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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)nls_base.c 1.5 05/05/01 2000 J. Schilling */
/*
* Modifications to make the code portable Copyright (c) 2000 J. Schilling
* Thanks to Georgy Salnikov <sge@nmr.nioch.nsc.ru>
*
* Code taken from the Linux kernel.
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* linux/fs/nls.c
*
* Native language support--charsets and unicode translations.
* By Gordon Chaffee 1996, 1997
*
*/
#include <mconfig.h>
#include <stdio.h>
#include <strdefs.h>
#include <errno.h>
#include "nls.h"
static struct unls_table *tables = (struct unls_table *) NULL;
int
register_unls(struct unls_table *unls)
{
struct unls_table ** tmp = &tables;
if (!unls)
return (-EINVAL);
if (unls->unls_next)
return (-EBUSY);
while (*tmp) {
if (unls == *tmp) {
return (-EBUSY);
}
tmp = &(*tmp)->unls_next;
}
unls->unls_next = tables;
tables = unls;
return (0);
}
int
unregister_unls(struct unls_table *unls)
{
struct unls_table ** tmp = &tables;
while (*tmp) {
if (unls == *tmp) {
*tmp = unls->unls_next;
return (0);
}
tmp = &(*tmp)->unls_next;
}
return (-EINVAL);
}
struct unls_table *
find_unls(char *charset)
{
struct unls_table *unls = tables;
while (unls) {
if (strcmp(unls->unls_name, charset) == 0)
return (unls);
unls = unls->unls_next;
}
return (NULL);
}
void
list_unls()
{
struct unls_table *unls = tables;
while (unls) {
fprintf(stderr, "%s\n", unls->unls_name);
unls = unls->unls_next;
}
}
struct unls_table *
load_unls(char *charset)
{
struct unls_table *unls;
unls = find_unls(charset);
if (unls) {
return (unls);
}
return (NULL);
}
void
unload_unls(struct unls_table *nls)
{
}
static struct unls_unicode charset2uni[256] = {
/* 0x00*/
{0x00, 0x00}, {0x01, 0x00}, {0x02, 0x00}, {0x03, 0x00},
{0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x07, 0x00},
{0x08, 0x00}, {0x09, 0x00}, {0x0a, 0x00}, {0x0b, 0x00},
{0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00},
/* 0x10*/
{0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00},
{0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00},
{0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00},
{0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00},
/* 0x20*/
{0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
{0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00},
{0x28, 0x00}, {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00},
{0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x2f, 0x00},
/* 0x30*/
{0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00},
{0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00},
{0x38, 0x00}, {0x39, 0x00}, {0x3a, 0x00}, {0x3b, 0x00},
{0x3c, 0x00}, {0x3d, 0x00}, {0x3e, 0x00}, {0x3f, 0x00},
/* 0x40*/
{0x40, 0x00}, {0x41, 0x00}, {0x42, 0x00}, {0x43, 0x00},
{0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x00},
{0x48, 0x00}, {0x49, 0x00}, {0x4a, 0x00}, {0x4b, 0x00},
{0x4c, 0x00}, {0x4d, 0x00}, {0x4e, 0x00}, {0x4f, 0x00},
