comparison venv/lib/python2.7/site-packages/MarkupSafe-0.23-py2.7.egg-info/PKG-INFO @ 0:d67268158946 draft

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date Mon, 12 Oct 2015 17:43:33 -0400
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1 Metadata-Version: 1.1
2 Name: MarkupSafe
3 Version: 0.23
4 Summary: Implements a XML/HTML/XHTML Markup safe string for Python
5 Home-page: http://github.com/mitsuhiko/markupsafe
6 Author: Armin Ronacher
7 Author-email: armin.ronacher@active-4.com
8 License: BSD
9 Description: MarkupSafe
10 ==========
11
12 Implements a unicode subclass that supports HTML strings:
13
14 >>> from markupsafe import Markup, escape
15 >>> escape("<script>alert(document.cookie);</script>")
16 Markup(u'&lt;script&gt;alert(document.cookie);&lt;/script&gt;')
17 >>> tmpl = Markup("<em>%s</em>")
18 >>> tmpl % "Peter > Lustig"
19 Markup(u'<em>Peter &gt; Lustig</em>')
20
21 If you want to make an object unicode that is not yet unicode
22 but don't want to lose the taint information, you can use the
23 `soft_unicode` function. (On Python 3 you can also use `soft_str` which
24 is a different name for the same function).
25
26 >>> from markupsafe import soft_unicode
27 >>> soft_unicode(42)
28 u'42'
29 >>> soft_unicode(Markup('foo'))
30 Markup(u'foo')
31
32 HTML Representations
33 --------------------
34
35 Objects can customize their HTML markup equivalent by overriding
36 the `__html__` function:
37
38 >>> class Foo(object):
39 ... def __html__(self):
40 ... return '<strong>Nice</strong>'
41 ...
42 >>> escape(Foo())
43 Markup(u'<strong>Nice</strong>')
44 >>> Markup(Foo())
45 Markup(u'<strong>Nice</strong>')
46
47 Silent Escapes
48 --------------
49
50 Since MarkupSafe 0.10 there is now also a separate escape function
51 called `escape_silent` that returns an empty string for `None` for
52 consistency with other systems that return empty strings for `None`
53 when escaping (for instance Pylons' webhelpers).
54
55 If you also want to use this for the escape method of the Markup
56 object, you can create your own subclass that does that::
57
58 from markupsafe import Markup, escape_silent as escape
59
60 class SilentMarkup(Markup):
61 __slots__ = ()
62
63 @classmethod
64 def escape(cls, s):
65 return cls(escape(s))
66
67 New-Style String Formatting
68 ---------------------------
69
70 Starting with MarkupSafe 0.21 new style string formats from Python 2.6 and
71 3.x are now fully supported. Previously the escape behavior of those
72 functions was spotty at best. The new implementations operates under the
73 following algorithm:
74
75 1. if an object has an ``__html_format__`` method it is called as
76 replacement for ``__format__`` with the format specifier. It either
77 has to return a string or markup object.
78 2. if an object has an ``__html__`` method it is called.
79 3. otherwise the default format system of Python kicks in and the result
80 is HTML escaped.
81
82 Here is how you can implement your own formatting::
83
84 class User(object):
85
86 def __init__(self, id, username):
87 self.id = id
88 self.username = username
89
90 def __html_format__(self, format_spec):
91 if format_spec == 'link':
92 return Markup('<a href="/user/{0}">{1}</a>').format(
93 self.id,
94 self.__html__(),
95 )
96 elif format_spec:
97 raise ValueError('Invalid format spec')
98 return self.__html__()
99
100 def __html__(self):
101 return Markup('<span class=user>{0}</span>').format(self.username)
102
103 And to format that user:
104
105 >>> user = User(1, 'foo')
106 >>> Markup('<p>User: {0:link}').format(user)
107 Markup(u'<p>User: <a href="/user/1"><span class=user>foo</span></a>')
108
109 Platform: UNKNOWN
110 Classifier: Development Status :: 5 - Production/Stable
111 Classifier: Environment :: Web Environment
112 Classifier: Intended Audience :: Developers
113 Classifier: License :: OSI Approved :: BSD License
114 Classifier: Operating System :: OS Independent
115 Classifier: Programming Language :: Python
116 Classifier: Programming Language :: Python :: 3
117 Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content
118 Classifier: Topic :: Software Development :: Libraries :: Python Modules
119 Classifier: Topic :: Text Processing :: Markup :: HTML