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This template is used on approximately 65,000 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.

If you plan to make breaking changes to this template, move it, or nominate it for deletion, please notify Twinkle's users and maintainers at Wikipedia talk:Twinkle as a courtesy, as the standard installation of Twinkle adds and removes this template. Thank you!

Shortcuts

((R avoid 2R))
((A2r))

When used with the "Redirect category shell" (Rcat shell) template:

This page is a redirect. The following categories are used to track and monitor this redirect:

From an avoided double redirect: This is a redirect from an alternative title or related topic of (redirect page name), another redirect to the same title. Because double redirects are disallowed, both pages currently point to (target article).
- If (redirect page name) is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.

When appropriate, protection levels are automatically sensed, described and categorized.

Template ((Redirect category shell)) may be used to add one or more rcat templates, along with their parameters and categories, to a redirect. For more information see the documentation page below.

When used by itself:

From an avoided double redirect: This is a redirect from an alternative title or related topic of (redirect page name), another redirect to the same title. Because double redirects are disallowed, both pages currently point to (target article).
- If (redirect page name) is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.

This template should not be substituted nor used to tag soft redirects.

Because the saved version of a page is used to determine if it is a redirect, this template may incorrectly give an error in preview mode. Save the page to be sure if the error is true or not.

This template uses Lua:

Module:R avoided double redirect (sandbox)

Purpose

Some redirects should target other redirects, but that is not allowed by Wikipedia software. A redirect that targets another redirect is called a "double redirect". This redirect category (rcat) template may be used to tag redirects from alternative forms (abbreviations, disambiguated titles, etc.) of titles that are themselves redirects to broader-topic articles (whether or not marked as redirects with possibilities). To avoid a double redirect, any alternative-title redirect must also target the same broader article, and must be updated if the redirect from the more specific title is converted to a separate article.

Usage

This rcat template populates the following categories by default:
- Category:Avoided double redirects – if page specified in the unnamed parameter is still a redirect
- Category:Avoided double redirects to be updated – if specified page is no longer a redirect
Add this rcat to a redirect page (not a talk-page redirect) in the following manner:

#REDIRECT [[(target article title)]]

((Rcat shell|
((R avoided double redirect|1=(specified page)))
))

or the 1= may be omitted:

#REDIRECT [[(target article title)]]

((Rcat shell|
((R avoided double redirect|(specified page)))
))

The "(specified page)" is the other redirect that has possibilities of being converted into an article, and to which the tagged redirect may someday be retargeted.

Template ((Rcat shell)) is an alias for the Redirect category shell template, which may be used to add as many appropriate rcats as needed, usually from one to seven, along with their parameters, to a redirect. For more information see the documentation on its template page. This rcat may also tag a redirect individually:

#REDIRECT [[(target article title)]]

((R avoided double redirect|(specified page)))

This is in accord with instructions found at Wikipedia:REDCAT.

Use this rcat to tag any mainspace redirect from a title that should target another redirect. For example, so far there is no article Harriman Nelson yet, and that title is a redirect to Voyage to the Bottom of the Sea (TV series). Alternate forms of that redirect, such as Admiral Harriman Nelson, must also redirect to the "Voyage to the Bottom of the Sea (TV series)" article in order to avoid a double redirect. In this case the Admiral Harriman Nelson redirect should be tagged with this rcat template as follows:

#REDIRECT [[Voyage to the Bottom of the Sea (TV series)]]

((Rcat shell|
((R avoided double redirect|Harriman Nelson))
((R unprintworthy))
))

or if applied individually:

#REDIRECT [[Voyage to the Bottom of the Sea (TV series)]]

((R avoided double redirect|Harriman Nelson))

The individual usage on the Admiral Harriman Nelson redirect would display (without the border):

From an avoided double redirect: This is a redirect from an alternative title or related topic of Harriman Nelson, another redirect to the same title. Because double redirects are disallowed, both pages currently point to Voyage to the Bottom of the Sea (TV series).
- If Harriman Nelson is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.

