# HG changeset patch
# User paulb@localhost.localdomain
# Date 1186958089 -7200
# Node ID 48e3ffe9a1bee347ff788f301c4d167ff87f774c
# Parent  070e83791931a8b00ca44f1a65f6a2a3b6053b07
Added missing common module.


diff -r 070e83791931 -r 48e3ffe9a1be sqlliterals/common.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sqlliterals/common.py	Mon Aug 13 00:34:49 2007 +0200
@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+"""
+Convert one paramstyle to another in SQL statements.
+
+Copyright (C) 2007 Paul Boddie <paul@boddie.org.uk>
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+"""
+
+def replace(fromstyle, tostyle, regions):
+
+    """
+    Return a new sequence of regions, where the paramstyle 'fromstyle' is
+    replaced with 'tostyle' in the appropriate elements of 'regions'.
+    """ 
+
+    new_regions = []
+    non_literal = 1
+    for region in regions:
+        if non_literal:
+            new_regions.append(region.replace(fromstyle, tostyle))
+        else:
+            new_regions.append(region)
+        non_literal = not non_literal
+    return new_regions
+
+# vim: tabstop=4 expandtab shiftwidth=4