Metadata-Version: 2.1 Name: MarkupSafe Version: 1.0 Summary: Implements a XML/HTML/XHTML Markup safe string for Python Home-page: http://github.com/pallets/markupsafe Author: Armin Ronacher Author-email: armin.ronacher@active-4.com License: BSD Platform: UNKNOWN Classifier: Development Status :: 5 - Production/Stable Classifier: Environment :: Web Environment Classifier: Intended Audience :: Developers Classifier: License :: OSI Approved :: BSD License Classifier: Operating System :: OS Independent Classifier: Programming Language :: Python Classifier: Programming Language :: Python :: 3 Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content Classifier: Topic :: Software Development :: Libraries :: Python Modules Classifier: Topic :: Text Processing :: Markup :: HTML MarkupSafe ========== Implements a unicode subclass that supports HTML strings: .. code-block:: python >>> from markupsafe import Markup, escape >>> escape("") Markup(u'<script>alert(document.cookie);</script>') >>> tmpl = Markup("%s") >>> tmpl % "Peter > Lustig" Markup(u'Peter > Lustig') If you want to make an object unicode that is not yet unicode but don't want to lose the taint information, you can use the ``soft_unicode`` function. (On Python 3 you can also use ``soft_str`` which is a different name for the same function). .. code-block:: python >>> from markupsafe import soft_unicode >>> soft_unicode(42) u'42' >>> soft_unicode(Markup('foo')) Markup(u'foo') HTML Representations -------------------- Objects can customize their HTML markup equivalent by overriding the ``__html__`` function: .. code-block:: python >>> class Foo(object): ... def __html__(self): ... return 'Nice' ... >>> escape(Foo()) Markup(u'Nice') >>> Markup(Foo()) Markup(u'Nice') Silent Escapes -------------- Since MarkupSafe 0.10 there is now also a separate escape function called ``escape_silent`` that returns an empty string for ``None`` for consistency with other systems that return empty strings for ``None`` when escaping (for instance Pylons' webhelpers). If you also want to use this for the escape method of the Markup object, you can create your own subclass that does that: .. code-block:: python from markupsafe import Markup, escape_silent as escape class SilentMarkup(Markup): __slots__ = () @classmethod def escape(cls, s): return cls(escape(s)) New-Style String Formatting --------------------------- Starting with MarkupSafe 0.21 new style string formats from Python 2.6 and 3.x are now fully supported. Previously the escape behavior of those functions was spotty at best. The new implementations operates under the following algorithm: 1. if an object has an ``__html_format__`` method it is called as replacement for ``__format__`` with the format specifier. It either has to return a string or markup object. 2. if an object has an ``__html__`` method it is called. 3. otherwise the default format system of Python kicks in and the result is HTML escaped. Here is how you can implement your own formatting: .. code-block:: python class User(object): def __init__(self, id, username): self.id = id self.username = username def __html_format__(self, format_spec): if format_spec == 'link': return Markup('{1}').format( self.id, self.__html__(), ) elif format_spec: raise ValueError('Invalid format spec') return self.__html__() def __html__(self): return Markup('{0}').format(self.username) And to format that user: .. code-block:: python >>> user = User(1, 'foo') >>> Markup('

User: {0:link}').format(user) Markup(u'

User: foo') Markupsafe supports Python 2.6, 2.7 and Python 3.3 and higher.