If a new article is later created at Harriman Nelson, then the template output on the Admiral Harriman Nelson redirect will automatically change to:

From an avoided double redirect: This is a redirect from an alternative title or related topic of Harriman Nelson, a former redirect to the same title.
- Harriman Nelson is not a redirect. Most likely this redirect should be updated to point to Harriman Nelson now that it is no longer a redirect, and this template removed.
- If that is not the correct target for this redirect, update or remove this template and/or the redirect itself and/or the other page as appropriate.

In the first case above, the boldface From an avoided double redirect would actually link to the main category, Avoided double redirects, and in the second case the link would automatically be altered to Category:Avoided double redirects to be updated.

Usage with other redirect categories

Avoided double redirects are considered to inherit the redirect categories of the initial redirect and should not be placed in redirect categories that apply in the same way to both. (This would create a redundancy that would increase the maintenance burden.) For instance, say Campus of Foobar University is a redirect to Foobar University tagged with ((R from subtopic)) and ((R to section)). The avoided double redirect, Foobar University campus, should be tagged only with ((R from avoided double redirect)), not ((R from subtopic)) and ((R to section)).

However, additional redirect categories may be used when they apply specifically to the avoided double redirect. For instance, Campus of Fooobar University (with a triple o) could have ((R from misspelling)) in addition to ((R from avoided double redirect)).

((R printworthy)) and ((R unprintworthy)) may be used when appropriate.

Aliases

Also known as... – list of templates that redirect here and may also be used

Printworthiness

Please do not alter the printworthy settings of this rcat without first notifying the Version 1.0 Editorial Team, who are responsible for any and all materials, including redirects, that go into a printed version of Wikipedia.

In main-article namespace, many redirects from avoided double redirects are considered printworthy; however, there are many others that are unprintworthy, so there is no default sort for printworthiness. In 2003, efforts were begun to support the Wikimedia Foundation's goal of increasing access and availability of Wikipedia articles in printed versions. Some rcats automatically populate either Category:Printworthy redirects or Category:Unprintworthy redirects by default. Others, like this rcat, do not, and that means it is up to editors to choose which of those categories, Printworthy or Unprintworthy, is appropriate and should be populated. The rcats that are used separately to populate those categories are:

((R printworthy)) and
((R unprintworthy))

Please click on each one for more details and guidance.

Template ((Redirect category shell)) will accept these rcats just like any other.

Examples:

((Rcat shell|
((R avoided double redirect|(specified page)))
((R printworthy))
))

((Rcat shell|
((R avoided double redirect|(specified page)))
((R unprintworthy))
))

Either ((Redirect category shell)) or its alias/shortcut, ((Rcat shell)), may be used.

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:R avoided double redirect in articles based on its TemplateData.

TemplateData for R avoided double redirect

This redirect category (rcat) template may be used to tag redirects from alternative forms (abbreviations, disambiguated titles, etc.) of titles that are themselves redirects to broader-topic articles (whether or not marked as redirects with possibilities). To avoid a double redirect, any alternative-title redirect must also target the same broader article, and must be updated if the redirect from the more specific title is converted to a separate article.

Template parameters[Edit template data]
This template prefers inline formatting of parameters.
Parameter		Description	Type	Status
Redirect page name	`1`	The page this redirect would target if the page wasn't also a redirect.	Page name	required

Abbreviation	((R to acronym)) ((R from acronym)) ((R to initialism)) ((R from initialism)) ((R from numeronym)) ((R from Bluebook abbreviation)) ((R from ISO 4 abbreviation)) ((R from MathSciNet abbreviation)) ((R from NLM abbreviation))
Capitalisation	((R from CamelCase)) ((R from other capitalisation)) ((R from miscapitalisation))
Grammar & punctuation	((R from modification)) ((R from plural)) ((R to plural))
Parts of speech	((R from adjective)) ((R from adverb)) ((R from common noun)) ((R from gerund)) ((R from proper noun)) ((R from verb))
Spelling	((R from alternative spelling)) ((R from alternative hyphenation)) ((R from alternative punctuation)) ((R from alternative spacing)) ((R from alternative transliteration)) ((R from American English)) ((R from ASCII-only)) ((R to ASCII-only)) ((R from British English)) ((R from diacritic)) ((R to diacritic)) ((R from ligature)) ((R to ligature)) ((R from misspelling)) ((R from stylization))

