{{- $currentPage := .Page -}}
{{- $text := .Text -}}
{{- $destination := .Destination -}}
{{- $u := urls.Parse $destination -}}
{{- if not $u.Scheme -}}
  {{- $page := site.GetPage $destination -}}
  {{- if $page -}}
    {{- $backlinks := $page.Store.Get "backlinks" | default slice -}}
    {{- $backlinks := $backlinks|append $currentPage.RelPermalink -}}
    {{- $page.Store.Set "backlinks" ($backlinks|uniq) -}}
    {{- if not $text -}}
      {{- $text = $page.LinkTitle -}}
    {{- end -}}
    <span class="supt">{{- $page.Section -}}⁄</span><a href="{{- $page.RelPermalink -}}" {{- with $page.Title }} title="{{ . }}"{{ end -}}>{{- $text -}}</a>
  {{- else if hasPrefix $destination "/library/" -}}
    {{- $bib := strings.TrimPrefix "/library/" $destination -}}
    {{- $b := index site.Data.books.catalog $bib -}}
    {{- if not $b.title -}}
      {{- with $currentPage.File -}}
        {{- warnf "In /%s bib:%s not found." .Path $bib -}}
      {{- end -}}
    {{- end -}}
    {{- if not $text -}}
      {{- $text = $b.title|default "" -}}
    {{- end -}}
    <span class="supt">library⁄</span><a href="/library/BROWSE_LIBRARY.html#/books/{{- $bib -}}">{{- $text -}}</a>
  {{- else -}}
      {{- with $currentPage.File -}}
        {{- warnf "In /%s broken link: %s" .Path $destination -}}
      {{- end -}}
  {{- end -}}
{{- else -}}
  {{- if hasPrefix $destination "http" -}}
  <span class="supt">www⁄</span>
  {{- end -}}<a href="{{ $destination | safeURL }}"{{- with .Title }} title="{{ . }}"{{ end -}}{{- if $u.IsAbs }} rel="external"{{ end -}}>{{- if .Text }}{{ .Text }}{{- else -}}{{- $destination -}}{{- end -}}</a>
{{- end -}}
{{- /* chomp trailing newline */ -}}