hugo/docs/layouts/shortcodes/code.html

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{{ $file := .Get "file" }}
{{ $codeLang := "" }}
{{ $suffix := findRE "(\\.[^.]+)$" $file 1 }}
{{ with $suffix }}
{{ $codeLang = (index . 0 | strings.TrimPrefix ".") }}
{{ end }}
{{ with .Get "codeLang" }}{{ $codeLang = . }}{{ end }}
{{ if eq $codeLang "html" }}
{{ $codeLang = "go-html-template" }}
{{ end }}
<div class="code relative" id="{{ $file | urlize }}">
{{- with $file -}}
<div class="filename san-serif f6 dib lh-solid pl2 pv2">{{ . }}</div>
{{- end -}}
{{ if ne (.Get "copy") "false" }}
<button class="needs-js copy bg-accent-color-dark f6 absolute top-0 right-0 lh-solid hover-bg-primary-color-dark bn white ph3 pv2" title="Copy this code to your clipboard." data-clipboard-action="copy" aria-label="copy button">
</button>
{{/* Functionality located within filesaver.js The copy here is located in the css with .copy class so it can be replaced with JS on success */}}
{{ end }}
<div class="code-copy-content nt3" {{ with .Get "download" }}id="{{ . }}"{{ end }}>
{{ $inner := trim .Inner "\n" | safeHTML }}
{{ if .Get "nocode" }}{{ $inner }}{{ else }}{{ with $codeLang }}{{ highlight $inner . "" }}{{ else }}<pre><code>{{ $inner }}</code></pre>{{ end }}{{ end }}
</div>
</div>