Template:Namespace detect/doc

This is a documentation subpage for Template:Namespace detect (see that page for the template itself). It contains usage information, categories, interlanguage links and other content that is not part of the original template page.

This is the {{namespace detect}} meta-template.

It helps other templates detect what type of page they are on.

It detects and groups all the different namespaces used on Wikipedia into several types:

main = Main/article space, as in normal Wikipedia articles.

talk = Any talk space, such as page names that start with "Talk:", "User talk:", "File talk:" and so on.

user, wikipedia, file, mediawiki, template, help, category, portal and book = The other namespaces except the talk pages.

other = Any namespaces that were not specified as a parameter to the template. See explanation below.

For backwards compatibility this template also understands the old name image for file. But using image is now deprecated.

Note! For most usage cases it might be better to use the simpler namespace detection templates. (See the see also section below.) Since this template is more prone to human errors such as misspelling the parameter names.

Usage

This template takes one or more parameters named after the different page types as listed above. Like this:

{{namespace detect
| main  = Article text
| talk  = Talk page text
| other = Other pages text
}}

If the template is on a main (article) page, it will return this:

Article text

If the template is on any other page than an article or a talk page it will return this:

Other pages text

The example above made the template return something for all page types. But if we don't use the other parameter or leave it empty then it will not return anything for the other page types. Like this:

{{namespace detect
| file     = File page text
| category = Category page text
| other    =
}}

On any pages other than file and category pages the code above will render nothing.

By using an empty parameter you can make it so the template doesn't render anything for some specific page type. Like this:

{{namespace detect
| main  = 
| other = Other pages text
}}

The code above will render nothing when on mainspace (article) pages, but will return this when on other pages:

Other pages text

Parameters

List of all parameters:

{{namespace detect
| main  = 
...
| other =
| demospace = {{{demospace|}}} / main / talk / user / 
              wikipedia / file / mediawiki / template / 
              help / category / portal / book / other
| page  = {{{page|}}} / User:Example
}}

Note: Empty values to the "main" ... "book" parameters have special meaning.