Mercurial > genshi > mirror
annotate genshi/builder.py @ 730:5e9d250ad3ad trunk
Fix for potential duplicate attributes making it through the builder API. Closes #216.
| author | cmlenz |
|---|---|
| date | Sat, 31 May 2008 21:34:16 +0000 |
| parents | 0ea38a6cf173 |
| children | 7e428b22dbaa |
| rev | line source |
|---|---|
| 1 | 1 # -*- coding: utf-8 -*- |
| 2 # | |
| 408 | 3 # Copyright (C) 2006-2007 Edgewall Software |
| 1 | 4 # All rights reserved. |
| 5 # | |
| 6 # This software is licensed as described in the file COPYING, which | |
| 7 # you should have received as part of this distribution. The terms | |
| 230 | 8 # are also available at http://genshi.edgewall.org/wiki/License. |
| 1 | 9 # |
| 10 # This software consists of voluntary contributions made by many | |
| 11 # individuals. For the exact contribution history, see the revision | |
| 230 | 12 # history and logs, available at http://genshi.edgewall.org/log/. |
| 1 | 13 |
| 430 | 14 """Support for programmatically generating markup streams from Python code using |
| 15 a very simple syntax. The main entry point to this module is the `tag` object | |
| 16 (which is actually an instance of the ``ElementFactory`` class). You should | |
| 17 rarely (if ever) need to directly import and use any of the other classes in | |
| 18 this module. | |
| 19 | |
| 20 Elements can be created using the `tag` object using attribute access. For | |
| 21 example: | |
| 22 | |
| 23 >>> doc = tag.p('Some text and ', tag.a('a link', href='http://example.org/'), '.') | |
| 24 >>> doc | |
| 25 <Element "p"> | |
| 26 | |
| 27 This produces an `Element` instance which can be further modified to add child | |
| 28 nodes and attributes. This is done by "calling" the element: positional | |
| 29 arguments are added as child nodes (alternatively, the `Element.append` method | |
| 30 can be used for that purpose), whereas keywords arguments are added as | |
| 31 attributes: | |
| 32 | |
| 33 >>> doc(tag.br) | |
| 34 <Element "p"> | |
| 35 >>> print doc | |
| 36 <p>Some text and <a href="http://example.org/">a link</a>.<br/></p> | |
| 37 | |
| 38 If an attribute name collides with a Python keyword, simply append an underscore | |
| 39 to the name: | |
| 40 | |
| 41 >>> doc(class_='intro') | |
| 42 <Element "p"> | |
| 43 >>> print doc | |
| 44 <p class="intro">Some text and <a href="http://example.org/">a link</a>.<br/></p> | |
| 45 | |
| 46 As shown above, an `Element` can easily be directly rendered to XML text by | |
| 47 printing it or using the Python ``str()`` function. This is basically a | |
| 48 shortcut for converting the `Element` to a stream and serializing that | |
| 49 stream: | |
| 50 | |
| 51 >>> stream = doc.generate() | |
|
431
ad01564e87f2
* Don't allow `style` attributes by default in the `HTMLSanitizer`. Closes #97.
