more advanced unit aliasing

squeebot.repo.json

@@ -43,7 +43,7 @@
     },
     {
       "name": "utility",
-      "version": "3.1.7"
+      "version": "3.1.10"
     }
   ],
   "typescript": true

utility/plugin.json

@@ -2,7 +2,7 @@
   "main": "plugin.js",
   "name": "utility",
   "description": "Utility commands and math operations",
-  "version": "3.1.7",
+  "version": "3.1.10",
   "tags": ["commands", "tools"],
   "dependencies": ["simplecommands"],
   "npmDependencies": [

utility/plugin.ts

@@ -236,10 +236,12 @@ function createUnitIndex(): void {
         abbr, singular.toLowerCase(), plural.toLowerCase()
       ];
 
+      // liter <-> litres
       if (abbr === 'l') {
         unitIndex[abbr].push('liter', 'liters');
       }
 
+      // meter -> metre
       if (singular.includes('meter')) {
         unitIndex[abbr].push(
           singular.replace('meter', 'metre').toLowerCase(),
@@ -247,6 +249,23 @@ function createUnitIndex(): void {
         );
       }
 
+      // metre -> meter
+      if (singular.includes('metre')) {
+        unitIndex[abbr].push(
+          singular.replace('metre', 'meter').toLowerCase(),
+          plural.replace('metre', 'meter').toLowerCase(),
+        );
+      }
+
+      // " per " -> "/"
+      const appendages: string[] = [];
+      unitIndex[abbr].forEach((entry) => {
+        if (entry.includes(' per ')) {
+          appendages.push(entry.replace(' per ', '/'));
+        }
+      });
+      unitIndex[abbr].push(...appendages);
+
       backupLowercaseUnitTable[abbr.toLowerCase()] = abbr;
     }
   });