From a07d00e66d25147b45ceff5f9689ff98dd182390 Mon Sep 17 00:00:00 2001
From: Bauke <me@bauke.xyz>
Date: Tue, 16 Jan 2024 12:40:02 +0100
Subject: [PATCH] Add the localize utility function.

---
 utilities/localize.typ | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 utilities/localize.typ

diff --git a/utilities/localize.typ b/utilities/localize.typ
new file mode 100644
index 0000000..bee79b2
--- /dev/null
+++ b/utilities/localize.typ
@@ -0,0 +1,24 @@
+// Get the localized item of a given key inside a data dictionary, using the
+// provided language.
+#let localize(data, key, language) = {
+  // If the key is directly available in the data then it hasn't been localized.
+  if key in data {
+    return data.at(key)
+  }
+
+  // Then check for the key with the wanted language appended to it.
+  let key_with_language = key + "_" + language
+  if key_with_language in data {
+    return data.at(key_with_language)
+  }
+
+  // If a locale dictionary exists in the data, then run this function again
+  // using that dictionary for the same key and language.
+  if "locale" in data {
+    return localize(data.locale, key, language)
+  }
+
+  // And if the key nor locale exists in any way then panic, as we won't have
+  // any text to return.
+  panic("Data does not contain key in any localized way: " + key, data)
+}