Small change to unescape function in template_helpers (move replace('&', '&') at the end).
#!/usr/bin/python2.5
#
# Copyright 2008 the Melange authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Helpers for manipulating templates.
"""
__authors__ = [
'"Todd Larsen" <tlarsen@google.com>',
'"Pawel Solyga" <pawel.solyga@gmail.com>'
]
def makeSiblingTemplatesList(templates, new_template_file,
default_template=None):
"""Converts template paths into a list of "sibling" templates.
Args:
templates: search list of templates (or just a single template not in a
list) from which template paths will be extracted (discarding the final
template file name of each template)
new_template_file: new "sibling" template file to append to each extracted
template path
default_template: a default template (or a list of them) to append to the
end of the generated "sibling" template paths; default is None
Returns:
A list of potential "sibling" templates named by new_template_file located
in the paths of the templates in the supplied list. For example, from:
['foo/bar/the_old_template.html', 'foo/the_old_template.html']
to:
['foo/bar/some_new_template.html', 'foo/some_new_template.html']
"""
if not isinstance(templates, (list, tuple)):
templates = [templates]
if default_template is None:
default_template = []
if not isinstance(default_template, (list, tuple)):
default_template = [default_template]
sibling_templates = [
'%s/%s' % (t.rsplit('/', 1)[0], new_template_file) for t in templates]
return sibling_templates + default_template
def unescape(html):
"""Returns the given HTML with ampersands, quotes and carets decoded.
"""
if not isinstance(html, basestring):
html = str(html)
html.replace(''',"'").replace('<', '<')
html.replace('>', '>').replace('"', '"').replace('&', '&')
return html
def getSingleIndexedParamValue(request, param_name, values=()):
"""Returns a value indexed by a query parameter in the HTTP request.
Args:
request: the Django HTTP request object
param_name: name of the query parameter in the HTTP request
values: list (or tuple) of ordered values; one of which is
retrieved by the index value of the param_name argument in
the HTTP request
Returns:
None if the query parameter was not present, was not an integer, or
was an integer that is not a valid [0..len(values)-1] index into
the values list.
Otherwise, returns values[int(param_name value)]
"""
value_idx = request.GET.get(param_name)
if isinstance(value_idx, (tuple, list)):
# keep only the first argument if multiple are present
value_idx = value_idx[0]
try:
# GET parameter 'param_name' should be an integer value index
value_idx = int(value_idx)
except:
# ignore bogus or missing parameter values, so return None (no message)
return None
if value_idx < 0:
# value index out of range, so return None (no value)
return None
if value_idx >= len(values):
# value index out of range, so return None (no value)
return None
# return value associated with valid value index
return values[value_idx]
def getSingleIndexedParamValueIfMissing(value, request, param_name,
values=()):
"""Returns missing value indexed by a query parameter in the HTTP request.
Args:
value: an existing value, or a "False" value such as None
request, param_name, values: see getSingleIndexParamValue()
Returns:
value, if value is "non-False"
Otherwise, returns getSingleIndexedParamValue() result.
"""
if value:
# value already present, so return it
return value
return getSingleIndexedParamValue(request, param_name, values=values)
# TODO(tlarsen): write getMultipleIndexParamValues() that returns a
# list of values if present, omitting those values that are
# out of range