From ca2f9acce25b2326127eb4dc76fe1a317984dc14 Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Tue, 25 Sep 2012 14:49:51 +0900
Subject: [PATCH] fix error in type answer when field has \g etc

---
 aqt/reviewer.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/aqt/reviewer.py b/aqt/reviewer.py
index ae0a02344..91c4de7a4 100644
--- a/aqt/reviewer.py
+++ b/aqt/reviewer.py
@@ -386,9 +386,13 @@ Please run Tools>Maintenance>Empty Cards""")
             res += u"<span id=rightanswer><br> {0} <br> {1} </span>".format(
                 _(u"Correct answer was:"), cor)
         # and update the type answer area
-        return re.sub(self.typeAnsPat, """
-<span style="font-family: '%s'; font-size: %spx">%s</span>""" %
-                      (self.typeFont, self.typeSize, res), buf)
+        def repl(match):
+            # can't pass a string in directly, and can't use re.escape as it
+            # escapes too much
+            return """
+<span style="font-family: '%s'; font-size: %spx">%s</span>""" % (
+                self.typeFont, self.typeSize, res)
+        return re.sub(self.typeAnsPat, repl, buf)
 
     def _contentForCloze(self, txt, idx):
         matches = re.findall("\{\{c%s::(.+?)\}\}"%idx, txt)