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/* Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU LIBICONV Library.
The GNU LIBICONV Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
The GNU LIBICONV Library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU LIBICONV Library; see the file COPYING.LIB.
If not, write to the Free Software Foundation, Inc., 59 Temple Place -
Suite 330, Boston, MA 02111-1307, USA. */
/* Create a table from CHARSET to Unicode. */
#include "config.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <iconv.h>
#include <errno.h>
static const char* hexbuf (unsigned char buf[], unsigned int buflen)
{
static char msg[50];
switch (buflen) {
case 1: sprintf(msg,"0x%02X",buf[0]); break;
case 2: sprintf(msg,"0x%02X%02X",buf[0],buf[1]); break;
case 3: sprintf(msg,"0x%02X%02X%02X",buf[0],buf[1],buf[2]); break;
case 4: sprintf(msg,"0x%02X%02X%02X%02X",buf[0],buf[1],buf[2],buf[3]); break;
default: abort();
}
return msg;
}
static int try (iconv_t cd, unsigned char buf[], unsigned int buflen, unsigned int *out)
{
const char* inbuf = (const char*) buf;
size_t inbytesleft = buflen;
char* outbuf = (char*) out;
size_t outbytesleft = sizeof(unsigned int);
size_t result = iconv(cd,(ICONV_CONST char**)&inbuf,&inbytesleft,&outbuf,&outbytesleft);
if (result == (size_t)(-1)) {
if (errno == EILSEQ) {
return -1;
} else if (errno == EINVAL) {
return 0;
} else {
int saved_errno = errno;
fprintf(stderr,"%s: iconv error: ",hexbuf(buf,buflen));
errno = saved_errno;
perror("");
exit(1);
}
} else if (result > 0) /* ignore conversions with transliteration */ {
return -1;
} else {
if (inbytesleft != 0 || outbytesleft != 0) {
fprintf(stderr,"%s: inbytes = %ld, outbytes = %ld\n",hexbuf(buf,buflen),(long)(buflen-inbytesleft),(long)(sizeof(unsigned int)-outbytesleft));
exit(1);
}
return 1;
}
}
int main (int argc, char* argv[])
{
const char* charset;
iconv_t cd;
if (argc != 2) {
fprintf(stderr,"Usage: table-to charset\n");
exit(1);
}
charset = argv[1];
cd = iconv_open("UCS-4-INTERNAL",charset);
if (cd == (iconv_t)(-1)) {
perror("iconv_open");
exit(1);
}
{
unsigned int out;
unsigned char buf[4];
unsigned int i0, i1, i2, i3;
int result;
for (i0 = 0; i0 < 0x100; i0++) {
buf[0] = i0;
result = try(cd,buf,1,&out);
if (result < 0) {
} else if (result > 0) {
printf("0x%02X\t0x%04X\n",i0,out);
} else {
for (i1 = 0; i1 < 0x100; i1++) {
buf[1] = i1;
result = try(cd,buf,2,&out);
if (result < 0) {
} else if (result > 0) {
printf("0x%02X%02X\t0x%04X\n",i0,i1,out);
} else {
for (i2 = 0; i2 < 0x100; i2++) {
buf[2] = i2;
result = try(cd,buf,3,&out);
if (result < 0) {
} else if (result > 0) {
printf("0x%02X%02X%02X\t0x%04X\n",i0,i1,i2,out);
} else if (strcmp(charset,"UTF-8")) {
for (i3 = 0; i3 < 0x100; i3++) {
buf[3] = i3;
result = try(cd,buf,4,&out);
if (result < 0) {
} else if (result > 0) {
printf("0x%02X%02X%02X%02X\t0x%04X\n",i0,i1,i2,i3,out);
} else {
fprintf(stderr,"%s: incomplete byte sequence\n",hexbuf(buf,4));
exit(1);
}
}
}
}
}
}
}
}
}
if (iconv_close(cd) < 0) {
perror("iconv_close");
exit(1);
}
if (ferror(stdin) || ferror(stdout)) {
fprintf(stderr,"I/O error\n");
exit(1);
}
exit(0);
}