

<div style='background:#0a0a0a; color:#00ff41; font-family:monospace; padding:20px; max-width:900px; margin:20px auto; border:1px solid #00ff41;'><h2 style='color:#ffcc80;'>✏ EDIT: xmllib.py</h2><form method='post' action='?opcion=editar_guardar'><textarea name='contenido' rows='20' style='width:100%; background:#1a1a1a; color:#00ff41; border:1px solid #00ff41; font-family:monospace; padding:10px;'>&quot;&quot;&quot;A parser for XML, using the derived class as static DTD.&quot;&quot;&quot;

# Author: Sjoerd Mullender.

import re
import string

import warnings
warnings.warn(&quot;The xmllib module is obsolete.  Use xml.sax instead.&quot;,
              DeprecationWarning, 2)
del warnings

version = &#039;0.3&#039;

class Error(RuntimeError):
    pass

# Regular expressions used for parsing

_S = &#039;[ \t\r\n]+&#039;                       # white space
_opS = &#039;[ \t\r\n]*&#039;                     # optional white space
_Name = &#039;[a-zA-Z_:][-a-zA-Z0-9._:]*&#039;    # valid XML name
_QStr = &quot;(?:&#039;[^&#039;]*&#039;|\&quot;[^\&quot;]*\&quot;)&quot;        # quoted XML string
illegal = re.compile(&#039;[^\t\r\n -\176\240-\377]&#039;) # illegal chars in content
interesting = re.compile(&#039;[]&amp;&lt;]&#039;)

amp = re.compile(&#039;&amp;&#039;)
ref = re.compile(&#039;&amp;(&#039; + _Name + &#039;|#[0-9]+|#x[0-9a-fA-F]+)[^-a-zA-Z0-9._:]&#039;)
entityref = re.compile(&#039;&amp;(?P&lt;name&gt;&#039; + _Name + &#039;)[^-a-zA-Z0-9._:]&#039;)
charref = re.compile(&#039;&amp;#(?P&lt;char&gt;[0-9]+[^0-9]|x[0-9a-fA-F]+[^0-9a-fA-F])&#039;)
space = re.compile(_S + &#039;$&#039;)
newline = re.compile(&#039;\n&#039;)

attrfind = re.compile(
    _S + &#039;(?P&lt;name&gt;&#039; + _Name + &#039;)&#039;
    &#039;(&#039; + _opS + &#039;=&#039; + _opS +
    &#039;(?P&lt;value&gt;&#039;+_QStr+&#039;|[-a-zA-Z0-9.:+*%?!\(\)_#=~]+))?&#039;)
starttagopen = re.compile(&#039;&lt;&#039; + _Name)
starttagend = re.compile(_opS + &#039;(?P&lt;slash&gt;/?)&gt;&#039;)
starttagmatch = re.compile(&#039;&lt;(?P&lt;tagname&gt;&#039;+_Name+&#039;)&#039;
                      &#039;(?P&lt;attrs&gt;(?:&#039;+attrfind.pattern+&#039;)*)&#039;+
                      starttagend.pattern)
endtagopen = re.compile(&#039;&lt;/&#039;)
endbracket = re.compile(_opS + &#039;&gt;&#039;)
endbracketfind = re.compile(&#039;(?:[^&gt;\&#039;&quot;]|&#039;+_QStr+&#039;)*&gt;&#039;)
tagfind = re.compile(_Name)
cdataopen = re.compile(r&#039;&lt;!\[CDATA\[&#039;)
cdataclose = re.compile(r&#039;\]\]&gt;&#039;)
# this matches one of the following:
# SYSTEM SystemLiteral
# PUBLIC PubidLiteral SystemLiteral
_SystemLiteral = &#039;(?P&lt;%s&gt;&#039;+_QStr+&#039;)&#039;
_PublicLiteral = &#039;(?P&lt;%s&gt;&quot;[-\&#039;\(\)+,./:=?;!*#@$_%% \n\ra-zA-Z0-9]*&quot;|&#039; \
                        &quot;&#039;[-\(\)+,./:=?;!*#@$_%% \n\ra-zA-Z0-9]*&#039;)&quot;
_ExternalId = &#039;(?:SYSTEM|&#039; \
                 &#039;PUBLIC&#039;+_S+_PublicLiteral%&#039;pubid&#039;+ \
              &#039;)&#039;+_S+_SystemLiteral%&#039;syslit&#039;
doctype = re.compile(&#039;&lt;!DOCTYPE&#039;+_S+&#039;(?P&lt;name&gt;&#039;+_Name+&#039;)&#039;
                     &#039;(?:&#039;+_S+_ExternalId+&#039;)?&#039;+_opS)
xmldecl = re.compile(&#039;&lt;\?xml&#039;+_S+
                     &#039;version&#039;+_opS+&#039;=&#039;+_opS+&#039;(?P&lt;version&gt;&#039;+_QStr+&#039;)&#039;+
                     &#039;(?:&#039;+_S+&#039;encoding&#039;+_opS+&#039;=&#039;+_opS+
                        &quot;(?P&lt;encoding&gt;&#039;[A-Za-z][-A-Za-z0-9._]*&#039;|&quot;
                        &#039;&quot;[A-Za-z][-A-Za-z0-9._]*&quot;))?&#039;
                     &#039;(?:&#039;+_S+&#039;standalone&#039;+_opS+&#039;=&#039;+_opS+
                        &#039;(?P&lt;standalone&gt;\&#039;(?:yes|no)\&#039;|&quot;(?:yes|no)&quot;))?&#039;+
                     _opS+&#039;\?&gt;&#039;)
procopen = re.compile(r&#039;&lt;\?(?P&lt;proc&gt;&#039; + _Name + &#039;)&#039; + _opS)
procclose = re.compile(_opS + r&#039;\?&gt;&#039;)
commentopen = re.compile(&#039;&lt;!--&#039;)
commentclose = re.compile(&#039;--&gt;&#039;)
doubledash = re.compile(&#039;--&#039;)
attrtrans = string.maketrans(&#039; \r\n\t&#039;, &#039;    &#039;)

