FM / unicode

/opt/alt/libicu/usr/include/unicode

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alphaindex.h	27056	0644	edit dl rm
appendable.h	8632	0644	edit dl rm
basictz.h	9055	0644	edit dl rm
brkiter.h	28195	0644	edit dl rm
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idna.h	12938	0644	edit dl rm
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localpointer.h	17284	0644	edit dl rm
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platform.h	27754	0644	edit dl rm
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uenum.h	7970	0644	edit dl rm
ufieldpositer.h	4461	0644	edit dl rm
uformattable.h	11198	0644	edit dl rm
ugender.h	2052	0644	edit dl rm
uidna.h	34169	0644	edit dl rm
uiter.h	23319	0644	edit dl rm
uldnames.h	10702	0644	edit dl rm
ulistformatter.h	5148	0644	edit dl rm
uloc.h	51971	0644	edit dl rm
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unirepl.h	3403	0644	edit dl rm
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unorm2.h	25254	0644	edit dl rm
unum.h	54666	0644	edit dl rm
unumberformatter.h	24335	0644	edit dl rm
unumsys.h	7314	0644	edit dl rm
uobject.h	10958	0644	edit dl rm
upluralrules.h	6880	0644	edit dl rm
uregex.h	73784	0644	edit dl rm
uregion.h	10073	0644	edit dl rm
ureldatefmt.h	12518	0644	edit dl rm
urename.h	130791	0644	edit dl rm
urep.h	5507	0644	edit dl rm
ures.h	37404	0644	edit dl rm
uscript.h	27153	0644	edit dl rm
usearch.h	39038	0644	edit dl rm
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usetiter.h	9719	0644	edit dl rm
ushape.h	18432	0644	edit dl rm
uspoof.h	67613	0644	edit dl rm
usprep.h	8331	0644	edit dl rm
ustdio.h	39469	0644	edit dl rm
ustream.h	1844	0644	edit dl rm
ustring.h	74211	0644	edit dl rm
ustringtrie.h	3224	0644	edit dl rm
utext.h	59503	0644	edit dl rm
utf.h	8046	0644	edit dl rm
utf8.h	30734	0644	edit dl rm
utf16.h	22866	0644	edit dl rm
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utf_old.h	44827	0644	edit dl rm
utmscale.h	14113	0644	edit dl rm
utrace.h	14219	0644	edit dl rm
utrans.h	26157	0644	edit dl rm
utypes.h	31212	0644	edit dl rm
uvernum.h	6206	0644	edit dl rm
uversion.h	6865	0644	edit dl rm
vtzone.h	20651	0644	edit dl rm

Edit: /opt/alt/libicu/usr/include/unicode/uidna.h (34169B)

// © 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:  uidna.h
 *   encoding:   UTF-8
 *   tab size:   8 (not used)
 *   indentation:4
 *
 *   created on: 2003feb1
 *   created by: Ram Viswanadha
 */

#ifndef __UIDNA_H__
#define __UIDNA_H__

#include "unicode/utypes.h"

#if !UCONFIG_NO_IDNA

#include "unicode/localpointer.h"
#include "unicode/parseerr.h"

/**
 * \file
 * \brief C API: Internationalizing Domain Names in Applications (IDNA)
 *
 * IDNA2008 is implemented according to UTS #46, see the IDNA C++ class in idna.h.
 *
 * The C API functions which do take a UIDNA * service object pointer
 * implement UTS #46 and IDNA2008.
 *
 * IDNA2003 is obsolete.
 * The C API functions which do not take a service object pointer
 * implement IDNA2003. They are all deprecated.
 */

