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/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _UTF8String_H_
#define _UTF8String_H_
#include <OCTET_STRING.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef OCTET_STRING_t UTF8String_t; /* Implemented via OCTET STRING */
extern asn_TYPE_descriptor_t asn_DEF_UTF8String;
asn_struct_print_f UTF8String_print;
asn_constr_check_f UTF8String_constraint;
/*
* Returns length of the given UTF-8 string in characters,
* or a negative error code:
* -1: UTF-8 sequence truncated
* -2: Illegal UTF-8 sequence start
* -3: Continuation expectation failed
* -4: Not minimal length encoding
* -5: Invalid arguments
*/
ssize_t UTF8String_length(const UTF8String_t *st);
/*
* Convert the UTF-8 string into a sequence of wide characters.
* Returns the number of characters necessary.
* Returned value might be greater than dstlen.
* In case of conversion error, 0 is returned.
*
* If st points to a valid UTF-8 string, calling
* UTF8String_to_wcs(st, 0, 0);
* is equivalent to
* UTF8String_length(const UTF8String_t *st);
*/
size_t UTF8String_to_wcs(const UTF8String_t *st, uint32_t *dst, size_t dstlen);
#ifdef __cplusplus
}
#endif
#endif /* _UTF8String_H_ */
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