# HG changeset patch
# User Goffi <goffi@goffi.org>
# Date 1506263358 -7200
# Node ID 47516e90d26a7e85b9c271c4ce8388c0815b693e
# Parent  71b10dd7a13afea0d2297bc63d459603d285dd6f
jp (pubsub/node/schema): check that a schema exists before parsing it (fix issue on new schema edition)

diff -r 71b10dd7a13a -r 47516e90d26a frontends/src/jp/cmd_pubsub.py
--- a/frontends/src/jp/cmd_pubsub.py	Fri Sep 22 18:04:14 2017 +0200
+++ b/frontends/src/jp/cmd_pubsub.py	Sun Sep 24 16:29:18 2017 +0200
@@ -420,11 +420,13 @@
         except ImportError:
             self.disp(u"lxml module must be installed to use edit, please install it with \"pip install lxml\"", error=True)
             self.host.quit(1)
-        parser = etree.XMLParser(remove_blank_text=True)
-        schema_elt = etree.fromstring(schema, parser)
         content_file_obj, content_file_path = self.getTmpFile()
-        content_file_obj.write(etree.tostring(schema_elt, encoding="utf-8", pretty_print=True))
-        content_file_obj.seek(0)
+        schema = schema.strip()
+        if schema:
+            parser = etree.XMLParser(remove_blank_text=True)
+            schema_elt = etree.fromstring(schema, parser)
+            content_file_obj.write(etree.tostring(schema_elt, encoding="utf-8", pretty_print=True))
+            content_file_obj.seek(0)
         self.runEditor("pubsub_schema_editor_args", content_file_path, content_file_obj)
 
     def start(self):