def _add_define(self, variable, expression):
name = utils.py_attr('with')
define = "%s=%s; " % (variable, expression)
if name in self.attrib:
self.attrib[name] += define
else:
self.attrib[name] = define
def update(self):
# Step 1: Convert py:choose, py:when, py:otherwise into
# tal:define, tal:condition
stream = self.stream
choose_expression = self._pull_attribute(utils.py_attr('choose'))
if choose_expression is not None:
choose_variable = stream.new_var()
if choose_expression:
self._add_define(choose_variable, choose_expression)
# select all elements that have the "py:when" controller,
# unless a "py:choose" expression sits in-between
elements = get_elements_with_attribute_unless_in_between(
self, config.PY_NS, "when", "choose")
variables = []
for element in elements:
expression = element._pull_attribute(utils.py_attr('when'))
variable = stream.new_var()
variables.append(variable)
# add definition to ancestor
self._add_define(variable, expression)
# add condition to element
if choose_expression:
expression = "%s == %s" % (
choose_variable, variable)
else:
expression = "%s" % variable
element.attrib[utils.py_attr('if')] = expression
# process any "py:otherwise"-controllers
elements = get_elements_with_attribute_unless_in_between(
self, config.PY_NS, "otherwise", "choose")
for element in elements:
if choose_expression:
expression = "%s not in %s" % (
choose_variable, repr(tuple(variables)))
else:
expression = "not(%s)" % " or ".join(variables)
element.attrib[utils.py_attr('if')] = expression
def _add_define(self, variable, expression):
name = utils.py_attr('with')
define = "%s=%s; " % (variable, expression)
if name in self.attrib:
self.attrib[name] += define
else:
self.attrib[name] = define
def update(self):
# Step 1: Convert py:choose, py:when, py:otherwise into
# tal:define, tal:condition
stream = self.stream
choose_expression = self._pull_attribute(utils.py_attr('choose'))
if choose_expression is not None:
choose_variable = stream.new_var()
if choose_expression:
self._add_define(choose_variable, choose_expression)
# select all elements that have the "py:when" controller,
# unless a "py:choose" expression sits in-between
elements = get_elements_with_attribute_unless_in_between(
self, config.PY_NS, "when", "choose")
variables = []
for element in elements:
expression = element._pull_attribute(utils.py_attr('when'))
variable = stream.new_var()
variables.append(variable)
# add definition to ancestor
self._add_define(variable, expression)
# add condition to element
if choose_expression:
expression = "%s == %s" % (choose_variable, variable)
else:
expression = "%s" % variable
element.attrib[utils.py_attr('if')] = expression
# process any "py:otherwise"-controllers
elements = get_elements_with_attribute_unless_in_between(
self, config.PY_NS, "otherwise", "choose")
for element in elements:
if choose_expression:
expression = "%s not in %s" % (choose_variable,
repr(tuple(variables)))
else:
expression = "not(%s)" % " or ".join(variables)
element.attrib[utils.py_attr('if')] = expression
class XHTMLElement(GenshiElement):
"""XHTML namespace element."""
py_if = utils.attribute(utils.py_attr('if'), lambda p: p.expression)
py_for = utils.attribute(utils.py_attr('for'), lambda p: p.definition)
py_with = utils.attribute(utils.py_attr('with'),
lambda p: expressions.translator.definitions)
py_choose = utils.attribute(utils.py_attr('choose'),
lambda p: p.expression)
py_when = utils.attribute(utils.py_attr('when'), lambda p: p.expression)
py_otherwise = utils.attribute(utils.py_attr('otherwise'),
lambda p: p.expression)
py_match = utils.attribute(utils.py_attr('match'))
py_once = utils.attribute(utils.py_attr('once'), default='false')
py_def = utils.attribute(utils.py_attr('def'), lambda p: p.method)
py_attrs = utils.attribute(utils.py_attr('attrs'), lambda p: p.expression)
py_content = utils.attribute(utils.py_attr('content'), lambda p: p.output)
py_replace = utils.attribute(utils.py_attr('replace'), lambda p: p.output)
py_strip = utils.attribute(utils.py_attr('strip'), lambda p: p.expression)
meta_translator = etree.Annotation(utils.meta_attr('translator'))
meta_interpolation = utils.attribute(utils.meta_attr('interpolation'),
default='true',
recursive=True)
meta_interpolation_escaping = utils.attribute(
utils.meta_attr('interpolation-escaping'),
default='true',
recursive=True)
i18n_translate = utils.attribute(utils.i18n_attr('translate'))
i18n_attributes = utils.attribute(utils.i18n_attr('attributes'),
lambda p: p.mapping)
i18n_domain = utils.attribute(utils.i18n_attr('domain'))
i18n_name = utils.attribute(utils.i18n_attr('name'))
