// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright ( C ) 2003 - 2014 , International Business Machines
* Corporation and others . All Rights Reserved .
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* file name : usprep . h
* encoding : UTF - 8
* tab size : 8 ( not used )
* indentation : 4
*
* created on : 2003 jul2
* created by : Ram Viswanadha
*/
#ifndef __USPREP_H__
#define __USPREP_H__
/**
* \ file
* \ brief C API : Implements the StringPrep algorithm .
*/
#include "unicode/utypes.h"
#if U_SHOW_CPLUSPLUS_API
#include "unicode/localpointer.h"
#endif // U_SHOW_CPLUSPLUS_API
/**
*
* StringPrep API implements the StingPrep framework as described by RFC 3454 .
* StringPrep prepares Unicode strings for use in network protocols .
* Profiles of StingPrep are set of rules and data according to with the
* Unicode Strings are prepared . Each profiles contains tables which describe
* how a code point should be treated . The tables are broadly classified into
* < ul >
* < li > Unassigned Table : Contains code points that are unassigned
* in the Unicode Version supported by StringPrep . Currently
* RFC 3454 supports Unicode 3 . 2 . < / li >
* < li > Prohibited Table : Contains code points that are prohibited from
* the output of the StringPrep processing function . < / li >
* < li > Mapping Table : Contains code points that are deleted from the output or case mapped . < / li >
* < / ul >
*
* The procedure for preparing Unicode strings :
* < ol >
* < li > Map : For each character in the input , check if it has a mapping
* and , if so , replace it with its mapping . < / li >
* < li > Normalize : Possibly normalize the result of step 1 using Unicode
* normalization . < / li >
* < li > Prohibit : Check for any characters that are not allowed in the
* output . If any are found , return an error . < / li >
* < li > Check bidi : Possibly check for right - to - left characters , and if
* any are found , make sure that the whole string satisfies the
* requirements for bidirectional strings . If the string does not
* satisfy the requirements for bidirectional strings , return an
* error . < / li >
* < / ol >
* @ author Ram Viswanadha
*/
#if !UCONFIG_NO_IDNA
#include "unicode/parseerr.h"
/**
* The StringPrep profile
* @ stable ICU 2 . 8
*/
typedef struct UStringPrepProfile UStringPrepProfile;
/**
* Option to prohibit processing of unassigned code points in the input
*
* @ see usprep_prepare
* @ stable ICU 2 . 8
*/
#define USPREP_DEFAULT
0 x0000
/**
* Option to allow processing of unassigned code points in the input
*
* @ see usprep_prepare
* @ stable ICU 2 . 8
*/
#define USPREP_ALLOW_UNASSIGNED
0 x0001
/**
* enums for the standard stringprep profile types
* supported by usprep_openByType .
* @ see usprep_openByType
* @ stable ICU 4 . 2
*/
typedef enum UStringPrepProfileType {
/**
* RFC3491 Nameprep
* @ stable ICU 4 . 2
*/
USPREP_RFC3491_NAMEPREP,
/**
* RFC3530 nfs4_cs_prep
* @ stable ICU 4 . 2
*/
USPREP_RFC3530_NFS4_CS_PREP,
/**
* RFC3530 nfs4_cs_prep with case insensitive option
* @ stable ICU 4 . 2
*/
USPREP_RFC3530_NFS4_CS_PREP_CI,
/**
* RFC3530 nfs4_cis_prep
* @ stable ICU 4 . 2
*/
USPREP_RFC3530_NFS4_CIS_PREP,
/**
* RFC3530 nfs4_mixed_prep for prefix
* @ stable ICU 4 . 2
*/
USPREP_RFC3530_NFS4_MIXED_PREP_PREFIX,
/**
* RFC3530 nfs4_mixed_prep for suffix
* @ stable ICU 4 . 2
*/
USPREP_RFC3530_NFS4_MIXED_PREP_SUFFIX,
/**
* RFC3722 iSCSI
* @ stable ICU 4 . 2
*/
USPREP_RFC3722_ISCSI,
/**
* RFC3920 XMPP Nodeprep
* @ stable ICU 4 . 2
*/
USPREP_RFC3920_NODEPREP,
/**
* RFC3920 XMPP Resourceprep
* @ stable ICU 4 . 2
*/
USPREP_RFC3920_RESOURCEPREP,
/**
* RFC4011 Policy MIB Stringprep
* @ stable ICU 4 . 2
*/
USPREP_RFC4011_MIB,
/**
* RFC4013 SASLprep
* @ stable ICU 4 . 2
*/
USPREP_RFC4013_SASLPREP,
/**
* RFC4505 trace
* @ stable ICU 4 . 2
*/
USPREP_RFC4505_TRACE,
/**
* RFC4518 LDAP
* @ stable ICU 4 . 2
*/
USPREP_RFC4518_LDAP,
/**
* RFC4518 LDAP for case ignore , numeric and stored prefix
* matching rules
* @ stable ICU 4 . 2
*/
USPREP_RFC4518_LDAP_CI
} UStringPrepProfileType;
/**
* Creates a StringPrep profile from the data file .
