You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
127 lines
4.9 KiB
Plaintext
127 lines
4.9 KiB
Plaintext
Metadata-Version: 2.4
|
|
Name: pyparsing
|
|
Version: 3.2.5
|
|
Summary: pyparsing - Classes and methods to define and execute parsing grammars
|
|
Author-email: Paul McGuire <ptmcg.gm+pyparsing@gmail.com>
|
|
Requires-Python: >=3.9
|
|
Description-Content-Type: text/x-rst
|
|
License-Expression: MIT
|
|
Classifier: Development Status :: 5 - Production/Stable
|
|
Classifier: Intended Audience :: Developers
|
|
Classifier: Intended Audience :: Information Technology
|
|
Classifier: Operating System :: OS Independent
|
|
Classifier: Programming Language :: Python
|
|
Classifier: Programming Language :: Python :: 3
|
|
Classifier: Programming Language :: Python :: 3.9
|
|
Classifier: Programming Language :: Python :: 3.10
|
|
Classifier: Programming Language :: Python :: 3.11
|
|
Classifier: Programming Language :: Python :: 3.12
|
|
Classifier: Programming Language :: Python :: 3.13
|
|
Classifier: Programming Language :: Python :: 3.14
|
|
Classifier: Programming Language :: Python :: 3 :: Only
|
|
Classifier: Programming Language :: Python :: Implementation :: CPython
|
|
Classifier: Programming Language :: Python :: Implementation :: PyPy
|
|
Classifier: Topic :: Software Development :: Compilers
|
|
Classifier: Topic :: Text Processing
|
|
Classifier: Typing :: Typed
|
|
License-File: LICENSE
|
|
Requires-Dist: railroad-diagrams ; extra == "diagrams"
|
|
Requires-Dist: jinja2 ; extra == "diagrams"
|
|
Project-URL: Homepage, https://github.com/pyparsing/pyparsing/
|
|
Provides-Extra: diagrams
|
|
|
|
PyParsing -- A Python Parsing Module
|
|
====================================
|
|
|
|
|Version| |Build Status| |Coverage| |License| |Python Versions| |Snyk Score|
|
|
|
|
Introduction
|
|
============
|
|
|
|
The pyparsing module is an alternative approach to creating and
|
|
executing simple grammars, vs. the traditional lex/yacc approach, or the
|
|
use of regular expressions. The pyparsing module provides a library of
|
|
classes that client code uses to construct the grammar directly in
|
|
Python code.
|
|
|
|
*[Since first writing this description of pyparsing in late 2003, this
|
|
technique for developing parsers has become more widespread, under the
|
|
name Parsing Expression Grammars - PEGs. See more information on PEGs*
|
|
`here <https://en.wikipedia.org/wiki/Parsing_expression_grammar>`__
|
|
*.]*
|
|
|
|
Here is a program to parse ``"Hello, World!"`` (or any greeting of the form
|
|
``"salutation, addressee!"``):
|
|
|
|
.. code:: python
|
|
|
|
from pyparsing import Word, alphas
|
|
greet = Word(alphas) + "," + Word(alphas) + "!"
|
|
hello = "Hello, World!"
|
|
print(hello, "->", greet.parse_string(hello))
|
|
|
|
The program outputs the following::
|
|
|
|
Hello, World! -> ['Hello', ',', 'World', '!']
|
|
|
|
The Python representation of the grammar is quite readable, owing to the
|
|
self-explanatory class names, and the use of '+', '|' and '^' operator
|
|
definitions.
|
|
|
|
The parsed results returned from ``parse_string()`` is a collection of type
|
|
``ParseResults``, which can be accessed as a
|
|
nested list, a dictionary, or an object with named attributes.
|
|
|
|
The pyparsing module handles some of the problems that are typically
|
|
vexing when writing text parsers:
|
|
|
|
- extra or missing whitespace (the above program will also handle ``"Hello,World!"``, ``"Hello , World !"``, etc.)
|
|
- quoted strings
|
|
- embedded comments
|
|
|
|
The examples directory includes a simple SQL parser, simple CORBA IDL
|
|
parser, a config file parser, a chemical formula parser, and a four-
|
|
function algebraic notation parser, among many others.
|
|
|
|
Documentation
|
|
=============
|
|
|
|
There are many examples in the online docstrings of the classes
|
|
and methods in pyparsing. You can find them compiled into `online docs <https://pyparsing-docs.readthedocs.io/en/latest/>`__. Additional
|
|
documentation resources and project info are listed in the online
|
|
`GitHub wiki <https://github.com/pyparsing/pyparsing/wiki>`__. An
|
|
entire directory of examples can be found `here <https://github.com/pyparsing/pyparsing/tree/master/examples>`__.
|
|
|
|
License
|
|
=======
|
|
|
|
MIT License. See header of the `pyparsing __init__.py <https://github.com/pyparsing/pyparsing/blob/master/pyparsing/__init__.py#L1-L23>`__ file.
|
|
|
|
History
|
|
=======
|
|
|
|
See `CHANGES <https://github.com/pyparsing/pyparsing/blob/master/CHANGES>`__ file.
|
|
|
|
.. |Build Status| image:: https://github.com/pyparsing/pyparsing/actions/workflows/ci.yml/badge.svg
|
|
:target: https://github.com/pyparsing/pyparsing/actions/workflows/ci.yml
|
|
|
|
.. |Coverage| image:: https://codecov.io/gh/pyparsing/pyparsing/branch/master/graph/badge.svg
|
|
:target: https://codecov.io/gh/pyparsing/pyparsing
|
|
|
|
.. |Version| image:: https://img.shields.io/pypi/v/pyparsing?style=flat-square
|
|
:target: https://pypi.org/project/pyparsing/
|
|
:alt: Version
|
|
|
|
.. |License| image:: https://img.shields.io/pypi/l/pyparsing.svg?style=flat-square
|
|
:target: https://pypi.org/project/pyparsing/
|
|
:alt: License
|
|
|
|
.. |Python Versions| image:: https://img.shields.io/pypi/pyversions/pyparsing.svg?style=flat-square
|
|
:target: https://pypi.org/project/python-liquid/
|
|
:alt: Python versions
|
|
|
|
.. |Snyk Score| image:: https://snyk.io//advisor/python/pyparsing/badge.svg
|
|
:target: https://snyk.io//advisor/python/pyparsing
|
|
:alt: pyparsing
|
|
|