This page is aredirect.The followingcategories are used to track and monitor this redirect:
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 | This template is used onapproximately 3,700,000 pages, or roughly 6% of all pages. To avoid major disruption and server load, any changes should be tested in the template's/sandbox or/testcases subpages, or in your ownuser subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on thetalk page before implementing them. |
 | This template shouldnot be used by bots, or by any automated or semi-automated process without specifying parameters. It should also not be used without specifying parameters unless the redirect is manually categorized. This template may serve as alearning tool for editors who wish to understand how to categorize redirects.Only editors who intend to revisit the redirect to determine the appropriate redirect category templates (rcats) should use this template without parameters or with an empty first parameter.(more below) |
 | This template shouldnot besubstituted nor should this template and most redirect category (rcat) templates be used to tagsoft redirects. Two exceptions are{{Soft redirect with Wikidata item}}, which can be used on all soft redirects, and{{R category with possibilities}}, which can only be used on soft redirects in the category namespace. |
This template is similar to{{WikiProject banner shell}} in that it may be used to add one or more appropriate redirect category (rcat) templates, along with their parameters, to redirects. Additionally, this templateautomatically senses, describes, categorizes and changesprotection levels when appropriate. A third important function is to help editors learn more about redirect categorization by use of themanifold sort. For more information see the page below and themain rcatindex.
As with theThis is a redirect template, this template is based on aproposal to standardizeredirect templates (rcats). Its basic purpose is to simplify the process of tagging and categorizing redirects.
Like theThis is a redirect template, this shell template is also able to help newer contributors learn the redirect category system. Details of this part of the purpose of this shell template may be found in theWhen used alone section below.
Protection levels are automatically detected by this template by use of{{pp-protected}} and{{pp-move}}. When edit protection or move protection (or both) is applied to a redirect that has been tagged with this template, the protection level is automatically detected, and the redirect will be tagged with a protection rcat and sorted to the appropriate protection-related category(ies). When protection is altered or removed, then the protection-related rcats and category(ies) will also be (automatically) changed or removed from the redirect.
This template can categorize and display the text (with parameters) of any number of rcats that are needed (usually from one to seven).
[Mbox note 1][Printworthiness note 1]
Used by itself with no parameters, for example,{{Redirect category shell}} (and its alias{{Rcat shell}}), the template will appear as it does at the top of this page, and the redirect will populateCategory:Miscellaneous redirects. That category will also be populated if the first parameter is left empty while rcats occupy the second parameter. This is useful when an editor adds rcats and yet feels unsure that there may be at least one other rcat with category that may be used to tag the redirect. Monitors of theMiscellaneous redirects category will then help decide if another rcat(s) is needed. Then the empty first parameter may be excluded by removing either the first or second pipe. That will remove the redirect fromCategory:Miscellaneous redirects.See below for more information.
This template may hold any number of different redirect category (rcat) templates, usually from one to seven. The choices for editors are listed atWikipedia:Template index/Redirect pages both alphabetically and by function. Any of those rcats may be used either with their full template name, e.g.,R from alternative language, or with an alias (shortcut redirect), which may be found in each rcat'sdocumentation.
An unnamed parameter,|1=, has been introduced in this template and works as follows:
{{Redirect category shell|1={{rcat 1}}{{rcat 2}}{{rcat 3}}{{rcat N}}}}
1= may be omitted:{{Redirect category shell|{{rcat 1}}{{rcat 2}}{{rcat 3}}{{rcat N}}}}
As with all templates that have unnamed (numbered) parameters, the numbers and equal signs may be omitted.
"N" represents the highest number of rcats that can be used in this template, and at this point the only limit would be any wiki markup ceiling that may exist. Usually, from one to seven rcats suffice; however, more rcats can be used if required.
The actual sequence of rcats is left to editors – there is no priority as to which rcat should be "first" and which rcats should "follow" in any particular order.
