Python ElementTree.ProcessingInstruction方法代码示例

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def processinginstruction():
    """
    Test ProcessingInstruction directly

    >>> ET.tostring(ET.ProcessingInstruction('test', 'instruction'))
    '<?test instruction?>'
    >>> ET.tostring(ET.PI('test', 'instruction'))
    '<?test instruction?>'

    Issue #2746

    >>> ET.tostring(ET.PI('test', '<testing&>'))
    '<?test <testing&>?>'
    >>> ET.tostring(ET.PI('test', u'<testing&>\xe3'), 'latin1')
    "<?xml version='1.0' encoding='latin1'?>\\n<?test <testing&>\\xe3?>"
    """

#
# xinclude tests (samples from appendix C of the xinclude specification) 

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def show_xml(document):
    from xml.etree import ElementTree as XML

    xml_document = XML.Element("results")
    legs_xml = XML.SubElement(xml_document, 'legs')
    for n, leg in enumerate(document['legs'], start=1):
        leg_xml = XML.SubElement(legs_xml, 'leg', n=str(n))
        leg_xml.text = leg

    teams_xml = XML.SubElement(xml_document, 'teams')
    for team in document['teams']:
        team_xml = XML.SubElement(teams_xml, "team")
        name_xml = XML.SubElement(team_xml, "name")
        name_xml.text = team['name']
        position_xml = XML.SubElement(team_xml, "position")
        for n, position in enumerate(team['position'], start=1):
            leg_xml = XML.SubElement(position_xml, "leg", n=str(n))
            leg_xml.text = str(position)

    pi = XML.ProcessingInstruction("xml", 'version="1.0"')
    XML.dump(pi)
    XML.dump(xml_document) 

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def interface():
    r"""
    Test element tree interface.

    >>> element = ET.Element("tag")
    >>> check_element(element)
    >>> tree = ET.ElementTree(element)
    >>> check_element(tree.getroot())

    >>> element = ET.Element("t\xe4g", key="value")
    >>> tree = ET.ElementTree(element)
    >>> repr(element)   # doctest: +ELLIPSIS
    "<Element 't\\xe4g' at 0x...>"
    >>> element = ET.Element("tag", key="value")

    Make sure all standard element methods exist.

    >>> check_method(element.append)
    >>> check_method(element.extend)
    >>> check_method(element.insert)
    >>> check_method(element.remove)
    >>> check_method(element.getchildren)
    >>> check_method(element.find)
    >>> check_method(element.iterfind)
    >>> check_method(element.findall)
    >>> check_method(element.findtext)
    >>> check_method(element.clear)
    >>> check_method(element.get)
    >>> check_method(element.set)
    >>> check_method(element.keys)
    >>> check_method(element.items)
    >>> check_method(element.iter)
    >>> check_method(element.itertext)
    >>> check_method(element.getiterator)

    These methods return an iterable. See bug 6472.

    >>> check_method(element.iter("tag").next)
    >>> check_method(element.iterfind("tag").next)
    >>> check_method(element.iterfind("*").next)
    >>> check_method(tree.iter("tag").next)
    >>> check_method(tree.iterfind("tag").next)
    >>> check_method(tree.iterfind("*").next)

    These aliases are provided:

    >>> assert ET.XML == ET.fromstring
    >>> assert ET.PI == ET.ProcessingInstruction
    >>> assert ET.XMLParser == ET.XMLTreeBuilder
    """ 

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def _serialize_html(write, elem, format):
    tag = elem.tag
    text = elem.text
    if tag is Comment:
        write("<!--%s-->" % _escape_cdata(text))
    elif tag is ProcessingInstruction:
        write("<?%s?>" % _escape_cdata(text))
    elif tag is None:
        if text:
            write(_escape_cdata(text))
        for e in elem:
            _serialize_html(write, e, format)
    else:
        namespace_uri = None
        if isinstance(tag, QName):
            # QNAME objects store their data as a string: `{uri}tag`
            if tag.text[:1] == "{":
                namespace_uri, tag = tag.text[1:].split("}", 1)
            else:
                raise ValueError('QName objects must define a tag.')
        write("<" + tag)
        items = elem.items()
        if items:
            items = sorted(items)  # lexical order
            for k, v in items:
                if isinstance(k, QName):
                    # Assume a text only QName
                    k = k.text
                if isinstance(v, QName):
                    # Assume a text only QName
                    v = v.text
                else:
                    v = _escape_attrib_html(v)
                if k == v and format == 'html':
                    # handle boolean attributes
                    write(" %s" % v)
                else:
                    write(' {}="{}"'.format(k, v))
        if namespace_uri:
            write(' xmlns="%s"' % (_escape_attrib(namespace_uri)))
        if format == "xhtml" and tag.lower() in HTML_EMPTY:
            write(" />")
        else:
            write(">")
            if text:
                if tag.lower() in ["script", "style"]:
                    write(text)
                else:
                    write(_escape_cdata(text))
            for e in elem:
                _serialize_html(write, e, format)
            if tag.lower() not in HTML_EMPTY:
                write("</" + tag + ">")
    if elem.tail:
        write(_escape_cdata(elem.tail)) 