cmlenz
parents:
430
diff
changeset
|
52 >>> stream #doctest: +ELLIPSIS |
| 430 | 53 <genshi.core.Stream object at ...> |
| 54 >>> print stream | |
| 55 <p class="intro">Some text and <a href="http://example.org/">a link</a>.<br/></p> | |
| 56 | |
| 57 | |
| 58 The `tag` object also allows creating "fragments", which are basically lists | |
| 59 of nodes (elements or text) that don't have a parent element. This can be useful | |
| 60 for creating snippets of markup that are attached to a parent element later (for | |
| 61 example in a template). Fragments are created by calling the `tag` object, which | |
| 62 returns an object of type `Fragment`: | |
| 63 | |
| 64 >>> fragment = tag('Hello, ', tag.em('world'), '!') | |
| 65 >>> fragment | |
| 66 <Fragment> | |
| 67 >>> print fragment | |
| 68 Hello, <em>world</em>! | |
| 69 """ | |
|
425
073640758a42
Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents:
410
diff
changeset
|
70 |
|
730
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
71 try: |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
72 set |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
73 except NameError: |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
74 from sets import Set as set |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
75 |
| 230 | 76 from genshi.core import Attrs, Namespace, QName, Stream, START, END, TEXT |
| 1 | 77 |
| 433 | 78 __all__ = ['Fragment', 'Element', 'ElementFactory', 'tag'] |
|
425
073640758a42
Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents:
410
diff
changeset
|
79 __docformat__ = 'restructuredtext en' |
| 1 | 80 |
| 81 | |
| 82 class Fragment(object): | |
| 28 | 83 """Represents a markup fragment, which is basically just a list of element |
| 84 or text nodes. | |
| 85 """ | |
| 1 | 86 __slots__ = ['children'] |
| 87 | |
| 88 def __init__(self): | |
| 433 | 89 """Create a new fragment.""" |
| 1 | 90 self.children = [] |
| 91 | |
|
65
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
92 def __add__(self, other): |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
93 return Fragment()(self, other) |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
94 |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
95 def __call__(self, *args): |
| 433 | 96 """Append any positional arguments as child nodes. |
| 97 | |
| 98 :see: `append` | |
| 99 """ | |
|
133
79f445396cd7
Minor cleanup and performance improvement for the builder module.
cmlenz
parents:
119
diff
changeset
|
100 map(self.append, args) |
|
65
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
101 return self |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
102 |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
103 def __iter__(self): |
|
98
44af12832c5a
Bugfix in `builder` module: attribute values need to be converted to strings when generating streams.
cmlenz
parents:
94
diff
changeset
|
104 return self._generate() |
|
65
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
105 |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
106 def __repr__(self): |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
107 return '<%s>' % self.__class__.__name__ |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
108 |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
109 def __str__(self): |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
110 return str(self.generate()) |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
111 |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
112 def __unicode__(self): |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
113 return unicode(self.generate()) |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
114 |
| 1 | 115 def append(self, node): |
| 433 | 116 """Append an element or string as child node. |
| 117 | |
| 118 :param node: the node to append; can be an `Element`, `Fragment`, or a | |
| 119 `Stream`, or a Python string or number | |
| 120 """ | |
|
379
e1d659c87ddf
The builder API now accepts streams as children of elements and fragments.
cmlenz
parents:
345
diff
changeset
|
121 if isinstance(node, (Stream, Element, basestring, int, float, long)): |
| 1 | 122 # For objects of a known/primitive type, we avoid the check for |
| 123 # whether it is iterable for better performance | |
| 124 self.children.append(node) | |
| 125 elif isinstance(node, Fragment): | |
|
133
79f445396cd7
Minor cleanup and performance improvement for the builder module.
cmlenz
parents:
119
diff
changeset
|
126 self.children.extend(node.children) |
| 1 | 127 elif node is not None: |
| 128 try: | |
|
506
0ea38a6cf173
Use explicit buffer class in transformer filter, and revert the breaking change to the builder module.
cmlenz
parents:
501
diff
changeset
|
129 map(self.append, iter(node)) |
| 1 | 130 except TypeError: |
| 131 self.children.append(node) | |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
132 |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
133 def _generate(self): |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
134 for child in self.children: |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
135 if isinstance(child, Fragment): |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
136 for event in child._generate(): |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
137 yield event |
|
379
e1d659c87ddf
The builder API now accepts streams as children of elements and fragments.
cmlenz
parents:
345
diff
changeset
|
138 elif isinstance(child, Stream): |
|
e1d659c87ddf
The builder API now accepts streams as children of elements and fragments.
cmlenz
parents:
345
diff
changeset
|
139 for event in child: |
|
e1d659c87ddf
The builder API now accepts streams as children of elements and fragments.