A second unnamed parameter,|2=, has also been introduced. This gives this template the same "help" functionality that is used in theThis is a redirect template. If the first parameter is left "empty", thenCategory:Miscellaneous redirects will be populated:
{{Redirect category shell|1=|2={{rcat 1}}{{rcat 2}}{{rcat N}}}}
{{Redirect category shell||{{rcat 1}}{{rcat 2}}{{rcat N}}}}
Note the double pipe after the word "shell" above, which indicates an empty first parameter. Editors who monitor theMiscellaneous redirects category will come to the redirect and check, add or remove rcats as needed.
Also, when used by itself this template will appear as it does at the top of this page and populate theMiscellaneous redirects category:
{{Redirect category shell}}
This template may be added to a redirect page in the following manner:
#REDIRECT[[(target page name)]]{{Redirect category shell||{{R from short name}}{{R unprintworthy}}}}
#REDIRECT[[(target page name)]]{{Redirect category shell||{{R from short name}}{{R unprintworthy}}}}
Generally for good readability on the edit screen, this template is placed beginning on the third line of that screen as follows:
Line 1: #REDIRECT[[(target page name)]]
Line 2:(please leave this line blank for emphasis and ease of reading by editors)Line 3:{{Redirect category shell|{{R from move}}{{R to section}}{{R printworthy}}}}
In addition to the unnamed|1= and|2= parameters, there is a "hatnote" parameter,|h=, which provides an italicized TOP note when needed. For example:
{{Redirect category shell|h=This code has not been confirmed as an[[International Air Transport Association airport code|IATA]] airport code.|{{R from airport code}}}}
...uses the rcat{{R from airport code}} and produces:
This page is aredirect.The followingcategories are used to track and monitor this redirect:
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|h= parameter. If this pipe is omitted, very unusual results will be seen when your edit is previewed or saved. Be sure to include that pipe at the very end of the text if the|h= parameter is used to form a hatnote.In addition to this template's ability to act as a shell template for rcats, it accepts all of the parameters that rcats accept. Rcat parameters, when needed, will work in this template as follows:
{{Redirect category shell|{{R from plural|printworthy}}}}
This subdues theUnprintworthy redirects category to which{{R from plural}} defaults and populates thePrintworthy redirects category instead. The position an rcat holds will have no effect on the parameters of other rcats that are used to tag a redirect:
{{Redirect category shell|{{R from move}}{{R from modification}}{{R from alternative name}}{{R from alternative language|en|es}}{{R for convenience}}{{R from plural|printworthy}}{{R printworthy}}}}
In the above example,{{R from plural}} is the sixth rcat, and its first parameter is used to change from "unprintworthy" to "printworthy".{{R from alternative language}}) holds the 4th position, and its first parameter is used to house theISO 639 language code of the source language, in this case en forEnglish. Its second parameter houses the language code for the targeted page, in this case es for theSpanish language. It does not matter if the relative position of these rcats changes for any reason, their individual parameters will continue to be effective.
If more rcat parameters are used, then they work the same way. For example, if a redirect exists that is a misspelling of a title, it can be tagged with{{R from misspelling}} in the following manner:
{{Redirect category shell|{{R from misspelling|(correct spelling if needed)|printworthy}}{{R printworthy}}}}
In this case, the rcat's|1= parameter is the correct spelling (used only if the target of the redirect isnot the correct spelling). The rcat's|2= parameter can be used to change from the default "unprintworthy" categorization. Some misspellings may be helpful in a printed version ofWikipedia, so the second parameter inR from misspelling above is used to subdue its default "unprintworthy" category sort, and the redirect will populateCategory:Printworthy redirects instead. In this shell template, the order of the rcats will not affect the rcats' parameters. If an editor checks the page history and finds that the above redirect is also the result of a page move and inserts{{R from move}} at the top of the order:
{{Redirect category shell|{{R from move}}{{R from misspelling|(correct spelling)|printworthy}}{{R printworthy}}}}
...the parameters of theR from misspelling rcat template will not be affected, as they may be when used in theThis is a redirect template.
