refactor: change separate tools by category

core/stdlib/src/text/template/index.ts

@@ -0,0 +1,65 @@
+import { getByPath, type Generate } from '../../collections';
+import { isFunction } from '../../types';
+
+/**
+ * Type of a value that will be used to replace a placeholder in a template.
+ */
+type StringPrimitive = string | number | bigint | null | undefined;
+
+/**
+ * Type of a fallback value when a template key is not found.
+ */
+type TemplateFallback = string | ((key: string) => string);
+
+/**
+ * Type of an object that will be used to replace placeholders in a template.
+ */
+type TemplateArgsObject = StringPrimitive[] | { [key: string]: TemplateArgsObject | StringPrimitive };
+
+/**
+ * Type of a template string with placeholders.
+ */
+const TEMPLATE_PLACEHOLDER = /{([^{}]+)}/gm;
+
+/**
+ * Removes the placeholder syntax from a template string.
+ * 
+ * @example
+ * type Base = ClearPlaceholder<'{user.name}'>; // 'user.name'
+ * type Unbalanced = ClearPlaceholder<'{user.name'>; // 'user.name'
+ */
+export type ClearPlaceholder<T extends string> =
+  T extends `${string}{${infer Template}`
+    ? ClearPlaceholder<Template>
+    : T extends `${infer Template}}${string}`
+      ? ClearPlaceholder<Template>
+      : T;
+
+/**
+ * Extracts all placeholders from a template string.
+ * 
+ * @example
+ * type Base = ExtractPlaceholders<'Hello {user.name}, {user.addresses.0.street}'>; // 'user.name' | 'user.addresses.0.street'
+ */
+export type ExtractPlaceholders<T extends string> =
+  T extends `${infer Before}}${infer After}`
+    ? Before extends `${string}{${infer Placeholder}`
+      ? ClearPlaceholder<Placeholder> | ExtractPlaceholders<After>
+      : ExtractPlaceholders<After>
+    : never;
+
+export function templateObject<T extends string, A extends Generate<ExtractPlaceholders<T>>>(template: T, args: A, fallback?: TemplateFallback): string {
+    return template.replace(TEMPLATE_PLACEHOLDER, (_, key) => {    
+        const value = getByPath(args, key) as string;
+        return value !== undefined ? value : (isFunction(fallback) ? fallback(key) : '');
+    });
+}
+
+// templateObject('Hello {user.name}, your address {user.addresses.0.street}', {
+//   user: {
+//     name: 'John',
+//     addresses: [
+//       { city: 'New York', street: '5th Avenue' },
+//     ],
+//   },
+// });