feat: replaceInlineContext commands: split, index

Author: stephancill

jest.config.ts

@@ -0,0 +1,21 @@
+import type { Config } from 'jest';
+
+const jestConfig: Config = {
+  testEnvironment: 'node',
+  moduleNameMapper: {
+    '^~/(.*)$': '<rootDir>/src/$1',
+    '^(.+)_generated.js$': '$1_generated', // Support flatc generated files
+  },
+  coveragePathIgnorePatterns: ['<rootDir>/build/', '<rootDir>/node_modules/'],
+  testPathIgnorePatterns: ['<rootDir>/build', '<rootDir>/node_modules'],
+  extensionsToTreatAsEsm: ['.ts'],
+  /**
+   * For high performance with minimal configuration transform with TS with swc.
+   * @see https://github.com/farcasterxyz/hubble/issues/314
+   */
+  transform: {
+    '^.+\\.(t|j)sx?$': '@swc/jest',
+  },
+};
+
+export default jestConfig;

package.json

@@ -11,8 +11,10 @@
   "devDependencies": {
     "@changesets/cli": "2.26.2",
     "@turbo/gen": "^1.9.7",
+    "@types/jest": "^29.5.11",
     "eslint": "^8.46.0",
     "eslint-config-custom": "*",
+    "jest": "^29.7.0",
     "prettier": "^2.5.1",
     "react": "^18.2.0",
     "tsup": "^7.2.0",
@@ -28,4 +30,4 @@
     "packages/*",
     "docs"
   ]
-}
+}

packages/core/src/renderer.test.ts

@@ -0,0 +1,15 @@
+import { replaceInlineContext } from "./renderer"; // Adjust the import path as needed
+
+describe("replaceInlineContext", () => {
+  it("replaces simple path without operation", () => {
+    const context = { user: { name: "Jane Doe" } };
+    const template = "Hello {{user.name}}";
+    expect(replaceInlineContext(template, context)).toBe("Hello Jane Doe");
+  });
+
+  it("applies split and index operations to extract part of a string", () => {
+    const context = { refs: { example: { url: "ipfs://exampleCID" } } };
+    const template = "{{refs.example.url | split ipfs:// | index 1}}";
+    expect(replaceInlineContext(template, context)).toBe("exampleCID");
+  });
+});

packages/core/src/renderer.ts

@@ -314,8 +314,32 @@ export interface ExitActionResolver {
   (): void;
 }
 
-function replaceInlineContext(target: string, context: any): string {
-  return target.replace(/{{([^{{}}]+)}}/g, (_, key) => get(context, key, ``));
+function executeCommand(input: string, command: string) {
+  const [cmd, ...args] = command.split(" ");
+  switch (cmd) {
+    case "split":
+      return input.split(args[0]);
+    case "index":
+      return input[parseInt(args[0], 10)];
+    default:
+      return input;
+  }
+}
+
+export function replaceInlineContext(target: string, context: any): string {
+  return target.replace(/{{([^{{}}]+)}}/g, (_, key) => {
+    const parts = key.split("|").map((part: string) => part.trim());
+    let value = get(context, parts[0], "");
+
+    // Process additional commands if they exist
+    if (parts.length > 1) {
+      for (let i = 1; i < parts.length; i++) {
+        value = executeCommand(value, parts[i]);
+      }
+    }
+
+    return value;
+  });
 }
 
 function matchesOp(value: string, op: Op, context: any): boolean {

yarn.lock

@@ -4121,6 +4121,14 @@
     expect "^29.0.0"
     pretty-format "^29.0.0"
 
+"@types/jest@^29.5.11":
+  version "29.5.11"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-29.5.11.tgz#0c13aa0da7d0929f078ab080ae5d4ced80fa2f2c"
+  integrity sha512-S2mHmYIVe13vrm6q4kN6fLYYAka15ALQki/vgDC3mIukEOx8WJlv0kQPM+d4w8Gp6u0uSdKND04IlTXBv0rwnQ==
+  dependencies:
+    expect "^29.0.0"
+    pretty-format "^29.0.0"
+
 "@types/js-yaml@^4.0.0":
   version "4.0.9"
   resolved "https://registry.yarnpkg.com/@types/js-yaml/-/js-yaml-4.0.9.tgz#cd82382c4f902fed9691a2ed79ec68c5898af4c2"