def getURIFromElementName(elem, nsMap):
if elem.prefix is None:
prefix, localName = SplitQName(elem.nodeName)
else:
prefix, localName = elem.prefix, elem.localName
if elem.namespaceURI: #namespace aware node
u = elem.namespaceURI
#comment out this assertion because ZML will add namespaces with the {URIRef} tokens
#assert u == nsMap.get(prefix, u), ('namespace URI for ' + prefix +
# ' mismatch xmlns declaration ' + u + ' with rx:prefix ' + nsMap[prefix])
else:
if nsMap.has_key(prefix):
u = nsMap[prefix]
else:
u = None
for name, value in elem.attributes.items():
attrPrefix, attrLocal = SplitQName(name)
if attrPrefix == 'xmlns' and attrLocal == prefix:
u = value
#this will never go out of scope but the zml auto-generated prefixes always increment
nsMap[prefix] = u
break
if not u:
raise RxMLError('prefix ' + repr(prefix) + ' not found')
if not localName.lstrip('_'): #if empty, must be all '_'s
localName = localName[:-1] #strip last '_'
return u + localName
def __getitem__(self, key):
if isinstance(key, int):
result = list(self)[key]
else:
force_type = None
if isinstance(key, tuple):
if len(key) == 3:
force_type, key = key[0], key[1:]
elif isinstance(key, basestring):
key = (None, key)
else:
raise TypeError('Inappropriate key (%s)' % (key))
for attr, obj in self.xml_properties.items():
if self.is_attribute(attr):
qname, ns = self.xml_attributes.get(attr)
if (force_type in (None, Node.ATTRIBUTE_NODE)
and key == (ns, SplitQName(qname)[1])):
#The key references an XML attribute
#Bypass __setattr__
result = obj
break
elif is_element(obj):
if (force_type in (None, Node.ELEMENT_NODE)
and key == (obj.namespaceURI, obj.localName)):
result = obj
break
else:
raise KeyError(
'namespace/local name combination not found (%s)' %
(str(key)))
return result
def xml_create_element(self,
qname,
ns=None,
content=None,
attributes=None):
"Create a new, empty element (no attrs)"
instance = create_element(self.xml_naming_rule, qname, ns)
if content:
if not isinstance(content, list):
content = [content]
instance.xml_children = content
if attributes:
instance.xml_attributes = {}
for aname in attributes:
if isinstance(aname, tuple):
aqname, ans = aname
else:
aqname, ans = aname, None
avalue = attributes[aname]
apyname = self.xml_naming_rule.xml_to_python(
SplitQName(aqname)[1], ans, check_clashes=dir(instance))
#Bypass __setattr__
instance.__dict__[apyname] = avalue
instance.xml_attributes[apyname] = (aqname, ans)
return instance
def xml_set_attribute(self, aname, avalue):
"Set (or create) an attribute on ana element"
if isinstance(aname, tuple):
aqname, ans = aname
else:
aqname, ans = aname, None
prefix, local = SplitQName(aqname)
if prefix == u'xml':
ans = XML_NS
elif ans and not prefix and ans in self.rootNode.xmlns_prefixes.values(
):
#If the user specified a namespace URI and not a prefix, they would
#Usually get an ugly generated prefix. Check the document for a nicer
#Alternative
#Note: this could cause spurious namespace declarations if the document is not sane
prefix = [
p for p, u in self.rootNode.xmlns_prefixes.items() if u == ans
][0]
aqname = prefix + u':' + local
apyname = self.xml_naming_rule.xml_to_python(local,
ans,
check_clashes=dir(self))
#Bypass __setattr__
self.__dict__[apyname] = avalue
if not hasattr(self, 'xml_attributes'):
self.xml_attributes = {}
self.xml_attributes[apyname] = (aqname, ans)
return apyname
def getURIFromElement(context, nodeset=None):
string = None
if nodeset is None:
node = context.node
elif type(nodeset) == type([]):
if nodeset:
node = nodeset[0]
if node.nodeType != Node.ELEMENT_NODE:
string = node
else:
return u''
else:
string = nodeset
if string is not None:
qname = StringValue(string)
(prefix, local) = SplitQName(qname)
if prefix:
try:
namespace = context.processorNss[prefix]
except KeyError:
raise XPath.RuntimeException(
XPath.RuntimeException.UNDEFINED_PREFIX, prefix)
return namespace + getURIFragmentFromLocal(local)
else:
return getURIFromElementName(node)
def _onMetaData(kw, context, name, func, opname, value=None, authorize=True):
from rx import raccoon
(prefix, local) = SplitQName(name)
if prefix:
try:
namespace = context.processorNss[prefix]
except KeyError:
raise RuntimeException(RuntimeException.UNDEFINED_PREFIX, prefix)
else:
namespace = None
local = str(local) #function argument keyword dict can't be unicode
if authorize and not kw['__server__'].authorizeMetadata(
opname, namespace, local, value, kw):
if value is None:
value = ''
raise raccoon.NotAuthorized('%s-metadata with %s:%s %s' %
(opname, namespace, name, value))
dict = None
kwdicts = kw['__server__'].kw2varsMap
if not namespace:
dict = kw
elif kwdicts.get(namespace):
