update node modules

node_modules/abab/CHANGELOG.md

@@ -1,3 +1,12 @@
+## 2.0.5
+
+-   Use a lookup string in atobLookup and btoaLookup (@GiovanniFrigo in #38)
+-   Dependency updates
+
+## 2.0.4
+
+-   Dependency updates
+
 ## 2.0.3
 
 -   Use standard wording for BSD-3-Clause license (@PhilippWendler)

node_modules/abab/README.md

@@ -39,12 +39,13 @@ const atob = require('abab/lib/atob');
 const btoa = require('abab/lib/btoa');
 ```
 
------
+## Development
 
-### Checklists
+If you're **submitting a PR** or **deploying to npm**, please use the [checklists in CONTRIBUTING.md](CONTRIBUTING.md#checklists).
 
-If you're **submitting a PR** or **deploying to npm**, please use the [checklists in CONTRIBUTING.md](https://github.com/jsdom/abab/blob/master/CONTRIBUTING.md#checklists)
+## Remembering what `atob` and `btoa` stand for
 
-### Remembering `atob` vs. `btoa`
+Base64 comes from IETF [RFC 4648](https://tools.ietf.org/html/rfc4648#section-4) (2006). 
 
-Here's a mnemonic that might be useful: if you have a plain string and want to base64 encode it, then decode it, `btoa` is what you run before (**b**efore - **b**toa), and `atob` is what you run after (**a**fter - **a**tob).
+- **`btoa`**, the encoder function, stands for **binary** to **ASCII**, meaning it converts any binary input into a subset of **ASCII** (Base64).
+- **`atob`**, the decoder function, converts **ASCII** (or Base64) to its original **binary** format. 

node_modules/abab/lib/atob.js

@@ -84,24 +84,14 @@ function atob(data) {
  * A lookup table for atob(), which converts an ASCII character to the
  * corresponding six-bit number.
  */
+
+const keystr =
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
 function atobLookup(chr) {
-  if (/[A-Z]/.test(chr)) {
-    return chr.charCodeAt(0) - "A".charCodeAt(0);
-  }
-  if (/[a-z]/.test(chr)) {
-    return chr.charCodeAt(0) - "a".charCodeAt(0) + 26;
-  }
-  if (/[0-9]/.test(chr)) {
-    return chr.charCodeAt(0) - "0".charCodeAt(0) + 52;
-  }
-  if (chr === "+") {
-    return 62;
-  }
-  if (chr === "/") {
-    return 63;
-  }
-  // Throw exception; should not be hit in tests
-  return undefined;
+  const index = keystr.indexOf(chr);
+  // Throw exception if character is not in the lookup string; should not be hit in tests
+  return index < 0 ? undefined : index;
 }
 
 module.exports = atob;

node_modules/abab/lib/btoa.js

@@ -43,22 +43,14 @@ function btoa(s) {
  * Lookup table for btoa(), which converts a six-bit number into the
  * corresponding ASCII character.
  */
-function btoaLookup(idx) {
-  if (idx < 26) {
-    return String.fromCharCode(idx + "A".charCodeAt(0));
-  }
-  if (idx < 52) {
-    return String.fromCharCode(idx - 26 + "a".charCodeAt(0));
-  }
-  if (idx < 62) {
-    return String.fromCharCode(idx - 52 + "0".charCodeAt(0));
-  }
-  if (idx === 62) {
-    return "+";
-  }
-  if (idx === 63) {
-    return "/";
+const keystr =
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+function btoaLookup(index) {
+  if (index >= 0 && index < 64) {
+    return keystr[index];
   }
+
   // Throw INVALID_CHARACTER_ERR exception here -- won't be hit in the tests.
   return undefined;
 }

node_modules/abab/package.json

@@ -1,27 +1,27 @@
 {
-  "_from": "abab@^2.0.3",
-  "_id": "abab@2.0.3",
+  "_from": "abab@^2.0.5",
+  "_id": "abab@2.0.5",
   "_inBundle": false,
-  "_integrity": "sha512-tsFzPpcttalNjFBCFMqsKYQcWxxen1pgJR56by//QwvJc4/OUS3kPOOttx2tSIfjsylB0pYu7f5D3K1RCxUnUg==",
+  "_integrity": "sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==",
   "_location": "/abab",
   "_phantomChildren": {},
   "_requested": {
     "type": "range",
     "registry": true,
-    "raw": "abab@^2.0.3",
+    "raw": "abab@^2.0.5",
     "name": "abab",
     "escapedName": "abab",
-    "rawSpec": "^2.0.3",
+    "rawSpec": "^2.0.5",
     "saveSpec": null,
-    "fetchSpec": "^2.0.3"
+    "fetchSpec": "^2.0.5"
   },
   "_requiredBy": [
     "/data-urls",
     "/jsdom"
   ],
-  "_resolved": "https://registry.npmjs.org/abab/-/abab-2.0.3.tgz",
-  "_shasum": "623e2075e02eb2d3f2475e49f99c91846467907a",
-  "_spec": "abab@^2.0.3",
+  "_resolved": "https://registry.npmjs.org/abab/-/abab-2.0.5.tgz",
+  "_shasum": "c0b678fb32d60fc1219c784d6a826fe385aeb79a",
+  "_spec": "abab@^2.0.5",
   "_where": "D:\\Projects\\minifyfromhtml\\node_modules\\jsdom",
   "author": {
     "name": "Jeff Carpenter",
@@ -67,5 +67,5 @@
     "mocha": "mocha test/node",
     "test": "npm run lint && npm run mocha && npm run karma"
   },
-  "version": "2.0.3"
+  "version": "2.0.5"
 }