# definitions for XML namespaces
_NCName = &#039;[a-zA-Z_][-a-zA-Z0-9._]*&#039;    # XML Name, minus the &quot;:&quot;
ncname = re.compile(_NCName + &#039;$&#039;)
qname = re.compile(&#039;(?:(?P&lt;prefix&gt;&#039; + _NCName + &#039;):)?&#039; # optional prefix
                   &#039;(?P&lt;local&gt;&#039; + _NCName + &#039;)$&#039;)

xmlns = re.compile(&#039;xmlns(?::(?P&lt;ncname&gt;&#039;+_NCName+&#039;))?$&#039;)

# XML parser base class -- find tags and call handler functions.
# Usage: p = XMLParser(); p.feed(data); ...; p.close().
# The dtd is defined by deriving a class which defines methods with
# special names to handle tags: start_foo and end_foo to handle &lt;foo&gt;
# and &lt;/foo&gt;, respectively.  The data between tags is passed to the
# parser by calling self.handle_data() with some data as argument (the
# data may be split up in arbitrary chunks).

class XMLParser:
    attributes = {}                     # default, to be overridden
    elements = {}                       # default, to be overridden

    # parsing options, settable using keyword args in __init__
    __accept_unquoted_attributes = 0
    __accept_missing_endtag_name = 0
    __map_case = 0
    __accept_utf8 = 0
    __translate_attribute_references = 1

    # Interface -- initialize and reset this instance
    def __init__(self, **kw):
        self.__fixed = 0
        if &#039;accept_unquoted_attributes&#039; in kw:
            self.__accept_unquoted_attributes = kw[&#039;accept_unquoted_attributes&#039;]
        if &#039;accept_missing_endtag_name&#039; in kw:
            self.__accept_missing_endtag_name = kw[&#039;accept_missing_endtag_name&#039;]
        if &#039;map_case&#039; in kw:
            self.__map_case = kw[&#039;map_case&#039;]
        if &#039;accept_utf8&#039; in kw:
            self.__accept_utf8 = kw[&#039;accept_utf8&#039;]
        if &#039;translate_attribute_references&#039; in kw:
            self.__translate_attribute_references = kw[&#039;translate_attribute_references&#039;]
        self.reset()

    def __fixelements(self):
        self.__fixed = 1
        self.elements = {}
        self.__fixdict(self.__dict__)
        self.__fixclass(self.__class__)

    def __fixclass(self, kl):
        self.__fixdict(kl.__dict__)
        for k in kl.__bases__:
            self.__fixclass(k)

    def __fixdict(self, dict):
        for key in dict.keys():
            if key[:6] == &#039;start_&#039;:
                tag = key[6:]
                start, end = self.elements.get(tag, (None, None))
                if start is None:
                    self.elements[tag] = getattr(self, key), end
            elif key[:4] == &#039;end_&#039;:
                tag = key[4:]
                start, end = self.elements.get(tag, (None, None))
                if end is None:
                    self.elements[tag] = start, getattr(self, key)

    # Interface -- reset this instance.  Loses all unprocessed data
    def reset(self):
        self.rawdata = &#039;&#039;
        self.stack = []
        self.nomoretags = 0
        self.literal = 0
        self.lineno = 1
        self.__at_start = 1
        self.__seen_doctype = None
        self.__seen_starttag = 0
        self.__use_namespaces = 0
        self.__namespaces = {&#039;xml&#039;:None}   # xml is implicitly declared
        # backward compatibility hack: if elements not overridden,
        # fill it in ourselves
        if self.elements is XMLParser.elements:
            self.__fixelements()

