Porn Base Central:Linking is equivalent to entering PBC:Linking, and PBC talk:Linking is equivalent to Porn Base Central talk:Linking.

An alias cannot be used as the actual namespace in a page title. For example, you cannot create page PBC:123; if tried the page name is instantly converted to PBC:123. It is, however, possible to change the displayed title on page PBC:123 to make it PBC:123 or Porn Base Central:123.

This is very handy for the creation of shortcuts. For example, the shortcut for this section is PBC:ALIAS, as shown in the right-side box. When the link is clicked, it automatically translated to PBC:ALIAS. At this page is a redirect to PBC:Namespace#Aliases. This means that the shortcut goes directly to this section from anywhere in PBC.

Pseudo-namespaces

Shortcut:

Аpart from PBC's 32 regular namespaces and their aliases, and 2 virtual ones, there are several title prefixes appearing in shortcut redirects pointing to frequently-referred-to PBC pages. These prefixes are referred to as pseudo-namespaces and include the following:

A more complete list is available at PBC:Shortcut#List of prefixes.

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 search results restricted to the main namespace. An alias is treated like a real namespace, resulting in a search for the 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.

To learn some of these shortcuts, first follow the pseudo-namespace link above, then follow one of the redirects listed on that page. It will take you to the target, where you then notice any {{shortcut}} boxes to the right of the page, listing all the other shortcuts to that same area. By observing these steps repeatedly, you can discover ways to shorten your typing. You will use pseudo-namespace names more often if you are an advanced editor, highly active in many namespaces, or constantly linking to pages in a pseudo-namespace.

To understand the appropriateness of redirects of this type, see PBC:Cross-namespace redirects. All shortcuts are discoverable by looking for redirects. Try the Special:Search engine Advanced interface, with the "redirects" check-box selected; there is also the category PBC redirects.

Interwiki links

Inter-language or interwiki prefixes do not define namespaces, but point to pages in other Wiki sites, outside the PBC website. They are mentioned here because they use a namespace-like prefix technique for linking. By default, that is unless combined with another in-project namespace prefix, they link to the main namespace of the related project. Examples of such prefixes include m: (or meta:) for Meta-Wiki, mw: for MediaWiki, wikt: for Wiktionary, frwiki: for French Wikipedia, dewiki: for German Wikipedia, etc.

For example, wikipedia:François Sagat link to the "English Wikipedia" page in the main namespace of the Wikipedia. Another example: wikt:fr:Discuter:pied/fusion daf links to the "pied/fusion daf" page in the talk namespace (3rd prefix) of French (2nd prefix) Wiktionary (1st prefix). When making links to other language PBCs, remember to add an initial colon if the link is intended to appear inline.

For a complete list of interwiki prefixes, see the interwiki table.

As with aliases, it is not possible to create a page with a title beginning with an interwiki or interlanguage prefix. This includes the prefixes w: and en:, which are used in other projects to refer to English PBC.

It is also not possible to create redirects to interwiki pages.

Case insensitivity

Standard namespace names, aliases and interwiki prefixes are case insensitive. The same applies to the first character after the colon. Hence the following all link to the same page:

Namespace-dependent functionality

The namespace name is a useful variable for searching in and reporting on sets of pages. It is also used to apply features that configure the sets of pages in one namespace differently from another namespace. Using the namespace name MediaWiki can:

  • Search for pages in a particular namespace only.
  • Report on content or changes in content of a namespace.
  • Enable or disable the subpage feature, per namespace.
  • Offer a random article for the main page ([[Special:Random]]), or for a namespace [[Special:Random/Namespace]].
  • Change the functionality of wikilink if it targets the Category namespace or File namespace. Normally wikilinks are activated by the mouse, but Category:Pagename activates software functionality when the page is saved, and [[File:Page name]] activates software functionality when the page is rendered.
  • Change the functionality of {{pagename}} so that it defaults to the set of pagenames in Template.
  • Tailor messages to a particular namespace's edit page, informing an editor of certain aspects about the content of that namespace. Such a message is different from the template message on a particular page of a namespace. Messages and are triggered by variables that can use a namespace name.

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

Subpages are configured for all namespaces except Main, File, MediaWiki and Category namespaces. Subpages are configured in the software by enabling or disabling the subpage feature per namespace. This further extends the function of a namespace by extending the types of pages or topics of pages a namespace can home. For example, talk page /archives are subpages, and they are both namespace searchable and page name searchable from the search box, unlike history pages, which are in no namespace. Another example is in the Template namespace where it is routine to put the documentation in a subpage called /doc.

Random pages are enabled, in the default software configuration, only for the mainspace.

Searching and reporting can operate over the entire database, or they can be limited to a namespace, and so they will offer a list of all the namespaces currently configured. Special:WhatLinksHere also offers a list of namespaces.

Programming

The 34 namespaces in the English PBC are numbered for programming purposes. The prefix for each namespace is generated by a variable, using the magic word {{ns}}, in the form {{ns:xx}}, as shown in the table below.

Namespace variable Result (namespace name) Namespace variable Result (talk namespace name)
{{ns:-2}} Media
{{ns:-1}} Special
{{ns:0}} (main namespace, returns empty string) {{ns:1}} Talk
{{ns:2}} User {{ns:3}} User talk
{{ns:4}} Porn Base Central {{ns:5}} Porn Base Central talk
{{ns:6}} File {{ns:7}} File talk
{{ns:8}} MediaWiki {{ns:9}} MediaWiki talk
{{ns:10}} Template {{ns:11}} Template talk
{{ns:12}} Help {{ns:13}} Help talk
{{ns:14}} Category {{ns:15}} Category talk
{{ns:100}} Portal {{ns:101}} Portal talk
{{ns:108}} Books {{ns:109}} Books talk
{{ns:118}} Draft {{ns:119}} Draft talk
{{ns:446}} PBC {{ns:447}} PBC talk
{{ns:828}} Module {{ns:829}} Module talk
{{ns:2300}} Gadget {{ns:2301}} Gadget talk
{{ns:2302}} Gadget definition {{ns:2303}} Gadget definition talk

Alternative variables are available for most namespaces, for example {{ns:talk}}, {{ns:user}}, and {{ns:user_talk}} for {{ns:1}}, {{ns:2}} and {{ns:3}}. The portal and book namespaces are numbered in the 100-plus range as are all MediaWiki nonstandard namespaces.

All namespaces with a positive number or zero in this list are searchable. Specifically, the Media and Special namespaces are not searchable.

The magic word {{NAMESPACE}} returns the namespace prefix of the current page. This can be used in combination with other magic words and parser functions to change the appearance of templates depending on the namespace in which they are transcluded.

See also

Information icon.svg Help desk