View source for Template:!/doc

{{Documentation subpage}}
<!-- DO NOT move the "pp-template" to the template page since the ! template should be as short as possible to save server load (to not break template inclusion limits). -->
{{high-risk|2,500,000+}}
__NOTOC__

== Usage ==

This is the {{t<noinclude>n</noinclude><includeonly>l</includeonly>|!}} meta-template. Its use is analogous to an [[escape character]].

This is an auxiliary template allowing the encoding of "<code>|</code>" within template parameters, because the pipe character is normally interpreted as a separator. This template is necessary if the character is used in wiki table syntax, or if the parameter is automatically wikilinked and you wish to use a pipe to specify different link text from the target page name. In other cases it is better to use "<code>&amp;#124;</code>". 

This template cannot be used for putting the character as text in a wiki table; in that case, again,  "<code>&amp;#124;</code>" can be used.

Note that no special template is needed for "<code>!</code>" (exclamation mark).

This is a [[WP:high-risk template|high-risk template]], and it usually cannot be [[Wikipedia:Substitution|substituted]] (see conditions for substing on [[#Substitution|the section below]]).

=== Substitution ===
It is possible to [[Wikipedia:Substitution|substitute]] <nowiki>{{!}}</nowiki> only if an unescaped "{{b|<code>|</code>}}" works as expected, i.e. after substituting the template containing <nowiki>{{!}}</nowiki>, or after eliminating an
[[mw:Help:Extension:ParserFunctions#.23if|#if]] containing <nowiki>{{!}}</nowiki>.

=== A simple example ===

The following template code for {{tl|Quotation}} using an ordinary pipe character,
* <code><nowiki>{{Quotation|It is not possible to use an ordinary pipe character | in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}</nowiki></code>

produces:
{{Quotation|It is not possible to use an ordinary pipe character | in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}

whereas this code using the <nowiki>{{!}}</nowiki> meta-template,
* <code><nowiki>{{Quotation|It is not possible to use an ordinary pipe character {{!}} in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}</nowiki></code>

produces:
{{Quotation|It is not possible to use an ordinary pipe character {{!}} in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}

== See also ==
* {{tl|!!}} creates ||
* {{tl|!-}} creates |-
* {{tl|-!}} creates &amp;nbsp;|
* {{tn|'}} and related
* [[Wikipedia:Conditional tables]]
* {{tl|pipe}} - Note that this one looks like {{tlf|!}} but has a very different meaning for the MediaWiki parser and thus has different functionality.
* {{tn|(}} creates {
* {{tn|((}} creates {{
* {{tn|)}} creates }
* {{tn|))}} creates }} 
* {{tl|!(}} creates [
* {{tl|)!}} creates ] 
* {{tl|(!}} creates {| 
* {{tl|!)}} creates |}  
* {{tl|1==}} creates =
* {{tl|Bar box}} — since {{tl|Bar}} redirects here

<includeonly>
[[Category:Template namespace templates|{{PAGENAME}}]]
[[Category:Wikipedia formatting and function templates|{{PAGENAME}}]]

<!-- These are the inter-language links for templates in other languages corresponding to [[Template:!]] -->
[[ar:قالب:!]]
[[as:Template:!]]
[[be-x-old:Шаблён:!]]
[[bg:Шаблон:!]]
[[bn:Template:!]]
[[cs:Šablona:!]]
[[da:Skabelon:!]]
[[de:Vorlage:!]]
[[dsb:Pśedłoga:!]]
[[et:Mall:!]]
[[es:Plantilla:!]]
[[fa:الگو:!]]
[[fr:Modèle:!]]
[[hsb:Předłoha:!]]
[[it:Template:!]]
[[ja:Template:!]]
[[ka:თარგი:!]]
[[ko:틀:!]]
[[ku:Şablon:!]]
[[la:Formula:!]]
[[myv:ЛопаПарцун:!]]
[[nl:Sjabloon:!]]
[[no:Mal:!]]
[[pap:Template:!]]
[[pl:Szablon:!]]
[[pt:Template:!]]
[[ru:Шаблон:!]]
[[sk:Šablóna:!]]
[[sl:Template:!]]
[[sr:Шаблон:!]]
[[vi:Tiêu bản:!]]
[[zh:Template:!]]
[[zh-yue:Template:!]]
[[he:תבנית:!]]
[[uk:Шаблон:!]]
[[fi:Malline:!]]
[[sv:Mall:!]]
[[simple:Template:!]]
[[ur:سانچہ:!]]
</includeonly><noinclude>

<!-- These are the inter-language links for the documentation subpage [[Template:!/doc]], not for the template itself. -->
[[ar:قالب:!/شرح]]
[[as:সাঁচ:!/doc]]
[[cs:Šablona:!/doc]]
[[de:Vorlage:!/Doku]]
[[es:Plantilla:!/doc]]
[[fa:الگو:!/توضیحات]]
[[fr:Modèle:!/Documentation]]
[[or:ଛାଞ୍ଚ:!/doc]]
[[ro:Format:!/doc]]
[[ru:Шаблон:!/doc]]
[[si:සැකිල්ල:!/doc]]
[[simple:Template:!/doc]]
</noinclude>