4Suite API Documentation

Module Ft.Xml.ThirdParty.Xvif.sax2dom_chunker

sax2dom_chunker.py version 1.1
A SAX handler that takes a set of element paths and
creates a series of DOM chunks matching the element paths
for individual processing.  Designed for Python 2.2. or greater.

Copyright 2004 Fourthought Inc, USA.
This work is licensed under Creative Commons Attribution 1.0
For details: http://creativecommons.org/licenses/by/1.0/


class sax2dom_chunker(xml.sax.handler.ContentHandler)
Note: ignores nodes prior to the document element, such as PIs and text nodes This filter is only designed to work if you set features sax.handler.feature_namespaces and sax.handler.feature_namespace_prefixes to 1 on the parser you use. It will not work on drivers that do not support these features. The default drv_expat works fine in this case, but of course has but very limited DTD processing. It also collapses CDATA sections into plain text
trim_to_paths - a list of lists of tuples.  Each tuple is of
    the form (namespace, local-name), providing one segment
    in a path of contained elements
      [ (None, u'monty'), (None, u'python') ],
      [ (None, u'monty'), (None, u'spam'), ('urn:dummy', u'eggs') ]
    If None (the default, a DOM node will be created representing
    the entire tree.

chunk_consumer - a callable object taking a DOM node.  It will be
    invoked as each DOM chunk is prepared.

domimpl - DOM implemention to build, e.g. mindom (the default)
    or cDomlette or pxdom (if you have the right third-party
    packages installed).

owner_doc - for advanced uses, if you want to use an existing
    DOM document object as the owner of all created nodes.


__init__(self, trim_to_paths=None, chunk_consumer=None, domimpl=<xml.dom.minidom.DOMImplementation instance at 0x40b0dc6c>, owner_doc=None)
Overrides: __init__ from class ContentHandler
characters(self, chars)
Overrides: characters from class ContentHandler
comment(self, text)
#Overridden LexicalHandler methods
endElementNS(self, name, qname)
Overrides: endElementNS from class ContentHandler
Only useful if the user does not register trim paths If so, then after SAX processing the user can call this method to retrieve resulting DOm representing the entire document
processingInstruction(self, target, data)
Overrides: processingInstruction from class ContentHandler
startElementNS(self, name, qname, attribs)
#Overridden DocumentHandler methods
Overrides: startElementNS from class ContentHandler

Methods inherited from class xml.sax.handler.ContentHandler

endDocument, endElement, endPrefixMapping, ignorableWhitespace, setDocumentLocator, skippedEntity, startDocument, startElement, startPrefixMapping


DUMMY_DOCELEM = u'dummy'
TOP = -1
XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'
XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'