{{/* stylesheet */ -}}
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{{ $cssFile := cond hugo.IsProduction "katex.min.css" "katex.css" -}}
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{{ $cssUrl := printf "https://unpkg.com/katex@latest/dist/%s" $cssFile -}}
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{{ with try (resources.GetRemote $cssUrl) -}}
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{{ with .Err -}}
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{{ errorf "Could not retrieve KaTeX css file from CDN. Reason: %s." . -}}
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{{ else with .Value -}}
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{{ $css := resources.Copy (printf "css/%s" $cssFile) . | resources.Fingerprint "sha512" -}}
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<link
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rel="stylesheet"
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href="{{- $css.RelPermalink -}}"
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integrity="{{- $css.Data.Integrity -}}"
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crossorigin="anonymous"
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/>
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{{ end -}}
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{{ end -}}
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{{/* font files */ -}}
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{{ $fontFiles := slice -}}
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{{ $data := dict -}}
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{{ $url := "https://unpkg.com/katex@latest/dist/fonts?meta" -}}
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{{ with try (resources.GetRemote $url) -}}
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{{ with .Err -}}
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{{ errorf "%s" . -}}
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{{ else with ( .Value | unmarshal ) -}}
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{{ range .files -}}
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{{ $fontFiles = $fontFiles | append .path -}}
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{{ end -}}
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{{ else -}}
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{{ errorf "Unable to get remote resource %q" $url -}}
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{{ end -}}
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{{ end -}}
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{{ range $fontFile := $fontFiles -}}
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{{ $fontUrl := (printf "https://unpkg.com/katex@latest%s" $fontFile) -}}
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{{ with try (resources.GetRemote $fontUrl) -}}
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{{ with .Err -}}
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{{ errorf "Could not retrieve KaTeX font file from CDN. Reason: %s." . -}}
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{{ else with .Value -}}
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{{ with resources.Copy (printf "css/fonts/%s" (replace $fontFile "/dist/fonts/" "")) . -}}
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{{ .Publish -}}
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{{ end -}}
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{{ end -}}
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{{ end -}}
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{{ end -}}
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