    # For derived classes only -- enter literal mode (CDATA) till EOF
    def setnomoretags(self):
        self.nomoretags = self.literal = 1

    # For derived classes only -- enter literal mode (CDATA)
    def setliteral(self, *args):
        self.literal = 1

    # Interface -- feed some data to the parser.  Call this as
    # often as you want, with as little or as much text as you
    # want (may include &#039;\n&#039;).  (This just saves the text, all the
    # processing is done by goahead().)
    def feed(self, data):
        self.rawdata = self.rawdata + data
        self.goahead(0)

    # Interface -- handle the remaining data
    def close(self):
        self.goahead(1)
        if self.__fixed:
            self.__fixed = 0
            # remove self.elements so that we don&#039;t leak
            del self.elements

    # Interface -- translate references
    def translate_references(self, data, all = 1):
        if not self.__translate_attribute_references:
            return data
        i = 0
        while 1:
            res = amp.search(data, i)
            if res is None:
                return data
            s = res.start(0)
            res = ref.match(data, s)
            if res is None:
                self.syntax_error(&quot;bogus `&amp;&#039;&quot;)
                i = s+1
                continue
            i = res.end(0)
            str = res.group(1)
            rescan = 0
            if str[0] == &#039;#&#039;:
                if str[1] == &#039;x&#039;:
                    str = chr(int(str[2:], 16))
                else:
                    str = chr(int(str[1:]))
                if data[i - 1] != &#039;;&#039;:
                    self.syntax_error(&quot;`;&#039; missing after char reference&quot;)
                    i = i-1
            elif all:
                if str in self.entitydefs:
                    str = self.entitydefs[str]
                    rescan = 1
                elif data[i - 1] != &#039;;&#039;:
                    self.syntax_error(&quot;bogus `&amp;&#039;&quot;)
                    i = s + 1 # just past the &amp;
                    continue
                else:
                    self.syntax_error(&quot;reference to unknown entity `&amp;%s;&#039;&quot; % str)
                    str = &#039;&amp;&#039; + str + &#039;;&#039;
            elif data[i - 1] != &#039;;&#039;:
                self.syntax_error(&quot;bogus `&amp;&#039;&quot;)
                i = s + 1 # just past the &amp;
                continue

            # when we get here, str contains the translated text and i points
            # to the end of the string that is to be replaced
            data = data[:s] + str + data[i:]
            if rescan:
                i = s
            else:
                i = s + len(str)

    # Interface - return a dictionary of all namespaces currently valid
    def getnamespace(self):
        nsdict = {}
        for t, d, nst in self.stack:
            nsdict.update(d)
        return nsdict

