From: Guilherme Polo <ggpolo@gmail.com>
Date: Mon, 9 Feb 2009 16:44:24 +0000 (+0000)
Subject: Merged revisions 69461 via svnmerge from
X-Git-Tag: v3.1a1~229
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ae09899fa39bc0b9a4b79b236aa98bd5f1475134;p=python

Merged revisions 69461 via svnmerge from
svn+ssh://pythondev/python/trunk

........
  r69461 | guilherme.polo | 2009-02-09 14:41:09 -0200 (Mon, 09 Feb 2009) | 3 lines

  Fixed issue #4890: Handle empty text search pattern in
  Tkinter.Text.search
........
---

diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index a6397ea701..af49170568 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -3016,7 +3016,8 @@ class Text(Widget):
            forwards=None, backwards=None, exact=None,
            regexp=None, nocase=None, count=None, elide=None):
         """Search PATTERN beginning from INDEX until STOPINDEX.
-        Return the index of the first character of a match or an empty string."""
+        Return the index of the first character of a match or an
+        empty string."""
         args = [self._w, 'search']
         if forwards: args.append('-forwards')
         if backwards: args.append('-backwards')
@@ -3025,7 +3026,7 @@ class Text(Widget):
         if nocase: args.append('-nocase')
         if elide: args.append('-elide')
         if count: args.append('-count'); args.append(count)
-        if pattern[0] == '-': args.append('--')
+        if pattern and pattern[0] == '-': args.append('--')
         args.append(pattern)
         args.append(index)
         if stopindex: args.append(stopindex)
diff --git a/Misc/NEWS b/Misc/NEWS
index 5a3b4adad1..7cfddb2c19 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -160,6 +160,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
+
 - Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
   public documented method ``ZipImporter.get_filename()``.