/*
 * IDNA option bit set values.
 */
enum {
 /**
 * Default options value: None of the other options are set.
 * For use in static worker and factory methods.
 * @stable ICU 2.6
 */
 UIDNA_DEFAULT=0,
#ifndef U_HIDE_DEPRECATED_API
 /**
 * Option to allow unassigned code points in domain names and labels.
 * For use in static worker and factory methods.
 * This option is ignored by the UTS46 implementation.
 * (UTS #46 disallows unassigned code points.)
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
 UIDNA_ALLOW_UNASSIGNED=1,
#endif /* U_HIDE_DEPRECATED_API */
 /**
 * Option to check whether the input conforms to the STD3 ASCII rules,
 * for example the restriction of labels to LDH characters
 * (ASCII Letters, Digits and Hyphen-Minus).
 * For use in static worker and factory methods.
 * @stable ICU 2.6
 */
 UIDNA_USE_STD3_RULES=2,
 /**
 * IDNA option to check for whether the input conforms to the BiDi rules.
 * For use in static worker and factory methods.
 * This option is ignored by the IDNA2003 implementation.
 * (IDNA2003 always performs a BiDi check.)
 * @stable ICU 4.6
 */
 UIDNA_CHECK_BIDI=4,
 /**
 * IDNA option to check for whether the input conforms to the CONTEXTJ rules.
 * For use in static worker and factory methods.
 * This option is ignored by the IDNA2003 implementation.
 * (The CONTEXTJ check is new in IDNA2008.)
 * @stable ICU 4.6
 */
 UIDNA_CHECK_CONTEXTJ=8,
 /**
 * IDNA option for nontransitional processing in ToASCII().
 * For use in static worker and factory methods.
 * By default, ToASCII() uses transitional processing.
 * This option is ignored by the IDNA2003 implementation.
 * (This is only relevant for compatibility of newer IDNA implementations with IDNA2003.)
 * @stable ICU 4.6
 */
 UIDNA_NONTRANSITIONAL_TO_ASCII=0x10,
 /**
 * IDNA option for nontransitional processing in ToUnicode().
 * For use in static worker and factory methods.
 * By default, ToUnicode() uses transitional processing.
 * This option is ignored by the IDNA2003 implementation.
 * (This is only relevant for compatibility of newer IDNA implementations with IDNA2003.)
 * @stable ICU 4.6
 */
 UIDNA_NONTRANSITIONAL_TO_UNICODE=0x20,
 /**
 * IDNA option to check for whether the input conforms to the CONTEXTO rules.
 * For use in static worker and factory methods.
 * This option is ignored by the IDNA2003 implementation.
 * (The CONTEXTO check is new in IDNA2008.)
 * This is for use by registries for IDNA2008 conformance.
 * UTS #46 does not require the CONTEXTO check.
 * @stable ICU 49
 */
 UIDNA_CHECK_CONTEXTO=0x40
};

/**
 * Opaque C service object type for the new IDNA API.
 * @stable ICU 4.6
 */
struct UIDNA;
typedef struct UIDNA UIDNA; /**< C typedef for struct UIDNA. @stable ICU 4.6 */

/**
 * Returns a UIDNA instance which implements UTS #46.
 * Returns an unmodifiable instance, owned by the caller.
 * Cache it for multiple operations, and uidna_close() it when done.
 * The instance is thread-safe, that is, it can be used concurrently.
 *
 * For details about the UTS #46 implementation see the IDNA C++ class in idna.h.
 *
 * @param options Bit set to modify the processing and error checking.
 *                See option bit set values in uidna.h.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return the UTS #46 UIDNA instance, if successful
 * @stable ICU 4.6
 */
U_STABLE UIDNA * U_EXPORT2
uidna_openUTS46(uint32_t options, UErrorCode *pErrorCode);

/**
 * Closes a UIDNA instance.
 * @param idna UIDNA instance to be closed
 * @stable ICU 4.6
 */
U_STABLE void U_EXPORT2
uidna_close(UIDNA *idna);

#if U_SHOW_CPLUSPLUS_API

U_NAMESPACE_BEGIN

/**
 * \class LocalUIDNAPointer
 * "Smart pointer" class, closes a UIDNA via uidna_close().
 * For most methods see the LocalPointerBase base class.
 *
 * @see LocalPointerBase
 * @see LocalPointer
 * @stable ICU 4.6
 */
U_DEFINE_LOCAL_OPEN_POINTER(LocalUIDNAPointer, UIDNA, uidna_close);

