twisted.web.template module documentationtwisted.web
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HTML rendering for twisted.web.
| Variable | VALID_HTML_TAG_NAMES | A list of recognized HTML tag names, used by the tag object. |
| Variable | TEMPLATE_NAMESPACE | The XML namespace used to identify attributes and elements used by the templating system, which should be removed from the final output document. |
| Variable | tags | A convenience object which can produce Tag objects on demand
via attribute access. For example: tags.div is equivalent to
Tag("div"). Tags not specified in VALID_HTML_TAG_NAMES
will result in an AttributeError. |
| Class | Tag | No summary |
| Class | slot | Marker for markup insertion in a template. |
| Class | Comment | A <!-- --> comment from a template. Given a separate
representation in the DOM so that they may be round-tripped through
rendering without losing information. |
| Class | CDATA | A <![CDATA[]]> block from a template. Given a
separate representation in the DOM so that they may be round-tripped
through rendering without losing information. |
| Class | CharRef | A numeric character reference. Given a separate representation in the DOM so that non-ASCII characters may be output as pure ASCII. |
| Class | TagLoader | An ITemplateLoader
that loads existing IRenderable
providers. |
| Class | XMLString | An ITemplateLoader
that loads and parses XML from a string. |
| Class | XMLFile | An ITemplateLoader
that loads and parses XML from a file. |
| Function | renderElement | Render an element or other IRenderable. |
| Class | Element | Base for classes which can render part of a page. |
| Function | renderer | Decorate with renderer to use
methods as template render directives. |
| Function | flatten | Incrementally write out a string representation of root
using write. |
| Function | flattenString | Collate a string representation of root into a single
string. |
| Class | _NSContext | A mapping from XML namespaces onto their prefixes in the document. |
| Class | _ToStan | A SAX parser which converts an XML document to the Twisted STAN Document Object Model. |
| Function | _flatsaxParse | Perform a SAX parse of an XML document with the _ToStan class. |
| Class | _TagFactory | A factory for Tag objects; the
implementation of the tags object. |
Tag objects on demand
via attribute access. For example: tags.div is equivalent to
Tag("div"). Tags not specified in VALID_HTML_TAG_NAMES
will result in an AttributeError.
Perform a SAX parse of an XML document with the _ToStan class.
| Parameters | fl | The XML document to be parsed. (type: A file object or filename.) |
| Returns | a list of Stan objects. | |
Render an element or other IRenderable.
| Parameters | request | The Request being rendered to. |
| element | An IRenderable which will be rendered. | |
| doctype | A bytes which will be written as the first line of the
request, or None to disable writing of a doctype. The
string should not include a trailing newline and will default
to the HTML5 doctype '<!DOCTYPE html>'. | |
| Returns | NOT_DONE_YET | |
| Present Since | 12.1 | |
Decorate with renderer to use
methods as template render directives.
For example:
class Foo(Element):
@renderer
def twiddle(self, request, tag):
return tag('Hello, world.')
<div xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">
<span t:render="twiddle" />
</div>
Will result in this final output:
<div>
<span>Hello, world.</span>
</div>
Incrementally write out a string representation of root
using write.
In order to create a string representation, root will be
decomposed into simpler objects which will themselves be decomposed and so
on until strings or objects which can easily be converted to strings are
encountered.
| Parameters | request | A request object which will be passed to the render method of
any IRenderable
provider which is encountered. |
| root | An object to be made flatter. This may be of type unicode,
bytes,
slot, Tag, tuple,
list,
GeneratorType, Deferred, or
something that provides IRenderable. | |
| write | A callable which will be invoked with each bytes
produced by flattening root. | |
| Returns | A Deferred
which will be called back when root has been completely
flattened into write or which will be errbacked if an
unexpected exception occurs. | |
Collate a string representation of root into a single
string.
This is basically gluing flatten to a NativeStringIO
and returning the results. See flatten for the
exact meanings of request and root.
| Returns | A Deferred
which will be called back with a single string as its result when
root has been completely flattened into write or
which will be errbacked if an unexpected exception occurs. | |