{{ if .Page.Params.mermaid -}} <div class="mermaid{{ with .Get "class" }} {{ . }}{{ end }}"> {{ $data := replaceRE "(^\\s+```)" "" .Inner -}} {{ replaceRE "(```\\s+$)" "" $data -}} </div> {{ else -}} {{ errorf "Failed to process mermaid shortcode: %s. Set mermaid to true in page front matter." .Position }} {{ end -}}