feat(args): support arbitrary length aliases

- update parseKey() to allow any length aliases - add test
thi-ng · Mar 22, 2021 · 1cfdf49 · 1cfdf49
1 parent 820dc56
commit 1cfdf49
Show file tree

Hide file tree

Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/packages/args/src/parse.ts b/packages/args/src/parse.ts
@@ -83,7 +83,7 @@ const parseKey = <T extends IObjectOf<any>>(
             if (a === "--") return { state: 1 };
             id = camel(a.substr(2));
         } else {
-            id = aliases[a[1]];
+            id = aliases[a.substr(1)];
             !id && illegalArgs(`unknown option: ${a}`);
         }
         const spec: ArgSpecExt = specs[id];

diff --git a/packages/args/test/index.ts b/packages/args/test/index.ts
@@ -226,4 +226,17 @@ describe("args", () => {
             { result: { a: 1 }, index: 3, done: false, rest: ["ignore"] }
         );
     });
+
+    it("long alias", () => {
+        assert.deepStrictEqual(
+            parse<{ a?: string }>(
+                { a: string({ alias: "aaa" }) },
+                ["-aaa", "a"],
+                {
+                    start: 0,
+                }
+            ),
+            { result: { a: "a" }, index: 2, done: true, rest: [] }
+        );
+    });
 });