U_NAMESPACE_END

#endif

/**
 * Output container for IDNA processing errors.
 * Initialize with UIDNA_INFO_INITIALIZER:
 * \code
 * UIDNAInfo info = UIDNA_INFO_INITIALIZER;
 * int32_t length = uidna_nameToASCII(..., &info, &errorCode);
 * if(U_SUCCESS(errorCode) && info.errors!=0) { ... }
 * \endcode
 * @stable ICU 4.6
 */
typedef struct UIDNAInfo {
 /** sizeof(UIDNAInfo) @stable ICU 4.6 */
 int16_t size;
 /**
 * Set to TRUE if transitional and nontransitional processing produce different results.
 * For details see C++ IDNAInfo::isTransitionalDifferent().
 * @stable ICU 4.6
 */
 UBool isTransitionalDifferent;
 UBool reservedB3; /**< Reserved field, do not use. @internal */
 /**
 * Bit set indicating IDNA processing errors. 0 if no errors.
 * See UIDNA_ERROR_... constants.
 * @stable ICU 4.6
 */
 uint32_t errors;
 int32_t reservedI2; /**< Reserved field, do not use. @internal */
 int32_t reservedI3; /**< Reserved field, do not use. @internal */
} UIDNAInfo;

/**
 * Static initializer for a UIDNAInfo struct.
 * @stable ICU 4.6
 */
#define UIDNA_INFO_INITIALIZER { \
    (int16_t)sizeof(UIDNAInfo), \
    FALSE, FALSE, \
    0, 0, 0 }

/**
 * Converts a single domain name label into its ASCII form for DNS lookup.
 * If any processing step fails, then pInfo->errors will be non-zero and
 * the result might not be an ASCII string.
 * The label might be modified according to the types of errors.
 * Labels with severe errors will be left in (or turned into) their Unicode form.
 *
 * The UErrorCode indicates an error only in exceptional cases,
 * such as a U_MEMORY_ALLOCATION_ERROR.
 *
 * @param idna UIDNA instance
 * @param label Input domain name label
 * @param length Label length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_labelToASCII(const UIDNA *idna,
                   const UChar *label, int32_t length,
                   UChar *dest, int32_t capacity,
                   UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a single domain name label into its Unicode form for human-readable display.
 * If any processing step fails, then pInfo->errors will be non-zero.
 * The label might be modified according to the types of errors.
 *
 * The UErrorCode indicates an error only in exceptional cases,
 * such as a U_MEMORY_ALLOCATION_ERROR.
 *
 * @param idna UIDNA instance
 * @param label Input domain name label
 * @param length Label length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_labelToUnicode(const UIDNA *idna,
                     const UChar *label, int32_t length,
                     UChar *dest, int32_t capacity,
                     UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a whole domain name into its ASCII form for DNS lookup.
 * If any processing step fails, then pInfo->errors will be non-zero and
 * the result might not be an ASCII string.
 * The domain name might be modified according to the types of errors.
 * Labels with severe errors will be left in (or turned into) their Unicode form.
 *
 * The UErrorCode indicates an error only in exceptional cases,
 * such as a U_MEMORY_ALLOCATION_ERROR.
 *
 * @param idna UIDNA instance
 * @param name Input domain name
 * @param length Domain name length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_nameToASCII(const UIDNA *idna,
                  const UChar *name, int32_t length,
                  UChar *dest, int32_t capacity,
                  UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a whole domain name into its Unicode form for human-readable display.
 * If any processing step fails, then pInfo->errors will be non-zero.
 * The domain name might be modified according to the types of errors.
 *
 * The UErrorCode indicates an error only in exceptional cases,
 * such as a U_MEMORY_ALLOCATION_ERROR.
 *
 * @param idna UIDNA instance
 * @param name Input domain name
 * @param length Domain name length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_nameToUnicode(const UIDNA *idna,
                    const UChar *name, int32_t length,
                    UChar *dest, int32_t capacity,
                    UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/* UTF-8 versions of the processing methods --------------------------------- */

