symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/xml/sax/saxutils.py
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/xml/sax/saxutils.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,302 @@
+"""\
+A library of useful helper classes to the SAX classes, for the
+convenience of application and driver writers.
+"""
+
+import os, urlparse, urllib, types
+import handler
+import xmlreader
+
+try:
+    _StringTypes = [types.StringType, types.UnicodeType]
+except AttributeError:
+    _StringTypes = [types.StringType]
+
+# See whether the xmlcharrefreplace error handler is
+# supported
+try:
+    from codecs import xmlcharrefreplace_errors
+    _error_handling = "xmlcharrefreplace"
+    del xmlcharrefreplace_errors
+except ImportError:
+    _error_handling = "strict"
+
+def __dict_replace(s, d):
+    """Replace substrings of a string using a dictionary."""
+    for key, value in d.items():
+        s = s.replace(key, value)
+    return s
+
+def escape(data, entities={}):
+    """Escape &, <, and > in a string of data.
+
+    You can escape other strings of data by passing a dictionary as
+    the optional entities parameter.  The keys and values must all be
+    strings; each key will be replaced with its corresponding value.
+    """
+
+    # must do ampersand first
+    data = data.replace("&", "&amp;")
+    data = data.replace(">", "&gt;")
+    data = data.replace("<", "&lt;")
+    if entities:
+        data = __dict_replace(data, entities)
+    return data
+
+def unescape(data, entities={}):
+    """Unescape &amp;, &lt;, and &gt; in a string of data.
+
+    You can unescape other strings of data by passing a dictionary as
+    the optional entities parameter.  The keys and values must all be
+    strings; each key will be replaced with its corresponding value.
+    """
+    data = data.replace("&lt;", "<")
+    data = data.replace("&gt;", ">")
+    if entities:
+        data = __dict_replace(data, entities)
+    # must do ampersand last
+    return data.replace("&amp;", "&")
+
+def quoteattr(data, entities={}):
+    """Escape and quote an attribute value.
+
+    Escape &, <, and > in a string of data, then quote it for use as
+    an attribute value.  The \" character will be escaped as well, if
+    necessary.
+
+    You can escape other strings of data by passing a dictionary as
+    the optional entities parameter.  The keys and values must all be
+    strings; each key will be replaced with its corresponding value.
+    """
+    entities = entities.copy()
+    entities.update({'\n': '&#10;', '\r': '&#13;', '\t':'&#9;'})
+    data = escape(data, entities)
+    if '"' in data:
+        if "'" in data:
+            data = '"%s"' % data.replace('"', "&quot;")
+        else:
+            data = "'%s'" % data
+    else:
+        data = '"%s"' % data
+    return data
+
+
+class XMLGenerator(handler.ContentHandler):
+
+    def __init__(self, out=None, encoding="iso-8859-1"):
+        if out is None:
+            import sys
+            out = sys.stdout
+        handler.ContentHandler.__init__(self)
+        self._out = out
+        self._ns_contexts = [{}] # contains uri -> prefix dicts
+        self._current_context = self._ns_contexts[-1]
+        self._undeclared_ns_maps = []
+        self._encoding = encoding
+
+    def _write(self, text):
+        if isinstance(text, str):
+            self._out.write(text)
+        else:
+            self._out.write(text.encode(self._encoding, _error_handling))
+
+    def _qname(self, name):
+        """Builds a qualified name from a (ns_url, localname) pair"""
+        if name[0]:
+            # The name is in a non-empty namespace
+            prefix = self._current_context[name[0]]
+            if prefix:
+                # If it is not the default namespace, prepend the prefix
+                return prefix + ":" + name[1]
+        # Return the unqualified name
+        return name[1]
+
+    # ContentHandler methods
+
+    def startDocument(self):
+        self._write('<?xml version="1.0" encoding="%s"?>\n' %
+                        self._encoding)
+
+    def startPrefixMapping(self, prefix, uri):
+        self._ns_contexts.append(self._current_context.copy())
+        self._current_context[uri] = prefix
+        self._undeclared_ns_maps.append((prefix, uri))
+
+    def endPrefixMapping(self, prefix):
+        self._current_context = self._ns_contexts[-1]
+        del self._ns_contexts[-1]
+
+    def startElement(self, name, attrs):
+        self._write('<' + name)
+        for (name, value) in attrs.items():
+            self._write(' %s=%s' % (name, quoteattr(value)))
+        self._write('>')
+
+    def endElement(self, name):
+        self._write('</%s>' % name)
+
+    def startElementNS(self, name, qname, attrs):
+        self._write('<' + self._qname(name))
+
+        for prefix, uri in self._undeclared_ns_maps:
+            if prefix:
+                self._out.write(' xmlns:%s="%s"' % (prefix, uri))
+            else:
+                self._out.write(' xmlns="%s"' % uri)
+        self._undeclared_ns_maps = []
+
+        for (name, value) in attrs.items():
+            self._write(' %s=%s' % (self._qname(name), quoteattr(value)))
+        self._write('>')
+
+    def endElementNS(self, name, qname):
+        self._write('</%s>' % self._qname(name))
+
+    def characters(self, content):
+        self._write(escape(content))
+
+    def ignorableWhitespace(self, content):
+        self._write(content)
+
+    def processingInstruction(self, target, data):
+        self._write('<?%s %s?>' % (target, data))
+
+
+class XMLFilterBase(xmlreader.XMLReader):
+    """This class is designed to sit between an XMLReader and the
+    client application's event handlers.  By default, it does nothing
+    but pass requests up to the reader and events on to the handlers
+    unmodified, but subclasses can override specific methods to modify
+    the event stream or the configuration requests as they pass
+    through."""