cmlenz
parents:
345
diff
changeset
|
140 yield event |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
141 else: |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
142 if not isinstance(child, basestring): |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
143 child = unicode(child) |
|
133
79f445396cd7
Minor cleanup and performance improvement for the builder module.
cmlenz
parents:
119
diff
changeset
|
144 yield TEXT, child, (None, -1, -1) |
| 1 | 145 |
| 146 def generate(self): | |
| 498 | 147 """Return a markup event stream for the fragment. |
| 148 | |
| 149 :rtype: `Stream` | |
| 150 """ | |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
151 return Stream(self._generate()) |
| 1 | 152 |
| 153 | |
| 345 | 154 def _kwargs_to_attrs(kwargs): |
|
730
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
155 retval = {} |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
156 for name, value in kwargs.items(): |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
157 name = name.rstrip('_').replace('_', '-') |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
158 if value is not None and name not in retval: |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
159 retval[QName(name)] = unicode(value) |
|
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
160 return Attrs(retval.items()) |
| 345 | 161 |
| 162 | |
| 1 | 163 class Element(Fragment): |
| 164 """Simple XML output generator based on the builder pattern. | |
| 165 | |
| 166 Construct XML elements by passing the tag name to the constructor: | |
| 167 | |
| 168 >>> print Element('strong') | |
| 169 <strong/> | |
| 170 | |
| 171 Attributes can be specified using keyword arguments. The values of the | |
| 172 arguments will be converted to strings and any special XML characters | |
| 173 escaped: | |
| 174 | |
| 175 >>> print Element('textarea', rows=10, cols=60) | |
| 176 <textarea rows="10" cols="60"/> | |
| 177 >>> print Element('span', title='1 < 2') | |
| 178 <span title="1 < 2"/> | |
| 179 >>> print Element('span', title='"baz"') | |
| 180 <span title=""baz""/> | |
| 181 | |
| 182 The " character is escaped using a numerical entity. | |
| 183 The order in which attributes are rendered is undefined. | |
| 184 | |
| 185 If an attribute value evaluates to `None`, that attribute is not included | |
| 186 in the output: | |
| 187 | |
| 188 >>> print Element('a', name=None) | |
| 189 <a/> | |
| 190 | |
| 191 Attribute names that conflict with Python keywords can be specified by | |
| 192 appending an underscore: | |
| 193 | |
| 194 >>> print Element('div', class_='warning') | |
| 195 <div class="warning"/> | |
| 196 | |
| 197 Nested elements can be added to an element using item access notation. | |
| 198 The call notation can also be used for this and for adding attributes | |
| 199 using keyword arguments, as one would do in the constructor. | |
| 200 | |
| 201 >>> print Element('ul')(Element('li'), Element('li')) | |
| 202 <ul><li/><li/></ul> | |
| 203 >>> print Element('a')('Label') | |
| 204 <a>Label</a> | |
| 205 >>> print Element('a')('Label', href="target") | |
| 206 <a href="target">Label</a> | |
| 207 | |
| 208 Text nodes can be nested in an element by adding strings instead of | |
| 209 elements. Any special characters in the strings are escaped automatically: | |
| 210 | |
| 211 >>> print Element('em')('Hello world') | |
| 212 <em>Hello world</em> | |
| 213 >>> print Element('em')(42) | |
| 214 <em>42</em> | |
| 215 >>> print Element('em')('1 < 2') | |
| 216 <em>1 < 2</em> | |
| 217 | |
| 218 This technique also allows mixed content: | |
| 219 | |
| 220 >>> print Element('p')('Hello ', Element('b')('world')) | |
| 221 <p>Hello <b>world</b></p> | |
| 222 | |
| 34 | 223 Quotes are not escaped inside text nodes: |
| 224 >>> print Element('p')('"Hello"') | |
| 225 <p>"Hello"</p> | |
| 226 | |
| 1 | 227 Elements can also be combined with other elements or strings using the |
| 228 addition operator, which results in a `Fragment` object that contains the | |
| 229 operands: | |
| 230 | |
| 231 >>> print Element('br') + 'some text' + Element('br') | |
| 232 <br/>some text<br/> | |
| 233 | |
| 234 Elements with a namespace can be generated using the `Namespace` and/or | |
| 235 `QName` classes: | |
| 236 | |
| 230 | 237 >>> from genshi.core import Namespace |
| 1 | 238 >>> xhtml = Namespace('http://www.w3.org/1999/xhtml') |
| 239 >>> print Element(xhtml.html, lang='en') | |
|
410
d14d89995c29
Improve the handling of namespaces in serialization.
