vanilla-hugo/layouts/partials/highlightgroup.html

{{- $highlightGroupAttrs := (printf "data-base-path=\"%s\" data-file-path=\"%v\"" .basePath .path) -}}
{{- if (or .firstLine .lastLine) -}}
{{- $highlightGroupAttrs = add $highlightGroupAttrs (printf " data-first-line=\"%v\" data-last-line=\"%v\"" .firstLine .lastLine) -}}
{{- end -}}
{{- if eq (lower .language) "agda" -}}
{{- $highlightGroupAttrs = add $highlightGroupAttrs " data-agda-block" -}}
{{- end -}}
{{- with .offset -}}
{{- $highlightGroupAttrs = add $highlightGroupAttrs (printf " data-source-offset=\"%v\"" .) -}}
{{- end -}}
{{ partial "group.html" (dict "url" .url "path" .path "comment" .comment "content" (highlight .code .language .opts) "attrs" $highlightGroupAttrs) }}