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Package ZestyParser :: Module Tokens :: Class TokenSequence |
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AbstractToken
--+
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TokenSequence
A class whose instances match a sequence of tokens. Returns a
corresponding list of return values from ZestyParser.scan
.
Skip
and Omit
, are allowed in the sequence. These
are wrappers for other token objects adding special behaviours. If it
encounters a Skip
token, it will process it with ZestyParser.skip
, ignore whether it
matched, and not include it in the list. If it encounters a Omit
token, it will still require that it
match (the default behaviour), but it will not be included in the
list.
Method Summary | |
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Allows you to construct TokenSequence s with the + operator. | |
__call__(self,
parser,
origCursor)
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__iadd__(self,
other)
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__str__(self)
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Inherited from AbstractToken | |
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Allows you to construct CompositeToken s with the | operator. | |
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Convenience overloading for setting the callback of a token whose initializer you
do not call directly, such as the result of combining tokens with + or | . | |
Overloading for setting the failMessage of a token. | |
Method called by subclasses' __call__ methods to add
uniform support for the callback and as parameters. |
Instance Variable Summary | |
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iterable | desc : An iterable returning token objects. |
Inherited from AbstractToken | |
as : An optional callable which, if not None, will be called in the same
manner as a callback (after any callback and before returning to the
parser instance), but will be passed only one argument: the data matched
(or returned by the callback, if any). | |
callback : An optional callable which, if not None, will be called whenever an
instance matches successfully. |
Class Variable Summary | |
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Inherited from AbstractToken | |
NoneType |
failMessage = None |
Method Details |
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__add__(self,
other)
Allows you to construct |
Instance Variable Details |
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descAn iterable returning token objects.
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