Add a simple api for writing tags which can be used with the new 'with

2008-04-21  Johan Dahlin  <jdahlin@async.com.br>

        * giscanner/gidlwriter.py:
        * giscanner/xmlwriter.py:
        Add a simple api for writing tags which can be used 
        with the new 'with statement' in python 2.5


svn path=/trunk/; revision=190

1 files changed, 11 insertions, 0 deletions

diff --git a/giscanner/xmlwriter.py b/giscanner/xmlwriter.py
index 2f80603d..e7a9167d 100644
--- a/giscanner/xmlwriter.py
+++ b/giscanner/xmlwriter.py
@@ -1,3 +1,5 @@
+from contextlib import contextmanager
+
 from cStringIO import StringIO
 from xml.sax.saxutils import quoteattr
 
@@ -53,3 +55,12 @@ class XMLWriter(object):
         tag_name = self._tag_stack.pop()
         self._close_tag(tag_name)
         return tag_name
+
+    @contextmanager
+    def tagcontext(self, tag_name, attributes=None):
+        self.push_tag(tag_name, attributes)
+        try:
+            yield
+        finally:
+            self.pop_tag()
+