1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
|
---
title: Shortcodes
linktitle:
description: Shortcodes are simple snippets inside your content files calling built-in or custom templates.
godocref:
date: 2017-02-01
publishdate: 2017-02-01
lastmod: 2019-11-07
menu:
docs:
parent: "content-management"
weight: 35
weight: 35 #rem
categories: [content management]
keywords: [markdown,content,shortcodes]
draft: false
aliases: [/extras/shortcodes/]
testparam: "Hugo Rocks!"
toc: true
---
## What a Shortcode is
Hugo loves Markdown because of its simple content format, but there are times when Markdown falls short. Often, content authors are forced to add raw HTML (e.g., video `<iframe>`'s) to Markdown content. We think this contradicts the beautiful simplicity of Markdown's syntax.
Hugo created **shortcodes** to circumvent these limitations.
A shortcode is a simple snippet inside a content file that Hugo will render using a predefined template. Note that shortcodes will not work in template files. If you need the type of drop-in functionality that shortcodes provide but in a template, you most likely want a [partial template][partials] instead.
In addition to cleaner Markdown, shortcodes can be updated any time to reflect new classes, techniques, or standards. At the point of site generation, Hugo shortcodes will easily merge in your changes. You avoid a possibly complicated search and replace operation.
## Use Shortcodes
{{< youtube 2xkNJL4gJ9E >}}
In your content files, a shortcode can be called by calling `{{%/* shortcodename parameters */%}}`. Shortcode parameters are space delimited, and parameters with internal spaces can be quoted.
The first word in the shortcode declaration is always the name of the shortcode. Parameters follow the name. Depending upon how the shortcode is defined, the parameters may be named, positional, or both, although you can't mix parameter types in a single call. The format for named parameters models that of HTML with the format `name="value"`.
Some shortcodes use or require closing shortcodes. Again like HTML, the opening and closing shortcodes match (name only) with the closing declaration, which is prepended with a slash.
Here are two examples of paired shortcodes:
```
{{%/* mdshortcode */%}}Stuff to `process` in the *center*.{{%/* /mdshortcode */%}}
```
```
{{</* highlight go */>}} A bunch of code here {{</* /highlight */>}}
```
The examples above use two different delimiters, the difference being the `%` character in the first and the `<>` characters in the second.
### Shortcodes with raw string parameters
{{< new-in "0.64.1" >}}
You can pass multiple lines as parameters to a shortcode by using raw string literals:
```
{{</* myshortcode `This is some <b>HTML</b>,
and a new line with a "quoted string".` */>}}
```
### Shortcodes with Markdown
In Hugo `0.55` we changed how the `%` delimiter works. Shortcodes using the `%` as the outer-most delimiter will now be fully rendered when sent to the content renderer (e.g. Blackfriday for Markdown), meaning they can be part of the generated table of contents, footnotes, etc.
If you want the old behavior, you can put the following line in the start of your shortcode template:
```
{{ $_hugo_config := `{ "version": 1 }` }}
```
### Shortcodes Without Markdown
The `<` character indicates that the shortcode's inner content does *not* need further rendering. Often shortcodes without markdown include internal HTML:
```
{{</* myshortcode */>}}<p>Hello <strong>World!</strong></p>{{</* /myshortcode */>}}
```
### Nested Shortcodes
You can call shortcodes within other shortcodes by creating your own templates that leverage the `.Parent` variable. `.Parent` allows you to check the context in which the shortcode is being called. See [Shortcode templates][sctemps].
## Use Hugo's Built-in Shortcodes
Hugo ships with a set of predefined shortcodes that represent very common usage. These shortcodes are provided for author convenience and to keep your markdown content clean.
### `figure`
`figure` is an extension of the image syntax in markdown, which does not provide a shorthand for the more semantic [HTML5 `<figure>` element][figureelement].