An example of a "printworthy misspelling" can be found at template{{R from misspelling}}.
Another example:
{{Redirect category shell|{{R from alternative language|ja|es}}{{R unprintworthy}}}}
The above code will sort the redirect into three categories:
|1=ja),|2=es) andSee the lists ofISO 639-1 andISO 639-2 codes for two- and three-letter language codes that can be used this way. See alsoWikipedia:Template messages/Redirect language codes for common codes that are already used on redirects.
This template is designed to help contributors who are unfamiliar with categorizing redirects by enabling them to sort redirects into the monitoredMiscellaneous redirects category. Do not hesitate to use this important function to help with sorting redirects to correct and appropriate categories.
There are two ways to sort a redirect into theMiscellaneous redirects category. When this template is used without any rcats, it will perform the miscellaneous sort:
{{Redirect category shell}}...
This page is aredirect.The followingcategories are used to track and monitor this redirect:
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Also, if one or more rcats are known, but an editor is unsure that there might be one or moreother rcats that are needed, then leave the first parameter blank (type two pipes together →||):
{{Redirect category shell||{{R from subtopic}}{{R printworthy}}}}
This page is aredirect.The followingcategories are used to track and monitor this redirect:
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Monitors of theMiscellaneous redirects category will check the redirect, add other rcats if needed and then remove the empty first parameter.
Template:Redirect category shell/Comparison shows the difference in the appearance of text between when individual rcats are used and when this template is used.
This template may also carry and hold other templates within it. Even the{{DEFAULTSORT}} magic word and asort key may be used either inside this template or below it. Another template commonly used within theRedirect category shell template is{{Italic title}} and its shortcut to format titles in italics. Some rcats such as{{R from book}} and{{R from film}} automatically format the redirect names in italics. Any appropriate template may be used within this shell template in the following manner:
{{Redirect category shell|{{R from move}}{{R from alternative name}}{{Italic title}}{{DEFAULTSORT:Hobbit, The}}}}
Mbox note
#REDIRECT[[(target page)]]{{Redirect category shell||{{R unprintworthy}}}}
#REDIRECT[[(target page)]]{{Redirect category shell||{{R unprintworthy}}}}
Printworthiness note
{{Redirect category shell|{{R from ambiguous term}}}}
...then the hidden categories populated will beRedirects from ambiguous pages,Unprintworthy redirects and any appropriate protection categories. These will appear at the bottom of the redirect page only to registered users who are logged in and who have set their preferences to see hidden categories. The mbox that will appear to all readers would look like:
This page is aredirect.The followingcategories are used to track and monitor this redirect:
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To show the printability or printworthiness information in the mbox, then the redirect must be tagged with either the printworthy or unprintworthy rcat as in the following example:
{{Redirect category shell|{{R from ambiguous term}}{{R unprintworthy}}}}
...which produces:
This page is aredirect.The followingcategories are used to track and monitor this redirect:
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Only then will the printability,printworthy orunprintworthy, be described within this template's mbox on the redirect page.
TemplateData for Redirect category shell
This template may be used to add one or more appropriate redirect category (rcat) templates, along with their parameters, to redirects. Additionally, this template automatically senses, describes, categorizes and changes protection levels when appropriate.
| Parameter | Description | Type | Status | |
|---|---|---|---|---|
| Redirect categories | 1 | 1 or more redirect category templates.
| Content | suggested |
| Redirect categories (more needed) | 2 | Same as Redirect categories, except that the redirect is also added to Category:Miscellaneous redirects. | Content | optional |
| Hatnote | h | A hatnote to display above the redirect categories. | Line | optional |
| No category | nocat | Don't add this redirect to Category:Miscellaneous redirects, even if Redirect categories has been left empty. | Boolean | optional |
| Category | category | The category to add this redirect to if the Redirect categories parameter is empty. Defaults to Category:Miscellaneous redirects.
| Line | optional |
