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.. _full-grammar-specification:
Full Grammar specification
==========================
This is the full Python grammar, derived directly from the grammar
used to generate the CPython parser (see :source:`Grammar/python.gram`).
The version here omits details related to code generation and
error recovery.
The notation used here is the same as in the preceding docs,
and is described in the :ref:`notation <notation>` section,
except for a few extra complications:
* ``&e``: a positive lookahead (that is, ``e`` is required to match but
not consumed)
* ``!e``: a negative lookahead (that is, ``e`` is required *not* to match)
* ``~`` ("cut"): commit to the current alternative and fail the rule
even if this fails to parse
.. literalinclude:: ../../Grammar/python.gram
:language: peg
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