# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1422741627 -3600
# Node ID be11a8a23d92e1c086ee45513e885959057b5d80
# Parent  9ddd8ed3295a2c1c60b8abfe94dfca79c471af23
Raise a ParseError upon parsing ill-formed files.

diff -r 9ddd8ed3295a -r be11a8a23d92 vContent.py
--- a/vContent.py	Sat Jan 31 22:59:45 2015 +0100
+++ b/vContent.py	Sat Jan 31 23:00:27 2015 +0100
@@ -454,7 +454,10 @@
         "Parse the contents of the file 'f'."
 
         ParserBase.parse(self, f, parser_cls)
-        return self.components[0]
+        try:
+            return self.components[0]
+        except IndexError:
+            raise ParseError, "No vContent component found in file."
 
 # Writer classes.