Class InternalSubsetExtractor

Lib/xml/dom/expatbuilder.py:852–893

XML processor which can rip out the internal document type subset.

    pass

class InternalSubsetExtractor(ExpatBuilder):
    """XML processor which can rip out the internal document type subset."""

    subset = None

    def getSubset(self):
        """Return the internal subset as a string."""
        return self.subset

    def parseFile(self, file):
        try:
            ExpatBuilder.parseFile(self, file)
        except ParseEscape:
            pass

    def parseString(self, string):
        try:
            ExpatBuilder.parseString(self, string)
        except ParseEscape:
            pass

    def install(self, parser):
        parser.StartDoctypeDeclHandler = self.start_doctype_decl_handler
        parser.StartElementHandler = self.start_element_handler

    def start_doctype_decl_handler(self, name, publicId, systemId,
                                   has_internal_subset):
        if has_internal_subset:
            parser = self.getParser()
            self.subset = []
            parser.DefaultHandler = self.subset.append
            parser.EndDoctypeDeclHandler = self.end_doctype_decl_handler
        else:
            raise ParseEscape()

    def end_doctype_decl_handler(self):
        s = ''.join(self.subset).replace('\r\n', '\n').replace('\r', '\n')
        self.subset = s
        raise ParseEscape()

    def start_element_handler(self, name, attrs):
        raise ParseEscape()


def parse(file, namespaces=True):