From adc6a173a52142750b40928c5e7cb266ea01ce93 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 21 Nov 2014 12:27:26 +0530
Subject: [PATCH] oops

---
 src/calibre/gui2/tweak_book/editor/text.py      | 2 +-
 src/calibre/gui2/tweak_book/function_replace.py | 2 +-
 src/calibre/gui2/tweak_book/search.py           | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/calibre/gui2/tweak_book/editor/text.py b/src/calibre/gui2/tweak_book/editor/text.py
index 57c41ad1f3..ee5dcd85af 100644
--- a/src/calibre/gui2/tweak_book/editor/text.py
+++ b/src/calibre/gui2/tweak_book/editor/text.py
@@ -359,8 +359,8 @@ class TextEdit(PlainTextEdit):
             raw, count = pat.subn(template, raw)
             if repl_is_func:
                 from calibre.gui2.tweak_book.search import show_function_debug_output
-                show_function_debug_output(template)
                 template.end()
+                show_function_debug_output(template)
             if count > 0:
                 start_pos = min(c.anchor(), c.position())
                 c.insertText(raw)
diff --git a/src/calibre/gui2/tweak_book/function_replace.py b/src/calibre/gui2/tweak_book/function_replace.py
index 4d936a187b..32fefc051d 100644
--- a/src/calibre/gui2/tweak_book/function_replace.py
+++ b/src/calibre/gui2/tweak_book/function_replace.py
@@ -97,7 +97,7 @@ class Function(object):
                 return self.func(None, self.match_index, self.context_name, self.boss.current_metadata, dictionaries, self.data, self.functions)
             finally:
                 sys.stdout, sys.stderr = oo, oe
-        self.data, self.debug_buf, self.boss, self.functions = {}, None, None, {}
+        self.data, self.boss, self.functions = {}, None, {}
 
 class DebugOutput(Dialog):
 
diff --git a/src/calibre/gui2/tweak_book/search.py b/src/calibre/gui2/tweak_book/search.py
index 0e71cef268..e97c3765ae 100644
--- a/src/calibre/gui2/tweak_book/search.py
+++ b/src/calibre/gui2/tweak_book/search.py
@@ -1188,6 +1188,7 @@ def get_search_function(search):
 def show_function_debug_output(func):
     if isinstance(func, Function):
         val = func.debug_buf.getvalue().strip()
+        func.debug_buf.truncate(0)
         if val:
             from calibre.gui2.tweak_book.boss import get_boss
             get_boss().gui.sr_debug_output.show_log(func.name, val)