From a894b5f70d5540f33a44bfd612753d57c2bf3cc8 Mon Sep 17 00:00:00 2001
From: Helmut Merz <helmutm@cy55.de>
Date: Sat, 8 Jan 2022 08:50:40 +0100
Subject: [PATCH] ilink shortcode with anchor for backlink

---
 layouts/shortcodes/ilink.html | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/layouts/shortcodes/ilink.html b/layouts/shortcodes/ilink.html
index 7f135d1..abf51ac 100644
--- a/layouts/shortcodes/ilink.html
+++ b/layouts/shortcodes/ilink.html
@@ -1,9 +1,14 @@
+{{- $this := $.Page -}}
 {{- $pages := where .Site.RegularPages "Params.pageid" "eq" (.Get "pid") -}}
 {{- $frag := .Get "id" -}}
 {{- $fragsep := "" -}}
 {{- if ne $frag "" -}}{{- $fragsep = "#" -}}{{- end -}}
 {{- $inner := .Inner -}}
 {{- range $pages -}}
-{{- $url := printf "%s%s%s" .Permalink $fragsep $frag -}}
-<a href="{{ $url }}">{{ or $inner .Title | markdownify }}</a>
+  {{- $url := printf "%s%s%s" .Permalink $fragsep $frag -}}
+  <a id="{{ .Params.pageid }}"
+     anchor="{{ .Params.pageid }}"
+     href="{{ $url }}">{{ or $inner .Title | markdownify }}</a>
+  {{- $backlink := printf "%s#%s" $this.Permalink .Params.pageid -}}
+  {{- .Scratch.Add "backlinks" (slice $this) -}}
 {{- end -}}