rizaldy.club/layouts/partials/textprocessing.html

{{ $content := .Content }}
{{ $page := .Page }}

{{/* Escape slashes for Latex to fix line breaks */}}
{{$latex := findRE "\\$\\$([^\\$]+)\\$\\$" $content}}
{{range $latex}}
  {{$fixed := replaceRE "\\\\(?: +|\\n)" "\\\\" .}}
  {{$content = replace $content . $fixed}}
{{end}}

{{/* Wikilinks */}}
{{$wikilinks := $content | findRE "!?\\[\\[\\S[^\\[\\]\\|]*(?:\\|[^\\[\\]]*)?\\S\\]\\]" }}
{{range $wikilinks}}
  {{if (hasPrefix . "!")}}
    {{$inner := . | strings.TrimPrefix "![[" | strings.TrimSuffix "]]" }}
    {{$split := split $inner "|"}}
    {{$path := index $split 0}}
    {{$reference := split $path "#"}}
    {{$title := index $reference 0}}
    {{$display := default $title (index $split 1)}}
    {{$img := printf "<img src=\"%s\" title=\"%s\">" $path $display}}
    {{$content = replace $content . $img}}
  {{else}}
    {{$inner := . | strings.TrimPrefix "[[" | strings.TrimSuffix "]]" }}
    {{$split := split $inner "|"}}
    {{$path := index $split 0}}
    {{$reference := split $path "#"}}
    {{$title := index $reference 0}}
    {{$block := default "" (index $reference 1)}}
    {{$block = strings.TrimRight "/" (cond (eq $block "") $block (printf "#%s" $block))}}
    {{$href := strings.TrimRight "/" ($page.GetPage $title).RelPermalink}}
    {{$display := default $title (index $split 1)}}
    {{if not $href}}
      {{$link := printf "<a class=\"internal-link broken\">%s</a>" $display}}
      {{$content = replace $content . $link}}
    {{else}}
      {{$fullhref := printf "%s%s" $href $block }}
      {{$link := printf "<a href=\"%s\" rel=\"noopener\" class=\"internal-link\" data-src=\"%s\">%s</a>" $fullhref $href $display}}
      {{$content = replace $content . $link}}
    {{end}}
  {{end}}
{{end}}
{{ $content | safeHTML }}