From f29d8eeda89a01219d3a449eae1cd697555f4fcb Mon Sep 17 00:00:00 2001
From: wh0 <wh0@users.noreply.github.com>
Date: Tue, 25 Jun 2019 18:35:25 -0700
Subject: [PATCH] Parse octal escape sequences

---
 src/core/Utils.mjs                     | 11 +++++++++--
 src/core/operations/UnescapeString.mjs |  2 +-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/core/Utils.mjs b/src/core/Utils.mjs
index e4411fe0..273eca1e 100755
--- a/src/core/Utils.mjs
+++ b/src/core/Utils.mjs
@@ -201,11 +201,18 @@ class Utils {
      * Utils.parseEscapedChars("\\n");
      */
     static parseEscapedChars(str) {
-        return str.replace(/(\\)?\\([bfnrtv0'"]|x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]{1,6}\})/g, function(m, a, b) {
+        return str.replace(/(\\)?\\([bfnrtv'"]|[0-3][0-7]{2}|[0-7]{1,2}|x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]{1,6}\})/g, function(m, a, b) {
             if (a === "\\") return "\\"+b;
             switch (b[0]) {
                 case "0":
-                    return "\0";
+                case "1":
+                case "2":
+                case "3":
+                case "4":
+                case "5":
+                case "6":
+                case "7":
+                    return String.fromCharCode(parseInt(b, 8));
                 case "b":
                     return "\b";
                 case "t":
diff --git a/src/core/operations/UnescapeString.mjs b/src/core/operations/UnescapeString.mjs
index 62eab48e..1a625582 100644
--- a/src/core/operations/UnescapeString.mjs
+++ b/src/core/operations/UnescapeString.mjs
@@ -20,7 +20,7 @@ class UnescapeString extends Operation {
 
         this.name = "Unescape string";
         this.module = "Default";
-        this.description = "Unescapes characters in a string that have been escaped. For example, <code>Don\\'t stop me now</code> becomes <code>Don't stop me now</code>.<br><br>Supports the following escape sequences:<ul><li><code>\\n</code> (Line feed/newline)</li><li><code>\\r</code> (Carriage return)</li><li><code>\\t</code> (Horizontal tab)</li><li><code>\\b</code> (Backspace)</li><li><code>\\f</code> (Form feed)</li><li><code>\\xnn</code> (Hex, where n is 0-f)</li><li><code>\\\\</code> (Backslash)</li><li><code>\\'</code> (Single quote)</li><li><code>\\&quot;</code> (Double quote)</li><li><code>\\unnnn</code> (Unicode character)</li><li><code>\\u{nnnnnn}</code> (Unicode code point)</li></ul>";
+        this.description = "Unescapes characters in a string that have been escaped. For example, <code>Don\\'t stop me now</code> becomes <code>Don't stop me now</code>.<br><br>Supports the following escape sequences:<ul><li><code>\\n</code> (Line feed/newline)</li><li><code>\\r</code> (Carriage return)</li><li><code>\\t</code> (Horizontal tab)</li><li><code>\\b</code> (Backspace)</li><li><code>\\f</code> (Form feed)</li><li><code>\\nnn</code> (Octal, where n is 0-7)</li><li><code>\\xnn</code> (Hex, where n is 0-f)</li><li><code>\\\\</code> (Backslash)</li><li><code>\\'</code> (Single quote)</li><li><code>\\&quot;</code> (Double quote)</li><li><code>\\unnnn</code> (Unicode character)</li><li><code>\\u{nnnnnn}</code> (Unicode code point)</li></ul>";
         this.infoURL = "https://wikipedia.org/wiki/Escape_sequence";
         this.inputType = "string";
         this.outputType = "string";