dictname, attrib, filter = kwdicts[namespace]
dict = kw.get(dictname)
if dict and attrib:
dict = getattr(dict, attrib, None)
else:
raise raccoon.UnusableNamespaceError('%s uses unusable namespace: %s' %
(local, namespace))
#if dict is None:
# log.debug('calling %s-metadata on an unavailable namespace %s' % (opname, namespace) )
return func(local, dict)
def create_document(qname=None,
ns=None,
content=None,
attributes=None,
pubid=None,
sysid=None):
"""
Create a document, with optional convenience arguments to create
top-level information items
qname - optional QName of the document element (which will be created)
if QName is not given, no other arguments may be given
ns - optional namespace of the document element
content - optional Unicode that makes up text content to be set
as the child of the document element
pubid - optional public ID of the doctype (to be set on the document)
sysid - optional system ID of the doctype (to be set on the document)
"""
if not qname:
doc = bindery.root_base()
return doc
doc = bindery.root_base(doctype_name=qname, pubid=pubid, sysid=sysid)
prefix, local = SplitQName(qname)
doc_elem = doc.xml_element(qname, ns, attributes=attributes)
doc.xml_append(doc_elem)
if content:
doc_elem.xml_append(content)
return doc
def __delitem__(self, key):
if isinstance(key, int):
#child = self.__getitem__(key)
#index = self.xml_parent.xml_children.index(child)
self.xml_parent.xml_remove_child_at(key)
else:
force_type = None
if isinstance(key, tuple):
if len(key) == 3:
force_type, key = key[0], key[1:]
elif isinstance(key, basestring):
key = (None, key)
else:
raise TypeError('Inappropriate key (%s)' % (key))
for attr, obj in self.xml_properties.items():
if self.is_attribute(attr):
qname, ns = self.xml_attributes.get(attr)
if (force_type in (None, Node.ATTRIBUTE_NODE)
and key == (ns, SplitQName(qname)[1])):
#The key references an XML attribute
del self.xml_attributes[attr]
#Bypass __delattr__
del self.__dict__[attr]
break
elif is_element(obj):
if (force_type in (None, Node.ELEMENT_NODE)
and key == (obj.namespaceURI, obj.localName)):
self.xml_remove_child(obj)
break
else:
raise KeyError(
'namespace/local name combination not found (%s)' %
(str(key)))
return
def matchName(node, prefixes, local):
#if node.namespaceURI: #namespace aware node
# return node.namespaceURI in prefixes.values() and node.localName == local
if node.prefix is None:
prefix, localName = SplitQName(node.nodeName)
else:
prefix, localName = node.prefix, node.localName
return prefix in prefixes and localName == local
def createElementNS(self, namespaceURI, qualifiedName):
prefix, localName = SplitQName(qualifiedName)
element = Element(qualifiedName, namespaceURI, prefix, localName)
element.ownerDocument = element.rootNode = self
element.baseURI = self.baseURI
#element.docIndex = self.nextIndex
self.nextIndex += 3 # room for namespace and attribute nodes
return element
def xml_to_python(self, qname, ns=None, check_clashes=None):
prefix, local = SplitQName(qname)
python_id = PY_REPLACE_PAT.sub('_', local)
if python_id in RESERVED_NAMES:
python_id = python_id + '_'
if check_clashes:
while python_id in check_clashes:
python_id += '_'
return python_id
def __init__(self, qname, ns, value, parent):
self.namespaceURI = ns
self.prefix, self.localName = SplitQName(qname)
self.value = value
self.nodeValue = value
self.name = qname
self.nodeName = qname
self.rootNode = parent._rootNode()
docIndex = id(value)
return
def _attributes(self):
try:
attrs = self.xml_attributes
except AttributeError:
return {}
keys = [(ns, SplitQName(qname))
for attr, (qname, ns) in self.xml_attributes.items()]
values = [
xpath_attr_wrapper(qname, ns, unicode(getattr(self, attr)), self)
for attr, (qname, ns) in self.xml_attributes.items()
]
return dict(zip(keys, values))
def getAttributeNS(self, ns, local):
try:
attrs = self.xml_attributes
except AttributeError:
return {}
keys = [(ns, SplitQName(qname)[1])
for attr, (qname, ns) in self.xml_attributes.items()]
values = [
unicode(getattr(self, attr))
for attr, (qname, ns) in self.xml_attributes.items()
]
attr_dict = dict(zip(keys, values))
return attr_dict.get((ns, local), "")
def setAttributeNS(self, namespaceURI, qualifiedName, value):
prefix, localName = SplitQName(qualifiedName)
key = self._get_attrkey(namespaceURI, localName)
attr = self.attributes.get(key)
if attr:
# Reuse existing attribute node
attr.prefix = prefix
attr.nodeValue = attr.value = value
return
attr = Attr(qualifiedName, namespaceURI, prefix, localName, value)
self._set_attribute(key, attr)
return
def startElement(self, namespaceUri, tagName, namespaces, attributes):
"""
Handles a startElement event.
