From 1196329333e8633d57e938d697bb60b06c3370e7772e9f79737e87492a2b19f9 Mon Sep 17 00:00:00 2001
From: Nicholas Johnson <mail@nicholasjohnson.ch>
Date: Fri, 22 Nov 2024 00:00:00 +0000
Subject: Map ref numbers to their superscripts using dict

This removes the extra iterations over reference numbers caused by using
the replace function.
---
 layouts/_default/single.gmi | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

(limited to 'layouts/_default')

diff --git a/layouts/_default/single.gmi b/layouts/_default/single.gmi
index a2f517d..7666f8c 100644
--- a/layouts/_default/single.gmi
+++ b/layouts/_default/single.gmi
@@ -51,19 +51,25 @@
       {{ $ref_text := $chunk_ref.text -}}
 
       {{/* create superscript of $ref_index */ -}}
-      {{ $ref_index := replace $ref_index "0" "⁰" -}}
-      {{ $ref_index =  replace $ref_index "1" "¹" -}}
-      {{ $ref_index =  replace $ref_index "2" "²" -}}
-      {{ $ref_index =  replace $ref_index "3" "³" -}}
-      {{ $ref_index =  replace $ref_index "4" "⁴" -}}
-      {{ $ref_index =  replace $ref_index "5" "⁵" -}}
-      {{ $ref_index =  replace $ref_index "6" "⁶" -}}
-      {{ $ref_index =  replace $ref_index "7" "⁷" -}}
-      {{ $ref_index =  replace $ref_index "8" "⁸" -}}
-      {{ $ref_index =  replace $ref_index "9" "⁹" -}}
+      {{ $superscript_map := dict
+        "0" "⁰"
+        "1" "¹"
+        "2" "²"
+        "3" "³"
+        "4" "⁴"
+        "5" "⁵"
+        "6" "⁶"
+        "7" "⁷"
+        "8" "⁸"
+        "9" "⁹"
+      -}}
+      {{ $ref_superscript := "" -}}
+      {{ range (split $ref_index "") -}}
+        {{ $ref_superscript = print $ref_superscript (index $superscript_map .) -}}
+      {{ end -}}
 
       {{/* replace Markdown links with link text and their superscripted reference numbers */ -}}
-      {{ $rendered_text = replace $rendered_text (index . 0) (print $ref_text $ref_index) 1 -}}
+      {{ $rendered_text = replace $rendered_text (index . 0) (print $ref_text $ref_superscript) 1 -}}
 
     {{ end -}}
 
-- 
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