Improve code quality and write tests

node_modules/@babel/plugin-proposal-json-strings/lib/index.js

@@ -0,0 +1,58 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _helperPluginUtils() {
+  const data = require("@babel/helper-plugin-utils");
+
+  _helperPluginUtils = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _pluginSyntaxJsonStrings() {
+  const data = _interopRequireDefault(require("@babel/plugin-syntax-json-strings"));
+
+  _pluginSyntaxJsonStrings = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var _default = (0, _helperPluginUtils().declare)(api => {
+  api.assertVersion(7);
+  const regex = /(\\*)([\u2028\u2029])/g;
+
+  function replace(match, escapes, separator) {
+    const isEscaped = escapes.length % 2 === 1;
+    if (isEscaped) return match;
+    return `${escapes}\\u${separator.charCodeAt(0).toString(16)}`;
+  }
+
+  return {
+    name: "proposal-json-strings",
+    inherits: _pluginSyntaxJsonStrings().default,
+    visitor: {
+      "DirectiveLiteral|StringLiteral"({
+        node
+      }) {
+        const {
+          extra
+        } = node;
+        if (!extra || !extra.raw) return;
+        extra.raw = extra.raw.replace(regex, replace);
+      }
+
+    }
+  };
+});
+
+exports.default = _default;