From ecb520cb6ed8238c1edd99325e24c47596dfec64 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 4 May 2013 10:01:40 +0530
Subject: [PATCH] Fix regression that caused searching for user categories to
 break. Fixes #1176187 (User Categories:true shows no results)

---
 src/calibre/utils/search_query_parser.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibre/utils/search_query_parser.py b/src/calibre/utils/search_query_parser.py
index 47bc902c1c..589aa313f2 100644
--- a/src/calibre/utils/search_query_parser.py
+++ b/src/calibre/utils/search_query_parser.py
@@ -133,6 +133,7 @@ class Parser(object):
         # Had to translate named constants to numeric values
         lex_scanner = re.Scanner([
                 (r'[()]',             lambda x,t: (1, t)),
+                (r'@.+?:[^")\s]+',    lambda x,t: (2, unicode(t))),
                 (r'[^"()\s]+',        lambda x,t: (2, unicode(t))),
                 (r'".*?((?<!\\)")',   lambda x,t: (3, t[1:-1])),
                 (r'\s+',              None)