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   1 /* Parser_Test.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39
  40 package test.gnu.javax.swing.text.html.parser;
  41
  42 import java.io.StringReader;
  43
  44 import java.util.Enumeration;
  45 import java.util.Iterator;
  46 import java.util.TreeSet;
  47
  48 import javax.swing.text.AttributeSet;
  49 import javax.swing.text.MutableAttributeSet;
  50 import javax.swing.text.SimpleAttributeSet;
  51 import javax.swing.text.html.HTML;
  52 import javax.swing.text.html.HTMLEditorKit;
  53 import javax.swing.text.html.HTMLEditorKit.ParserCallback;
  54 import javax.swing.text.html.parser.ParserDelegator;
  55 import javax.swing.text.html.parser.TagElement;
  56
  57 /**
  58  * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  59  */
  60 public class Parser_Test
  61   extends HTMLEditorKit.ParserCallback
  62 {
  63   public boolean hideImplied = true;
  64   protected StringBuffer out = new StringBuffer();
  65   AttributeSet atts = new SimpleAttributeSet();
  66
  67   public void generate(String x, String comment)
  68                 throws Exception
  69   {
  70     String prolog = "<html><head></head><body>";
  71     String epilog = "</body></html>";
  72     String html = x; // prolog+x+epilog;
  73     System.out.println("// Test " + comment + ".");
  74     System.out.println("v.verify(\"" + html + "\",\n  \"" + verify(html, null) +
  75                        "\");"
  76                       );
  77   }
  78
  79   public void handleComment(char[] parm1, int position)
  80   {
  81     out.append("{" + new String(parm1) + "}");
  82   }
  83
  84   public void handleEndTag(HTML.Tag tag, int position)
  85   {
  86     out.append("</" + tag + ">");
  87   }
  88
  89   public void handleSimpleTag(HTML.Tag tag, MutableAttributeSet attributes,
  90                               int position
  91                              )
  92   {
  93     if (tag.toString().equals("#pcdata"))
  94       return;
  95     out.append("<" + tag);
  96     dumpAttributes(attributes);
  97     out.append("/>");
  98   }
  99
 100   public void handleStartTag(HTML.Tag tag, MutableAttributeSet attributes,
 101                              int position
 102                             )
 103   {
 104     out.append("<" + tag);
 105     dumpAttributes(attributes);
 106     out.append('>');
 107   }
 108
 109   public void handleText(char[] chars, int position)
 110   {
 111     out.append("'" + new String(chars) + "'");
 112   }
 113
 114   public String verify(String html, String trace)
 115                 throws Exception
 116   {
 117     out.setLength(0);
 118
 119     HTMLEditorKit.ParserCallback callback = this;
 120     ParserDelegator delegator = new ParserDelegator();
 121     delegator.parse(new StringReader(html), callback, true);
 122
 123     String ou = out.toString();
 124     if (trace != null)
 125       {
 126         if (!ou.equals(trace))
 127           {
 128             System.err.println("Unable to parse '" + html + "':");
 129             System.err.println("    expected: '" + trace + "',");
 130             System.out.println("    returned: '" + ou + "'.");
 131             throw new Exception("'" + html + "' -> '" + ou + "' expected '" +
 132                                 trace + "'"
 133                                );
 134           }
 135       }
 136     return ou;
 137   }
 138
 139   protected void dumpAttributes(AttributeSet atts)
 140   {
 141     Enumeration enum = atts.getAttributeNames();
 142
 143     // Sort them to ensure the same order every time:
 144     TreeSet t = new TreeSet();
 145     while (enum.hasMoreElements())
 146       t.add(enum.nextElement().toString());
 147
 148     Iterator iter = t.iterator();
 149
 150     while (iter.hasNext())
 151       {
 152         String a = iter.next().toString();
 153
 154         if (hideImplied)
 155           if (a.equals("_implied_"))
 156             continue;
 157
 158         String v = atts.getAttribute(a).toString();
 159         out.append(" " + a + "='" + v + "'");
 160       }
 161   }
 162 }