From b07ff100d1d7efc59c1a86659d52afb11ed668bf Mon Sep 17 00:00:00 2001
From: daboe01 <daboe01@googlemail.com>
Date: Sat, 18 Jun 2016 19:18:23 +0200
Subject: [PATCH] fixed: function is missing

---
 AppKit/CPTextView/CPTextView.j | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/AppKit/CPTextView/CPTextView.j b/AppKit/CPTextView/CPTextView.j
index 81d6526eb..9a8cb4b12 100644
--- a/AppKit/CPTextView/CPTextView.j
+++ b/AppKit/CPTextView/CPTextView.j
@@ -77,6 +77,13 @@ _characterTripletFromStringAtIndex = function(string, index)
     return [string substringWithRange:tripletRange];
 }
 
+_regexMatchesStringAtIndex=function(regex, string, index)
+{
+    var triplet = _characterTripletFromStringAtIndex(string, index);
+
+    return regex.exec(triplet)  !== null;
+}
+
 /*
     CPSelectionGranularity
 */
@@ -1780,7 +1787,7 @@ var kDelegateRespondsTo_textShouldBeginEditing
             // FIXME if (!characterSet) croak!
     }
 
-    return characterSet.exec(_characterTripletFromStringAtIndex([_textStorage string], index)) !== null;
+    return _regexMatchesStringAtIndex(characterSet, [_textStorage string], index);
 }
 
 + (JSObject)_wordBoundaryRegex