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- # -*- coding: utf-8 -*-
- from django.core.exceptions import ImproperlyConfigured
-
-
- def _collect(name, parser):
- collector = getattr(name, 'collect', None)
- if callable(collector):
- return collector(parser)
- return name
-
-
- class BlockDefinition(object):
- """
- Definition of 'parse-until-blocks' used by the parser.
- """
- def __init__(self, alias, *names):
- self.alias = alias
- self.names = names
-
- def validate(self, options):
- for name in self.names:
- validator = getattr(name, 'validate', None)
- if callable(validator):
- validator(options)
-
- def collect(self, parser):
- return [_collect(name, parser) for name in self.names]
-
-
- class VariableBlockName(object):
- def __init__(self, template, argname):
- self.template = template
- self.argname = argname
-
- def validate(self, options):
- if self.argname not in options.all_argument_names:
- raise ImproperlyConfigured(
- "Invalid block definition, %r not a valid argument name, "
- "available argument names: %r" % (self.argname,
- options.all_argument_names)
- )
-
- def collect(self, parser):
- value = parser.kwargs[self.argname]
- return self.template % {'value': value.literal}
|
