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This is the {{tl|main other}} meta-template.

This template helps other templates detect if they are on a main space (article) page or some "other" type of page.

===Basic usage===
This template usually takes two parameters, like this:
: {{tc|main other&#32;|''result if in mainspace''&#32;|''result if elsewhere''}}</pre>

If the template is on a main space (article) page, it will return this:
: {{main other |demospace=main |''result if in mainspace'' |''result if elsewhere''}}

If the template is on any other page, it will return this:
: {{main other |''result if in mainspace'' |''result if elsewhere''}}

A typical usage case could be to make it so that a template only adds a category when on an article. Thus not adding other pages that just show the template. Like this:
: {{tcpl|main other&#32;|<nowiki>[[Category:Some article maintenance category]]</nowiki>}}
Note that guidelines do not support categorization in templates.

Or to warn that a template should not be used on other pages:
: {{tcpl|main other&#32;|&#32;|This template should only be used in articles.}}

Note that in the first case above the "other" parameter was not used, and in the second example the "main" parameter was left empty.

===Demospace===
For testing and demonstration purposes, this template can take a parameter named '''demospace'''. 
* If it has the value '''main''' it returns the article text.
* It if has the value '''other''' or any other value such as the name of some other namespace it returns the other pages text.
* If the parameter is empty or undefined, the actual page type determines the result.

Like this:
: {{tcpl|main other&#32;|''result if in mainspace''&#32;|''result if elsewhere''&#32;|demospace{{=}}main}}

No matter on what kind of page the code above is used, it will return: {{main other |''result if in mainspace'' |''result if elsewhere'' |demospace=main}}

You can make it so your template also understands the '''demospace''' parameter. That means you can demonstrate the different appearances of your template in the documentation for your template:
: {{tcpl|main other&#32;|''result if in mainspace''&#32;|''result if elsewhere''&#32;|<nowiki>demospace={{{demospace|}}}</nowiki>&#32;}}

===Technical details===
This template detects article "Talk:" pages as type '''other'''.

This template works like {{tl|main talk other}}. For more examples and technical details, see the documentation there.

===See also===
{{Namespace detect see also}}

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