PC Online 1997 May/PCO_5_97.ISO/FilesBBS/OS2/CSIME.ARJ/CSIME.ZIP/csime/mug/util/HTMLStreamTokenizer.class

Java Class File | 1997-02-09 | 3.5 KB | 179 lines

package mug.util;

import java.io.IOException;
import java.io.InputStream;
import java.io.StreamTokenizer;
import java.util.Hashtable;

public class HTMLStreamTokenizer {
   public static final int EOF = 0;
   public static final int TAG = 1;
   public static final int TEXT = 2;
   private int _type;
   private String _value;
   private Hashtable _params;
   private boolean _pushedBack = false;
   private StreamTokenizer _st;

   public HTMLStreamTokenizer(InputStream var1) {
      this._st = new StreamTokenizer(var1);
      this._st.resetSyntax();
      this._st.whitespaceChars(0, 32);
      this._st.wordChars(33, 33);
      this._st.wordChars(35, 59);
      this._st.wordChars(63, 255);
      this._st.quoteChar(34);
   }

   public int getType() {
      return this._type;
   }

   public String getValue() {
      return this._value;
   }

   public Hashtable getParams() {
      return this._params;
   }

   public String getParamValue(String var1) {
      String var2 = var1.toUpperCase();
      if (this._params.containsKey(var2)) {
         return (String)this._params.get(var2);
      } else {
         String var3 = var1.toLowerCase();
         return this._params.containsKey(var3) ? (String)this._params.get(var3) : null;
      }
   }

   public boolean containsParamName(String var1) {
      String var2 = var1.toUpperCase();
      String var3 = var1.toLowerCase();
      return this._params.containsKey(var2) || this._params.containsKey(var3);
   }

   public int nextToken() throws IOException {
      if (this._pushedBack) {
         this._pushedBack = false;
         return this._type;
      } else {
         try {
            String var1;
            if ((var1 = this.nextStreamToken()) == null) {
               return 0;
            }

            if (var1.equals("<")) {
               var1 = this.nextStreamToken();
               if (var1.startsWith("!")) {
                  while((var1 = this.nextStreamToken()) != null && !var1.equals(">")) {
                  }

                  return this.nextToken();
               }

               this._type = 1;
               this._value = var1;
               this._params = new Hashtable();

               while((var1 = this.nextStreamToken()) != null && !var1.equals(">")) {
                  String var2 = var1;
                  var1 = this.nextStreamToken();
                  if (var1.equals("=")) {
                     String var3 = this.nextStreamToken();
                     this._params.put(var2, var3);
                  } else {
                     this._params.put(var2, var2);
                     this._st.pushBack();
                  }
               }
            } else {
               this._type = 2;
               StringBuffer var10 = new StringBuffer(var1);

               while((var1 = this.nextStreamToken()) != null) {
                  if (var1.equals("<")) {
                     this._st.pushBack();
                     break;
                  }

                  var10.append(" " + var1);
               }

               this._value = var10.toString();
            }
         } catch (IOException var4) {
            throw (IOException)((Throwable)var4).fillInStackTrace();
         }

         return this._type;
      }
   }

   public void pushBack() {
      this._pushedBack = true;
   }

   public boolean nextTag() {
      return this.nextTag((String)null);
   }

   public boolean nextTag(String var1) {
      int var2;
      try {
         while((var2 = this.nextToken()) != 0) {
            if (var2 == 1 && (var1 == null || this._value.equalsIgnoreCase(var1))) {
               return true;
            }
         }
      } catch (IOException var3) {
         System.out.println("Caught an exception: " + ((Throwable)var3).getMessage());
         ((Throwable)var3).printStackTrace();
      }

      return false;
   }

   public boolean compareTag(String var1) {
      return this._type == 1 && this._value.equalsIgnoreCase(var1);
   }

   public boolean nextText() {
      int var1;
      try {
         while((var1 = this.nextToken()) != 0) {
            if (var1 == 2) {
               return true;
            }
         }
      } catch (IOException var2) {
         System.out.println("Caught an exception: " + ((Throwable)var2).getMessage());
         ((Throwable)var2).printStackTrace();
      }

      return false;
   }

   private String nextStreamToken() throws IOException {
      String var1 = null;

      try {
         int var2 = this._st.nextToken();
         switch (var2) {
            case -3:
            case 34:
               var1 = this._st.sval;
            case -1:
               break;
            default:
               var1 = String.valueOf((char)var2);
         }

         return var1;
      } catch (IOException var3) {
         throw (IOException)((Throwable)var3).fillInStackTrace();
      }
   }
}