Quelle README Sprache: C

|Donate| |PyPI Version| |PyPI License| |PyPI Format| |PyPI Status|

**Esprima** (`esprima.org <http://esprima.org>`__, BSD license) is a
high performance, standard-compliant
`ECMAScript <http://www.ecma-international.org/publications/standards/Ecma-262.htm>`__
parser officially written in ECMAScript (also popularly known as
`JavaScript <https://en.wikipedia.org/wiki/JavaScript>`__) and ported to
Python. Esprima is created and maintained by `Ariya
Hidayat <https://twitter.com/ariyahidayat>`__, with the help of `many
contributors <https://github.com/jquery/esprima/contributors>`__.

Python port is a line-by-line manual translation and was created and is
maintained by `German Mendez Bravo
(Kronuz) <https://twitter.com/germbravo>`__.

Features
~~~~~~~~

-  Full support for ECMAScript 2017 (`ECMA-262 8th
   Edition <http://www.ecma-international.org/publications/standards/Ecma-262.htm>`__)
-  Sensible `syntax tree
   format <https://github.com/estree/estree/blob/master/es5.md>`__ as
   standardized by `ESTree project <https://github.com/estree/estree>`__
-  Experimental support for `JSX <https://facebook.github.io/jsx/>`__, a
   syntax extension for `React <https://facebook.github.io/react/>`__
-  Optional tracking of syntax node location (index-based and
   line-column)
-  `Heavily tested <http://esprima.org/test/ci.html>`__ (~1500 `unit
   tests <https://github.com/jquery/esprima/tree/master/test/fixtures>`__
   with `full code
   coverage <https://codecov.io/github/jquery/esprima>`__)

Installation
~~~~~~~~~~~~

.. code:: shell

    pip install esprima

API
~~~

Esprima can be used to perform `lexical
analysis <https://en.wikipedia.org/wiki/Lexical_analysis>`__
(tokenization) or `syntactic
analysis <https://en.wikipedia.org/wiki/Parsing>`__ (parsing) of a
JavaScript program.

A simple example:

.. code:: javascript

    >>> import esprima
    >>> program = 'const answer = 42'

    >>> esprima.tokenize(program)
    [{
        type: "Keyword",
        value: "const"
    }, {
        type: "Identifier",
        value: "answer"
    }, {
        type: "Punctuator",
        value: "="
    }, {
        type: "Numeric",
        value: "42"
    }]

    >>> esprima.parseScript(program)
    {
        body: [
            {
                kind: "const",
                declarations: [
                    {
                        init: {
                            raw: "42",
                            type: "Literal",
                            value: 42
                        },
                        type: "VariableDeclarator",
                        id: {
                            type: "Identifier",
                            name: "answer"
                        }
                    }
                ],
                type: "VariableDeclaration"
            }
        ],
        type: "Program",
        sourceType: "script"
    }

For more information, please read the `complete
documentation <http://esprima.org/doc>`__.

.. |Donate| image:: https://img.shields.io/badge/Donate-PayPal-green.svg
   :target: https://www.paypal.me/Kronuz/25
.. |PyPI Version| image:: https://img.shields.io/pypi/v/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI License| image:: https://img.shields.io/pypi/l/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Wheel| image:: https://img.shields.io/pypi/wheel/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Format| image:: https://img.shields.io/pypi/format/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Python Version| image:: https://img.shields.io/pypi/pyversions/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Implementation| image:: https://img.shields.io/pypi/implementation/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Status| image:: https://img.shields.io/pypi/status/esprima.svg
   :target: https://pypi.python.org/pypi/esprima
.. |PyPI Downloads| image:: https://img.shields.io/pypi/dm/esprima.svg
   :target: https://pypi.python.org/pypi/esprima

¤ Dauer der Verarbeitung: 0.28 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.