Alternative
names

General	((R from alternative language)) language codes ((R from alternative name)) ((R from ambiguous sort name)) ((R from antonym)) ((R from colloquial name)) ((R country data)) ((R from former name)) ((R from incomplete name)) ((R from incorrect name)) ((R from less specific name)) ((R from long name)) ((R from more specific name)) ((R from non-neutral name)) ((R to numerals)) ((R from numerals)) ((R to Roman numerals)) ((R from Roman numerals)) ((R from portmanteau)) ((R from short name)) ((R from sort name)) ((R from synonym))
People	((R from birth name)) ((R from given name)) ((R to joint biography)) ((R from married name)) ((R from name with title)) ((R from person)) ((R from personal name)) ((R from Eastern name)) ((R from pseudonym)) ((R from surname))
Technical	((R from CAS Registry Number)) ((R from court case)) ((R from drug trade name)) ((R from filename)) ((R from identifier)) ((R from Java package name)) ((R from chemical formula)) ((R from gene symbol)) ((R from technical name)) ((R to technical name)) ((R from radio frequency))
Organisms	((R to scientific name)) ((R from scientific name)) ((R from alternative scientific name)) ((R from scientific abbreviation)) ((R to monotypic taxon)) ((R from monotypic taxon)) ((R taxon with possibilities)) ((R from species to genus))
Geography	((R from name and country)) ((R from more specific geographic name)) ((R from postal code))

Navigation
aids

Navigation	((R to anchor)) ((R avoided double redirect)) ((R from category navigation)) ((R from file metadata link)) ((R to list entry)) ((R mentioned in hatnote)) ((R to section)) ((R from shortcut))
Disambiguation	((R from ambiguous term)) ((R to disambiguation page)) ((R from incomplete disambiguation)) ((R from incorrect disambiguation)) ((R from other disambiguation)) ((R from predictable disambiguation)) ((R from unnecessary disambiguation))
Merge, duplicate & move	((R from draft namespace)) ((R from duplicated article)) ((R with history)) ((R from merge)) ((R from move)) ((R with old history))
To namespaces	((R from remote talk page)) ((R to category namespace)) ((R to draft namespace)) ((R to help namespace)) ((R to main namespace)) ((R to portal namespace)) ((R to project namespace)) ((R to talk page)) ((R to template namespace)) ((R to user namespace))

Media

General

((R from book)) ((R from film)) ((R from upcoming film)) ((R from journal)) ((R from meme)) ((R from radio program)) ((R from work)) ((R from creator)) ((R from radio frequency)) ((R from broadcast translator))
Music	((R from album)) ((R from lyric)) ((R from song)) ((R from cover song)) ((R from band name))
Television	((R from television episode)) ((R from television program))

Fiction

Comics

Miscellaneous

Related information	((R to article without mention)) ((R to decade)) ((R to century)) ((R to millennium)) ((R from city and state)) ((R from domain name)) ((R from second-level domain)) ((R from top-level domain)) ((R from gender)) ((R from legislation)) ((R from list topic)) ((R from member)) ((R from phrase)) ((R from quotation)) ((R to related topic)) ((R from related word)) ((R from relative)) ((R from spouse)) ((R from school)) ((R from subtopic)) ((R to subtopic)) ((R from gap in series)) ((R from team)) ((R from Unicode character)) ((R from Unicode code)) ((R from emoji))
With possibilities	((R with possibilities)) Category:Template redirects with possibilities ((R category with possibilities))
ISO codes	((R from ISO 4 abbreviation)) ((R from ISO 639 code)) ((R from ISO 3166 code)) ((R from ISO 4217 code)) ((R from ISO 15924 code))
Printworthiness	Printability ((R printworthy)) ((R unprintworthy)) e.g. ((R with possibilities)) is printworthy by default; ((R from misspelling)) is unprintworthy by default; some have no default
Protection	((R extended-protected)) ((R fully protected)) ((R semi-protected)) ((R template-protected)) ((R from high-use template))
Tools	Category:Miscellaneous redirects Protection policy ((R from template-generated category)) ((Redirect category shell)) ((Talk page of redirect))
Wikidata	((R with Wikidata item)) ((Soft redirect with Wikidata item))