The `figure` shortcode can use the following named parameters:
src
: URL of the image to be displayed.
link
: If the image needs to be hyperlinked, URL of the destination.
target
: Optional `target` attribute for the URL if `link` parameter is set.
rel
: Optional `rel` attribute for the URL if `link` parameter is set.
alt
: Alternate text for the image if the image cannot be displayed.
title
: Image title.
caption
: Image caption. Markdown within the value of `caption` will be rendered.
class
: `class` attribute of the HTML `figure` tag.
height
: `height` attribute of the image.
width
: `width` attribute of the image.
attr
: Image attribution text. Markdown within the value of `attr` will be rendered.
attrlink
: If the attribution text needs to be hyperlinked, URL of the destination.
#### Example `figure` Input
{{< code file="figure-input-example.md" >}}
{{</* figure src="/media/spf13.jpg" title="Steve Francia" */>}}
{{< /code >}}
#### Example `figure` Output
{{< output file="figure-output-example.html" >}}
<figure>
<img src="/media/spf13.jpg" />
<figcaption>
<h4>Steve Francia</h4>
</figcaption>
</figure>
{{< /output >}}
### `gist`
Bloggers often want to include GitHub gists when writing posts. Let's suppose we want to use the [gist at the following url][examplegist]:
```
https://gist.github.com/spf13/7896402
```
We can embed the gist in our content via username and gist ID pulled from the URL:
```
{{</* gist spf13 7896402 */>}}
```
#### Example `gist` Input
If the gist contains several files and you want to quote just one of them, you can pass the filename (quoted) as an optional third argument:
{{< code file="gist-input.md" >}}
{{</* gist spf13 7896402 "img.html" */>}}
{{< /code >}}
#### Example `gist` Output
{{< output file="gist-output.html" >}}
{{< gist spf13 7896402 >}}
{{< /output >}}
#### Example `gist` Display
To demonstrate the remarkably efficiency of Hugo's shortcode feature, we have embedded the `spf13` `gist` example in this page. The following simulates the experience for visitors to your website. Naturally, the final display will be contingent on your stylesheets and surrounding markup.
{{< gist spf13 7896402 >}}
### `highlight`
This shortcode will convert the source code provided into syntax-highlighted HTML. Read more on [highlighting](/tools/syntax-highlighting/). `highlight` takes exactly one required `language` parameter and requires a closing shortcode.
#### Example `highlight` Input
{{< code file="content/tutorials/learn-html.md" >}}
{{</* highlight html */>}}
<section id="main">
<div>
<h1 id="title">{{ .Title }}</h1>
{{ range .Pages }}
{{ .Render "summary"}}
{{ end }}
</div>
</section>
{{</* /highlight */>}}
{{< /code >}}
#### Example `highlight` Output
The `highlight` shortcode example above would produce the following HTML when the site is rendered:
{{< output file="tutorials/learn-html/index.html" >}}
<span style="color: #f92672"><section</span> <span style="color: #a6e22e">id=</span><span style="color: #e6db74">"main"</span><span style="color: #f92672">></span>
<span style="color: #f92672"><div></span>
<span style="color: #f92672"><h1</span> <span style="color: #a6e22e">id=</span><span style="color: #e6db74">"title"</span><span style="color: #f92672">></span>{{ .Title }}<span style="color: #f92672"></h1></span>
{{ range .Pages }}
{{ .Render "summary"}}
{{ end }}
<span style="color: #f92672"></div></span>
<span style="color: #f92672"></section></span>
{{< /output >}}
{{% note "More on Syntax Highlighting" %}}
To see even more options for adding syntax-highlighted code blocks to your website, see [Syntax Highlighting in Developer Tools](/tools/syntax-highlighting/).
