Initial import

ebook_converter/css_selectors/errors.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python2
+# vim:fileencoding=utf-8
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+__license__ = 'GPL v3'
+__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
+
+class SelectorError(ValueError):
+
+    """Common parent for SelectorSyntaxError and ExpressionError"""
+
+class SelectorSyntaxError(SelectorError):
+
+    """Parsing a selector that does not match the grammar."""
+
+class ExpressionError(SelectorError):
+
+    """Unknown or unsupported selector (eg. pseudo-class)."""