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The hatnotes used for adding links between articles where more context is important.
{{Documentation subpage}}
Broadly speaking, a hatnote should answer a readers' question: Am I on the right page?
{{High-use| 369726 }}
{{lua|Module:Hatnote}}
 
This template produces formatted text, following the guideline for a '''[[WP:HATNOTE|Wikipedia hatnote]]'''.
:<code><nowiki>{{hatnote|Example hatnote text.}}</nowiki></code> &rarr;<br><!-- a construct to show hatnote as expected (using newline) -->
{{hatnote|Example hatnote text.}}
 
Broadly speaking, a hatnote should answer a reader's question (maybe preemptively): ''Am I on the right page?''
 
{{TOC limit}}
 
== Function ==
This template is primarily used to add a correctly formatted ''hatnote'' to a page. Often, but not always, this is a ''disambiguation link'' at the top of article pages. It places an HTML <code>div-</code> / <code>div</code> block around the text entered as its only argument, which provides standardized formatting (contents are indented and italicized in most displays); it also isolates the contained code to make sure that it is interpreted correctly.
 
This template is also used as the "meta-template" for additional specialized disambiguation link templates; see [[:Category:Hatnote templates]] for a list.
 
The template does not automatically create links of any kind. Links and other desired formatting must be explicitly added, using normal [[Wikipedia:Cheatsheet|Wikipedia markup]].
 
== Usage ==
 
; Basic usage:
&#123;{hatnote|''text''}}
Line 26 ⟶ 11:
 
== Parameters ==
 
This template accepts the following parameters:
* <code>1</code> –- the hatnote text (required)
* <code>extraclasses</code> –- any extra CSS classes to be added, for example, the {{tl|see also}} template adds the classes "{{para|extraclasses|boilerplate seealso}}".
* <code>selfref</code> –- If set to "yes", "y", "true" or "1", adds the CSS class "selfref". This is used to denote self-references to Wikipedia. See [[Template:Selfref]] for more information.
* <code>category</code> –- If set to "no", "n", "false", or "0", suppresses the error tracking category ([[:Category:Hatnote templates with errors]]). This has an effect only if the <!--"first-positional parameter", not "first positional parameter", if you value the readers' time ... but better yet --> leftmost parameter (the hatnote text) is omitted.
 
== Example ==
 
* <code><nowiki>{{hatnote|Example hatnote text}}</nowiki></code> → {{hatnote|Example hatnote text}}
 
== Typical types ==
{{T|Main}}, {{T|Further}} are very similar, but indicate either the primary page for a topic or more detailed related topic. They have a nearly identical set of parameters.
 
;{{T|Main}}: When an article is large, it often has a summary and a link to a main article. This template is used after the heading of the summary, to indicate a link to the subtopic article that has been summarized.
;{{T|Further}}: Used to link to articles containing further information on this topic.
;{{T|See also}}: Used to link to additional articles on related topics.
 
:;{{T|Main|Main Page}} →:{{Main|Main Page}}
:;{{T|Main|Main Page|Main Page}} →:{{Main|Main Page|Main Page}}
 
:*<code>1</code>, <code>2</code>, <code>3</code>, ... – the pages to link to. If no page names are specified, the current page name is used instead (without the namespace prefix). Categories and files are automatically escaped with the [[w:Help:Colon trick|colon trick]], and links to sections are automatically formatted as ''page § section'', rather than the MediaWiki default of ''page#section''.
:*<code>l1</code>, <code>l2</code>, <code>l3</code>, ... ''or''<code>label 1</code>, <code>label 2</code>, <code>label 3</code>, ... – optional labels for each of the pages to link to (this is for articles where a piped link would be used). Note that the extra parameters use a lower case 'L', for example, <code>l1</code>, <u>not</u> <code>L1</code>.
:*<code>selfref</code> – if set to "yes", "y", "true" or "1", adds the CSS class "selfref". This is used to denote self-references.
 
 
== Disambiguation ==
Templates such as {{T|About}} and {{T|For}} are to be used in cases where a disambiguation is not needed. In general, disambiguation pages should only be used for 4 or more titles that are mostly or entirely identical, except for a qualifier.
;{{T|About}}: Links the reader to other articles with similar titles or concepts that they may have been seeking instead. The template has several formats, including:
:;{{T|About|Use1}} →:{{About|}}
:;{{T|About|Use1|<nowiki/>|Main Page}} →:{{About|Use1||Main Page}}
:;{{T|About|Use1|<nowiki/>|Main Page|and|Main Page}} →:{{About|Use1||Main Page|and|Main Page}}
:;{{T|About|Use1|Use2|Main Page}} →:{{About|Use1|Use2|Main Page}}
:;{{T|About|Use1|Use2|Main Page|and|Main Page}} →:{{About|Use1|Use2|Main Page|and|Main Page}}
:;{{T|About|Use1|Use2|Main Page|other uses}} →:{{About|Use1|Use2|Main Page|other uses}}
 
