/* * Copyright 2004 Grzegorz Grasza groz@gryf.info * * This file is part of mobber. Mobber is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by the Free  * Software Foundation; either version 2 of the License, or (at your option) any later version. * Mobber is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE.  See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License along with mobber; * if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA . */package utils;import java.io.*;import java.util.*;public class XmlReader extends InputStreamReader{	public final static int START_DOCUMENT = 0;	public final static int END_DOCUMENT = 1;	public final static int START_TAG = 2;	public final static int END_TAG = 3;	public final static int TEXT = 4;		private Stack tags;	private boolean inside_tag;	private String tagName;	private String text;	private Hashtable attributes = new Hashtable();	private int c;	private int type = START_DOCUMENT;		public XmlReader(InputStream in) throws IOException, UnsupportedEncodingException	{		super(in, "UTF-8");		tags = new Stack();		inside_tag = false;	}		public int next() throws IOException	{		c = read();		if(c <= ' ') // omit white space			while((c = read()) <= ' ' && c!=-1);		if(c==-1)		{			type = END_DOCUMENT;			return type;		}					if(c == '<' || (c == '/' && !inside_tag))		{			inside_tag = true;			// reset all			tagName = null;			text = null;			attributes.clear();						if(c == '<')				c = read();			if(c == '/')			{				type = END_TAG;				c = read();				tagName = readName('>');			}			else if(c == '?' || c == '!') // ignore xml heading & comments			{				while((c = read()) != '>');				next();			}			else			{				type = START_TAG;				tagName = readName(' ');								String attribute = "";				String value = "";				while(c == ' ')				{					c = read();					attribute = readName('=');										c = read(); // '''					c = read();					value = readText('\'');					c = read();					attributes.put(attribute, value);				}				if(c != '/')					inside_tag = false;			}		}		else if(c == '>' && inside_tag) // last tag ended		{			type = END_TAG;			inside_tag = false;		}		else		{			tagName = null;			attributes.clear();						type = TEXT;			text = readText('<');		}				return type;	}		public int getType()	{		return type;	}		public String getName()	{		return tagName;	}		public String getAttribute(String name)	{		return (String)attributes.get(name);	}		public Enumeration getAttributes()	{		return attributes.keys();	}		public String getText()	{		return text;	}		private String readText(int end) throws IOException	{		StringBuffer output = new StringBuffer("");		while(c != end)		{			if(c == '&')			{				c = read();				switch(c)				{					case 'l': output.append('<');						break;					case 'g': output.append('>');						break;					case 'a':						if(read()=='m')							output.append('&');						else							output.append('\'');						break;					case 'q': output.append('"');						break;					case 'n': output.append(' ');						break;					default: output.append('?');				}								while((c = read()) != ';');			}			else if(c == '\\')			{				if((c = read()) == '<')					break;				else					output.append((char) c);			}			else				output.append((char) c);			c = read();		}		//while((c = read()) != end);		return output.toString();	}	private String readName(int end) throws IOException	{		StringBuffer output = new StringBuffer("");		do output.append((char) c);		while((c = read()) != end && c != '>' && c != '/');		return output.toString();	}};