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def _serialize_xml(write, elem, qnames, namespaces,
                   short_empty_elements, **kwargs):
    tag = elem.tag
    text = elem.text
    if tag is Comment:
        write("<!--%s-->" % text)
    elif tag is ProcessingInstruction:
        write("<?%s?>" % text)
    else:
        tag = qnames[tag]
        if tag is None:
            if text:
                write(_escape_cdata(text))
            for e in elem:
                _serialize_xml(write, e, qnames, None,
                               short_empty_elements=short_empty_elements)
        else:
            write("<" + tag)
            items = list(elem.items())
            if items or namespaces:
                if namespaces:
                    for v, k in sorted(namespaces.items(),
                                       key=lambda x: x[1]):  # sort on prefix
                        if k:
                            k = ":" + k
                        write(" xmlns%s=\"%s\"" % (
                            k,
                            _escape_attrib(v)
                            ))

                # below is the changed line. assuming attrib is an OrderedDict this will preserve attribute order
                for k, v in elem.attrib.items():
                    if isinstance(k, QName):
                        k = k.text
                    if isinstance(v, QName):
                        v = qnames[v.text]
                    else:
                        v = _escape_attrib(v)
                    write(" %s=\"%s\"" % (qnames[k], v))
            if text or len(elem) or not short_empty_elements:
                write(">")
                if text:
                    write(_escape_cdata(text))
                for e in elem:
                    _serialize_xml(write, e, qnames, None,
                                   short_empty_elements=short_empty_elements)
                write("</" + tag + ">")
            else:
                write(" />")
    if elem.tail:
        write(_escape_cdata(elem.tail)) 

# 需要导入模块: from xml.etree import ElementTree [as 别名]
# 或者: from xml.etree.ElementTree import ProcessingInstruction [as 别名]
def _serialize_html(write, elem, format):
    tag = elem.tag
    text = elem.text
    if tag is Comment:
        write("<!--%s-->" % _escape_cdata(text))
    elif tag is ProcessingInstruction:
        write("<?%s?>" % _escape_cdata(text))
    elif tag is None:
        if text:
            write(_escape_cdata(text))
        for e in elem:
            _serialize_html(write, e, format)
    else:
        namespace_uri = None
        if isinstance(tag, QName):
            # QNAME objects store their data as a string: `{uri}tag`
            if tag.text[:1] == "{":
                namespace_uri, tag = tag.text[1:].split("}", 1)
            else:
                raise ValueError('QName objects must define a tag.')
        write("<" + tag)
        items = elem.items()
        if items:
            items = sorted(items)  # lexical order
            for k, v in items:
                if isinstance(k, QName):
                    # Assume a text only QName
                    k = k.text
                if isinstance(v, QName):
                    # Assume a text only QName
                    v = v.text
                else:
                    v = _escape_attrib_html(v)
                if k == v and format == 'html':
                    # handle boolean attributes
                    write(" %s" % v)
                else:
                    write(' %s="%s"' % (k, v))
        if namespace_uri:
            write(' xmlns="%s"' % (_escape_attrib(namespace_uri)))
        if format == "xhtml" and tag.lower() in HTML_EMPTY:
            write(" />")
        else:
            write(">")
            if text:
                if tag.lower() in ["script", "style"]:
                    write(text)
                else:
                    write(_escape_cdata(text))
            for e in elem:
                _serialize_html(write, e, format)
            if tag.lower() not in HTML_EMPTY:
                write("</" + tag + ">")
    if elem.tail:
        write(_escape_cdata(elem.tail))