Writes part of an element's start-tag or empty-element tag to
the stream, and closes the start tag of the previous element,
if one remained open. Writes the xmlns attributes for the given
dictionary of namespaces, and invokes attribute() as neeeded to
write the given dictionary of attributes.
The namespaceUri argument is ignored in this class.
"""
if self._inElement:
# Close current start tag
self.writeAscii('>')
else:
self._inElement = True
self.writeAscii('<')
self.writeEncode(tagName, 'start-tag name')
# Write the namespaces, in alphabetical order of prefixes, with
# the default coming first (easy since None comes before any actual
# Unicode value)
prefixes = namespaces.items()
prefixes.sort()
parent_prefixes = self._ns_stack[-1].items()
for prefix, uri in prefixes:
#No redundant NSDecls
if (prefix, uri) not in parent_prefixes:
if prefix:
self.attribute(namespaceUri, tagName, u"xmlns:"+prefix, uri)
else:
self.attribute(namespaceUri, tagName, u"xmlns", uri)
self._ns_stack.append(self._ns_stack[-1].copy())
self._ns_stack[-1].update(namespaces)
# Now the attributes
attrs = attributes.items()
attrs = [ (self._ns_stack[-1].get(SplitQName(name)[0], None), name, value)
for name, value in attributes.items() ]
attrs.sort()
for ns, name, value in attrs:
self.attribute(namespaceUri, tagName, name, value)
return
def create_element(namer, qname, ns=None, ename=None):
prefix, local = SplitQName(qname)
if not ename: ename = namer.xml_to_python(qname, ns)
ns_class = g_namespaces.setdefault(ns, namespace(ns, prefix))
if ns_class.binding_classes.has_key(local):
class_ = ns_class.binding_classes[local]
else:
exec "class %s(element_base): pass" % ename in globals(), locals()
class_ = locals()[ename]
ns_class.binding_classes[local] = class_
instance = class_()
instance.nodeName = qname
if ns:
#intern(ns) #Can't intern Unicode
instance.xmlnsUri = ns
instance.xmlnsPrefix = prefix
instance.xmlnsLocalName = local
instance.xml_namer = namer
return instance
def create_element(xmlnaming_rule, xmlqname, xmlns=None, xmlename=None):
xmlprefix, xmllocal = SplitQName(xmlqname)
if not xmlename: xmlename = xmlnaming_rule.xml_to_python(xmllocal, xmlns)
xmlns_class = g_namespaces.setdefault(xmlns, namespace(xmlns, xmlprefix))
if xmlns_class.binding_classes.has_key(xmlename):
xmlclass = xmlns_class.binding_classes[xmlename]
else:
exec "class %s(element_base): pass" % xmlename in globals(), locals()
xmlclass = locals()[xmlename]
xmlns_class.binding_classes[xmlename] = xmlclass
if not hasattr(xmlclass, "xml_naming_rule"):
xmlclass.xml_naming_rule = xmlnaming_rule
xmlinstance = xmlclass()
xmlinstance.nodeName = xmlqname
if xmlns:
xmlinstance.xmlnsUri = xmlns
xmlinstance.xmlnsPrefix = xmlprefix
xmlinstance.xmlnsLocalName = xmllocal
return xmlinstance
except SyntaxError, e:
raise SyntaxError("Select Expression %s: %s" %
(select, str(e)))
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if not nodeset:
raise XUpdateException(
XUpdateException.INVALID_SELECT,
node.getAttributeNS(EMPTY_NAMESPACE, u'select'))
Domlette.XmlStrStrip(node.firstChild.data)
new_name = node.firstChild.data.strip()
(prefix, local) = SplitQName(new_name)
if prefix:
namespace = context.processorNss[prefix]
else:
namespace = EMPTY_NAMESPACE
for refnode in nodeset:
if refnode.nodeType == Node.ATTRIBUTE_NODE:
parent = refnode.ownerElement
parent.removeAttributeNode(refnode)
parent.setAttributeNS(namespace, new_name,
refnode.value)
else:
assert refnode.nodeType == Node.ELEMENT_NODE
refnode.nodeName = refnode.tagName = new_name
refnode.namespaceURI = namespace
for p in prefixes:
match = g_prefixBindingPattern.match(p)
if match is None:
raise TypeError('Error in -P/--prefix arguments')
nsmappings[match.group(1)] = match.group(2)
defs = options.get('define', [])
if not isinstance(defs, list):
defs = [defs]
top_level_params = {}
for d in defs:
match = g_paramBindingPattern.match(d)
if match is None:
raise TypeError('Error in -D/--define arguments')
name = match.group(1)
prefix, local = SplitQName(name)
if prefix in nsmappings:
name = (nsmappings[prefix], local)
top_level_params[name] = match.group(2)
# misc runtime flags
ignore_pis = options.has_key('ignore')
checktime = options.has_key('time')
# -- Do the transformation -----------------------------------------
try:
if source_isrc is None:
raise TypeError('No source document to transform!')
