1 """Template support for Genshi template engine.
2
3 This module implements a sub-class of
4 ``genshi.template.plugin.MarkupTemplateEnginePlugin``, to support our extension
5 to the Buffet templating API that allows to pass additional template engine
6 options as keyword arguments to the ``render()`` method of engines.
7
8 This is necessary, for example, to allow us to pass different doctypes to
9 Genshi when rendering to different XML-based formats, i.e. HTML, XHML, XML, RSS,
10 etc. or to omit the doctype all together.
11
12 """
13
14 from genshi.output import DocType
15 from genshi.template.plugin import MarkupTemplateEnginePlugin
16
17
19 """Custom Genshi template engine plugin supporting Buffet API extensions."""
20
21 - def __init__(self, extra_vars_func=None, options=None):
22 default_doctype = options.pop('genshi.default_doctype', None)
23 MarkupTemplateEnginePlugin.__init__(self, extra_vars_func, options)
24 self.default_doctype = default_doctype
25
26 - def render(self, info, format="html", fragment=False, template=None,
27 **options):
32
34 """Return options dict for rendering the given format."""
35
36
37
38 if format is None:
39 format = self.default_format
40 kwargs = {'method': format}
41 if self.default_encoding:
42 kwargs['encoding'] = self.default_encoding
43 doctype = options.pop('doctype', self.default_doctype)
44 kwargs.update(options)
45 if doctype and not fragment:
46 if isinstance(doctype, dict):
47 doctype = doctype.get(format)
48 if doctype:
49 doctype = DocType.get(doctype)
50 if doctype is None:
51 raise ConfigurationError('Unknown doctype %r' % doctype)
52 kwargs['doctype'] = doctype
53 return kwargs
54