/**
 * Converts a single domain name label into its ASCII form for DNS lookup.
 * UTF-8 version of uidna_labelToASCII(), same behavior.
 *
 * @param idna UIDNA instance
 * @param label Input domain name label
 * @param length Label length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_labelToASCII_UTF8(const UIDNA *idna,
                        const char *label, int32_t length,
                        char *dest, int32_t capacity,
                        UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a single domain name label into its Unicode form for human-readable display.
 * UTF-8 version of uidna_labelToUnicode(), same behavior.
 *
 * @param idna UIDNA instance
 * @param label Input domain name label
 * @param length Label length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_labelToUnicodeUTF8(const UIDNA *idna,
                         const char *label, int32_t length,
                         char *dest, int32_t capacity,
                         UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a whole domain name into its ASCII form for DNS lookup.
 * UTF-8 version of uidna_nameToASCII(), same behavior.
 *
 * @param idna UIDNA instance
 * @param name Input domain name
 * @param length Domain name length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_nameToASCII_UTF8(const UIDNA *idna,
                       const char *name, int32_t length,
                       char *dest, int32_t capacity,
                       UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/**
 * Converts a whole domain name into its Unicode form for human-readable display.
 * UTF-8 version of uidna_nameToUnicode(), same behavior.
 *
 * @param idna UIDNA instance
 * @param name Input domain name
 * @param length Domain name length, or -1 if NUL-terminated
 * @param dest Destination string buffer
 * @param capacity Destination buffer capacity
 * @param pInfo Output container of IDNA processing details.
 * @param pErrorCode Standard ICU error code. Its input value must
 *                  pass the U_SUCCESS() test, or else the function returns
 *                  immediately. Check for U_FAILURE() on output or use with
 *                  function chaining. (See User Guide for details.)
 * @return destination string length
 * @stable ICU 4.6
 */
U_STABLE int32_t U_EXPORT2
uidna_nameToUnicodeUTF8(const UIDNA *idna,
                        const char *name, int32_t length,
                        char *dest, int32_t capacity,
                        UIDNAInfo *pInfo, UErrorCode *pErrorCode);

/*
 * IDNA error bit set values.
 * When a domain name or label fails a processing step or does not meet the
 * validity criteria, then one or more of these error bits are set.
 */
enum {
    /**
     * A non-final domain name label (or the whole domain name) is empty.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_EMPTY_LABEL=1,
    /**
     * A domain name label is longer than 63 bytes.
     * (See STD13/RFC1034 3.1. Name space specifications and terminology.)
     * This is only checked in ToASCII operations, and only if the output label is all-ASCII.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_LABEL_TOO_LONG=2,
    /**
     * A domain name is longer than 255 bytes in its storage form.
     * (See STD13/RFC1034 3.1. Name space specifications and terminology.)
     * This is only checked in ToASCII operations, and only if the output domain name is all-ASCII.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_DOMAIN_NAME_TOO_LONG=4,
    /**
     * A label starts with a hyphen-minus ('-').
     * @stable ICU 4.6
     */
    UIDNA_ERROR_LEADING_HYPHEN=8,
    /**
     * A label ends with a hyphen-minus ('-').
     * @stable ICU 4.6
     */
    UIDNA_ERROR_TRAILING_HYPHEN=0x10,
    /**
     * A label contains hyphen-minus ('-') in the third and fourth positions.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_HYPHEN_3_4=0x20,
    /**
     * A label starts with a combining mark.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_LEADING_COMBINING_MARK=0x40,
    /**
     * A label or domain name contains disallowed characters.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_DISALLOWED=0x80,
    /**
     * A label starts with "xn--" but does not contain valid Punycode.
     * That is, an xn-- label failed Punycode decoding.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_PUNYCODE=0x100,
    /**
     * A label contains a dot=full stop.
     * This can occur in an input string for a single-label function.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_LABEL_HAS_DOT=0x200,
    /**
     * An ACE label does not contain a valid label string.
     * The label was successfully ACE (Punycode) decoded but the resulting
     * string had severe validation errors. For example,
     * it might contain characters that are not allowed in ACE labels,
     * or it might not be normalized.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_INVALID_ACE_LABEL=0x400,
    /**
     * A label does not meet the IDNA BiDi requirements (for right-to-left characters).
     * @stable ICU 4.6
     */
    UIDNA_ERROR_BIDI=0x800,
    /**
     * A label does not meet the IDNA CONTEXTJ requirements.
     * @stable ICU 4.6
     */
    UIDNA_ERROR_CONTEXTJ=0x1000,
    /**
     * A label does not meet the IDNA CONTEXTO requirements for punctuation characters.
     * Some punctuation characters "Would otherwise have been DISALLOWED"
     * but are allowed in certain contexts. (RFC 5892)
     * @stable ICU 49
     */
    UIDNA_ERROR_CONTEXTO_PUNCTUATION=0x2000,
    /**
     * A label does not meet the IDNA CONTEXTO requirements for digits.
     * Arabic-Indic Digits (U+066x) must not be mixed with Extended Arabic-Indic Digits (U+06Fx).
     * @stable ICU 49
     */
    UIDNA_ERROR_CONTEXTO_DIGITS=0x4000
};