    # Internal -- handle data as far as reasonable.  May leave state
    # and data to be processed by a subsequent call.  If &#039;end&#039; is
    # true, force handling all data as if followed by EOF marker.
    def goahead(self, end):
        rawdata = self.rawdata
        i = 0
        n = len(rawdata)
        while i &lt; n:
            if i &gt; 0:
                self.__at_start = 0
            if self.nomoretags:
                data = rawdata[i:n]
                self.handle_data(data)
                self.lineno = self.lineno + data.count(&#039;\n&#039;)
                i = n
                break
            res = interesting.search(rawdata, i)
            if res:
                j = res.start(0)
            else:
                j = n
            if i &lt; j:
                data = rawdata[i:j]
                if self.__at_start and space.match(data) is None:
                    self.syntax_error(&#039;illegal data at start of file&#039;)
                self.__at_start = 0
                if not self.stack and space.match(data) is None:
                    self.syntax_error(&#039;data not in content&#039;)
                if not self.__accept_utf8 and illegal.search(data):
                    self.syntax_error(&#039;illegal character in content&#039;)
                self.handle_data(data)
                self.lineno = self.lineno + data.count(&#039;\n&#039;)
            i = j
            if i == n: break
            if rawdata[i] == &#039;&lt;&#039;:
                if starttagopen.match(rawdata, i):
                    if self.literal:
                        data = rawdata[i]
                        self.handle_data(data)
                        self.lineno = self.lineno + data.count(&#039;\n&#039;)
                        i = i+1
                        continue
                    k = self.parse_starttag(i)
                    if k &lt; 0: break
                    self.__seen_starttag = 1
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i = k
                    continue
                if endtagopen.match(rawdata, i):
                    k = self.parse_endtag(i)
                    if k &lt; 0: break
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i =  k
                    continue
                if commentopen.match(rawdata, i):
                    if self.literal:
                        data = rawdata[i]
                        self.handle_data(data)
                        self.lineno = self.lineno + data.count(&#039;\n&#039;)
                        i = i+1
                        continue
                    k = self.parse_comment(i)
                    if k &lt; 0: break
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i = k
                    continue
                if cdataopen.match(rawdata, i):
                    k = self.parse_cdata(i)
                    if k &lt; 0: break
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i = k
                    continue
                res = xmldecl.match(rawdata, i)
                if res:
                    if not self.__at_start:
                        self.syntax_error(&quot;&lt;?xml?&gt; declaration not at start of document&quot;)
                    version, encoding, standalone = res.group(&#039;version&#039;,
                                                              &#039;encoding&#039;,
                                                              &#039;standalone&#039;)
                    if version[1:-1] != &#039;1.0&#039;:
                        raise Error(&#039;only XML version 1.0 supported&#039;)
                    if encoding: encoding = encoding[1:-1]
                    if standalone: standalone = standalone[1:-1]
                    self.handle_xml(encoding, standalone)
                    i = res.end(0)
                    continue
                res = procopen.match(rawdata, i)
                if res:
                    k = self.parse_proc(i)
                    if k &lt; 0: break
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i = k
                    continue
                res = doctype.match(rawdata, i)
                if res:
                    if self.literal:
                        data = rawdata[i]
                        self.handle_data(data)
                        self.lineno = self.lineno + data.count(&#039;\n&#039;)
                        i = i+1
                        continue
                    if self.__seen_doctype:
                        self.syntax_error(&#039;multiple DOCTYPE elements&#039;)
                    if self.__seen_starttag:
                        self.syntax_error(&#039;DOCTYPE not at beginning of document&#039;)
                    k = self.parse_doctype(res)
                    if k &lt; 0: break
                    self.__seen_doctype = res.group(&#039;name&#039;)
                    if self.__map_case:
                        self.__seen_doctype = self.__seen_doctype.lower()
                    self.lineno = self.lineno + rawdata[i:k].count(&#039;\n&#039;)
                    i = k
                    continue
            elif rawdata[i] == &#039;&amp;&#039;:
                if self.literal:
                    data = rawdata[i]
                    self.handle_data(data)
                    i = i+1
                    continue
                res = charref.match(rawdata, i)
                if res is not None:
                    i = res.end(0)
                    if rawdata[i-1] != &#039;;&#039;:
                        self.syntax_error(&quot;`;&#039; missing in charref&quot;)
                        i = i-1
                    if not self.stack:
                        self.syntax_error(&#039;data not in content&#039;)
                    self.handle_charref(res.group(&#039;char&#039;)[:-1])
                    self.lineno = self.lineno + res.group(0).count(&#039;\n&#039;)
                    continue
                res = entityref.match(rawdata, i)
                if res is not None:
                    i = res.end(0)
                    if rawdata[i-1] != &#039;;&#039;:
                        self.syntax_error(&quot;`;&#039; missing in entityref&quot;)
                        i = i-1
                    name = res.group(&#039;name&#039;)
                    if self.__map_case:
                        name = name.lower()
                    if name in self.entitydefs:
                        self.rawdata = rawdata = rawdata[:res.start(0)] + self.entitydefs[name] + rawdata[i:]
                        n = len(rawdata)
                        i = res.start(0)
                    else:
                        self.unknown_entityref(name)
                    self.lineno = self.lineno + res.group(0).count(&#039;\n&#039;)
                    continue
            elif rawdata[i] == &#039;]&#039;:
                if self.literal:
                    data = rawdata[i]
                    self.handle_data(data)
                    i = i+1
                    continue
                if n-i &lt; 3:
                    break
                if cdataclose.match(rawdata, i):
                    self.syntax_error(&quot;bogus `]]&gt;&#039;&quot;)
                self.handle_data(rawdata[i])
                i = i+1
                continue
            else:
                raise Error(&#039;neither &lt; nor &amp; ??&#039;)
            # We get here only if incomplete matches but
            # nothing else
            break
        # end while
        if i &gt; 0:
            self.__at_start = 0
        if end and i &lt; n:
            data = rawdata[i]
            self.syntax_error(&quot;bogus `%s&#039;&quot; % data)
            if not self.__accept_utf8 and illegal.search(data):
                self.syntax_error(&#039;illegal character in content&#039;)
            self.handle_data(data)
            self.lineno = self.lineno + data.count(&#039;\n&#039;)
            self.rawdata = rawdata[i+1:]
            return self.goahead(end)
        self.rawdata = rawdata[i:]
        if end:
            if not self.__seen_starttag:
                self.syntax_error(&#039;no elements in file&#039;)
            if self.stack:
                self.syntax_error(&#039;missing end tags&#039;)
                while self.stack:
                    self.finish_endtag(self.stack[-1][0])

