hugo-geekblog/layouts/shortcodes/katex.html

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<!-- prettier-ignore-start -->
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{{ if not (.Page.Scratch.Get "katex") }}
<!-- Include katex only first time -->
<link
rel="stylesheet"
href="{{ index (index .Site.Data.assets "katex.css") "src" | relURL }}"
/>
<script defer src="{{ index (index .Site.Data.assets "katex.js") "src" | relURL }}"></script>
{{ .Page.Scratch.Set "katex" true }}
{{ end }}
<!-- prettier-ignore-end -->
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<span class="gblog-katex {{ with .Get "class" }}{{ . }}{{ end }}">
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{{ cond (in .Params "display") "\\[" "\\(" -}}
{{- trim .Inner "\n" -}}
{{- cond (in .Params "display") "\\]" "\\)" -}}
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</span>
{{- /* Drop trailing newlines */ -}}