#ifndef U_HIDE_DEPRECATED_API

/* IDNA2003 API ------------------------------------------------------------- */

/**
 * IDNA2003: This function implements the ToASCII operation as defined in the IDNA RFC.
 * This operation is done on single labels before sending it to something that expects
 * ASCII names. A label is an individual part of a domain name. Labels are usually
 * separated by dots; e.g. "www.example.com" is composed of 3 labels "www","example", and "com".
 *
 * IDNA2003 API Overview:
 *
 * The uidna_ API implements the IDNA protocol as defined in the IDNA RFC
 * (http://www.ietf.org/rfc/rfc3490.txt).
 * The RFC defines 2 operations: ToASCII and ToUnicode. Domain name labels
 * containing non-ASCII code points are processed by the
 * ToASCII operation before passing it to resolver libraries. Domain names
 * that are obtained from resolver libraries are processed by the
 * ToUnicode operation before displaying the domain name to the user.
 * IDNA requires that implementations process input strings with Nameprep
 * (http://www.ietf.org/rfc/rfc3491.txt),
 * which is a profile of Stringprep (http://www.ietf.org/rfc/rfc3454.txt),
 * and then with Punycode (http://www.ietf.org/rfc/rfc3492.txt).
 * Implementations of IDNA MUST fully implement Nameprep and Punycode;
 * neither Nameprep nor Punycode are optional.
 * The input and output of ToASCII and ToUnicode operations are Unicode
 * and are designed to be chainable, i.e., applying ToASCII or ToUnicode operations
 * multiple times to an input string will yield the same result as applying the operation
 * once.
 * ToUnicode(ToUnicode(ToUnicode...(ToUnicode(string)))) == ToUnicode(string) 
 * ToASCII(ToASCII(ToASCII...(ToASCII(string))) == ToASCII(string).
 *
 * @param src Input UChar array containing label in Unicode.
 * @param srcLength Number of UChars in src, or -1 if NUL-terminated.
 * @param dest Output UChar array with ASCII (ACE encoded) label.
 * @param destCapacity Size of dest.
 * @param options A bit set of options:
 *
 * - UIDNA_DEFAULT Use default options, i.e., do not process unassigned code points
 * and do not use STD3 ASCII rules
 * If unassigned code points are found the operation fails with 
 * U_UNASSIGNED_ERROR error code.
 *
 * - UIDNA_ALLOW_UNASSIGNED Unassigned values can be converted to ASCII for query operations
 * If this option is set, the unassigned code points are in the input 
 * are treated as normal Unicode code points.
 *
 * - UIDNA_USE_STD3_RULES Use STD3 ASCII rules for host name syntax restrictions
 * If this option is set and the input does not satisfy STD3 rules, 
 * the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
 *
 * @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 length of the result string, if successful - or in case of a buffer overflow,
 * in which case it will be greater than destCapacity.
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
U_DEPRECATED int32_t U_EXPORT2
uidna_toASCII(const UChar* src, int32_t srcLength, 
 UChar* dest, int32_t destCapacity,
 int32_t options,
 UParseError* parseError,
 UErrorCode* status);