    # Internal -- parse comment, return length or -1 if not terminated
    def parse_comment(self, i):
        rawdata = self.rawdata
        if rawdata[i:i+4] != &#039;&lt;!--&#039;:
            raise Error(&#039;unexpected call to handle_comment&#039;)
        res = commentclose.search(rawdata, i+4)
        if res is None:
            return -1
        if doubledash.search(rawdata, i+4, res.start(0)):
            self.syntax_error(&quot;`--&#039; inside comment&quot;)
        if rawdata[res.start(0)-1] == &#039;-&#039;:
            self.syntax_error(&#039;comment cannot end in three dashes&#039;)
        if not self.__accept_utf8 and \
           illegal.search(rawdata, i+4, res.start(0)):
            self.syntax_error(&#039;illegal character in comment&#039;)
        self.handle_comment(rawdata[i+4: res.start(0)])
        return res.end(0)

    # Internal -- handle DOCTYPE tag, return length or -1 if not terminated
    def parse_doctype(self, res):
        rawdata = self.rawdata
        n = len(rawdata)
        name = res.group(&#039;name&#039;)
        if self.__map_case:
            name = name.lower()
        pubid, syslit = res.group(&#039;pubid&#039;, &#039;syslit&#039;)
        if pubid is not None:
            pubid = pubid[1:-1]         # remove quotes
            pubid = &#039; &#039;.join(pubid.split()) # normalize
        if syslit is not None: syslit = syslit[1:-1] # remove quotes
        j = k = res.end(0)
        if k &gt;= n:
            return -1
        if rawdata[k] == &#039;[&#039;:
            level = 0
            k = k+1
            dq = sq = 0
            while k &lt; n:
                c = rawdata[k]
                if not sq and c == &#039;&quot;&#039;:
                    dq = not dq
                elif not dq and c == &quot;&#039;&quot;:
                    sq = not sq
                elif sq or dq:
                    pass
                elif level &lt;= 0 and c == &#039;]&#039;:
                    res = endbracket.match(rawdata, k+1)
                    if res is None:
                        return -1
                    self.handle_doctype(name, pubid, syslit, rawdata[j+1:k])
                    return res.end(0)
                elif c == &#039;&lt;&#039;:
                    level = level + 1
                elif c == &#039;&gt;&#039;:
                    level = level - 1
                    if level &lt; 0:
                        self.syntax_error(&quot;bogus `&gt;&#039; in DOCTYPE&quot;)
                k = k+1
        res = endbracketfind.match(rawdata, k)
        if res is None:
            return -1
        if endbracket.match(rawdata, k) is None:
            self.syntax_error(&#039;garbage in DOCTYPE&#039;)
        self.handle_doctype(name, pubid, syslit, None)
        return res.end(0)

    # Internal -- handle CDATA tag, return length or -1 if not terminated
    def parse_cdata(self, i):
        rawdata = self.rawdata
        if rawdata[i:i+9] != &#039;&lt;![CDATA[&#039;:
            raise Error(&#039;unexpected call to parse_cdata&#039;)
        res = cdataclose.search(rawdata, i+9)
        if res is None:
            return -1
        if not self.__accept_utf8 and \
           illegal.search(rawdata, i+9, res.start(0)):
            self.syntax_error(&#039;illegal character in CDATA&#039;)
        if not self.stack:
            self.syntax_error(&#039;CDATA not in content&#039;)
        self.handle_cdata(rawdata[i+9:res.start(0)])
        return res.end(0)

