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title | description | date | publishdate | lastmod | categories | keywords | menu | weight | aliases | toc | ||||||||||||
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Links and Cross References | Shortcodes for creating links to documents. | 2017-02-01 | 2017-02-01 | 2017-03-31 |
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The ref
and relref
shortcode resolves the absolute or relative permalink given a path to a document.
Use ref
and relref
{{</* ref "document.md" */>}}
{{</* ref "#anchor" */>}}
{{</* ref "document.md#anchor" */>}}
{{</* ref "/blog/my-post" */>}}
{{</* ref "/blog/my-post.md" */>}}
{{</* relref "document.md" */>}}
{{</* relref "#anchor" */>}}
{{</* relref "document.md#anchor" */>}}
The single parameter to ref
is a string with a content documentname
(e.g., about.md
) with or without an appended in-document anchor
(#who
) without spaces. Hugo is flexible in how we search for documents, so the file suffix may be omitted.
Paths without a leading /
will first be tried resolved relative to the current page.
You will get an error if your document could not be uniquely resolved. The error behaviour can be configured, see below.
Link to another language version
Link to another language version of a document, you need to use this syntax:
{{</* relref path="document.md" lang="ja" */>}}
Get another Output Format
To link to a given Output Format of a document, you can use this syntax:
{{</* relref path="document.md" outputFormat="rss" */>}}
Anchors
When an anchor
is provided by itself, the current page’s unique identifier will be appended; when an anchor
is provided appended to documentname
, the found page's unique identifier will be appended:
{{</* relref "#anchors" */>}} => #anchors:9decaf7
The above examples render as follows for this very page as well as a reference to the "Content" heading in the Hugo docs features pageyoursite
{{</* relref "#who" */>}} => #who:9decaf7
{{</* relref "/blog/post.md#who" */>}} => /blog/post/#who:badcafe
More information about document unique identifiers and headings can be found [below]({{< ref "#hugo-heading-anchors" >}}).
Ref and RelRef Configuration
The behaviour can, since Hugo 0.45, be configured in config.toml
:
- refLinksErrorLevel ("ERROR")
- When using
ref
orrelref
to resolve page links and a link cannot resolved, it will be logged with this log level. Valid values areERROR
(default) orWARNING
. AnyERROR
will fail the build (exit -1
). - refLinksNotFoundURL
- URL to be used as a placeholder when a page reference cannot be found in
ref
orrelref
. Is used as-is.