/* 0x50*/
{0x50, 0x00}, {0x51, 0x00}, {0x52, 0x00}, {0x53, 0x00},
{0x54, 0x00}, {0x55, 0x00}, {0x56, 0x00}, {0x57, 0x00},
{0x58, 0x00}, {0x59, 0x00}, {0x5a, 0x00}, {0x5b, 0x00},
{0x5c, 0x00}, {0x5d, 0x00}, {0x5e, 0x00}, {0x5f, 0x00},
/* 0x60*/
{0x60, 0x00}, {0x61, 0x00}, {0x62, 0x00}, {0x63, 0x00},
{0x64, 0x00}, {0x65, 0x00}, {0x66, 0x00}, {0x67, 0x00},
{0x68, 0x00}, {0x69, 0x00}, {0x6a, 0x00}, {0x6b, 0x00},
{0x6c, 0x00}, {0x6d, 0x00}, {0x6e, 0x00}, {0x6f, 0x00},
/* 0x70*/
{0x70, 0x00}, {0x71, 0x00}, {0x72, 0x00}, {0x73, 0x00},
{0x74, 0x00}, {0x75, 0x00}, {0x76, 0x00}, {0x77, 0x00},
{0x78, 0x00}, {0x79, 0x00}, {0x7a, 0x00}, {0x7b, 0x00},
{0x7c, 0x00}, {0x7d, 0x00}, {0x7e, 0x00}, {0x7f, 0x00},
/* 0x80*/
{0x80, 0x00}, {0x81, 0x00}, {0x82, 0x00}, {0x83, 0x00},
{0x84, 0x00}, {0x85, 0x00}, {0x86, 0x00}, {0x87, 0x00},
{0x88, 0x00}, {0x89, 0x00}, {0x8a, 0x00}, {0x8b, 0x00},
{0x8c, 0x00}, {0x8d, 0x00}, {0x8e, 0x00}, {0x8f, 0x00},
/* 0x90*/
{0x90, 0x00}, {0x91, 0x00}, {0x92, 0x00}, {0x93, 0x00},
{0x94, 0x00}, {0x95, 0x00}, {0x96, 0x00}, {0x97, 0x00},
{0x98, 0x00}, {0x99, 0x00}, {0x9a, 0x00}, {0x9b, 0x00},
{0x9c, 0x00}, {0x9d, 0x00}, {0x9e, 0x00}, {0x9f, 0x00},
/* 0xa0*/
{0xa0, 0x00}, {0xa1, 0x00}, {0xa2, 0x00}, {0xa3, 0x00},
{0xa4, 0x00}, {0xa5, 0x00}, {0xa6, 0x00}, {0xa7, 0x00},
{0xa8, 0x00}, {0xa9, 0x00}, {0xaa, 0x00}, {0xab, 0x00},
{0xac, 0x00}, {0xad, 0x00}, {0xae, 0x00}, {0xaf, 0x00},
/* 0xb0*/
{0xb0, 0x00}, {0xb1, 0x00}, {0xb2, 0x00}, {0xb3, 0x00},
{0xb4, 0x00}, {0xb5, 0x00}, {0xb6, 0x00}, {0xb7, 0x00},
{0xb8, 0x00}, {0xb9, 0x00}, {0xba, 0x00}, {0xbb, 0x00},
{0xbc, 0x00}, {0xbd, 0x00}, {0xbe, 0x00}, {0xbf, 0x00},
/* 0xc0*/
{0xc0, 0x00}, {0xc1, 0x00}, {0xc2, 0x00}, {0xc3, 0x00},
{0xc4, 0x00}, {0xc5, 0x00}, {0xc6, 0x00}, {0xc7, 0x00},
{0xc8, 0x00}, {0xc9, 0x00}, {0xca, 0x00}, {0xcb, 0x00},
{0xcc, 0x00}, {0xcd, 0x00}, {0xce, 0x00}, {0xcf, 0x00},
/* 0xd0*/
{0xd0, 0x00}, {0xd1, 0x00}, {0xd2, 0x00}, {0xd3, 0x00},
{0xd4, 0x00}, {0xd5, 0x00}, {0xd6, 0x00}, {0xd7, 0x00},
{0xd8, 0x00}, {0xd9, 0x00}, {0xda, 0x00}, {0xdb, 0x00},
{0xdc, 0x00}, {0xdd, 0x00}, {0xde, 0x00}, {0xdf, 0x00},
/* 0xe0*/
{0xe0, 0x00}, {0xe1, 0x00}, {0xe2, 0x00}, {0xe3, 0x00},
{0xe4, 0x00}, {0xe5, 0x00}, {0xe6, 0x00}, {0xe7, 0x00},
{0xe8, 0x00}, {0xe9, 0x00}, {0xea, 0x00}, {0xeb, 0x00},
{0xec, 0x00}, {0xed, 0x00}, {0xee, 0x00}, {0xef, 0x00},
/* 0xf0*/
{0xf0, 0x00}, {0xf1, 0x00}, {0xf2, 0x00}, {0xf3, 0x00},
{0xf4, 0x00}, {0xf5, 0x00}, {0xf6, 0x00}, {0xf7, 0x00},
{0xf8, 0x00}, {0xf9, 0x00}, {0xfa, 0x00}, {0xfb, 0x00},
{0xfc, 0x00}, {0xfd, 0x00}, {0xfe, 0x00}, {0xff, 0x00},
};
static unsigned char page00[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
};
static unsigned char *page_uni2charset[256] = {
page00
};
static struct unls_table default_table = {
"default",
page_uni2charset,
charset2uni,
NULL
};
/* Returns a simple default translation table */
struct unls_table *
load_unls_default()
{
return (&default_table);
}
|
