show TOC in sidebar if frontmatter param toc == true

.gitignore

@@ -2,3 +2,4 @@ public
 resources
 themes
 static/img
+.hugo_build.lock

i18n/de.yaml

@@ -1,5 +1,5 @@
 #
-# de.yaml 2021-11-24
+# de.yaml 2022-01-06
 #
 
 about:
@@ -74,6 +74,9 @@ sibling-articles:
 Teaser:
   other: Hintergrund
 
+toc:
+  other: Inhaltsverzeichnis
+
 topics:
   other: Themen
 

i18n/en.yaml

@@ -1,5 +1,5 @@
 #
-# en.yaml 2021-11-24
+# en.yaml 2022-01-06
 #
 
 about:
@@ -75,6 +75,9 @@ sibling-articles:
 Teaser:
   other: Teaser
 
+toc:
+  other: Contents
+
 topics:
   other: Topics
 

layouts/partials/sidebar.html

@@ -69,4 +69,15 @@
             (dict "related" $related "header" $header "id" "articles-in-section") -}}
     {{- end }}
 
+    {{ if .Params.toc -}}
+    <div class="card mt-3">
+      <div class="card-header">
+        <h4 class="card-text">{{i18n "toc"}}</h4>
+      </div>
+      <div class="card-body">
+        {{ .TableOfContents }}
+      </div>
+    </div>
+    {{ end -}}
+
 </div>

layouts/shortcodes/ilink.html

@@ -1,5 +1,9 @@
 {{- $pages := where .Site.RegularPages "Params.pageid" "eq" (.Get "pid") -}}
+{{- $frag := .Get "id" -}}
+{{- $fragsep := "" -}}
+{{- if ne $frag "" -}}{{- $fragsep = "#" -}}{{- end -}}
 {{- $inner := .Inner -}}
 {{- range $pages -}}
-<a href="{{ .Permalink }}">{{ or $inner .Title | markdownify }}</a>
+{{- $url := printf "%s%s%s" .Permalink $fragsep $frag -}}
+<a href="{{ $url }}">{{ or $inner .Title | markdownify }}</a>
 {{- end -}}