/**
 * IDNA2003: This function implements the ToUnicode operation as defined in the IDNA RFC.
 * This operation is done on single labels before sending it to something that expects
 * Unicode names. A label is an individual part of a domain name. Labels are usually
 * separated by dots; for e.g. "www.example.com" is composed of 3 labels "www","example", and "com".
 *
 * @param src Input UChar array containing ASCII (ACE encoded) label.
 * @param srcLength Number of UChars in src, or -1 if NUL-terminated.
 * @param dest Output Converted UChar array containing Unicode equivalent of label.
 * @param destCapacity Size of dest.
 * @param options A bit set of options:
 *
 * - UIDNA_DEFAULT Use default options, i.e., do not process unassigned code points
 * and do not use STD3 ASCII rules
 * If unassigned code points are found the operation fails with 
 * U_UNASSIGNED_ERROR error code.
 *
 * - UIDNA_ALLOW_UNASSIGNED Unassigned values can be converted to ASCII for query operations
 * If this option is set, the unassigned code points are in the input 
 * are treated as normal Unicode code points. Note: This option is 
 * required on toUnicode operation because the RFC mandates 
 * verification of decoded ACE input by applying toASCII and comparing
 * its output with source
 *
 * - UIDNA_USE_STD3_RULES Use STD3 ASCII rules for host name syntax restrictions
 * If this option is set and the input does not satisfy STD3 rules, 
 * the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
 *
 * @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 length of the result string, if successful - or in case of a buffer overflow,
 * in which case it will be greater than destCapacity.
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
U_DEPRECATED int32_t U_EXPORT2
uidna_toUnicode(const UChar* src, int32_t srcLength,
 UChar* dest, int32_t destCapacity,
 int32_t options,
 UParseError* parseError,
 UErrorCode* status);

/**
 * IDNA2003: Convenience function that implements the IDNToASCII operation as defined in the IDNA RFC.
 * This operation is done on complete domain names, e.g: "www.example.com". 
 * It is important to note that this operation can fail. If it fails, then the input 
 * domain name cannot be used as an Internationalized Domain Name and the application
 * should have methods defined to deal with the failure.
 *
 * Note: IDNA RFC specifies that a conformant application should divide a domain name
 * into separate labels, decide whether to apply allowUnassigned and useSTD3ASCIIRules on each, 
 * and then convert. This function does not offer that level of granularity. The options once 
 * set will apply to all labels in the domain name
 *
 * @param src Input UChar array containing IDN in Unicode.
 * @param srcLength Number of UChars in src, or -1 if NUL-terminated.
 * @param dest Output UChar array with ASCII (ACE encoded) IDN.
 * @param destCapacity Size of dest.
 * @param options A bit set of options:
 *
 * - UIDNA_DEFAULT Use default options, i.e., do not process unassigned code points
 * and do not use STD3 ASCII rules
 * If unassigned code points are found the operation fails with 
 * U_UNASSIGNED_CODE_POINT_FOUND error code.
 *
 * - UIDNA_ALLOW_UNASSIGNED Unassigned values can be converted to ASCII for query operations
 * If this option is set, the unassigned code points are in the input 
 * are treated as normal Unicode code points.
 *
 * - UIDNA_USE_STD3_RULES Use STD3 ASCII rules for host name syntax restrictions
 * If this option is set and the input does not satisfy STD3 rules, 
 * the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
 *
 * @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 length of the result string, if successful - or in case of a buffer overflow,
 * in which case it will be greater than destCapacity.
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
U_DEPRECATED int32_t U_EXPORT2
uidna_IDNToASCII( const UChar* src, int32_t srcLength,
 UChar* dest, int32_t destCapacity,
 int32_t options,
 UParseError* parseError,
 UErrorCode* status);

