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tinycss.tokenizer
-----------------
Tokenizer for the CSS core syntax:
http://www.w3.org/TR/CSS21/syndata.html#tokenization
This is the pure-python implementation. See also speedups.pyx
:copyright: (c) 2012 by Simon Sapin.
:license: BSD, see LICENSE for more details.
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:param css_source:
CSS as an unicode string
:param ignore_comments:
if true (the default) comments will not be included in the
return value
:return:
An iterator of :class:`Token`
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(Strings in "" or '' are taken care of by the tokenizer.)
Opening tokens are replaced by a :class:`ContainerToken`.
Closing tokens are removed. Unmatched closing tokens are invalid
but left as-is. All nested structures that are still open at
the end of the stylesheet are implicitly closed.
:param tokens:
a *flat* iterable of tokens, as returned by :func:`tokenize_flat`.
:return:
A tree of tokens.
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