flow like the river

BACK_BACK/node_modules/serialize-to-js/lib/internal/utils.js

@@ -0,0 +1,74 @@
+'use strict';
+
+function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
+
+var UNSAFE_CHARS_REGEXP = /[<>\u2028\u2029/\\\r\n\t"]/g;
+var CHARS_REGEXP = /[\\\r\n\t"]/g;
+var UNICODE_CHARS = {
+  '"': '\\"',
+  '\n': '\\n',
+  '\r': '\\r',
+  '\t': '\\t',
+  '\\': "\\u005C",
+  '<': "\\u003C",
+  '>': "\\u003E",
+  '/': "\\u002F",
+  "\u2028": "\\u2028",
+  "\u2029": "\\u2029"
+};
+
+function safeString(str) {
+  return str.replace(UNSAFE_CHARS_REGEXP, function (unsafeChar) {
+    return UNICODE_CHARS[unsafeChar];
+  });
+}
+
+function unsafeString(str) {
+  str = str.replace(CHARS_REGEXP, function (unsafeChar) {
+    return UNICODE_CHARS[unsafeChar];
+  });
+  return str;
+}
+
+function quote(str, opts) {
+  var fn = opts.unsafe ? unsafeString : safeString;
+  return str ? "\"".concat(fn(str), "\"") : '';
+}
+
+function saferFunctionString(str, opts) {
+  return opts.unsafe ? str : str.replace(/(<\/?)([a-z][^>]*?>)/ig, function (m, m1, m2) {
+    return safeString(m1) + m2;
+  });
+}
+
+function isObject(arg) {
+  return _typeof(arg) === 'object' && arg !== null;
+}
+
+function isBuffer(arg) {
+  return arg instanceof Buffer;
+}
+
+function isInvalidDate(arg) {
+  return isNaN(arg.getTime());
+}
+
+function toType(o) {
+  var _type = Object.prototype.toString.call(o);
+
+  var type = _type.substring(8, _type.length - 1);
+
+  if (type === 'Uint8Array' && isBuffer(o)) return 'Buffer';
+  return type;
+}
+
+module.exports = {
+  safeString: safeString,
+  unsafeString: unsafeString,
+  quote: quote,
+  saferFunctionString: saferFunctionString,
+  isBuffer: isBuffer,
+  isObject: isObject,
+  isInvalidDate: isInvalidDate,
+  toType: toType
+};