From 2975b74c3b5255c572aff1ed9c9bd79437a421c3 Mon Sep 17 00:00:00 2001
From: Ravali Yatham <ravaliyatham@Ravalis-MacBook-Pro.local>
Date: Mon, 20 Dec 2021 18:01:58 +0530
Subject: [PATCH] Both APIs fail when the key or value contain vertical tab.
 Fix that by adding escape sequencing for vertical tab

Add two unit tests to validate this scenario.
Fixes: #31
---
 test/test-parse-verticaltab.js     | 22 ++++++++++++++++++++++
 test/test-stringify-verticaltab.js | 27 +++++++++++++++++++++++++++
 yieldable-stringify.js             |  1 +
 3 files changed, 50 insertions(+)
 create mode 100644 test/test-parse-verticaltab.js
 create mode 100644 test/test-stringify-verticaltab.js

diff --git a/test/test-parse-verticaltab.js b/test/test-parse-verticaltab.js
new file mode 100644
index 0000000..76322b3
--- /dev/null
+++ b/test/test-parse-verticaltab.js
@@ -0,0 +1,22 @@
+'use strict';
+
+const yj = require('../index');
+const tap = require('tap');
+
+//string with nested quotes
+const str = '{"name":"Ila Gould","age":22,"gender":"female","nested":"\\u000bcheck"}';
+
+yj.parseAsync(str, (error, obj) => {
+  if (!error){
+    tap.equal(str,JSON.stringify(obj));
+    yj.stringifyAsync(obj,(err,data) => {
+      if(!err){
+        tap.equal(data,str);
+      }
+      else
+        tap.fail(err);
+     })
+  }
+  else
+    tap.fail(error);
+});
diff --git a/test/test-stringify-verticaltab.js b/test/test-stringify-verticaltab.js
new file mode 100644
index 0000000..c43e2bb
--- /dev/null
+++ b/test/test-stringify-verticaltab.js
@@ -0,0 +1,27 @@
+'use strict';
+
+const yj = require('../index');
+const tap = require('tap');
+
+//Object with nested quotes
+const obj = {
+  name: 'Jacqueline Poole',
+  gender: 'female',
+  age: 40,
+  a:"\vb"
+};
+
+yj.stringifyAsync(obj, (err, str) => {
+  if (!err){
+    tap.equal(JSON.stringify(obj), str);
+    yj.parseAsync(str,(error,data) => {
+      if(!error){
+        tap.same(data,obj);
+      }
+      else
+        tap.fail(error);
+})
+  }
+  else
+    tap.fail(err);
+});
diff --git a/yieldable-stringify.js b/yieldable-stringify.js
index b3814f6..56a4faa 100755
--- a/yieldable-stringify.js
+++ b/yieldable-stringify.js
@@ -47,6 +47,7 @@ let normalize = (string, flagN) => {
     '\n': '\\n',
     '\f': '\\f',
     '\r': '\\r',
+    '\v': '\\u000b',
     '"': '\\"',
   };
   // Escape is implemented globally