def visit(self, context, node, preserveSpace):
#FIXME: We should improve this function from this ugly-ass
#switch thingie to dynamic dispatch
if node.nodeType == Node.ELEMENT_NODE:
xml_space = node.getAttributeNS(XML_NAMESPACE, 'space')
if xml_space == 'preserve':
preserveSpace = 1
elif xml_space == 'default':
preserveSpace = 0
# else, no change
if node.namespaceURI != XUPDATE_NS:
self.writers[-1].startElement(node.nodeName, node.namespaceURI)
# Process the attributes
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
for attr in node.attributes.values():
value = self.parseAVT(attr.value)
value = value.evaluate(context)
self.writers[-1].attribute(attr.nodeName, value,
attr.namespaceURI)
context.processorNss = oldNss
# Now the children
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
self.writers[-1].endElement(node.nodeName)
return context
# XUpdate elements
try:
restoreGraphContext = False
graphURI = node.getAttributeNS(EMPTY_NAMESPACE, u'to-graph')
if graphURI:
graphURI = self.parseAVT(graphURI)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
graphURI = graphURI.evaluate(context)
context.processorNss = oldNss
context.node.ownerDocument.pushContext(graphURI)
restoreGraphContext = True
if node.localName == 'modifications':
for n in node.childNodes:
self.visit(context, n, preserveSpace)
elif node.localName == 'remove':
select = node.getAttributeNS(EMPTY_NAMESPACE, u'select')
#import sys
#print >>sys.stderr, 'removing', select
if not select:
raise XUpdateException(XUpdateException.NO_SELECT)
_select = self.parseExpression(select)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if nodeset:
#change from 4Suite -- why did it only delete the first node in the nodeset?
#that's not in the spec or very intuitive
#refnode = nodeset[0]
for refnode in nodeset:
if refnode.nodeType == Node.ATTRIBUTE_NODE:
parent = refnode.ownerElement
parent.removeAttributeNode(refnode)
else:
parent = refnode.parentNode
if parent is None:
parent = refnode.ownerDocument
parent.removeChild(refnode)
context.processorNss = oldNss
elif node.localName in ['insert-after', 'insert-before']:
select = node.getAttributeNS(EMPTY_NAMESPACE, u'select')
if not select:
raise XUpdateException(XUpdateException.NO_SELECT)
_select = self.parseExpression(select)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if not nodeset:
raise XUpdateException(XUpdateException.INVALID_SELECT)
refnode = nodeset[0]
self.pushDomResult(refnode.ownerDocument)
try:
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
finally:
result = self.popResult()
if node.localName == 'insert-before':
refnode.parentNode.insertBefore(result, refnode)
elif node.localName == 'insert-after':
# if arg 2 is None, insertBefore behaves like appendChild
refnode.parentNode.insertBefore(
result, refnode.nextSibling)
context.processorNss = oldNss
elif node.localName == 'element':
name = node.getAttributeNS(EMPTY_NAMESPACE, 'name')
if not name:
raise XUpdateException(XUpdateException.NO_NAME)
_name = self.parseAVT(name)
namespace = node.getAttributeNS(EMPTY_NAMESPACE,
'namespace')
_namespace = self.parseAVT(namespace)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
name = _name.evaluate(context)
namespace = _namespace and _namespace.evaluate(context)
(prefix, local) = SplitQName(name)
if not namespace:
if prefix:
namespace = context.processorNss[prefix]
else:
namespace = EMPTY_NAMESPACE
self.writers[-1].startElement(name, namespace)
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
self.writers[-1].endElement(name)
context.processorNss = oldNss
elif node.localName == 'attribute':
name = node.getAttributeNS(EMPTY_NAMESPACE, 'name')
if not name:
raise XUpdateException(XUpdateException.NO_NAME)
_name = self.parseAVT(name)
namespace = node.getAttributeNS(EMPTY_NAMESPACE,
