Adding non-case-sensitive alphabetical sorting incl testing

_extensions/acronyms/sort_acronyms.lua

@@ -16,12 +16,16 @@
 local sorting_strategies = {}
 
 
--- Sort acronyms by their shortname, in alphabetical order.
+-- Sort acronyms by their shortname, in case-sensitive alphabetical order.
 sorting_strategies["alphabetical"] = function(acronym1, acronym2)
     -- TODO: check that this works with UTF-8 characters
     return acronym1.shortname < acronym2.shortname
 end
 
+-- Sort acronyms by their shortname, in non-case-sensitive alphabetical order.
+sorting_strategies["alphabetical_ignore_case"] = function(acronym1, acronym2)
+    return acronym1.shortname:upper() < acronym2.shortname:upper()
+end
 
 -- Sort acronyms by their definition order (first to last).
 sorting_strategies["initial"] = function(acronym1, acronym2)

tests/20-sorting-alphabetical-ignore-case/Readme.md

@@ -0,0 +1,3 @@
+This test shows the "alphabetical_ignore_case" sorting option.
+
+The List Of Acronyms is sorted based on their key, in a non-case-sensitive alphabetical order.

tests/20-sorting-alphabetical-ignore-case/expected.md

@@ -0,0 +1,20 @@
+# List Of Acronyms {#acronyms_HEADER_LOA .loa}
+
+[aA]{#acronyms_aA}
+:   alphabetically
+
+[H]{#acronyms_H}
+:   handle
+
+[iQt]{#acronyms_iQt}
+:   inside-Quarto
+
+[Qt]{#acronyms_Qt}
+:   Quarto
+
+# Introduction {#intro}
+
+This [Quarto (Qt)](#acronyms_Qt) extension adds the ability to automatically [handle (H)](#acronyms_H) 
+ [inside-Quarto (iQt)](#acronyms_iQt) acronyms.
+
+Would love to be able to sort [alphabetically (aA)](#acronyms_aA), independent of letter size.

tests/20-sorting-alphabetical-ignore-case/input.qmd

@@ -0,0 +1,23 @@
+---
+output:
+  acronymsdown::md_format
+acronyms:
+  sorting: alphabetical_ignore_case
+  include_unused: false
+  keys:
+    - shortname: Qt
+      longname: Quarto
+    - shortname: iQt
+      longname: inside-Quarto
+    - shortname: aA
+      longname: alphabetically
+    - shortname: H
+      longname: handle
+---
+
+# Introduction {#intro}
+
+This \acr{Qt} extension adds the ability to automatically \acr{handle} 
+ \acr{iQt} acronyms.
+
+Would love to be able to sort \acr{aA}, independent of letter size.