the style guideline about using colon in articles ????,
MOS:COLON
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The
colon trick
is a method of providing a link to a
category
,
image
or
interwiki link
without adding the page to the category, displaying the image or adding the interwiki link to the
interlanguage links
. It also allows for linking to pages with titles beginning with a recognized external link prefix, such as
http://
or
//Hus
.
By adding a
colon
just inside the opening double square brackets of the link, the default behaviour of the
MediaWiki software
will be bypassed. It will appear as a conventional
wikilink
.
[[Category:Help]]
would list this page in Category:Help, but
[[:Category:Help]]
will produce a link to
Category:Help
.
[[File:Wikipedia-logo.png]]
would display an image, but
[[:File:Wikipedia-logo.png]]
will produce a link to
File:Wikipedia-logo.png
.
[[pt:Internet]]
will create an
interlanguage link
, but
[[:pt:Internet]]
will produce an interwiki link to
pt:Internet
(in the Portuguese Wikipedia).
[[//Hus]]
will produce an (invalid) external link wrapped in brackets ("[
[1]
]"), but
[[://Hus]]
will produce a link to
//Hus
.
[[Computer]]
links to the
Computer
article; adding a colon like
[[:Computer]]
can be done, but the colon is unneeded and makes no difference.
A colon can also be used to transclude a page in mainspace, rather than template space. For example,
{{
The Beatles
}}
will transclude
Template:The Beatles
, but
{{
:The?Beatles
}}
will transclude the mainspace article
The Beatles
. This is useful when the mainspace article has been specially formatted to be transcluded in other articles, by using <noinclude> or <includeonly> tags to indicate the portion that should be included when the article is transcluded.
Normally, linking to a
user page
in an
edit summary
sends a notification to the user. A colon can be used to escape this behaviour. For example, the edit summary "
corrected?typo?by?[[User:Example]]
" will ping
User:Example
, but "
corrected?typo?by?[[:User:Example]]
" will not.