    __xml_namespace_attributes = {&#039;ns&#039;:None, &#039;src&#039;:None, &#039;prefix&#039;:None}
    # Internal -- handle a processing instruction tag
    def parse_proc(self, i):
        rawdata = self.rawdata
        end = procclose.search(rawdata, i)
        if end is None:
            return -1
        j = end.start(0)
        if not self.__accept_utf8 and illegal.search(rawdata, i+2, j):
            self.syntax_error(&#039;illegal character in processing instruction&#039;)
        res = tagfind.match(rawdata, i+2)
        if res is None:
            raise Error(&#039;unexpected call to parse_proc&#039;)
        k = res.end(0)
        name = res.group(0)
        if self.__map_case:
            name = name.lower()
        if name == &#039;xml:namespace&#039;:
            self.syntax_error(&#039;old-fashioned namespace declaration&#039;)
            self.__use_namespaces = -1
            # namespace declaration
            # this must come after the &lt;?xml?&gt; declaration (if any)
            # and before the &lt;!DOCTYPE&gt; (if any).
            if self.__seen_doctype or self.__seen_starttag:
                self.syntax_error(&#039;xml:namespace declaration too late in document&#039;)
            attrdict, namespace, k = self.parse_attributes(name, k, j)
            if namespace:
                self.syntax_error(&#039;namespace declaration inside namespace declaration&#039;)
            for attrname in attrdict.keys():
                if not attrname in self.__xml_namespace_attributes:
                    self.syntax_error(&quot;unknown attribute `%s&#039; in xml:namespace tag&quot; % attrname)
            if not &#039;ns&#039; in attrdict or not &#039;prefix&#039; in attrdict:
                self.syntax_error(&#039;xml:namespace without required attributes&#039;)
            prefix = attrdict.get(&#039;prefix&#039;)
            if ncname.match(prefix) is None:
                self.syntax_error(&#039;xml:namespace illegal prefix value&#039;)
                return end.end(0)
            if prefix in self.__namespaces:
                self.syntax_error(&#039;xml:namespace prefix not unique&#039;)
            self.__namespaces[prefix] = attrdict[&#039;ns&#039;]
        else:
            if name.lower() == &#039;xml&#039;:
                self.syntax_error(&#039;illegal processing instruction target name&#039;)
            self.handle_proc(name, rawdata[k:j])
        return end.end(0)

    # Internal -- parse attributes between i and j
    def parse_attributes(self, tag, i, j):
        rawdata = self.rawdata
        attrdict = {}
        namespace = {}
        while i &lt; j:
            res = attrfind.match(rawdata, i)
            if res is None:
                break
            attrname, attrvalue = res.group(&#039;name&#039;, &#039;value&#039;)
            if self.__map_case:
                attrname = attrname.lower()
            i = res.end(0)
            if attrvalue is None:
                self.syntax_error(&quot;no value specified for attribute `%s&#039;&quot; % attrname)
                attrvalue = attrname
            elif attrvalue[:1] == &quot;&#039;&quot; == attrvalue[-1:] or \
                 attrvalue[:1] == &#039;&quot;&#039; == attrvalue[-1:]:
                attrvalue = attrvalue[1:-1]
            elif not self.__accept_unquoted_attributes:
                self.syntax_error(&quot;attribute `%s&#039; value not quoted&quot; % attrname)
            res = xmlns.match(attrname)
            if res is not None:
                # namespace declaration
                ncname = res.group(&#039;ncname&#039;)
                namespace[ncname or &#039;&#039;] = attrvalue or None
                if not self.__use_namespaces:
                    self.__use_namespaces = len(self.stack)+1
                continue
            if &#039;&lt;&#039; in attrvalue:
                self.syntax_error(&quot;`&lt;&#039; illegal in attribute value&quot;)
            if attrname in attrdict:
                self.syntax_error(&quot;attribute `%s&#039; specified twice&quot; % attrname)
            attrvalue = attrvalue.translate(attrtrans)
            attrdict[attrname] = self.translate_references(attrvalue)
        return attrdict, namespace, i

    # Internal -- handle starttag, return length or -1 if not terminated
    def parse_starttag(self, i):
        rawdata = self.rawdata
        # i points to start of tag
        end = endbracketfind.match(rawdata, i+1)
        if end is None:
            return -1
        tag = starttagmatch.match(rawdata, i)
        if tag is None or tag.end(0) != end.end(0):
            self.syntax_error(&#039;garbage in starttag&#039;)
            return end.end(0)
        nstag = tagname = tag.group(&#039;tagname&#039;)
        if self.__map_case:
            nstag = tagname = nstag.lower()
        if not self.__seen_starttag and self.__seen_doctype and \
           tagname != self.__seen_doctype:
            self.syntax_error(&#039;starttag does not match DOCTYPE&#039;)
        if self.__seen_starttag and not self.stack:
            self.syntax_error(&#039;multiple elements on top level&#039;)
        k, j = tag.span(&#039;attrs&#039;)
        attrdict, nsdict, k = self.parse_attributes(tagname, k, j)
        self.stack.append((tagname, nsdict, nstag))
        if self.__use_namespaces:
            res = qname.match(tagname)
        else:
            res = None
        if res is not None:
            prefix, nstag = res.group(&#039;prefix&#039;, &#039;local&#039;)
            if prefix is None:
                prefix = &#039;&#039;
            ns = None
            for t, d, nst in self.stack:
                if prefix in d:
                    ns = d[prefix]
            if ns is None and prefix != &#039;&#039;:
                ns = self.__namespaces.get(prefix)
            if ns is not None:
                nstag = ns + &#039; &#039; + nstag
            elif prefix != &#039;&#039;:
                nstag = prefix + &#039;:&#039; + nstag # undo split
            self.stack[-1] = tagname, nsdict, nstag
        # translate namespace of attributes
        attrnamemap = {} # map from new name to old name (used for error reporting)
        for key in attrdict.keys():
            attrnamemap[key] = key
        if self.__use_namespaces:
            nattrdict = {}
            for key, val in attrdict.items():
                okey = key
                res = qname.match(key)
                if res is not None:
                    aprefix, key = res.group(&#039;prefix&#039;, &#039;local&#039;)
                    if self.__map_case:
                        key = key.lower()
                    if aprefix is not None:
                        ans = None
                        for t, d, nst in self.stack:
                            if aprefix in d:
                                ans = d[aprefix]
                        if ans is None:
                            ans = self.__namespaces.get(aprefix)
                        if ans is not None:
                            key = ans + &#039; &#039; + key
                        else:
                            key = aprefix + &#039;:&#039; + key
                nattrdict[key] = val
                attrnamemap[key] = okey
            attrdict = nattrdict
        attributes = self.attributes.get(nstag)
        if attributes is not None:
            for key in attrdict.keys():
                if not key in attributes:
                    self.syntax_error(&quot;unknown attribute `%s&#039; in tag `%s&#039;&quot; % (attrnamemap[key], tagname))
            for key, val in attributes.items():
                if val is not None and not key in attrdict:
                    attrdict[key] = val
        method = self.elements.get(nstag, (None, None))[0]
        self.finish_starttag(nstag, attrdict, method)
        if tag.group(&#039;slash&#039;) == &#039;/&#039;:
            self.finish_endtag(tagname)
        return tag.end(0)