{{% /note %}}
### `instagram`
If you'd like to embed a photo from [Instagram][], you only need the photo's ID. You can discern an Instagram photo ID from the URL:
```
https://www.instagram.com/p/BWNjjyYFxVx/
```
#### Example `instagram` Input
{{< code file="instagram-input.md" >}}
{{</* instagram BWNjjyYFxVx */>}}
{{< /code >}}
You also have the option to hide the caption:
{{< code file="instagram-input-hide-caption.md" >}}
{{</* instagram BWNjjyYFxVx hidecaption */>}}
{{< /code >}}
#### Example `instagram` Output
By adding the preceding `hidecaption` example, the following HTML will be added to your rendered website's markup:
{{< output file="instagram-hide-caption-output.html" >}}
{{< instagram BWNjjyYFxVx hidecaption >}}
{{< /output >}}
#### Example `instagram` Display
Using the preceding `instagram` with `hidecaption` example above, the following simulates the displayed experience for visitors to your website. Naturally, the final display will be contingent on your stylesheets and surrounding markup.
{{< instagram BWNjjyYFxVx hidecaption >}}
{{% note %}}
The `instagram`-shortcode refers an endpoint of Instagram's API, that's deprecated since October 24th, 2020. Thus, no images can be fetched from this API endpoint, resulting in an error when the `instagram`-shortcode is used. For more information please have a look at GitHub issue [#7879](https://github.com/gohugoio/hugo/issues/7879).
{{% /note %}}
### `param`
Gets a value from the current `Page's` params set in front matter, with a fall back to the site param value. It will log an `ERROR` if the param with the given key could not be found in either.
```bash
{{</* param testparam */>}}
```
Since `testparam` is a param defined in front matter of this page with the value `Hugo Rocks!`, the above will print:
{{< param testparam >}}
To access deeply nested params, use "dot syntax", e.g:
```bash
{{</* param "my.nested.param" */>}}
```
### `ref` and `relref`
These shortcodes will look up the pages by their relative path (e.g., `blog/post.md`) or their logical name (`post.md`) and return the permalink (`ref`) or relative permalink (`relref`) for the found page.
`ref` and `relref` also make it possible to make fragmentary links that work for the header links generated by Hugo.
{{% note "More on Cross References" %}}
Read a more extensive description of `ref` and `relref` in the [cross references](/content-management/cross-references/) documentation.
{{% /note %}}
`ref` and `relref` take exactly one required parameter of _reference_, quoted and in position `0`.
#### Example `ref` and `relref` Input
```
[Neat]({{</* ref "blog/neat.md" */>}})
[Who]({{</* relref "about.md#who" */>}})
```
#### Example `ref` and `relref` Output
Assuming that standard Hugo pretty URLs are turned on.
```
<a href="/blog/neat">Neat</a>
<a href="/about/#who:c28654c202e73453784cfd2c5ab356c0">Who</a>
```
### `tweet`
You want to include a single tweet into your blog post? Everything you need is the URL of the tweet:
```
https://twitter.com/spf13/status/877500564405444608
```
#### Example `tweet` Input
Pass the tweet's ID from the URL as a parameter to the `tweet` shortcode:
{{< code file="example-tweet-input.md" >}}
{{</* tweet 877500564405444608 */>}}
{{< /code >}}
#### Example `tweet` Output
Using the preceding `tweet` example, the following HTML will be added to your rendered website's markup:
{{< output file="example-tweet-output.html" >}}
{{< tweet 877500564405444608 >}}
{{< /output >}}
#### Example `tweet` Display
Using the preceding `tweet` example, the following simulates the displayed experience for visitors to your website. Naturally, the final display will be contingent on your stylesheets and surrounding markup.
{{< tweet 877500564405444608 >}}
### `vimeo`
Adding a video from [Vimeo][] is equivalent to the [YouTube Input shortcode][].
