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toc.html (4075B)

      1 {{- $headers := findRE "<h[1-6].*?>(.|\n])+?</h[1-6]>" .Content -}}
      2 {{- $has_headers := ge (len $headers) 1 -}}
      3 {{- if $has_headers -}}
      4 <details class="toc" {{if (.Param "TocOpen") }} open{{ end }}>
      5     <summary accesskey="c" title="(Alt + C)">
      6         <span class="title">{{- i18n "toc" | default "Table of Contents" }}</span>
      7     </summary>
      8 
      9     <div class="inner">
     10         {{- if (.Param "UseHugoToc") }}
     11         {{- .TableOfContents -}}
     12         {{- else }}
     13         {{- $largest := 6 -}}
     14         {{- range $headers -}}
     15         {{- $headerLevel := index (findRE "[1-6]" . 1) 0 -}}
     16         {{- $headerLevel := len (seq $headerLevel) -}}
     17         {{- if lt $headerLevel $largest -}}
     18         {{- $largest = $headerLevel -}}
     19         {{- end -}}
     20         {{- end -}}
     21 
     22         {{- $firstHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers 0) 1) 0)) -}}
     23 
     24         {{- $.Scratch.Set "bareul" slice -}}
     25         <ul>
     26             {{- range seq (sub $firstHeaderLevel $largest) -}}
     27             <ul>
     28                 {{- $.Scratch.Add "bareul" (sub (add $largest .) 1) -}}
     29                 {{- end -}}
     30                 {{- range $i, $header := $headers -}}
     31                 {{- $headerLevel := index (findRE "[1-6]" . 1) 0 -}}
     32                 {{- $headerLevel := len (seq $headerLevel) -}}
     33 
     34                 {{/* get id="xyz" */}}
     35                 {{- $id := index (findRE "(id=\"(.*?)\")" $header 9) 0 }}
     36 
     37                 {{- /* strip id="" to leave xyz, no way to get regex capturing groups in hugo */ -}}
     38                 {{- $cleanedID := replace (replace $id "id=\"" "") "\"" "" }}
     39                 {{- $header := replaceRE "<h[1-6].*?>((.|\n])+?)</h[1-6]>" "$1" $header -}}
     40 
     41                 {{- if ne $i 0 -}}
     42                 {{- $prevHeaderLevel := index (findRE "[1-6]" (index $headers (sub $i 1)) 1) 0 -}}
     43                 {{- $prevHeaderLevel := len (seq $prevHeaderLevel) -}}
     44                 {{- if gt $headerLevel $prevHeaderLevel -}}
     45                 {{- range seq $prevHeaderLevel (sub $headerLevel 1) -}}
     46                 <ul>
     47                     {{/* the first should not be recorded */}}
     48                     {{- if ne $prevHeaderLevel . -}}
     49                     {{- $.Scratch.Add "bareul" . -}}
     50                     {{- end -}}
     51                     {{- end -}}
     52                     {{- else -}}
     53                     </li>
     54                     {{- if lt $headerLevel $prevHeaderLevel -}}
     55                     {{- range seq (sub $prevHeaderLevel 1) -1 $headerLevel -}}
     56                     {{- if in ($.Scratch.Get "bareul") . -}}
     57                 </ul>
     58                 {{/* manually do pop item */}}
     59                 {{- $tmp := $.Scratch.Get "bareul" -}}
     60                 {{- $.Scratch.Delete "bareul" -}}
     61                 {{- $.Scratch.Set "bareul" slice}}
     62                 {{- range seq (sub (len $tmp) 1) -}}
     63                 {{- $.Scratch.Add "bareul" (index $tmp (sub . 1)) -}}
     64                 {{- end -}}
     65                 {{- else -}}
     66             </ul>
     67             </li>
     68             {{- end -}}
     69             {{- end -}}
     70             {{- end -}}
     71             {{- end }}
     72             <li>
     73                 <a href="#{{- $cleanedID -}}" aria-label="{{- $header | plainify | safeHTML -}}">{{- $header | plainify | safeHTML -}}</a>
     74                 {{- else }}
     75             <li>
     76                 <a href="#{{- $cleanedID -}}" aria-label="{{- $header | plainify | safeHTML -}}">{{- $header | plainify | safeHTML -}}</a>
     77                 {{- end -}}
     78                 {{- end -}}
     79                 <!-- {{- $firstHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers 0) 1) 0)) -}} -->
     80                 {{- $firstHeaderLevel := $largest }}
     81                 {{- $lastHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers (sub (len $headers) 1)) 1) 0)) }}
     82             </li>
     83             {{- range seq (sub $lastHeaderLevel $firstHeaderLevel) -}}
     84             {{- if in ($.Scratch.Get "bareul") (add . $firstHeaderLevel) }}
     85         </ul>
     86         {{- else }}
     87         </ul>
     88         </li>
     89         {{- end -}}
     90         {{- end }}
     91         </ul>
     92         {{- end }}
     93     </div>
     94 </details>
     95 {{- end }}