[meld] Use Myers matcher for inline differences (partially fixes bgo#587410)

[Kai Willadsen <kaiw src gnome org>]

commit afc1c6e6f4252a5d595cd4c2c3f187d6ec7548fe
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Wed Oct 6 17:24:55 2010 +1000

    Use Myers matcher for inline differences (partially fixes bgo#587410)
    
    Using MyersSequenceMatcher to highlight inline differences improves
    the chunking behaviour of our matching, and fixes several cases of
    unpleasant highlighting behaviour.

 meld/filediff.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/meld/filediff.py b/meld/filediff.py
index cb43ed8..03c3ca8 100644
--- a/meld/filediff.py
+++ b/meld/filediff.py
@@ -31,6 +31,7 @@ import gtk.keysyms
 import diffutil
 from ui import findbar
 from ui import gnomeglade
+import matchers
 import misc
 import melddoc
 import paths
@@ -55,7 +56,7 @@ class CachedSequenceMatcher(object):
             self.cache[(text1, textn)][1] = time.time()
             return self.cache[(text1, textn)][0]
         except KeyError:
-            matcher = difflib.SequenceMatcher(None, text1, textn)
+            matcher = matchers.MyersSequenceMatcher(None, text1, textn)
             opcodes = matcher.get_opcodes()
             self.cache[(text1, textn)] = [opcodes, time.time()]
             return opcodes