hugo-theme-relearn/layouts/partials/toc.html

{{- if eq .Kind "taxonomy" }}
<nav id="TableOfContents">
  <ul>
  {{- $lastCapital := "" }}
  {{- $terms := slice }}
  {{- range .Data.Terms }}
    {{- $terms = $terms | append (dict "Title" (default .Page.Data.Term .Page.Title) "Term" . )}}
  {{- end }}
  {{- range sort $terms ".Title" }}
    {{- $capital := substr .Title 0 1 | upper }}
    {{- $len := 0 }}
    {{- range .Term.Pages }}
      {{- $c:=""}}{{/* count pages of term */}}
      {{- if and .Title .RelPermalink (or (ne (.Scratch.Get "relearnIsHiddenStem") true) (ne .Site.Params.disableTagHiddenPages true) ) }}
        {{- $len = add $len 1 }}
      {{- end }}
    {{- end }}
    {{- if $len }}
      {{- if ne $lastCapital $capital }}
    <li><a href="#{{ $capital | plainify | anchorize }}">{{ $capital }}</a></li>
      {{- end }}
      {{- $lastCapital = $capital }}
    {{- end }}
  {{- end }}
  </ul>
</nav>
{{- else if eq .Kind "term" }}
<nav id="TableOfContents">
  <ul>
  {{- $lastCapital := "" }}
  {{- $pages := slice }}
  {{- range .Pages }}
    {{- if and .Title .RelPermalink (or (ne (.Scratch.Get "relearnIsHiddenStem") true) (ne .Site.Params.disableTagHiddenPages true) ) }}
      {{- $pages = $pages | append (dict "Title" .Title "Page" . )}}
    {{- end }}
  {{- end }}
  {{- range sort $pages ".Title" }}
    {{- $capital := substr .Title 0 1 | upper }}
    {{- if ne $lastCapital $capital }}
    <li><a href="#{{ $capital | plainify | anchorize }}">{{ $capital }}</a></li>
    {{- end }}
    {{- $lastCapital = $capital }}
  {{- end }}
  </ul>
</nav>
{{- else }}
  {{- .TableOfContents }}
{{- end }}