I have a weird problem. (I'm using Django 1.0.2, Python version 2.5.2
on Ubuntu 8.10). Say I have a template like this:
"""
{% sometag %}
Some stuff
{% someothertag %}
Some more stuff
{% yetanothertag %}
Last stuff
{% endsometag %}
"""
My template tag function looks something like this:
@register.tag(name="sometag")
def do_sometag(parser, token):
nodelist1 = parser.parse(('someothertag',' yetanothertag',
'endsometag'))
parser.delete_first_token()
nodelist2 = parser.parse(('someothertag',' yetanothertag',
'endsometag'))
parser.delete_first_token()
# ... do some stuff ... no point returning a node, not going to
get that far...
This is just distilling my problem down. My actual project is more
complicated, but the above code fails exactly as advertised for me,
and I would need the above to work for what I want to work. What will
happen is that the parser is happy as anything to do the first call to
parse. On the second call to parse, no matter what tag is next in the
template, an exception is raise. In the template above, where
someothertag is next, I will get:
Exception Type: TemplateSyntaxError
Exception Value:
Invalid block tag: 'yetanothertag'
Exception Location: /usr/lib/python2.5/site-packages/django/template/
__init__.py in invalid_block_tag, line 333
Like, what the hell. Can anyone explain to me why I can't call parse
more than once and pick up more pieces? What am I missing here? I've
tried copying what the if tag does for its else clause (the if-else-
endif set works) but again the parser chokes the second time it is
called. Can someone make my headache go away? :) What I ultimately
want to do is loop over a set of tags, saving up the NodeLists, until
the end tag is encountered.
Thanks,
Stephen
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