catch error when unicode escaping detected; tag 0.0.5

Cirru · Nov 7, 2021 · dcb2383 · dcb2383
1 parent 4fdfe47
commit dcb2383
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Showing 3 changed files with 15 additions and 1 deletion.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cirru/parser.ts",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "Cirru Parser in TypeScript",
   "main": "lib/index.js",
   "scripts": {

diff --git a/src/index.ts b/src/index.ts
@@ -186,6 +186,10 @@ let lex = (initialCode: string) => {
             case "\\":
               [acc, state, buffer] = [acc, ELexState.string, `${buffer}\\`];
               break;
+            case "u":
+              console.warn(`unicode escaping not supported yet, ${code.slice(pointer - 1, pointer + 10)}...`);
+              [acc, state, buffer] = [acc, ELexState.string, `${buffer}\\u`];
+              break;
             default:
               throw new Error(`Unknown ${c} in escape`);
           }

diff --git a/src/parser.test.ts b/src/parser.test.ts
@@ -75,3 +75,13 @@ test("unfolding", () => {
   let data = require(path.join(__dirname, "../test/ast/unfolding.json"));
   expect(parse(code)).toEqual(data);
 });
+
+test("with escaping", () => {
+  let code = `"\'a"`;
+  let data = [["'a"]];
+  expect(parse(code)).toEqual(data);
+
+  code = `"\\u{3455}"`;
+  data = [["\\u{3455}"]];
+  expect(parse(code)).toEqual(data);
+});