class/I18N/tools/table_to.cs

   1 /**
   2  * Create a table from Unicode to CHARSET.
   3  *
   4  * @author Bruno Haible
   5  */
   6
   7 using System; /* String, Console */
   8 using System.Text; /* Encoding */
   9
  10 public class table_to {
  11   static String toHexString1 (int i) {
  12     return new String(new char[] { "0123456789ABCDEF" [i] });
  13   }
  14   static String toHexString2 (int i) {
  15     return  toHexString1((i>>4)&0x0f)
  16            +toHexString1(i&0x0f);
  17   }
  18   static String toHexString4 (int i) {
  19     return  toHexString1((i>>12)&0x0f)
  20            +toHexString1((i>>8)&0x0f)
  21            +toHexString1((i>>4)&0x0f)
  22            +toHexString1(i&0x0f);
  23   }
  24   public static int Main (String[] args) {
  25     try {
  26       if (args.Length != 1) {
  27         Console.Error.WriteLine("Usage: mono table_to charset");
  28         return 1;
  29       }
  30       String charset = args[0];
  31       Encoding encoding;
  32       try {
  33         encoding = Encoding.GetEncoding(charset);
  34       } catch (NotSupportedException e) {
  35         Console.Error.WriteLine("no converter for "+charset);
  36         return 1;
  37       }
  38       byte[] qmark = encoding.GetBytes(new char[] { (char)0x003f });
  39       for (int i = 0; i < 0x110000; i++) {
  40         char[] inp =
  41           (i < 0x10000
  42            ? new char[] { (char)i }
  43            : new char[] { (char)(0xd800 + ((i - 0x10000) >> 10)),
  44                           (char)(0xdc00 + ((i - 0x10000) & 0x3ff)) });
  45         byte[] outp = encoding.GetBytes(inp);
  46         if (!(((outp.Length >= qmark.Length
  47                 && outp[0] == qmark[0]
  48                 && (qmark.Length < 2 || outp[1] == qmark[1])
  49                 && (qmark.Length < 3 || outp[2] == qmark[2])
  50                 && (qmark.Length < 4 || outp[3] == qmark[3]))
  51                || (outp.Length >= 1 && outp[0] == 0x3f))
  52               && !(i == 0x003f))) {
  53           Console.Out.Write("0x");
  54           for (int j = 0; j < outp.Length; j++)
  55             Console.Out.Write(toHexString2(outp[j]));
  56           Console.Out.WriteLine("\t0x" + (i<0x10000 ? toHexString4(i) : ((Int32)i).ToString("X")));
  57         }
  58       }
  59     } catch (Exception e) {
  60       Console.Error.WriteLine(e);
  61       Console.Error.WriteLine(e.StackTrace);
  62       return 1;
  63     }
  64     return 0;
  65   }
  66 }