def do_block(parser, token):
"""
Define a block that can be overridden by child templates. Adapted for Handlebars
template syntax. Note that you cannot use template variables in these blocks!
"""
bits = token.contents.split()
if len(bits) != 2:
raise TemplateSyntaxError("'%s' tag takes only one argument" % bits[0])
block_name = bits[1]
# Keep track of the names of BlockNodes found in this template, so we can
# check for duplication.
try:
if block_name in parser.__loaded_blocks:
raise TemplateSyntaxError(
"'%s' tag with name '%s' appears more than once" %
(bits[0], block_name))
parser.__loaded_blocks.append(block_name)
except AttributeError: # parser.__loaded_blocks isn't a list yet
parser.__loaded_blocks = [block_name]
acceptable_endblocks = ('endblock_verbatim',
'endblock_verbatim %s' % block_name)
# modify nodelist!
nodelist = verbatim_tags(parser, token, endtagnames=acceptable_endblocks)
return BlockNode(block_name, nodelist)
def test_repr(self):
block_context = BlockContext()
block_context.add_blocks({"content": BlockNode("content", [])})
self.assertEqual(
repr(block_context),
"<BlockContext: blocks=defaultdict(<class 'list'>, "
"{'content': [<Block Node: content. Contents: []>]})>",
)
def do_block(parser, token):
"""Shortcut alias for {% block %} tag."""
bits = token.contents.split()
if len(bits) != 2:
raise TemplateSyntaxError, "'%s' tag takes only one argument" % bits[0]
block_name = bits[1]
# Keep track of the names of BlockNodes found in this template, so we can
# check for duplication.
try:
if block_name in parser.__loaded_blocks:
raise TemplateSyntaxError, "'%s' tag with name '%s' appears more than once" % (
bits[0], block_name)
parser.__loaded_blocks.append(block_name)
except AttributeError: # parser.__loaded_blocks isn't a list yet
parser.__loaded_blocks = [block_name]
nodelist = parser.parse(('endb', 'endb %s' % block_name))
parser.delete_first_token()
return BlockNode(block_name, nodelist)
def render_actual(self, context, name):
return BlockNode(name, NodeList()).render_annotated(context)