```
https://vimeo.com/channels/staffpicks/146022717
```
#### Example `vimeo` Input
Extract the ID from the video's URL and pass it to the `vimeo` shortcode:
{{< code file="example-vimeo-input.md" >}}
{{</* vimeo 146022717 */>}}
{{< /code >}}
#### Example `vimeo` Output
Using the preceding `vimeo` example, the following HTML will be added to your rendered website's markup:
{{< output file="example-vimeo-output.html" >}}
{{< vimeo 146022717 >}}
{{< /output >}}
{{% tip %}}
If you want to further customize the visual styling of the YouTube or Vimeo output, add a `class` named parameter when calling the shortcode. The new `class` will be added to the `<div>` that wraps the `<iframe>` *and* will remove the inline styles. Note that you will need to call the `id` as a named parameter as well. You can also give the vimeo video a descriptive title with `title`.
```
{{</* vimeo id="146022717" class="my-vimeo-wrapper-class" title="My vimeo video" */>}}
```
{{% /tip %}}
#### Example `vimeo` Display
Using the preceding `vimeo` example, the following simulates the displayed experience for visitors to your website. Naturally, the final display will be contingent on your stylesheets and surrounding markup.
{{< vimeo 146022717 >}}
### `youtube`
The `youtube` shortcode embeds a responsive video player for [YouTube videos][]. Only the ID of the video is required, e.g.:
```
https://www.youtube.com/watch?v=w7Ft2ymGmfc
```
#### Example `youtube` Input
Copy the YouTube video ID that follows `v=` in the video's URL and pass it to the `youtube` shortcode:
{{< code file="example-youtube-input.md" >}}
{{</* youtube w7Ft2ymGmfc */>}}
{{< /code >}}
Furthermore, you can automatically start playback of the embedded video by setting the `autoplay` parameter to `true`. Remember that you can't mix named and unnamed parameters, so you'll need to assign the yet unnamed video id to the parameter `id`:
{{< code file="example-youtube-input-with-autoplay.md" >}}
{{</* youtube id="w7Ft2ymGmfc" autoplay="true" */>}}
{{< /code >}}
For [accessibility reasons](https://dequeuniversity.com/tips/provide-iframe-titles), it's best to provide a title for your YouTube video. You can do this using the shortcode by providing a `title` parameter. If no title is provided, a default of "YouTube Video" will be used.
{{< code file="example-youtube-input-with-title.md" >}}
{{</* youtube id="w7Ft2ymGmfc" title="A New Hugo Site in Under Two Minutes" */>}}
{{< /code >}}
#### Example `youtube` Output
Using the preceding `youtube` example, the following HTML will be added to your rendered website's markup:
{{< code file="example-youtube-output.html" >}}
{{< youtube id="w7Ft2ymGmfc" autoplay="true" >}}
{{< /code >}}
#### Example `youtube` Display
Using the preceding `youtube` example (without `autoplay="true"`), the following simulates the displayed experience for visitors to your website. Naturally, the final display will be contingent on your stylesheets and surrounding markup. The video is also include in the [Quick Start of the Hugo documentation][quickstart].
{{< youtube w7Ft2ymGmfc >}}
## Privacy Config
To learn how to configure your Hugo site to meet the new EU privacy regulation, see [Hugo and the GDPR][].
## Create Custom Shortcodes
To learn more about creating custom shortcodes, see the [shortcode template documentation][].
[`figure` shortcode]: #figure
[contentmanagementsection]: /content-management/formats/
[examplegist]: https://gist.github.com/spf13/7896402
[figureelement]: https://html5doctor.com/the-figure-figcaption-elements/ "An article from HTML5 doctor discussing the fig and figcaption elements."
[Hugo and the GDPR]: /about/hugo-and-gdpr/
[Instagram]: https://www.instagram.com/
[pagevariables]: /variables/page/
[partials]: /templates/partials/
[Pygments]: https://pygments.org/
[quickstart]: /getting-started/quick-start/
[sctemps]: /templates/shortcode-templates/
[scvars]: /variables/shortcodes/
[shortcode template documentation]: /templates/shortcode-templates/
[templatessection]: /templates/
[Vimeo]: https://vimeo.com/
[YouTube Videos]: https://www.youtube.com/
[YouTube Input shortcode]: #youtube
|