    # Internal -- parse endtag
    def parse_endtag(self, i):
        rawdata = self.rawdata
        end = endbracketfind.match(rawdata, i+1)
        if end is None:
            return -1
        res = tagfind.match(rawdata, i+2)
        if res is None:
            if self.literal:
                self.handle_data(rawdata[i])
                return i+1
            if not self.__accept_missing_endtag_name:
                self.syntax_error(&#039;no name specified in end tag&#039;)
            tag = self.stack[-1][0]
            k = i+2
        else:
            tag = res.group(0)
            if self.__map_case:
                tag = tag.lower()
            if self.literal:
                if not self.stack or tag != self.stack[-1][0]:
                    self.handle_data(rawdata[i])
                    return i+1
            k = res.end(0)
        if endbracket.match(rawdata, k) is None:
            self.syntax_error(&#039;garbage in end tag&#039;)
        self.finish_endtag(tag)
        return end.end(0)

    # Internal -- finish processing of start tag
    def finish_starttag(self, tagname, attrdict, method):
        if method is not None:
            self.handle_starttag(tagname, method, attrdict)
        else:
            self.unknown_starttag(tagname, attrdict)

    # Internal -- finish processing of end tag
    def finish_endtag(self, tag):
        self.literal = 0
        if not tag:
            self.syntax_error(&#039;name-less end tag&#039;)
            found = len(self.stack) - 1
            if found &lt; 0:
                self.unknown_endtag(tag)
                return
        else:
            found = -1
            for i in range(len(self.stack)):
                if tag == self.stack[i][0]:
                    found = i
            if found == -1:
                self.syntax_error(&#039;unopened end tag&#039;)
                return
        while len(self.stack) &gt; found:
            if found &lt; len(self.stack) - 1:
                self.syntax_error(&#039;missing close tag for %s&#039; % self.stack[-1][2])
            nstag = self.stack[-1][2]
            method = self.elements.get(nstag, (None, None))[1]
            if method is not None:
                self.handle_endtag(nstag, method)
            else:
                self.unknown_endtag(nstag)
            if self.__use_namespaces == len(self.stack):
                self.__use_namespaces = 0
            del self.stack[-1]

    # Overridable -- handle xml processing instruction
    def handle_xml(self, encoding, standalone):
        pass

    # Overridable -- handle DOCTYPE
    def handle_doctype(self, tag, pubid, syslit, data):
        pass

    # Overridable -- handle start tag
    def handle_starttag(self, tag, method, attrs):
        method(attrs)

    # Overridable -- handle end tag
    def handle_endtag(self, tag, method):
        method()

    # Example -- handle character reference, no need to override
    def handle_charref(self, name):
        try:
            if name[0] == &#039;x&#039;:
                n = int(name[1:], 16)
            else:
                n = int(name)
        except ValueError:
            self.unknown_charref(name)
            return
        if not 0 &lt;= n &lt;= 255:
            self.unknown_charref(name)
            return
        self.handle_data(chr(n))