*
* @ param path string containing the full path pointing to the directory
* where the profile reside followed by the package name
* e . g . " / usr / resource / my_app / profiles / mydata " on a Unix system .
* if NULL , ICU default data files will be used .
* @ param fileName name of the profile file to be opened
* @ param status ICU error code in / out parameter . Must not be NULL .
* Must fulfill U_SUCCESS before the function call .
* @ return Pointer to UStringPrepProfile that is opened . Should be closed by
* calling usprep_close ( )
* @ see usprep_close ( )
* @ stable ICU 2 . 8
*/
U_CAPI UStringPrepProfile* U_EXPORT2
usprep_open(
const char* path,
const char* fileName,
UErrorCode* status);
/**
* Creates a StringPrep profile for the specified profile type .
*
* @ param type The profile type
* @ param status ICU error code in / out parameter . Must not be NULL .
* Must fulfill U_SUCCESS before the function call .
* @ return Pointer to UStringPrepProfile that is opened . Should be closed by
* calling usprep_close ( )
* @ see usprep_close ( )
* @ stable ICU 4 . 2
*/
U_CAPI UStringPrepProfile* U_EXPORT2
usprep_openByType(UStringPrepProfileType type,
UErrorCode* status);
/**
* Closes the profile
* @ param profile The profile to close
* @ stable ICU 2 . 8
*/
U_CAPI
void U_EXPORT2
usprep_close(UStringPrepProfile* profile);
#if U_SHOW_CPLUSPLUS_API
U_NAMESPACE_BEGIN
/**
* \ class LocalUStringPrepProfilePointer
* " Smart pointer " class , closes a UStringPrepProfile via usprep_close ( ) .
* For most methods see the LocalPointerBase base class .
*
* @ see LocalPointerBase
* @ see LocalPointer
* @ stable ICU 4 . 4
*/
U_DEFINE_LOCAL_OPEN_POINTER(LocalUStringPrepProfilePointer, UStringPrepProfile, us
prep_close);
U_NAMESPACE_END
#endif
/**
* Prepare the input buffer for use in applications with the given profile . This operation maps , normalizes ( NFKC ) ,
* checks for prohibited and BiDi characters in the order defined by RFC 3454
* depending on the options specified in the profile .
*
* @ param prep The profile to use
* @ param src Pointer to UChar buffer containing the string to prepare
* @ param srcLength Number of characters in the source string
* @ param dest Pointer to the destination buffer to receive the output
* @ param destCapacity The capacity of destination array
* @ param options A bit set of options :
*
* - USPREP_DEFAULT Prohibit processing of unassigned code points in the input
*
* - USPREP_ALLOW_UNASSIGNED Treat the unassigned code points are in the input
* as normal Unicode code points .
*
* @ param parseError Pointer to UParseError struct to receive information on position
* of error if an error is encountered . Can be NULL .
* @ param status ICU in / out error code parameter .
* U_INVALID_CHAR_FOUND if src contains
* unmatched single surrogates .
* U_INDEX_OUTOFBOUNDS_ERROR if src contains
* too many code points .
* U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough
* @ return The number of UChars in the destination buffer
* @ stable ICU 2 . 8
*/
U_CAPI int32_t U_EXPORT2
usprep_prepare( const UStringPrepProfile* prep,
const UChar* src, int32_t srcLength,
UChar* dest, int32_t destCapacity,
int32_t options,
UParseError* parseError,
UErrorCode* status );
#endif /* #if !UCONFIG_NO_IDNA */
#endif
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