cmlenz
parents:
408
diff
changeset
|
240 <html xmlns="http://www.w3.org/1999/xhtml" lang="en"/> |
| 1 | 241 """ |
| 242 __slots__ = ['tag', 'attrib'] | |
| 243 | |
| 244 def __init__(self, tag_, **attrib): | |
| 245 Fragment.__init__(self) | |
| 246 self.tag = QName(tag_) | |
|
730
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
247 self.attrib = _kwargs_to_attrs(attrib) |
| 1 | 248 |
| 249 def __call__(self, *args, **kwargs): | |
| 433 | 250 """Append any positional arguments as child nodes, and keyword arguments |
| 251 as attributes. | |
| 252 | |
| 498 | 253 :return: the element itself so that calls can be chained |
| 254 :rtype: `Element` | |
| 433 | 255 :see: `Fragment.append` |
| 256 """ | |
|
730
5e9d250ad3ad
Fix for potential duplicate attributes making it through the builder API. Closes #216.
cmlenz
parents:
506
diff
changeset
|
257 self.attrib |= _kwargs_to_attrs(kwargs) |
|
98
44af12832c5a
Bugfix in `builder` module: attribute values need to be converted to strings when generating streams.
cmlenz
parents:
94
diff
changeset
|
258 Fragment.__call__(self, *args) |
|
44af12832c5a
Bugfix in `builder` module: attribute values need to be converted to strings when generating streams.
cmlenz
parents:
94
diff
changeset
|
259 return self |
| 1 | 260 |
|
65
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
261 def __repr__(self): |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
262 return '<%s "%s">' % (self.__class__.__name__, self.tag) |
|
b3fdf93057ab
Support the use of directives as elements to reduce the need for using `py:strip`.
cmlenz
parents:
34
diff
changeset
|
263 |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
264 def _generate(self): |
|
133
79f445396cd7
Minor cleanup and performance improvement for the builder module.
cmlenz
parents:
119
diff
changeset
|
265 yield START, (self.tag, self.attrib), (None, -1, -1) |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
266 for kind, data, pos in Fragment._generate(self): |
|
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
267 yield kind, data, pos |
|
133
79f445396cd7
Minor cleanup and performance improvement for the builder module.
cmlenz
parents:
119
diff
changeset
|
268 yield END, self.tag, (None, -1, -1) |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
269 |
| 1 | 270 def generate(self): |
| 498 | 271 """Return a markup event stream for the fragment. |
| 272 | |
| 273 :rtype: `Stream` | |
| 274 """ | |
|
94
0f8800c46e21
Some bugfixes and minor performance improvements for the builder module.