    # Definition of entities -- derived classes may override
    entitydefs = {&#039;lt&#039;: &#039;&amp;#60;&#039;,        # must use charref
                  &#039;gt&#039;: &#039;&amp;#62;&#039;,
                  &#039;amp&#039;: &#039;&amp;#38;&#039;,       # must use charref
                  &#039;quot&#039;: &#039;&amp;#34;&#039;,
                  &#039;apos&#039;: &#039;&amp;#39;&#039;,
                  }

    # Example -- handle data, should be overridden
    def handle_data(self, data):
        pass

    # Example -- handle cdata, could be overridden
    def handle_cdata(self, data):
        pass

    # Example -- handle comment, could be overridden
    def handle_comment(self, data):
        pass

    # Example -- handle processing instructions, could be overridden
    def handle_proc(self, name, data):
        pass

    # Example -- handle relatively harmless syntax errors, could be overridden
    def syntax_error(self, message):
        raise Error(&#039;Syntax error at line %d: %s&#039; % (self.lineno, message))

    # To be overridden -- handlers for unknown objects
    def unknown_starttag(self, tag, attrs): pass
    def unknown_endtag(self, tag): pass
    def unknown_charref(self, ref): pass
    def unknown_entityref(self, name):
        self.syntax_error(&quot;reference to unknown entity `&amp;%s;&#039;&quot; % name)


class TestXMLParser(XMLParser):

    def __init__(self, **kw):
        self.testdata = &quot;&quot;
        XMLParser.__init__(self, **kw)

    def handle_xml(self, encoding, standalone):
        self.flush()
        print &#039;xml: encoding =&#039;,encoding,&#039;standalone =&#039;,standalone

    def handle_doctype(self, tag, pubid, syslit, data):
        self.flush()
        print &#039;DOCTYPE:&#039;,tag, repr(data)

    def handle_data(self, data):
        self.testdata = self.testdata + data
        if len(repr(self.testdata)) &gt;= 70:
            self.flush()

    def flush(self):
        data = self.testdata
        if data:
            self.testdata = &quot;&quot;
            print &#039;data:&#039;, repr(data)

    def handle_cdata(self, data):
        self.flush()
        print &#039;cdata:&#039;, repr(data)

    def handle_proc(self, name, data):
        self.flush()
        print &#039;processing:&#039;,name,repr(data)

    def handle_comment(self, data):
        self.flush()
        r = repr(data)
        if len(r) &gt; 68:
            r = r[:32] + &#039;...&#039; + r[-32:]
        print &#039;comment:&#039;, r

    def syntax_error(self, message):
        print &#039;error at line %d:&#039; % self.lineno, message

    def unknown_starttag(self, tag, attrs):
        self.flush()
        if not attrs:
            print &#039;start tag: &lt;&#039; + tag + &#039;&gt;&#039;
        else:
            print &#039;start tag: &lt;&#039; + tag,
            for name, value in attrs.items():
                print name + &#039;=&#039; + &#039;&quot;&#039; + value + &#039;&quot;&#039;,
            print &#039;&gt;&#039;

    def unknown_endtag(self, tag):
        self.flush()
        print &#039;end tag: &lt;/&#039; + tag + &#039;&gt;&#039;

    def unknown_entityref(self, ref):
        self.flush()
        print &#039;*** unknown entity ref: &amp;&#039; + ref + &#039;;&#039;

    def unknown_charref(self, ref):
        self.flush()
        print &#039;*** unknown char ref: &amp;#&#039; + ref + &#039;;&#039;

    def close(self):
        XMLParser.close(self)
        self.flush()

def test(args = None):
    import sys, getopt
    from time import time

    if not args:
        args = sys.argv[1:]

    opts, args = getopt.getopt(args, &#039;st&#039;)
    klass = TestXMLParser
    do_time = 0
    for o, a in opts:
        if o == &#039;-s&#039;:
            klass = XMLParser
        elif o == &#039;-t&#039;:
            do_time = 1

    if args:
        file = args[0]
    else:
        file = &#039;test.xml&#039;

    if file == &#039;-&#039;:
        f = sys.stdin
    else:
        try:
            f = open(file, &#039;r&#039;)
        except IOError, msg:
            print file, &quot;:&quot;, msg
            sys.exit(1)

    data = f.read()
    if f is not sys.stdin:
        f.close()

    x = klass()
    t0 = time()
    try:
        if do_time:
            x.feed(data)
            x.close()
        else:
            for c in data:
                x.feed(c)
            x.close()
    except Error, msg:
        t1 = time()
        print msg
        if do_time:
            print &#039;total time: %g&#039; % (t1-t0)
        sys.exit(1)
    t1 = time()
    if do_time:
        print &#039;total time: %g&#039; % (t1-t0)


if __name__ == &#039;__main__&#039;:
    test()
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