Template:!!/doc: Difference between revisions

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Latest revision as of 14:57, 4 January 2024

This is a documentation subpage for Template:!!
It may contain usage information, categories and other content that is not part of the original template page.

This template is used on 230,000+ pages.
To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.

This is an auxiliary template that allows one to encode "||" (two pipes or vertical bars) within template parameters. If this does not need to be interpreted as wikitext (i.e. table cell separators), it is better to use "||". However the "||" delimiter for a wikitable has to be escaped by a template if it is used within a template.

Notes

There is usually no such problem with "!!" (exclamation marks). This problem only affects "||" (vertical bars) in conjunction with the m:Help:Parameter default mechanism within tables. However, in table rows starting with "!" there can be problems with "!!" being interpreted as a cell separator. Try replacing it with "!!".

This template cannot be substituted.

Parameters

Escapes double pipe characters within template parameters

Template parameters
Parameter		Description	Type	Status
No parameters specified

@@ Line 1: / Line 1: @@
 {{Documentation subpage}}
-{{high-use|57,000+}}
+{{High-risk|250,000+}}
-This is an auxiliary [[Help:Template|template]] that allows one to encode "<code>||</code>" (two pipes or [[vertical bar]]s) within template parameters.  If it is '''unnecessary''' to get a "<code>||</code>", it is better to use "<code>&amp;#124;&amp;#124;</code>".  However the "<code>||</code>" delimiter for a [[Wikipedia:How to use tables|Wiki table]] has to be escaped by a template if it is used within a template.
+This is an auxiliary [[Help:Template|template]] that allows one to encode "<code>||</code>" (two pipes or [[vertical bar]]s) within template parameters. If this does not need to be interpreted as wikitext (i.e. table cell separators), it is better to use "<code>&amp;#124;&amp;#124;</code>".  However the "<code>||</code>" delimiter for a [[Wikipedia:Manual of Style/Tables|wikitable]] has to be [[:Category:Character-substitution templates|escaped by a template]] if it is used within a template.
-==Notes==
+== Notes ==
 There is usually no such problem with "<code>!!</code>" (exclamation marks).  This problem only affects "<code>||</code>" (vertical bars) in conjunction with the [[m:Help:Parameter default]] mechanism within tables. However, in table rows starting with "<code>!</code>" there can be problems with "<code>!!</code>" being interpreted as a cell separator. Try replacing it with "<code>&amp;#33;&amp;#33;</code>".
-This template cannot be [[Wikipedia:Template substitution|substituted]].
+This template cannot be [[Wikipedia:Substitution|substituted]].
+== Parameters ==
+<TemplateData>{
-==See also==
+  "description": "Escapes double pipe characters within template parameters",
-*[[Template:!]]
+  "params": {}
-*[[Template:!-]]
+}</TemplateData>
-*[[Wikipedia:Qif conditionals]]
-*{{tim|!}}
-<includeonly>
-<!-- ADD CATEGORIES BELOW THIS LINE -->
-[[Category:Template namespace templates|{{PAGENAME}}]]
-[[Category:Wikipedia formatting and function templates|{{PAGENAME}}]]
+== See also ==
-<!-- ADD INTERWIKIS BELOW THIS LINE -->
+{{Escape template list}}
-</includeonly><noinclude>
+*[[m:Help:Template#A parameter value containing a pipe character]]
+*[[Help:Conditional tables]]
+<includeonly>{{Sandbox other||
-</noinclude>
+[[Category:Character templates]]
+[[Category:Templates with partial table wikitext]]
+[[Category:Template namespace templates]]
+}}</includeonly>

Template call (m for magic word)	Output (delayed interpretation as wikimarkup)	HTML alternative (never interpreted as wikimarkup)
`{{!}}` (m)	\|	\| or {{pipe}}
`{{=}}` (m)	=	=
`{{!!}}`	\|\|	\|\|
`{{!(}}`	[	[
`{{)!}}`	]	]
`{{!((}}`	[[	[[
`{{))!}}`	]]	]]
`{{(}}`	{	{
`{{)}}`	}	}
`{{((}}`	{{	{{
`{{))}}`	}}	}}
`{{(((}}`	{{{	{{{
`{{)))}}`	}}}	}}}
`{{(!}}`	{\|	{\|
`{{!+}}`	\|+	\|+
`{{!-}}`	\|-	\|-
`{{!)}}`	\|}	\|}