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| author | Tom Christie | 2012-09-20 13:06:27 +0100 |
|---|---|---|
| committer | Tom Christie | 2012-09-20 13:06:27 +0100 |
| commit | 4b691c402707775c3048a90531024f3bc5be6f91 (patch) | |
| tree | 3adfc54b0d8b70e4ea78edf7091f7827fa68f47b /rest_framework/utils/__init__.py | |
| parent | a1bcfbfe926621820832e32b0427601e1140b4f7 (diff) | |
| download | django-rest-framework-4b691c402707775c3048a90531024f3bc5be6f91.tar.bz2 | |
Change package name: djangorestframework -> rest_framework
Diffstat (limited to 'rest_framework/utils/__init__.py')
| -rw-r--r-- | rest_framework/utils/__init__.py | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/rest_framework/utils/__init__.py b/rest_framework/utils/__init__.py new file mode 100644 index 00000000..a59fff45 --- /dev/null +++ b/rest_framework/utils/__init__.py @@ -0,0 +1,101 @@ +from django.utils.encoding import smart_unicode +from django.utils.xmlutils import SimplerXMLGenerator +from rest_framework.compat import StringIO + +import re +import xml.etree.ElementTree as ET + + +# From xml2dict +class XML2Dict(object): + + def __init__(self): + pass + + def _parse_node(self, node): + node_tree = {} + # Save attrs and text, hope there will not be a child with same name + if node.text: + node_tree = node.text + for (k, v) in node.attrib.items(): + k, v = self._namespace_split(k, v) + node_tree[k] = v + #Save childrens + for child in node.getchildren(): + tag, tree = self._namespace_split(child.tag, self._parse_node(child)) + if tag not in node_tree: # the first time, so store it in dict + node_tree[tag] = tree + continue + old = node_tree[tag] + if not isinstance(old, list): + node_tree.pop(tag) + node_tree[tag] = [old] # multi times, so change old dict to a list + node_tree[tag].append(tree) # add the new one + + return node_tree + + def _namespace_split(self, tag, value): + """ + Split the tag '{http://cs.sfsu.edu/csc867/myscheduler}patients' + ns = http://cs.sfsu.edu/csc867/myscheduler + name = patients + """ + result = re.compile("\{(.*)\}(.*)").search(tag) + if result: + value.namespace, tag = result.groups() + return (tag, value) + + def parse(self, file): + """parse a xml file to a dict""" + f = open(file, 'r') + return self.fromstring(f.read()) + + def fromstring(self, s): + """parse a string""" + t = ET.fromstring(s) + unused_root_tag, root_tree = self._namespace_split(t.tag, self._parse_node(t)) + return root_tree + + +def xml2dict(input): + return XML2Dict().fromstring(input) + + +# Piston: +class XMLRenderer(): + def _to_xml(self, xml, data): + if isinstance(data, (list, tuple)): + for item in data: + xml.startElement("list-item", {}) + self._to_xml(xml, item) + xml.endElement("list-item") + + elif isinstance(data, dict): + for key, value in data.iteritems(): + xml.startElement(key, {}) + self._to_xml(xml, value) + xml.endElement(key) + + elif data is None: + # Don't output any value + pass + + else: + xml.characters(smart_unicode(data)) + + def dict2xml(self, data): + stream = StringIO.StringIO() + + xml = SimplerXMLGenerator(stream, "utf-8") + xml.startDocument() + xml.startElement("root", {}) + + self._to_xml(xml, data) + + xml.endElement("root") + xml.endDocument() + return stream.getvalue() + + +def dict2xml(input): + return XMLRenderer().dict2xml(input) |
