Editing Help:Footnotes (section)

==Footnotes: embedding references==
{{shortcut|WP:REFNEST}}

{{See also|WP:Nesting footnotes}}

[[Help:Explanatory notes|Explanatory notes]] may need to be referenced. Because of limitations in the {{cite.php}} software, reference tags cannot be nested; that is, a set of {{tag|ref}} tags cannot be placed inside another pair of {{tag|ref}} tags. Attempting to do so will result in a cite error.

The templates {{tl|r}} and {{tl|refn}} can be used to nest references. The markup is:

:{{tlx|refn|2=group=''group''|3=name=''name''|4=''content''}} or
:{{tlx|r|2=group=''group''|3=name=''name''|4=refn=''content''}} or
:{{tlx|r|2=g=''group''|3=n=''name''|4=r=''content''}} (shorter)
''name'' and ''group'' being optional parameters. The ''content'' may include {{tag|ref|o}} tags or another {{tl|r}} template.

The other templates listed below in [[#Footnotes: predefined groups|Predefined groups]] are variants of {{tl|refn}} that include a styled group and have a matching styled reference list template.

Examples:

===Using {{tl|refn}}===
{{markup
|<nowiki>The quick brown fox jumps over the lazy dog.{{refn|group=nb|A footnote.<ref>A reference for the footnote.</ref>}}

==Notes==
{{reflist|group=nb}}

==References==
{{reflist}}
</nowiki>
|The quick brown fox jumps over the lazy dog.{{refn|group=nb|A footnote.<ref>A reference for the footnote.</ref>}}

{{fake heading|sub=3|Notes}}
{{reflist|group=nb}}

{{fake heading|sub=3|References}}
{{reflist}}
}}

===Using {{tl|r}}===
{{markup
|<nowiki>The quick brown fox jumps over the lazy dog.{{r|g=nb|r=A footnote.{{r|r=A reference for the footnote.}}}}

==Notes==
{{reflist|group=nb}}

==References==
{{reflist}}
</nowiki>
|The quick brown fox jumps over the lazy dog.{{r|g=nb|r=A footnote.{{r|r=A reference for the footnote.}}}}

{{fake heading|sub=3|Notes}}
{{reflist|group=nb}}

{{fake heading|sub=3|References}}
{{reflist}}
}}

The use of the magic word <code>#tag:ref</code> is valid, but the sequence of parameters is invariant and nonintuitive. {{tl|r}} as well as {{tl|refn}} and its variants use this markup internally.

:<code>&#123;&#123;#tag:ref|<var>refcontent</var>|group=<var>groupname</var>|name=<var>name</var>}}</code>
{{anchor|Grouping footnotes}}