Sanitize parsing of kwargs to handle quote and backslash characters (#40)

Author: tylarb

Diff for: pgdb.py

@@ -1662,10 +1662,9 @@ def connect(dsn=None,
             value = str(value)
             if not value or ' ' in value:
                 value = "'%s'" % (value.replace(
-                    "'", "\\'").replace('\\', '\\\\'),)
+                    '\\', '\\\\').replace("'", "\\'"))
             dbname.append('%s=%s' % (kw, value))
         dbname = ' '.join(dbname)
-
     # open the connection
     cnx = _connect(dbname, dbhost, dbport, dbopt, dbuser, dbpasswd)
     return Connection(cnx)

Diff for: tests/test_dbapi20.py

@@ -80,7 +80,7 @@ def test_version(self):
         self.assertEqual(pgdb.__version__, v)
 
     def test_connect_kwargs(self):
-        application_name = 'PyGreSQL DB API 2.0 Test'
+        application_name = 'PyGreSQL DB API 2.0 Test with\' quote and \\\\backslash'
         self.connect_kw_args['application_name'] = application_name
         con = self._connect()
         cur = con.cursor()