| 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 }} |