A Python parser for MediaWiki wikicode https://mwparserfromhell.readthedocs.io/
Não pode escolher mais do que 25 tópicos Os tópicos devem começar com uma letra ou um número, podem incluir traços ('-') e podem ter até 35 caracteres.

README.rst 6.0 KiB

há 12 anos
há 11 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
há 12 anos
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162
  1. mwparserfromhell
  2. ================
  3. .. image:: https://img.shields.io/travis/earwig/mwparserfromhell/develop.svg
  4. :alt: Build Status
  5. :target: http://travis-ci.org/earwig/mwparserfromhell
  6. .. image:: https://img.shields.io/coveralls/earwig/mwparserfromhell/develop.svg
  7. :alt: Coverage Status
  8. :target: https://coveralls.io/r/earwig/mwparserfromhell
  9. **mwparserfromhell** (the *MediaWiki Parser from Hell*) is a Python package
  10. that provides an easy-to-use and outrageously powerful parser for MediaWiki_
  11. wikicode. It supports Python 2 and Python 3.
  12. Developed by Earwig_ with contributions from `Σ`_, Legoktm_, and others.
  13. Full documentation is available on ReadTheDocs_. Development occurs on GitHub_.
  14. Installation
  15. ------------
  16. The easiest way to install the parser is through the `Python Package Index`_;
  17. you can install the latest release with ``pip install mwparserfromhell``
  18. (`get pip`_). On Windows, make sure you have the latest version of pip
  19. installed by running ``pip install --upgrade pip``.
  20. Alternatively, get the latest development version::
  21. git clone https://github.com/earwig/mwparserfromhell.git
  22. cd mwparserfromhell
  23. python setup.py install
  24. You can run the comprehensive unit testing suite with
  25. ``python setup.py test -q``.
  26. Usage
  27. -----
  28. Normal usage is rather straightforward (where ``text`` is page text)::
  29. >>> import mwparserfromhell
  30. >>> wikicode = mwparserfromhell.parse(text)
  31. ``wikicode`` is a ``mwparserfromhell.Wikicode`` object, which acts like an
  32. ordinary ``unicode`` object (or ``str`` in Python 3) with some extra methods.
  33. For example::
  34. >>> text = "I has a template! {{foo|bar|baz|eggs=spam}} See it?"
  35. >>> wikicode = mwparserfromhell.parse(text)
  36. >>> print wikicode
  37. I has a template! {{foo|bar|baz|eggs=spam}} See it?
  38. >>> templates = wikicode.filter_templates()
  39. >>> print templates
  40. ['{{foo|bar|baz|eggs=spam}}']
  41. >>> template = templates[0]
  42. >>> print template.name
  43. foo
  44. >>> print template.params
  45. ['bar', 'baz', 'eggs=spam']
  46. >>> print template.get(1).value
  47. bar
  48. >>> print template.get("eggs").value
  49. spam
  50. Since nodes can contain other nodes, getting nested templates is trivial::
  51. >>> text = "{{foo|{{bar}}={{baz|{{spam}}}}}}"
  52. >>> mwparserfromhell.parse(text).filter_templates()
  53. ['{{foo|{{bar}}={{baz|{{spam}}}}}}', '{{bar}}', '{{baz|{{spam}}}}', '{{spam}}']
  54. You can also pass ``recursive=False`` to ``filter_templates()`` and explore
  55. templates manually. This is possible because nodes can contain additional
  56. ``Wikicode`` objects::
  57. >>> code = mwparserfromhell.parse("{{foo|this {{includes a|template}}}}")
  58. >>> print code.filter_templates(recursive=False)
  59. ['{{foo|this {{includes a|template}}}}']
  60. >>> foo = code.filter_templates(recursive=False)[0]
  61. >>> print foo.get(1).value
  62. this {{includes a|template}}
  63. >>> print foo.get(1).value.filter_templates()[0]
  64. {{includes a|template}}
  65. >>> print foo.get(1).value.filter_templates()[0].get(1).value
  66. template
  67. Templates can be easily modified to add, remove, or alter params. ``Wikicode``
  68. objects can be treated like lists, with ``append()``, ``insert()``,
  69. ``remove()``, ``replace()``, and more. They also have a ``matches()`` method
  70. for comparing page or template names, which takes care of capitalization and
  71. whitespace::
  72. >>> text = "{{cleanup}} '''Foo''' is a [[bar]]. {{uncategorized}}"
  73. >>> code = mwparserfromhell.parse(text)
  74. >>> for template in code.filter_templates():
  75. ... if template.name.matches("Cleanup") and not template.has("date"):
  76. ... template.add("date", "July 2012")
  77. ...
  78. >>> print code
  79. {{cleanup|date=July 2012}} '''Foo''' is a [[bar]]. {{uncategorized}}
  80. >>> code.replace("{{uncategorized}}", "{{bar-stub}}")
  81. >>> print code
  82. {{cleanup|date=July 2012}} '''Foo''' is a [[bar]]. {{bar-stub}}
  83. >>> print code.filter_templates()
  84. ['{{cleanup|date=July 2012}}', '{{bar-stub}}']
  85. You can then convert ``code`` back into a regular ``unicode`` object (for
  86. saving the page!) by calling ``unicode()`` on it::
  87. >>> text = unicode(code)
  88. >>> print text
  89. {{cleanup|date=July 2012}} '''Foo''' is a [[bar]]. {{bar-stub}}
  90. >>> text == code
  91. True
  92. Likewise, use ``str(code)`` in Python 3.
  93. Integration
  94. -----------
  95. ``mwparserfromhell`` is used by and originally developed for EarwigBot_;
  96. ``Page`` objects have a ``parse`` method that essentially calls
  97. ``mwparserfromhell.parse()`` on ``page.get()``.
  98. If you're using Pywikipedia_, your code might look like this::
  99. import mwparserfromhell
  100. import wikipedia as pywikibot
  101. def parse(title):
  102. site = pywikibot.getSite()
  103. page = pywikibot.Page(site, title)
  104. text = page.get()
  105. return mwparserfromhell.parse(text)
  106. If you're not using a library, you can parse any page using the following code
  107. (via the API_)::
  108. import json
  109. import urllib
  110. import mwparserfromhell
  111. API_URL = "http://en.wikipedia.org/w/api.php"
  112. def parse(title):
  113. data = {"action": "query", "prop": "revisions", "rvlimit": 1,
  114. "rvprop": "content", "format": "json", "titles": title}
  115. raw = urllib.urlopen(API_URL, urllib.urlencode(data)).read()
  116. res = json.loads(raw)
  117. text = res["query"]["pages"].values()[0]["revisions"][0]["*"]
  118. return mwparserfromhell.parse(text)
  119. .. _MediaWiki: http://mediawiki.org
  120. .. _ReadTheDocs: http://mwparserfromhell.readthedocs.org
  121. .. _Earwig: http://en.wikipedia.org/wiki/User:The_Earwig
  122. .. _Σ: http://en.wikipedia.org/wiki/User:%CE%A3
  123. .. _Legoktm: http://en.wikipedia.org/wiki/User:Legoktm
  124. .. _GitHub: https://github.com/earwig/mwparserfromhell
  125. .. _Python Package Index: http://pypi.python.org
  126. .. _StackOverflow question: http://stackoverflow.com/questions/2817869/error-unable-to-find-vcvarsall-bat
  127. .. _get pip: http://pypi.python.org/pypi/pip
  128. .. _EarwigBot: https://github.com/earwig/earwigbot
  129. .. _Pywikipedia: https://www.mediawiki.org/wiki/Manual:Pywikipediabot
  130. .. _API: http://mediawiki.org/wiki/API