1 /* Copyright (C) 2000-2002 Free Software Foundation, Inc.
2 This file is part of the GNU LIBICONV Library.
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.
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.
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., 59 Temple Place -
17 Suite 330, Boston, MA 02111-1307, USA. */
19 /* Create a table from CHARSET to Unicode. */
30 /* If nonzero, ignore conversions outside Unicode plane 0. */
33 static const char* hexbuf (unsigned char buf[], unsigned int buflen)
37 case 1: sprintf(msg,"0x%02X",buf[0]); break;
38 case 2: sprintf(msg,"0x%02X%02X",buf[0],buf[1]); break;
39 case 3: sprintf(msg,"0x%02X%02X%02X",buf[0],buf[1],buf[2]); break;
40 case 4: sprintf(msg,"0x%02X%02X%02X%02X",buf[0],buf[1],buf[2],buf[3]); break;
46 static int try (iconv_t cd, unsigned char buf[], unsigned int buflen, unsigned int* out)
48 const char* inbuf = (const char*) buf;
49 size_t inbytesleft = buflen;
50 char* outbuf = (char*) out;
51 size_t outbytesleft = 3*sizeof(unsigned int);
53 iconv(cd,NULL,NULL,NULL,NULL);
54 result = iconv(cd,(ICONV_CONST char**)&inbuf,&inbytesleft,&outbuf,&outbytesleft);
55 if (result != (size_t)(-1))
56 result = iconv(cd,NULL,NULL,&outbuf,&outbytesleft);
57 if (result == (size_t)(-1)) {
58 if (errno == EILSEQ) {
60 } else if (errno == EINVAL) {
63 int saved_errno = errno;
64 fprintf(stderr,"%s: iconv error: ",hexbuf(buf,buflen));
69 } else if (result > 0) /* ignore conversions with transliteration */ {
72 if (inbytesleft != 0) {
73 fprintf(stderr,"%s: inbytes = %ld, outbytes = %ld\n",hexbuf(buf,buflen),(long)(buflen-inbytesleft),(long)(3*sizeof(unsigned int)-outbytesleft));
76 return (3*sizeof(unsigned int)-outbytesleft)/sizeof(unsigned int);
80 /* Returns the out[] buffer as a Unicode value, formatted as 0x%04X. */
81 static const char* ucs4_decode (const unsigned int* out, unsigned int outlen)
83 static char hexbuf[21];
88 sprintf (p, "0x%04X", out[0]);
89 out += 1; outlen -= 1;
90 if (bmp_only && strlen(p) > 6)
97 int main (int argc, char* argv[])
104 fprintf(stderr,"Usage: table-from charset\n");
109 cd = iconv_open("UCS-4-INTERNAL",charset);
110 if (cd == (iconv_t)(-1)) {
111 perror("iconv_open");
115 /* When testing UTF-8 or GB18030, stop at 0x10000, otherwise the output
116 file gets too big. */
117 bmp_only = (strcmp(charset,"UTF-8") == 0 || strcmp(charset,"GB18030") == 0);
118 search_depth = (strcmp(charset,"UTF-8") == 0 ? 3 : 4);
122 unsigned char buf[4];
123 unsigned int i0, i1, i2, i3;
125 for (i0 = 0; i0 < 0x100; i0++) {
127 result = try(cd,buf,1,out);
129 } else if (result > 0) {
130 const char* unicode = ucs4_decode(out,result);
132 printf("0x%02X\t%s\n",i0,unicode);
134 for (i1 = 0; i1 < 0x100; i1++) {
136 result = try(cd,buf,2,out);
138 } else if (result > 0) {
139 const char* unicode = ucs4_decode(out,result);
141 printf("0x%02X%02X\t%s\n",i0,i1,unicode);
143 for (i2 = 0; i2 < 0x100; i2++) {
145 result = try(cd,buf,3,out);
147 } else if (result > 0) {
148 const char* unicode = ucs4_decode(out,result);
150 printf("0x%02X%02X%02X\t%s\n",i0,i1,i2,unicode);
151 } else if (search_depth > 3) {
152 for (i3 = 0; i3 < 0x100; i3++) {
154 result = try(cd,buf,4,out);
156 } else if (result > 0) {
157 const char* unicode = ucs4_decode(out,result);
159 printf("0x%02X%02X%02X%02X\t%s\n",i0,i1,i2,i3,unicode);
161 fprintf(stderr,"%s: incomplete byte sequence\n",hexbuf(buf,4));
173 if (iconv_close(cd) < 0) {
174 perror("iconv_close");
178 if (ferror(stdin) || ferror(stdout)) {
179 fprintf(stderr,"I/O error\n");