add classic template styling

template/abbreviations.typ

@@ -0,0 +1,23 @@
+#let abbreviations = state("abbrs", "()");
+
+#let abbr(abbreviation, text) = {
+  abbreviations.update(abbrs => {
+    let abbrs = if abbrs.len() == 2 { eval(abbrs).to-dict() } else { eval(abbrs) };
+    if abbreviation not in abbrs {
+      if type(text) == type(none) {
+        panic(
+          "abbreviation '" + abbreviation +
+          "' has no definition yet, please specify it on the first call"
+        );
+      }
+      abbrs.insert(abbreviation, text);
+    }
+    "(" + abbrs.pairs().map((v) => { v.at(0) + ":\"" + v.at(1) + "\"" }).join(",") + ")"
+  });
+  abbreviation;
+}
+
+#let abbrlist() = {
+  let abbreviations = abbreviations.final();
+  return if abbreviations.len() == 2 { ().to-dict() } else { eval(abbreviations) }
+}