'namespace')
_namespace = self.parseAVT(namespace)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
name = _name.evaluate(context)
namespace = _namespace and _namespace.evaluate(context)
(prefix, local) = SplitQName(name)
if not namespace:
if prefix:
namespace = context.processorNss[prefix]
else:
namespace = EMPTY_NAMESPACE
self.pushStringResult()
try:
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
finally:
result = self.popResult()
self.writers[-1].attribute(name, result, namespace)
context.processorNss = oldNss
elif node.localName == 'append':
select = node.getAttributeNS(EMPTY_NAMESPACE, u'select')
if not select:
raise XUpdateException(XUpdateException.NO_SELECT)
_select = self.parseExpression(select)
child = node.getAttributeNS(EMPTY_NAMESPACE,
u'child') or u'last()'
_child = self.parseExpression(child)
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if not nodeset:
raise XUpdateException(XUpdateException.INVALID_SELECT,
select)
refnode = nodeset[0]
self.pushDomResult(refnode.ownerDocument)
try:
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
finally:
result = self.popResult()
size = len(refnode.childNodes)
con = Context.Context(refnode,
1,
size,
processorNss={'xupdate': XUPDATE_NS})
# Python lists is 0-indexed counting, node-sets 1-indexed
position = int(
Conversions.NumberValue(_child.evaluate(con)))
if position >= size:
refnode.appendChild(result)
else:
refnode.insertBefore(result,
refnode.childNodes[position])
context.processorNss = oldNss
elif node.localName == 'replace':
select = node.getAttributeNS(EMPTY_NAMESPACE, u'select')
if not select:
raise XUpdateException(XUpdateException.NO_SELECT)
try:
_select = self.parseExpression(select)
except SyntaxError, e:
raise SyntaxError("Select Expression %s: %s" %
(select, str(e)))
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if not nodeset:
raise XUpdateException(
XUpdateException.INVALID_SELECT,
node.getAttributeNS(EMPTY_NAMESPACE, u'select'))
refnode = nodeset[0]
self.pushDomResult(refnode.ownerDocument)
try:
for child in node.childNodes:
context = self.visit(context, child, preserveSpace)
finally:
result = self.popResult()
if refnode.nodeType == Node.ATTRIBUTE_NODE:
owner = refnode.parentNode
owner.removeAttributeNode(refnode)
owner.setAttributeNodeNS(result)
else:
refnode.parentNode.replaceChild(result, refnode)
context.processorNss = oldNss
elif node.localName == 'update':
select = node.getAttributeNS(EMPTY_NAMESPACE, u'select')
if not select:
raise XUpdateException(XUpdateException.NO_SELECT)
try:
_select = self.parseExpression(select)
except SyntaxError, e:
raise SyntaxError("Select Expression %s: %s" %
(select, str(e)))
oldNss = context.processorNss
context.processorNss = Domlette.GetAllNs(node)
nodeset = _select.evaluate(context)
if not nodeset:
raise XUpdateException(
XUpdateException.INVALID_SELECT,
node.getAttributeNS(EMPTY_NAMESPACE, u'select'))
refnode = nodeset[0]
if refnode.nodeType == Node.ATTRIBUTE_NODE:
self.pushStringResult()
try:
for child in node.childNodes:
context = self.visit(context, child,
preserveSpace)
finally:
result = self.popResult()
refnode.nodeValue = refnode.value = result
else:
self.pushDomResult(refnode.ownerDocument)
try:
for child in node.childNodes:
context = self.visit(context, child,
preserveSpace)
finally:
result = self.popResult()
while refnode.firstChild:
#print 'remove', id(refnode), id(refnode.firstChild), len(refnode.childNodes)
refnode.removeChild(refnode.firstChild)
refnode.appendChild(result)
context.processorNss = oldNss
def createAttributeNS(self, namespaceURI, qualifiedName):
prefix, localName = SplitQName(qualifiedName)
attr = Attr(qualifiedName, namespaceURI, prefix, localName, u'')
attr.ownerDocument = attr.rootNode = self.ownerDocument
return attr
