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toc(partial): generate toc for h1 - h6

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previously: h1-h4
This commit is contained in:
Aditya Telange 2020-10-04 18:52:14 +05:30
parent 35788daad1
commit a34bcbd74c
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GPG Key ID: 82E844EF3DA99E77
1 changed files with 8 additions and 8 deletions
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16
layouts/partials/toc.html
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@ -1,17 +1,17 @@
{{- $headers := findRE "<h[1-4].*?>(.|\n])+?</h[1-4]>" .Content -}} {{- $headers := findRE "<h[1-6].*?>(.|\n])+?</h[1-6]>" .Content -}}
{{- $has_headers := ge (len $headers) 1 -}} {{- $has_headers := ge (len $headers) 1 -}}
{{- if $has_headers -}} {{- if $has_headers -}}
{{- $largest := 6 -}} {{- $largest := 6 -}}
{{- range $headers -}} {{- range $headers -}}
{{- $headerLevel := index (findRE "[1-4]" . 1) 0 -}} {{- $headerLevel := index (findRE "[1-6]" . 1) 0 -}}
{{- $headerLevel := len (seq $headerLevel) -}} {{- $headerLevel := len (seq $headerLevel) -}}
{{- if lt $headerLevel $largest -}} {{- if lt $headerLevel $largest -}}
{{- $largest = $headerLevel -}} {{- $largest = $headerLevel -}}
{{- end -}} {{- end -}}
{{- end -}} {{- end -}}
{{- $firstHeaderLevel := len (seq (index (findRE "[1-4]" (index $headers 0) 1) 0)) -}} {{- $firstHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers 0) 1) 0)) -}}
{{- $.Scratch.Set "bareul" slice -}} {{- $.Scratch.Set "bareul" slice -}}
<ul> <ul>
@ -20,7 +20,7 @@
{{- $.Scratch.Add "bareul" (sub (add $largest .) 1) -}} {{- $.Scratch.Add "bareul" (sub (add $largest .) 1) -}}
{{- end -}} {{- end -}}
{{- range $i, $header := $headers -}} {{- range $i, $header := $headers -}}
{{- $headerLevel := index (findRE "[1-4]" . 1) 0 -}} {{- $headerLevel := index (findRE "[1-6]" . 1) 0 -}}
{{- $headerLevel := len (seq $headerLevel) -}} {{- $headerLevel := len (seq $headerLevel) -}}
{{/* get id="xyz" */}} {{/* get id="xyz" */}}
@ -28,10 +28,10 @@
{{- /* strip id="" to leave xyz, no way to get regex capturing groups in hugo */ -}} {{- /* strip id="" to leave xyz, no way to get regex capturing groups in hugo */ -}}
{{- $cleanedID := replace (replace $id "id=\"" "") "\"" "" }} {{- $cleanedID := replace (replace $id "id=\"" "") "\"" "" }}
{{- $header := replaceRE "<h[1-4].*?>((.|\n])+?)</h[1-4]>" "$1" $header -}} {{- $header := replaceRE "<h[1-6].*?>((.|\n])+?)</h[1-6]>" "$1" $header -}}
{{- if ne $i 0 -}} {{- if ne $i 0 -}}
{{- $prevHeaderLevel := index (findRE "[1-4]" (index $headers (sub $i 1)) 1) 0 -}} {{- $prevHeaderLevel := index (findRE "[1-6]" (index $headers (sub $i 1)) 1) 0 -}}
{{- $prevHeaderLevel := len (seq $prevHeaderLevel) -}} {{- $prevHeaderLevel := len (seq $prevHeaderLevel) -}}
{{- if gt $headerLevel $prevHeaderLevel -}} {{- if gt $headerLevel $prevHeaderLevel -}}
{{- range seq $prevHeaderLevel (sub $headerLevel 1) -}} {{- range seq $prevHeaderLevel (sub $headerLevel 1) -}}
@ -68,9 +68,9 @@
<a href="#{{- $cleanedID -}}">{{- $header | safeHTML -}}</a> <a href="#{{- $cleanedID -}}">{{- $header | safeHTML -}}</a>
{{- end -}} {{- end -}}
{{- end -}} {{- end -}}
<!-- {{- $firstHeaderLevel := len (seq (index (findRE "[1-4]" (index $headers 0) 1) 0)) -}} --> <!-- {{- $firstHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers 0) 1) 0)) -}} -->
{{- $firstHeaderLevel := $largest }} {{- $firstHeaderLevel := $largest }}
{{- $lastHeaderLevel := len (seq (index (findRE "[1-4]" (index $headers (sub (len $headers) 1)) 1) 0)) -}} {{- $lastHeaderLevel := len (seq (index (findRE "[1-6]" (index $headers (sub (len $headers) 1)) 1) 0)) -}}
</li> </li>
{{- range seq (sub $lastHeaderLevel $firstHeaderLevel) -}} {{- range seq (sub $lastHeaderLevel $firstHeaderLevel) -}}
{{- if in ($.Scratch.Get "bareul") (add . $firstHeaderLevel) -}} {{- if in ($.Scratch.Get "bareul") (add . $firstHeaderLevel) -}}