Esempio n. 1
0
        public virtual void parse(Reader @in, ContentHandler handler)
        {
            StringBuilder buffer = new StringBuilder();

            bool isInsideTag = false;
            bool isStartTag  = true;

            int lastChar = -1;
            int c;

            while ((c = @in.read()) != -1)
            {
                if ('<' == c)
                {
                    if (isInsideTag)
                    {
                        throw new InvalidFormatException("Did not expect < char!");
                    }

                    if (buffer.ToString().Trim().Length > 0)
                    {
                        handler.characters(buffer.ToString().Trim());
                    }

                    buffer.Length = 0;

                    isInsideTag = true;
                    isStartTag  = true;
                }

                buffer.appendCodePoint(c);

                if ('/' == c && lastChar == '<')
                {
                    isStartTag = false;
                }

                if ('>' == c)
                {
                    if (!isInsideTag)
                    {
                        throw new InvalidFormatException("Did not expect > char!");
                    }

                    if (isStartTag)
                    {
                        handler.startElement(extractTagName(buffer), getAttributes(buffer));
                    }
                    else
                    {
                        handler.endElement(extractTagName(buffer));
                    }

                    buffer.Length = 0;

                    isInsideTag = false;
                }

                lastChar = c;
            }

            if (isInsideTag)
            {
                throw new InvalidFormatException("Did not find matching > char!");
            }
        }
Esempio n. 2
0
        public void parse(string url)
        {
            int buflen = 500;

            char[]            buffer       = new char[buflen];
            Stack             nsstack      = new Stack();
            Locator           locator      = new Locator();
            SAXParseException saxException = new SAXParseException();
            Attributes        atts;
            XmlTextReader     reader = null;

            try {
                reader = new XmlTextReader(url);
                object nsuri = reader.NameTable.Add("http://www.w3.org/2000/xmlns/");
                Handler.startDocument();
                while (reader.Read())
                {
                    int    len;
                    string prefix;
                    locator.LineNumber   = reader.LineNumber;
                    locator.ColumnNumber = reader.LinePosition;
                    Handler.setDocumentLocator(locator);
                    switch (reader.NodeType)
                    {
                    case XmlNodeType.Element:
                        nsstack.Push(null);                                //marker
                        atts = new Attributes();
                        while (reader.MoveToNextAttribute())
                        {
                            if (reader.NamespaceURI.Equals(nsuri))
                            {
                                prefix = "";
                                if (reader.Prefix == "xmlns")
                                {
                                    prefix = reader.LocalName;
                                }
                                nsstack.Push(prefix);
                                Handler.startPrefixMapping(prefix, reader.Value);
                            }
                            else
                            {
                                SaxAttribute newAtt = new SaxAttribute();
                                newAtt.Name         = reader.Name;
                                newAtt.NamespaceURI = reader.NamespaceURI;
                                newAtt.Value        = reader.Value;
                                atts.attArray.Add(newAtt);
                            }
                        }
                        reader.MoveToElement();
                        Handler.startElement(reader.NamespaceURI,
                                             reader.LocalName, reader.Name, atts.TrimArray());
                        if (reader.IsEmptyElement)
                        {
                            Handler.endElement(reader.NamespaceURI,
                                               reader.LocalName, reader.Name);
                        }
                        break;

                    case XmlNodeType.EndElement:
                        Handler.endElement(reader.NamespaceURI,
                                           reader.LocalName, reader.Name);
                        prefix = (string)nsstack.Pop();
                        while (prefix != null)
                        {
                            Handler.endPrefixMapping(prefix);
                            prefix = (string)nsstack.Pop();
                        }
                        break;

                    case XmlNodeType.Text:
                        while ((len = reader.ReadChars(buffer, 0, buflen)) > 0)
                        {
                            Handler.characters(buffer, 0, len);
                        }
                        //After read your are automatically put on the next tag so you
                        //have to call the proper case from here or it won't work correctly.
                        if (reader.NodeType == XmlNodeType.Element)
                        {
                            goto case XmlNodeType.Element;
                        }
                        if (reader.NodeType == XmlNodeType.EndElement)
                        {
                            goto case XmlNodeType.EndElement;
                        }
                        break;

                    case XmlNodeType.ProcessingInstruction:
                        Handler.processingInstruction(reader.Name, reader.Value);
                        break;

                    case XmlNodeType.Whitespace:
                        char[] whiteSpace = reader.Value.ToCharArray();
                        Handler.ignorableWhitespace(whiteSpace, 0, 1);
                        break;

                    case XmlNodeType.Entity:
                        Handler.skippedEntity(reader.Name);
                        break;
                    }
                }
                Handler.endDocument();
            }             //try
            catch (Exception exception) {
                saxException.LineNumber = reader.LineNumber.ToString();
                saxException.SystemID   = "";
                saxException.Message    = exception.GetBaseException().ToString();
                errorHandler.error(saxException);
            } finally {
                if (reader.ReadState != ReadState.Closed)
                {
                    reader.Close();
                }
            }
        }