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- /* Copyright (C) 2000 Free Software Foundation, Inc.
- This file is part of the GNU ICONV Library.
-
- The GNU ICONV 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 ICONV 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 ICONV 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 <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,&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);
- }
-