mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-30 06:32:13 -05:00
88 lines
2.9 KiB
Markdown
88 lines
2.9 KiB
Markdown
---
|
||
title: Links and Cross References
|
||
description: Shortcodes for creating links to documents.
|
||
date: 2017-02-01
|
||
publishdate: 2017-02-01
|
||
lastmod: 2017-03-31
|
||
categories: [content management]
|
||
keywords: ["cross references","references", "anchors", "urls"]
|
||
menu:
|
||
docs:
|
||
parent: "content-management"
|
||
weight: 100
|
||
weight: 100 #rem
|
||
aliases: [/extras/crossreferences/]
|
||
toc: true
|
||
---
|
||
|
||
|
||
The `ref` and `relref` shortcode resolves the absolute or relative permalink given a path to a document.
|
||
|
||
## Use `ref` and `relref`
|
||
|
||
```go-html-template
|
||
{{</* 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 you 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:
|
||
|
||
```go-html-template
|
||
{{</* relref path="document.md" lang="jp" */>}}
|
||
```
|
||
|
||
### Get another Output Format
|
||
|
||
To link to a given Output Format of a document, you can use this syntax:
|
||
|
||
```go-html-template
|
||
{{</* 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:
|
||
|
||
```go-html-template
|
||
{{</* 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
|
||
|
||
```go-html-template
|
||
{{</* 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` or `relref` to resolve page links and a link cannot resolved, it will be logged with this logg level. Valid values are `ERROR` (default) or `WARNING`. Any `ERROR` will fail the build (`exit -1`).
|
||
|
||
refLinksNotFoundURL
|
||
: URL to be used as a placeholder when a page reference cannot be found in `ref` or `relref`. Is used as-is.
|
||
|
||
|
||
[lists]: /templates/lists/
|
||
[output formats]: /templates/output-formats/
|
||
[shortcode]: /content-management/shortcodes/
|
||
[bfext]: /content-management/formats/#blackfriday-extensions
|