cmlenz
parents:
91
diff
changeset
|
275 return Stream(self._generate()) |
| 1 | 276 |
| 277 | |
| 278 class ElementFactory(object): | |
| 28 | 279 """Factory for `Element` objects. |
| 280 | |
| 281 A new element is created simply by accessing a correspondingly named | |
| 282 attribute of the factory object: | |
| 283 | |
| 284 >>> factory = ElementFactory() | |
| 285 >>> print factory.foo | |
| 286 <foo/> | |
| 287 >>> print factory.foo(id=2) | |
| 288 <foo id="2"/> | |
| 289 | |
|
119
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
290 Markup fragments (lists of nodes without a parent element) can be created |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
291 by calling the factory: |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
292 |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
293 >>> print factory('Hello, ', factory.em('world'), '!') |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
294 Hello, <em>world</em>! |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
295 |
| 28 | 296 A factory can also be bound to a specific namespace: |
| 297 | |
| 298 >>> factory = ElementFactory('http://www.w3.org/1999/xhtml') | |
| 299 >>> print factory.html(lang="en") | |
|
410
d14d89995c29
Improve the handling of namespaces in serialization.
cmlenz
parents:
408
diff
changeset
|
300 <html xmlns="http://www.w3.org/1999/xhtml" lang="en"/> |
| 28 | 301 |
| 302 The namespace for a specific element can be altered on an existing factory | |
| 303 by specifying the new namespace using item access: | |
| 304 | |
| 305 >>> factory = ElementFactory() | |
| 306 >>> print factory.html(factory['http://www.w3.org/2000/svg'].g(id=3)) | |
|
410
d14d89995c29
Improve the handling of namespaces in serialization.
cmlenz
parents:
408
diff
changeset
|
307 <html><g xmlns="http://www.w3.org/2000/svg" id="3"/></html> |
| 28 | 308 |
| 309 Usually, the `ElementFactory` class is not be used directly. Rather, the | |
| 310 `tag` instance should be used to create elements. | |
| 311 """ | |
| 1 | 312 |
|
19
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
313 def __init__(self, namespace=None): |
| 28 | 314 """Create the factory, optionally bound to the given namespace. |
| 315 | |
|
425
073640758a42
Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents:
410
diff
changeset
|
316 :param namespace: the namespace URI for any created elements, or `None` |
|
073640758a42
Try to use proper reStructuredText for docstrings throughout.
cmlenz
parents:
410
diff
changeset
|
317 for no namespace |
| 28 | 318 """ |
| 20 | 319 if namespace and not isinstance(namespace, Namespace): |
|
19
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
320 namespace = Namespace(namespace) |
|
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
321 self.namespace = namespace |
|
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
322 |
|
119
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
323 def __call__(self, *args): |
| 433 | 324 """Create a fragment that has the given positional arguments as child |
| 325 nodes. | |
| 326 | |
| 327 :return: the created `Fragment` | |
| 498 | 328 :rtype: `Fragment` |
| 433 | 329 """ |
|
119
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
330 return Fragment()(*args) |
|
cc2aee07f53b
Allow creating fragments from the `tag` object in `markup.builder`.
cmlenz
parents:
98
diff
changeset
|
331 |
|
19
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
332 def __getitem__(self, namespace): |
| 433 | 333 """Return a new factory that is bound to the specified namespace. |
| 334 | |
| 335 :param namespace: the namespace URI or `Namespace` object | |
| 336 :return: an `ElementFactory` that produces elements bound to the given | |
| 337 namespace | |
| 498 | 338 :rtype: `ElementFactory` |
| 433 | 339 """ |
|
19
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
340 return ElementFactory(namespace) |
|
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
341 |
|
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
342 def __getattr__(self, name): |
| 433 | 343 """Create an `Element` with the given name. |
| 344 | |
| 345 :param name: the tag name of the element to create | |
| 346 :return: an `Element` with the specified name | |
| 498 | 347 :rtype: `Element` |
| 433 | 348 """ |
|
19
704f10b06507
Enable `ElementFactory` to create namespaced elements.
cmlenz
parents:
17
diff
changeset
|
349 return Element(self.namespace and self.namespace[name] or name) |
| 1 | 350 |
| 351 | |
| 352 tag = ElementFactory() | |
| 498 | 353 """Global `ElementFactory` bound to the default namespace. |
| 354 | |
| 355 :type: `ElementFactory` | |
| 356 """ |