Alternately, a <code>section=yes</code> parameter can be added to the {{T|About}} template for use at the top of a section. When using this parameter, the wording in the template changes to specify that it is being used in a section:
:;{{T|About|Use1|<nowiki>section=yes</nowiki>}} →:{{About|Use1|section=yes}}
:;{{T|About|Use1|<nowiki/>|Main Page|<nowiki>section=yes</nowiki>}} →:{{About|Use1||Main Page|section=yes}}
:;{{T|About|Use1|Use2|Main Page|<nowiki>section=yes</nowiki>}} →:{{About|Use1|Use2|Main Page|section=yes}}
:;{{T|About|Use1|Use2|Main Page|and|Main Page|<nowiki>section=yes</nowiki>}} →:{{About|Use1|Use2|Main Page|and|Main Page|section=yes}}
:;{{T|About|Use1|Use2|Main Page|other uses|<nowiki>section=yes</nowiki>}} →:{{About|Use1|Use2|Main Page|other uses|section=yes}}
 
A <var>text</var> option adds text to the end; note that this should be only used when truly necessary, and the other hatnote templates listed below don't suffice. This template also supports <var>selfref</var>.
 
;{{T|For}}: Provides links to up to four articles or disambiguation pages. It accepts zero to five parameters.
 
:;If used without parameters on a page named ''Foo'', the result is
::{{hatnote|For other uses, see [[:Foo (disambiguation)]].}}
:;The first parameter changes the hatnote itself and should be plain text, e.g. {{T|For|similar terms}} yields
::{{hatnote|For similar terms, see [[:Foo (disambiguation)]].}}
:;The second parameter is used to change the resultant link, e.g. {{T|For|similar terms|Main Page}} yields
::{{For|similar terms|Main Page}}
:;The third, fourth and fifth parameters are used to give one, two, or three supplementary links:
:*{{For|similar terms|Main Page|Main Page}}
:*{{For|similar terms|Main Page|Main Page|Main Page}}
:*{{For|similar terms|Main Page|Main Page|Main Page|Main Page}}
:the last being produced by e.g. {{T|For|similar terms|Main Page|Main Page|Main Page|Main Page}}.
 
== Errors ==
 
If no hatnote text is supplied, the template will output the following message:
* {{hatnote|category=no}}
Line 44 ⟶ 80:
# The hatnote text was specified, but that text contains an equals sign ("="). The equals sign has a special meaning in template code, and because of this it cannot be used in template parameters that do not specify a parameter name. For example, the template code <code><nowiki>{{hatnote|2+2=4}}</nowiki></code> will produce this error. To work around this, you can specify the parameter name explicitly by using <code>1=</code> before the hatnote text, like this: <code><nowiki>{{hatnote|1=2+2=4}}</nowiki></code>.
# You tried to access [[Module:Hatnote]] directly by using <code><nowiki>{{#invoke:hatnote|hatnote|</nowiki>''text''<nowiki>}}</nowiki></code>. Use of #invoke in this way has been disabled for performance reasons. Please use <code><nowiki>{{hatnote|</nowiki>''text''<nowiki>}}</nowiki></code> instead.
 
If you see this error message and are unsure of what to do, please post a message on [[Template talk:Hatnote]], and someone should be able to help you.
 
Pages that contain this error message are tracked in [[:Category:Hatnote templates with errors]].
 
 
== Technical details ==
This template uses the [[w:Help:Lua|Lua templating language]], and more information can be found [[w:c:dev:Global_Lua_Modules/Hatnote|on the Global Lua Module page]]. '''For a traditional wikitext version of this template, see [[w:c:templates:Template:Hatnote|Hatnote on Templates Wiki]]'''.
The HTML code produced by this template looks like this:
 
The HTML code produced by this template looks like this:
* {{tag|div|attribs=role="note" class="hatnote"|link=yes|content= hatnote text}}
 
The code is produced by [[Module:Hatnote]].
 
* <code><nowiki><div role="note" class="hatnote"></nowiki>''hatnote text''<nowiki></div></nowiki></code>
==See also==
* {{tl|For}}
 
<includeonly>[[Category:Notice templates]]</includeonly><noinclude>[[Category:Template documentation]]</noinclude>
{{Hatnote templates}}
{{Collapse top|[[Wikipedia:TemplateData|TemplateData]] documentation used by [[Wikipedia:VisualEditor|VisualEditor]] and other tools}}
{{TemplateData header|noheader=1}}
<templatedata>
{
"description": "Template for creating a standard Wikipedia hatnote. A hatnote is a short note placed at the top of an article to provide disambiguation of closely related terms or summarise a topic, explaining its boundaries.",
"params": {
"1": {
"label": "Text",
"description": "This field should contain the text that will be displayed in the hatnote.",
"type": "string",
"required": true
},
"extraclasses": {
"type": "string/line",
"label": "Extra classes",
"description": "Extra CSS classes to be added to the <div> tags surrounding the hatnote text."
},
"selfref": {
"type": "string/line",
"label": "Self reference",
"description": "Set to \"yes\" if the hatnote text is a self-reference to Wikipedia that would not make sense on mirrors or forks of the Wikipedia site. (E.g. \"For the Wikipedia Sandbox, see [[WP:SAND]]\".)"
},
"category": {
"label": "Category",
"description": "Set to \"no\", \"n\", \"false\", or \"0\" to suppresses the error tracking category (Category:Hatnote templates with errors). This only has an effect if the hatnote text is omitted."
}
}
}
</templatedata>
{{Collapse bottom}}<includeonly>{{Sandbox other||
[[Category:Hatnote templates| ]]
[[Category:Cross-reference templates]]
}}</includeonly>
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