/**
 * IDNA2003: Convenience function that implements the IDNToUnicode operation as defined in the IDNA RFC.
 * This operation is done on complete domain names, e.g: "www.example.com". 
 *
 * Note: IDNA RFC specifies that a conformant application should divide a domain name
 * into separate labels, decide whether to apply allowUnassigned and useSTD3ASCIIRules on each, 
 * and then convert. This function does not offer that level of granularity. The options once 
 * set will apply to all labels in the domain name
 *
 * @param src Input UChar array containing IDN in ASCII (ACE encoded) form.
 * @param srcLength Number of UChars in src, or -1 if NUL-terminated.
 * @param dest Output UChar array containing Unicode equivalent of source IDN.
 * @param destCapacity Size of dest.
 * @param options A bit set of options:
 *
 * - UIDNA_DEFAULT Use default options, i.e., do not process unassigned code points
 * and do not use STD3 ASCII rules
 * If unassigned code points are found the operation fails with 
 * U_UNASSIGNED_CODE_POINT_FOUND error code.
 *
 * - UIDNA_ALLOW_UNASSIGNED Unassigned values can be converted to ASCII for query operations
 * If this option is set, the unassigned code points are in the input 
 * are treated as normal Unicode code points.
 *
 * - UIDNA_USE_STD3_RULES Use STD3 ASCII rules for host name syntax restrictions
 * If this option is set and the input does not satisfy STD3 rules, 
 * the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
 *
 * @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 length of the result string, if successful - or in case of a buffer overflow,
 * in which case it will be greater than destCapacity.
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
U_DEPRECATED int32_t U_EXPORT2
uidna_IDNToUnicode( const UChar* src, int32_t srcLength,
 UChar* dest, int32_t destCapacity,
 int32_t options,
 UParseError* parseError,
 UErrorCode* status);

/**
 * IDNA2003: Compare two IDN strings for equivalence.
 * This function splits the domain names into labels and compares them.
 * According to IDN RFC, whenever two labels are compared, they are 
 * considered equal if and only if their ASCII forms (obtained by 
 * applying toASCII) match using an case-insensitive ASCII comparison.
 * Two domain names are considered a match if and only if all labels 
 * match regardless of whether label separators match.
 *
 * @param s1 First source string.
 * @param length1 Length of first source string, or -1 if NUL-terminated.
 *
 * @param s2 Second source string.
 * @param length2 Length of second source string, or -1 if NUL-terminated.
 * @param options A bit set of options:
 *
 * - UIDNA_DEFAULT Use default options, i.e., do not process unassigned code points
 * and do not use STD3 ASCII rules
 * If unassigned code points are found the operation fails with 
 * U_UNASSIGNED_CODE_POINT_FOUND error code.
 *
 * - UIDNA_ALLOW_UNASSIGNED Unassigned values can be converted to ASCII for query operations
 * If this option is set, the unassigned code points are in the input 
 * are treated as normal Unicode code points.
 *
 * - UIDNA_USE_STD3_RULES Use STD3 ASCII rules for host name syntax restrictions
 * If this option is set and the input does not satisfy STD3 rules, 
 * the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
 *
 * @param status ICU error code in/out parameter.
 * Must fulfill U_SUCCESS before the function call.
 * @return <0 or 0 or >0 as usual for string comparisons
 * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA.
 */
U_DEPRECATED int32_t U_EXPORT2
uidna_compare( const UChar *s1, int32_t length1,
 const UChar *s2, int32_t length2,
 int32_t options,
 UErrorCode* status);

#endif  /* U_HIDE_DEPRECATED_API */

#endif /* #if !UCONFIG_NO_IDNA */

#endif

cmd: