1 #!/usr/bin/python2.5

     2 #

     3 # Copyright 2008 the Melange authors.

     4 #

     5 # Licensed under the Apache License, Version 2.0 (the "License");

     6 # you may not use this file except in compliance with the License.

     7 # You may obtain a copy of the License at

     8 #

     9 #   http://www.apache.org/licenses/LICENSE-2.0

    10 #

    11 # Unless required by applicable law or agreed to in writing, software

    12 # distributed under the License is distributed on an "AS IS" BASIS,

    13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    14 # See the License for the specific language governing permissions and

    15 # limitations under the License.

    16 

    17 """Helpers for manipulating templates.

    18 """

    19 

    20 __authors__ = [

    21   '"Todd Larsen" <tlarsen@google.com>',

    22   '"Pawel Solyga" <pawel.solyga@gmail.com>'

    23   ]

    24 

    25 

    26 def makeSiblingTemplatesList(templates, new_template_file,

    27                              default_template=None):

    28   """Converts template paths into a list of "sibling" templates.

    29   

    30   Args:

    31     templates: search list of templates (or just a single template not in a

    32       list) from which template paths will be extracted (discarding the final

    33       template file name of each template)

    34     new_template_file: new "sibling" template file to append to each extracted

    35       template path

    36     default_template: a default template (or a list of them) to append to the

    37       end of the generated "sibling" template paths; default is None

    38  

    39   Returns:

    40     A list of potential "sibling" templates named by new_template_file located

    41     in the paths of the templates in the supplied list.  For example, from:

    42       ['foo/bar/the_old_template.html', 'foo/the_old_template.html']

    43     to:

    44       ['foo/bar/some_new_template.html', 'foo/some_new_template.html']

    45   """

    46   if not isinstance(templates, (list, tuple)):

    47     templates = [templates]

    48 

    49   if default_template is None:

    50     default_template = []

    51 

    52   if not isinstance(default_template, (list, tuple)):

    53     default_template = [default_template]

    54 

    55   sibling_templates = [

    56     '%s/%s' % (t.rsplit('/', 1)[0], new_template_file) for t in templates]

    57 

    58   return sibling_templates + default_template

    59 

    60 

    61 def unescape(html): 

    62   """Returns the given HTML with ampersands, quotes and carets decoded.

    63   """ 

    64   if not isinstance(html, basestring): 

    65     html = str(html) 

    66   

    67   html.replace('&#39;',"'").replace('&lt;', '<')

    68   html.replace('>', '>').replace('"', '"').replace('&', '&')

    69   return html