localedata/show-ucs-data.c

   1 #include <ctype.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5
   6 int
   7 main (int argc, char *argv[])
   8 {
   9   int n;
  10   char *line = NULL;
  11   size_t len = 0;
  12
  13   if (argc == 1)
  14     {
  15       static char *new_argv[] = { NULL, (char *) "/dev/stdin", NULL };
  16       argv = new_argv;
  17       argc = 2;
  18     }
  19
  20   for (n = 1; n < argc; ++n)
  21     {
  22       FILE *fp = fopen (argv[n], "r");
  23       if (fp == NULL)
  24         continue;
  25
  26       while (! feof (fp))
  27         {
  28           ssize_t cnt = getline (&line, &len, fp);
  29           char *runp;
  30           if (cnt <= 0)
  31             break;
  32
  33           runp = line;
  34           do
  35             {
  36               if (runp[0] == '<' && runp[1] == 'U' && isxdigit (runp[2])
  37                   && isxdigit (runp[3]) && isxdigit (runp[4])
  38                   && isxdigit (runp[5]) && runp[6] == '>')
  39                 {
  40                   unsigned int val = strtoul (runp + 2, NULL, 16);
  41
  42                   //putchar ('<');
  43                   if (val < 128)
  44                     putchar (val);
  45                   else if (val < 0x800)
  46                     {
  47                       putchar (0xc0 | (val >> 6));
  48                       putchar (0x80 | (val & 0x3f));
  49                     }
  50                   else
  51                     {
  52                       putchar (0xe0 | (val >> 12));
  53                       putchar (0x80 | ((val >> 6) & 0x3f));
  54                       putchar (0x80 | (val & 0x3f));
  55                     }
  56                   //putchar ('>');
  57                   runp += 7;
  58                 }
  59               else
  60                 putchar (*runp++);
  61             }
  62           while (runp < &line[cnt]);
  63         }
  64
  65       fclose (fp);
  66     }
  67
  68   return 0;
  69 }