TKUppercaseConverter


1   /*
2    * $Header: /cvsroot/webman-cms/source/webman/com/teamkonzept/lib/TKUppercaseConverter.java,v 1.5 2000/05/22 15:01:22 careck Exp $
3    *
4    */
5   package com.teamkonzept.lib;
6   
7   import java.util.*;
8   
9   /**
10      Konvertierungsklasse fuer HTML-Text-Codierung
11  */
12  public class TKUppercaseConverter extends TKConverter {
13      public final static String   CONV_ID = "UPPERCASE";
14      public final static String   CONV_NAME = "UPPERCASE-ISO-8859_1";
15  
16      public String   getName() 
17      {
18          return CONV_NAME;
19      }
20      
21      public final static String  [] HTML_CODES = {
22  /*  0*/ null, null, null, null, null, null, null, null, null, null,
23  /* 10*/ null, null, null, null, null, null, null, null, null, null,
24  /* 20*/ null, null, null, null, null, null, null, null, null, null,
25  /* 30*/ null, null, null, null, "quot", null, null, null, "amp", null,
26  /* 40*/ null, null, null, null, null, null, null, null, null, null,
27  /* 50*/ null, null, null, null, null, null, null, null, null, null,
28  /* 60*/ "lt", null, "gt", null, null, null, null, null, null, null,
29  /* 70*/ null, null, null, null, null, null, null, null, null, null,
30  /* 80*/ null, null, null, null, null, null, null, null, null, null,
31  /* 90*/ null, null, null, null, null, null, null, "*A", "*B", "*C",
32  /*100*/ "*D", "*E", "*F", "*G", "*H", "*I", "*J", "*K", "*L", "*M",
33  /*110*/ "*N", "*O", "*P", "*Q", "*R", "*S", "*T", "*U", "*V", "*W",
34  /*120*/ "*X", "*Y", "*Z", null, null, null, null, null, null, null,
35  /*130*/ null, null, /*"quot"*/null, null, null, null, null, null, null, null,
36  /*140*/ null, null, null, null, null, /*"#39"*/null, /*"#39*/null, null, null, null,
37  /*150*/ null, null, null, null, null, null, null, null, null, null,
38  /*160*/ "nbsp", null, null, null, null, null, null, null, null, null,
39  /*170*/ null, null, null, "shy", null, null, null, null, null, null,
40  /*180*/ null, null, null, null, null, null, null, null, null, null,
41  /*190*/ null, null, "Agrave", "Aacute", "Acirc", "Atilde", "Auml", "Aring", "AElig", "Ccedil",
42  /*200*/ "Egrave", "Eacute", "Ecirc", "Euml", "Igrave", "Iacute", "Icirc", "Iuml", "ETH", "Ntilde",
43  /*210*/ "Ograve", "Oacute", "Ocirc", "Otilde", "Ouml", null, "Oslash", "Ugrave", "Uacute", "Ucirc",
44  /*220*/ "Uuml", "Yacute", "THORN", "*SS", "Agrave", "Aacute", "Acirc", "Atilde", "Auml", "Aring",
45  /*230*/ "Aelig", "Ccedil", "Egrave", "Eacute", "Ecirc", "Euml", "Igrave", "Iacute", "Icirc", "Iuml",
46  /*240*/ "ETH", "Ntilde", "Ograve", "Oacute", "Ocirc", "Otilde", "Ouml", null, "Oslash", "Ugrave",
47  /*250*/ "Uacute", "Ucirc", "Uuml", "Yacute", "THORN", "*Y"
48      };
49      
50      public final static byte AMPERCENT = (byte) '&';
51      public final static byte HASH = (byte) '#';
52      public final static byte SEMICOLON = (byte) ';';
53      public static Hashtable NAME_HASH = null;
54      
55      public int getMaxBytesPerChar() 
56      {
57          return 8;
58      }
59      
60      public int minCharSize(int byteCount) 
61      {
62          return byteCount;
63      }
64      
65      public synchronized Hashtable getNameHash()
66      {
67          if( NAME_HASH != null ) return NAME_HASH;
68          NAME_HASH = new Hashtable(38);
69          String   html;
70          for( int i=0; i<=255; i++ ) {
71              if( (html = HTML_CODES[i]) != null && html.charAt(0) != '*')
72                  NAME_HASH.put( html, new Integer  (i) );
73          }
74          return NAME_HASH;
75      }
76      
77      public int charsToBytes(char src[], byte dst[], int srcBegin, int length, int dstBegin) 
78      {
79          int lastPos = srcBegin+length;
80          int firstPos = dstBegin;
81          for( int i=srcBegin; i<lastPos; i++ ) {
82              char c = src[i];
83              byte b = (byte) c;
84              int code = (int) c;
85              String   subst = HTML_CODES[ code ];
86              if( subst == null ) {
87                  //if( c >= ' ' && c <='\u0080' ) {
88                  if( c <='\u0080' ) {
89                      dst[ dstBegin++ ] = b;
90                  }
91                  else if( c < '\u0100' ) {
92                      dst[ dstBegin++ ] = AMPERCENT;
93                      dst[ dstBegin++ ] = HASH;
94                      dst[ dstBegin++ ] = (byte) Character.forDigit( ( code / 100 ), 10 );
95                      dst[ dstBegin++ ] = (byte) Character.forDigit( ( code % 100 / 10  ), 10 );
96                      dst[ dstBegin++ ] = (byte) Character.forDigit( ( code % 10  ), 10 );
97                      dst[ dstBegin++ ] = SEMICOLON;
98                  }
99              }
100             else if (subst.length() > 0 && subst.charAt(0) == '*') {
101             
102                 int len = subst.length();
103                 subst.getBytes( 1, len, dst, dstBegin );
104                 dstBegin += len-1;
105             }
106             else {
107                 dst[ dstBegin++ ] = AMPERCENT;
108                 int len = subst.length();
109                 subst.getBytes( 0, len, dst, dstBegin );
110                 dstBegin += len;
111                 dst[ dstBegin++ ] = SEMICOLON;
112             }
113         }
114         
115         return dstBegin - firstPos;
116     }
117     
118     public int bytesToChars(byte src[], char dst[], int srcBegin, int length, int dstBegin) 
119     {
120         int lastPos = srcBegin+length;
121         int firstPos = dstBegin;
122         int i=srcBegin;
123         Hashtable nameHash = getNameHash();
124         
125         while( i<lastPos ) {
126             byte b = src[i++];
127             if( b == AMPERCENT ) {
128                 int startPos = i;
129                 while( src[i] != SEMICOLON ) i++;
130                 if( src[i] == HASH ) {
131                     String   decStr = new String  ( src, 0, startPos+1, i-startPos-1 );
132                     dst[dstBegin++] = (char) Integer.parseInt( decStr );
133                 }
134                 else {
135                     String   code = new String  ( src, 0, startPos, i-startPos );
136                     dst[dstBegin++] = 
137                         (char) ((Integer  )nameHash.get(code)).intValue();
138                 }
139                 i++;
140             }
141             else {
142                 dst[dstBegin++] = (char) b;
143             }
144         }
145         return dstBegin - firstPos;
146     }
147     
148 }
149 
150
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