+
+    def __init__(self, parent = None):
+        xmlreader.XMLReader.__init__(self)
+        self._parent = parent
+
+    # ErrorHandler methods
+
+    def error(self, exception):
+        self._err_handler.error(exception)
+
+    def fatalError(self, exception):
+        self._err_handler.fatalError(exception)
+
+    def warning(self, exception):
+        self._err_handler.warning(exception)
+
+    # ContentHandler methods
+
+    def setDocumentLocator(self, locator):
+        self._cont_handler.setDocumentLocator(locator)
+
+    def startDocument(self):
+        self._cont_handler.startDocument()
+
+    def endDocument(self):
+        self._cont_handler.endDocument()
+
+    def startPrefixMapping(self, prefix, uri):
+        self._cont_handler.startPrefixMapping(prefix, uri)
+
+    def endPrefixMapping(self, prefix):
+        self._cont_handler.endPrefixMapping(prefix)
+
+    def startElement(self, name, attrs):
+        self._cont_handler.startElement(name, attrs)
+
+    def endElement(self, name):
+        self._cont_handler.endElement(name)
+
+    def startElementNS(self, name, qname, attrs):
+        self._cont_handler.startElementNS(name, qname, attrs)
+
+    def endElementNS(self, name, qname):
+        self._cont_handler.endElementNS(name, qname)
+
+    def characters(self, content):
+        self._cont_handler.characters(content)
+
+    def ignorableWhitespace(self, chars):
+        self._cont_handler.ignorableWhitespace(chars)
+
+    def processingInstruction(self, target, data):
+        self._cont_handler.processingInstruction(target, data)
+
+    def skippedEntity(self, name):
+        self._cont_handler.skippedEntity(name)
+
+    # DTDHandler methods
+
+    def notationDecl(self, name, publicId, systemId):
+        self._dtd_handler.notationDecl(name, publicId, systemId)
+
+    def unparsedEntityDecl(self, name, publicId, systemId, ndata):
+        self._dtd_handler.unparsedEntityDecl(name, publicId, systemId, ndata)
+
+    # EntityResolver methods
+
+    def resolveEntity(self, publicId, systemId):
+        return self._ent_handler.resolveEntity(publicId, systemId)
+
+    # XMLReader methods
+
+    def parse(self, source):
+        self._parent.setContentHandler(self)
+        self._parent.setErrorHandler(self)
+        self._parent.setEntityResolver(self)
+        self._parent.setDTDHandler(self)
+        self._parent.parse(source)
+
+    def setLocale(self, locale):
+        self._parent.setLocale(locale)
+
+    def getFeature(self, name):
+        return self._parent.getFeature(name)
+
+    def setFeature(self, name, state):
+        self._parent.setFeature(name, state)
+
+    def getProperty(self, name):
+        return self._parent.getProperty(name)
+
+    def setProperty(self, name, value):
+        self._parent.setProperty(name, value)
+
+    # XMLFilter methods
+
+    def getParent(self):
+        return self._parent
+
+    def setParent(self, parent):
+        self._parent = parent
+
+# --- Utility functions
+
+def prepare_input_source(source, base = ""):
+    """This function takes an InputSource and an optional base URL and
+    returns a fully resolved InputSource object ready for reading."""
+
+    if type(source) in _StringTypes:
+        source = xmlreader.InputSource(source)
+    elif hasattr(source, "read"):
+        f = source
+        source = xmlreader.InputSource()
+        source.setByteStream(f)
+        if hasattr(f, "name"):
+            source.setSystemId(f.name)
+
+    if source.getByteStream() is None:
+        sysid = source.getSystemId()
+        basehead = os.path.dirname(os.path.normpath(base))
+        sysidfilename = os.path.join(basehead, sysid)
+        if os.path.isfile(sysidfilename):
+            source.setSystemId(sysidfilename)
+            f = open(sysidfilename, "rb")
+        else:
+            source.setSystemId(urlparse.urljoin(base, sysid))
+            f = urllib.urlopen(source.getSystemId())
+
+        source.setByteStream(f)
+
+    return source