.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples/lark_grammar.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_examples_lark_grammar.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_examples_lark_grammar.py:


Lark Grammar
============

A reference implementation of the Lark grammar (using LALR(1))

.. GENERATED FROM PYTHON SOURCE LINES 7-37

.. code-block:: default

    import lark
    from pathlib import Path

    examples_path = Path(__file__).parent
    lark_path = Path(lark.__file__).parent

    parser = lark.Lark.open(lark_path / 'grammars/lark.lark', rel_to=__file__, parser="lalr")


    grammar_files = [
        examples_path / 'advanced/python2.lark',
        examples_path / 'relative-imports/multiples.lark',
        examples_path / 'relative-imports/multiple2.lark',
        examples_path / 'relative-imports/multiple3.lark',
        examples_path / 'tests/no_newline_at_end.lark',
        examples_path / 'tests/negative_priority.lark',
        examples_path / 'standalone/json.lark',
        lark_path / 'grammars/common.lark',
        lark_path / 'grammars/lark.lark',
        lark_path / 'grammars/unicode.lark',
        lark_path / 'grammars/python.lark',
    ]

    def test():
        for grammar_file in grammar_files:
            tree = parser.parse(open(grammar_file).read())
        print("All grammars parsed successfully")

    if __name__ == '__main__':
        test()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.000 seconds)


.. _sphx_glr_download_examples_lark_grammar.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example




    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: lark_grammar.py <lark_grammar.py>`

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: lark_grammar.ipynb <lark_grammar.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_