🚧 WIP

src/util.test.ts

@@ -41,3 +41,18 @@ Deno.test('with a lot of replacements', () => {
 	let s = lib.interpolate('hello {name} {name} {name} {name}', { name: 'world' });
 	assertEquals(s, 'hello world world world world');
 });
+
+Deno.test('should allow spaces in the keys', () => {
+	let s = lib.interpolate('hello {first name}', { 'first name': 'world' });
+	assertEquals(s, 'hello world');
+});
+
+Deno.test('should allow multiple keys', () => {
+	let s = lib.interpolate('{phrase} {name} {phrase}', { phrase: 'hello', name: 'world' });
+	assertEquals(s, 'hello world hello');
+});
+
+Deno.test('should allow zero-width keys to mean empty string', () => {
+	let s = lib.interpolate('{name} {}', { name: 'world', '': 'test' });
+	assertEquals(s, 'world test');
+});

src/util.ts

@@ -7,9 +7,7 @@ export type Props<T> = T extends `${string}{${infer S}}${infer Rest}`
 // @internal
 export type Dict<T = unknown> = Record<string, T>;
 
-// credit: https://github.com/lukeed/tempura/blob/e1c6a38da65876751b54a26d8a6371d6cf587459/src/%24utils.js#L2
-let CURLY = /{{?\s*([\s\S]*?)\s*}}?/g;
-
+let CURLY = /{([\s\S]*?)}/g;
 let cache: Record<string, any> = {};
 export function interpolate<const T extends string, O extends Pretty<Props<T>>>(
 	message: T,