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Diffstat (limited to 'include/ldap_pvt_uc.h')
| -rw-r--r-- | include/ldap_pvt_uc.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/include/ldap_pvt_uc.h b/include/ldap_pvt_uc.h new file mode 100644 index 0000000..1449995 --- /dev/null +++ b/include/ldap_pvt_uc.h @@ -0,0 +1,163 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1998-2021 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +/* + * ldap_pvt_uc.h - Header for Unicode functions. + * These are meant to be used by the OpenLDAP distribution only. + * These should be named ldap_pvt_....() + */ + +#ifndef _LDAP_PVT_UC_H +#define _LDAP_PVT_UC_H 1 + +#include <lber.h> /* get ber_slen_t */ + +#include <ac/bytes.h> +#include "../libraries/liblunicode/ucdata/ucdata.h" + +LDAP_BEGIN_DECL + +/* + * UTF-8 (in utf-8.c) + */ + +/* UCDATA uses UCS-2 passed in a 4 byte unsigned int */ +typedef ac_uint4 ldap_unicode_t; + +/* Convert a string with csize octets per character to UTF-8 */ +LDAP_F( int ) ldap_ucs_to_utf8s LDAP_P(( + struct berval *ucs, int csize, struct berval *utf8s )); + + +/* returns the number of bytes in the UTF-8 string */ +LDAP_F (ber_len_t) ldap_utf8_bytes( const char * ); +/* returns the number of UTF-8 characters in the string */ +LDAP_F (ber_len_t) ldap_utf8_chars( const char * ); +/* returns the length (in bytes) of the UTF-8 character */ +LDAP_F (int) ldap_utf8_offset( const char * ); +/* returns the length (in bytes) indicated by the UTF-8 character */ +LDAP_F (int) ldap_utf8_charlen( const char * ); + +/* returns the length (in bytes) indicated by the UTF-8 character + * also checks that shortest possible encoding was used + */ +LDAP_F (int) ldap_utf8_charlen2( const char * ); + +/* copies a UTF-8 character and returning number of bytes copied */ +LDAP_F (int) ldap_utf8_copy( char *, const char *); + +/* returns pointer of next UTF-8 character in string */ +LDAP_F (char*) ldap_utf8_next( const char * ); +/* returns pointer of previous UTF-8 character in string */ +LDAP_F (char*) ldap_utf8_prev( const char * ); + +/* primitive ctype routines -- not aware of non-ascii characters */ +LDAP_F (int) ldap_utf8_isascii( const char * ); +LDAP_F (int) ldap_utf8_isalpha( const char * ); +LDAP_F (int) ldap_utf8_isalnum( const char * ); +LDAP_F (int) ldap_utf8_isdigit( const char * ); +LDAP_F (int) ldap_utf8_isxdigit( const char * ); +LDAP_F (int) ldap_utf8_isspace( const char * ); + +/* span characters not in set, return bytes spanned */ +LDAP_F (ber_len_t) ldap_utf8_strcspn( const char* str, const char *set); +/* span characters in set, return bytes spanned */ +LDAP_F (ber_len_t) ldap_utf8_strspn( const char* str, const char *set); +/* return first occurance of character in string */ +LDAP_F (char *) ldap_utf8_strchr( const char* str, const char *chr); +/* return first character of set in string */ +LDAP_F (char *) ldap_utf8_strpbrk( const char* str, const char *set); +/* reentrant tokenizer */ +LDAP_F (char*) ldap_utf8_strtok( char* sp, const char* sep, char **last); + +/* Optimizations */ +LDAP_V (const char) ldap_utf8_lentab[128]; +LDAP_V (const char) ldap_utf8_mintab[32]; + +#define LDAP_UTF8_ISASCII(p) ( !(*(const unsigned char *)(p) & 0x80 ) ) +#define LDAP_UTF8_CHARLEN(p) ( LDAP_UTF8_ISASCII(p) \ + ? 1 : ldap_utf8_lentab[*(const unsigned char *)(p) ^ 0x80] ) + +/* This is like CHARLEN but additionally validates to make sure + * the char used the shortest possible encoding. + * 'l' is used to temporarily hold the result of CHARLEN. + */ +#define LDAP_UTF8_CHARLEN2(p, l) ( ( ( l = LDAP_UTF8_CHARLEN( p )) < 3 || \ + ( ldap_utf8_mintab[*(const unsigned char *)(p) & 0x1f] & (p)[1] ) ) ? \ + l : 0 ) + +#define LDAP_UTF8_OFFSET(p) ( LDAP_UTF8_ISASCII(p) \ + ? 1 : ldap_utf8_offset((p)) ) + +#define LDAP_UTF8_COPY(d,s) ( LDAP_UTF8_ISASCII(s) \ + ? (*(d) = *(s), 1) : ldap_utf8_copy((d),(s)) ) + +#define LDAP_UTF8_NEXT(p) ( LDAP_UTF8_ISASCII(p) \ + ? (char *)(p)+1 : ldap_utf8_next((p)) ) + +#define LDAP_UTF8_INCR(p) ((p) = LDAP_UTF8_NEXT(p)) + +/* For symmetry */ +#define LDAP_UTF8_PREV(p) (ldap_utf8_prev((p))) +#define LDAP_UTF8_DECR(p) ((p)=LDAP_UTF8_PREV((p))) + + +/* these probably should be renamed */ +LDAP_LUNICODE_F(int) ucstrncmp( + const ldap_unicode_t *, + const ldap_unicode_t *, + ber_len_t ); + +LDAP_LUNICODE_F(int) ucstrncasecmp( + const ldap_unicode_t *, + const ldap_unicode_t *, + ber_len_t ); + +LDAP_LUNICODE_F(ldap_unicode_t *) ucstrnchr( + const ldap_unicode_t *, + ber_len_t, + ldap_unicode_t ); + +LDAP_LUNICODE_F(ldap_unicode_t *) ucstrncasechr( + const ldap_unicode_t *, + ber_len_t, + ldap_unicode_t ); + +LDAP_LUNICODE_F(void) ucstr2upper( + ldap_unicode_t *, + ber_len_t ); + +#define LDAP_UTF8_NOCASEFOLD 0x0U +#define LDAP_UTF8_CASEFOLD 0x1U +#define LDAP_UTF8_ARG1NFC 0x2U +#define LDAP_UTF8_ARG2NFC 0x4U +#define LDAP_UTF8_APPROX 0x8U + +LDAP_LUNICODE_F(struct berval *) UTF8bvnormalize( + struct berval *, + struct berval *, + unsigned, + void *memctx ); + +LDAP_LUNICODE_F(int) UTF8bvnormcmp( + struct berval *, + struct berval *, + unsigned, + void *memctx ); + +LDAP_END_DECL + +#endif + |