You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
2.4 KiB
68 lines
2.4 KiB
5 months ago
|
# XInclude processing
|
||
|
|
|
||
|
|
from lxml.includes cimport xinclude
|
||
|
|
|
||
|
|
|
||
|
|
cdef class XIncludeError(LxmlError):
|
||
|
|
"""Error during XInclude processing.
|
||
|
|
"""
|
||
|
|
|
||
|
|
|
||
|
|
cdef class XInclude:
|
||
|
|
"""XInclude(self)
|
||
|
|
XInclude processor.
|
||
|
|
|
||
|
|
Create an instance and call it on an Element to run XInclude
|
||
|
|
processing.
|
||
|
|
"""
|
||
|
|
cdef _ErrorLog _error_log
|
||
|
|
def __init__(self):
|
||
|
|
self._error_log = _ErrorLog()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def error_log(self):
|
||
|
|
assert self._error_log is not None, "XInclude instance not initialised"
|
||
|
|
return self._error_log.copy()
|
||
|
|
|
||
|
|
def __call__(self, _Element node not None):
|
||
|
|
"__call__(self, node)"
|
||
|
|
# We cannot pass the XML_PARSE_NOXINCNODE option as this would free
|
||
|
|
# the XInclude nodes - there may still be Python references to them!
|
||
|
|
# Therefore, we allow XInclude nodes to be converted to
|
||
|
|
# XML_XINCLUDE_START nodes. XML_XINCLUDE_END nodes are added as
|
||
|
|
# siblings. Tree traversal will simply ignore them as they are not
|
||
|
|
# typed as elements. The included fragment is added between the two,
|
||
|
|
# i.e. as a sibling, which does not conflict with traversal.
|
||
|
|
cdef int result
|
||
|
|
_assertValidNode(node)
|
||
|
|
assert self._error_log is not None, "XInclude processor not initialised"
|
||
|
|
if node._doc._parser is not None:
|
||
|
|
parse_options = node._doc._parser._parse_options
|
||
|
|
context = node._doc._parser._getParserContext()
|
||
|
|
c_context = <void*>context
|
||
|
|
else:
|
||
|
|
parse_options = 0
|
||
|
|
context = None
|
||
|
|
c_context = NULL
|
||
|
|
|
||
|
|
self._error_log.connect()
|
||
|
|
if tree.LIBXML_VERSION < 20704 or not c_context:
|
||
|
|
__GLOBAL_PARSER_CONTEXT.pushImpliedContext(context)
|
||
|
|
with nogil:
|
||
|
|
orig_loader = _register_document_loader()
|
||
|
|
if c_context:
|
||
|
|
result = xinclude.xmlXIncludeProcessTreeFlagsData(
|
||
|
|
node._c_node, parse_options, c_context)
|
||
|
|
else:
|
||
|
|
result = xinclude.xmlXIncludeProcessTree(node._c_node)
|
||
|
|
_reset_document_loader(orig_loader)
|
||
|
|
if tree.LIBXML_VERSION < 20704 or not c_context:
|
||
|
|
__GLOBAL_PARSER_CONTEXT.popImpliedContext()
|
||
|
|
self._error_log.disconnect()
|
||
|
|
|
||
|
|
if result == -1:
|
||
|
|
raise XIncludeError(
|
||
|
|
self._error_log._buildExceptionMessage(
|
||
|
|
"XInclude processing failed"),
|
||
|
|
self._error_log)
|