twisted.web.template

module documentation

(source)

HTML rendering for twisted.web.

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	`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	`Element`	Base for classes which can render part of a page.
Class	`slot`	Marker for markup insertion in a template.
Class	`Tag`	No summary
Class	`TagLoader`	An `ITemplateLoader` that loads existing `IRenderable` providers.
Class	`XMLFile`	An `ITemplateLoader` that loads and parses XML from a file.
Class	`XMLString`	An `ITemplateLoader` that loads and parses XML from a string.
Function	`flatten`	Incrementally write out a string representation of `root` using `write`.
Function	`flattenString`	Collate a string representation of `root` into a single string.
Function	`renderElement`	Render an element or other `IRenderable`.
Function	`renderer`	Decorate with `renderer` to use methods as template render directives.
Constant	`NOT_DONE_YET`	Undocumented
Constant	`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.
Constant	`VALID_HTML_TAG_NAMES`	A list of recognized HTML tag names, used by the `tag` object.
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	`_NSContext`	A mapping from XML namespaces onto their prefixes in the document.
Class	`_TagFactory`	A factory for `Tag` objects; the implementation of the `tags` object.
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.
Variable	`_moduleLog`	Undocumented

def flatten(request, root, write): (source)

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`, `types.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.

def flattenString(request, root): (source)

Collate a string representation of root into a single string.

This is basically gluing flatten to an io.BytesIO 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.

def renderElement(request, element, doctype=b'<!DOCTYPE html>', _failElement=None): (source)

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>'`.
_failElement	Undocumented
Returns
NOT_DONE_YET
Present Since
12.1

@exposer
def renderer(): (source)

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>

NOT_DONE_YET: int = (source)

Undocumented

Value

TEMPLATE_NAMESPACE: str = (source)

The XML namespace used to identify attributes and elements used by the templating system, which should be removed from the final output document.

Value

'http://twistedmatrix.com/ns/twisted.web.template/0.1'

VALID_HTML_TAG_NAMES: set[str] = (source)

A list of recognized HTML tag names, used by the tag object.

Value

set(['a',
     'abbr',
     'acronym',
     'address',
     'applet',
     'area',
     'article',
...

tags = (source)

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.

def _flatsaxParse(fl): (source)

Perform a SAX parse of an XML document with the _ToStan class.

Parameters
fl:A file object or filename.	The XML document to be parsed.
Returns
a `list` of Stan objects.

_moduleLog = (source)

Undocumented