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libiconv

    1: /* Copyright (C) 2000-2002, 2004-2005 Free Software Foundation, Inc.
    2:    This file is part of the GNU LIBICONV Library.
    3: 
    4:    The GNU LIBICONV Library is free software; you can redistribute it
    5:    and/or modify it under the terms of the GNU Library General Public
    6:    License as published by the Free Software Foundation; either version 2
    7:    of the License, or (at your option) any later version.
    8: 
    9:    The GNU LIBICONV Library is distributed in the hope that it will be
   10:    useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Library General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Library General Public
   15:    License along with the GNU LIBICONV Library; see the file COPYING.LIB.
   16:    If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
   17:    Fifth Floor, Boston, MA 02110-1301, USA.  */
   18: 
   19: /* Create a table from Unicode to CHARSET. */
   20: 
   21: #include "config.h"
   22: 
   23: #include <stddef.h>
   24: #include <stdio.h>
   25: #include <stdlib.h>
   26: #include <string.h>
   27: #include <iconv.h>
   28: #include <errno.h>
   29: 
   30: #include "binary-io.h"
   31: 
   32: int main (int argc, char* argv[])
   33: {
   34:   const char* charset;
   35:   iconv_t cd;
   36:   int bmp_only;
   37: 
   38:   if (argc != 2) {
   39:     fprintf(stderr,"Usage: table-to charset\n");
   40:     exit(1);
   41:   }
   42:   charset = argv[1];
   43: 
   44: #if O_BINARY
   45:   SET_BINARY(fileno(stdout));
   46: #endif
   47: 
   48:   cd = iconv_open(charset,"UCS-4-INTERNAL");
   49:   if (cd == (iconv_t)(-1)) {
   50:     perror("iconv_open");
   51:     exit(1);
   52:   }
   53: 
   54:   /* When testing UTF-8, stop at 0x10000, otherwise the output file gets too
   55:      big. */
   56:   bmp_only = (strcmp(charset,"UTF-8") == 0);
   57: 
   58:   {
   59:     unsigned int i;
   60:     unsigned char buf[10];
   61:     for (i = 0; i < (bmp_only ? 0x10000 : 0x110000); i++) {
   62:       unsigned int in = i;
   63:       const char* inbuf = (const char*) &in;
   64:       size_t inbytesleft = sizeof(unsigned int);
   65:       char* outbuf = (char*)buf;
   66:       size_t outbytesleft = sizeof(buf);
   67:       size_t result;
   68:       size_t result2 = 0;
   69:       iconv(cd,NULL,NULL,NULL,NULL);
   70:       result = iconv(cd,(ICONV_CONST char**)&inbuf,&inbytesleft,&outbuf,&outbytesleft);
   71:       if (result != (size_t)(-1))
   72:         result2 = iconv(cd,NULL,NULL,&outbuf,&outbytesleft);
   73:       if (result == (size_t)(-1) || result2 == (size_t)(-1)) {
   74:         if (errno != EILSEQ) {
   75:           int saved_errno = errno;
   76:           fprintf(stderr,"0x%02X: iconv error: ",i);
   77:           errno = saved_errno;
   78:           perror("");
   79:           exit(1);
   80:         }
   81:       } else if (result == 0) /* ignore conversions with transliteration */ {
   82:         if (inbytesleft == 0 && outbytesleft < sizeof(buf)) {
   83:           unsigned int jmax = sizeof(buf) - outbytesleft;
   84:           unsigned int j;
   85:           printf("0x");
   86:           for (j = 0; j < jmax; j++)
   87:             printf("%02X",buf[j]);
   88:           printf("\t0x%04X\n",i);
   89:         } else if (inbytesleft == 0 && i >= 0xe0000 && i < 0xe0080) {
   90:           /* Language tags may silently be dropped. */
   91:         } else {
   92:           fprintf(stderr,"0x%02X: inbytes = %ld, outbytes = %ld\n",i,(long)(sizeof(unsigned int)-inbytesleft),(long)(sizeof(buf)-outbytesleft));
   93:           exit(1);
   94:         }
   95:       }
   96:     }
   97:   }
   98: 
   99:   if (iconv_close(cd) < 0) {
  100:     perror("iconv_close");
  101:     exit(1);
  102:   }
  103: 
  104:   if (ferror(stdin) || ferror(stdout) || fclose(stdout)) {
  105:     fprintf(stderr,"I/O error\n");
  106:     exit(1);
  107:   }
  108: 
  109:   exit(0);
  110: }