Index long pages using hugo templates

[phtj]

I also found you previous answer to another post, which works well for my case

Splitting .Content into sections based on header level

layouts/_default/_markup/render-heading.html {{ printf "<!-- end-chunk -->" | safeHTML }} {{ printf "<!-- begin-chunk data-anchor=%q data-heading=%q data-level=%q data-permalink=%q data-title=%q -->" .Anchor .Text (string .Level) .Page.Permalink .Page.Title | safeHTML }} <h{{ .Level }} id="{{ .Anchor | safeURL }}">{{ .Text | safeHTML }}</h{{ .Level }}> template {{ $chunks := slice }} {{ range (findRE `(?s)<!-- begin-chunk.+?(?:<!-- end-chunk -->|$)` .Content) }} {{ $anchor := replaceRE `(?…