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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
/*
Header file for converting iso2022-CN-EXT to cns11643 and big5
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#define MSB 0x80 /* Most significant bit */
#define MBYTE 0x8e /* multi-byte (4 byte character) */
#define PMASK 0xa0 /* plane number mask */
#define ONEBYTE 0xff /* The right most byte */
#define SI 0x0f /* shift in */
#define SO 0x0e /* shift out */
#define ESC 0x1b /* escape */
#define SS2LOW 0x4e /* SS2 escape sequence low byte */
#define SS3LOW 0x4f /* SS3 escape sequence low byte */
#define NON_ID_CHAR '_' /* non-identified character */
typedef struct _icv_state {
char Sfunc; /* Current shift function SI or SO. Also the current
state of the ISO state machine */
short SSfunc; /* Current single shift function NONE, SS2, SS3 */
short ESCstate; /* State of the ESC seq processing sub-machine. State
can be OFF, E0, E1, E2, E3, E4 */
int firstbyte; /* False if waiting for second Chinese byte */
char keepc[2]; /* For the 2-byte Chinese character code */
char savbuf[4]; /* Save Esc seq here in the ESC seq processing
sub-machine. If illegal ESC seq and if
insufficient space to output it, these are processed
before any byte from the inbuf when _icv_iconv is
called again with more output space. In state SO an
illegal ESC sequence causes _icv_iconv()
to return with EILSEQ error. See processESCseq()
to know what is an illegal ESC sequence. */
int numsav; /* The number of bytes saved in savbuf */
char SOcharset; /* The current SO designation */
char SS2charset; /* The current SS2 designation */
char SS3charset; /* The current SS3 designation */
size_t nonidcount; /* Keeps track of skipped input bytes in convertion */
int _errno; /* Internal error number */
} _iconv_st;
enum _ssfunc { NONE, SS2, SS3 };
enum _escstate { OFF, E0, E1, E2, E3, E4 };
enum _retProcESC { NEEDMORE, DONE, INVALID };
enum _truefalse { True, False };
void* iso2022_icv_open();
void iso2022_icv_close(_iconv_st*);
size_t iso2022_icv_iconv(_iconv_st*, char**, size_t*, unsigned char**, size_t*, int (*)(_iconv_st*, unsigned char**, size_t*, int));
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