Gecko [ tsuru-no-tsurugi.tokyo ]

Name	Size	Permission	Date
alphaindex.h	26.52 KB	-rw-r--r--	2021-11-04 15:01
appendable.h	8.53 KB	-rw-r--r--	2021-11-04 15:01
basictz.h	9.92 KB	-rw-r--r--	2021-11-04 15:01
brkiter.h	27.81 KB	-rw-r--r--	2021-11-04 15:01
bytestream.h	10.75 KB	-rw-r--r--	2021-11-04 15:01
bytestrie.h	20.77 KB	-rw-r--r--	2021-11-04 15:01
bytestriebuilder.h	7.46 KB	-rw-r--r--	2021-11-04 15:01
calendar.h	105.88 KB	-rw-r--r--	2021-11-04 15:01
caniter.h	7.44 KB	-rw-r--r--	2021-11-04 15:01
casemap.h	25.33 KB	-rw-r--r--	2021-11-04 15:01
char16ptr.h	7.22 KB	-rw-r--r--	2021-11-04 15:01
chariter.h	24.06 KB	-rw-r--r--	2021-11-04 15:01
choicfmt.h	23.97 KB	-rw-r--r--	2021-11-04 15:01
coleitr.h	13.77 KB	-rw-r--r--	2021-11-04 15:01
coll.h	56.26 KB	-rw-r--r--	2021-11-04 15:01
compactdecimalformat.h	6.88 KB	-rw-r--r--	2021-11-04 15:01
curramt.h	3.78 KB	-rw-r--r--	2021-11-04 15:01
currpinf.h	7.3 KB	-rw-r--r--	2021-11-04 15:01
currunit.h	4.02 KB	-rw-r--r--	2021-11-04 15:01
datefmt.h	40.71 KB	-rw-r--r--	2021-11-04 15:01
dbbi.h	1.19 KB	-rw-r--r--	2021-11-04 15:01
dcfmtsym.h	20.61 KB	-rw-r--r--	2021-11-04 15:01
decimfmt.h	87.57 KB	-rw-r--r--	2021-11-04 15:01
docmain.h	7.21 KB	-rw-r--r--	2021-11-04 15:01
dtfmtsym.h	38.21 KB	-rw-r--r--	2021-11-04 15:01
dtintrv.h	3.84 KB	-rw-r--r--	2021-11-04 15:01
dtitvfmt.h	49.27 KB	-rw-r--r--	2021-11-04 15:01
dtitvinf.h	18.63 KB	-rw-r--r--	2021-11-04 15:01
dtptngen.h	26.07 KB	-rw-r--r--	2021-11-04 15:01
dtrule.h	8.69 KB	-rw-r--r--	2021-11-04 15:01
edits.h	20.74 KB	-rw-r--r--	2021-11-04 15:01
enumset.h	2.08 KB	-rw-r--r--	2021-11-04 15:01
errorcode.h	4.84 KB	-rw-r--r--	2021-11-04 15:01
fieldpos.h	8.7 KB	-rw-r--r--	2021-11-04 15:01
filteredbrk.h	5.37 KB	-rw-r--r--	2021-11-04 15:01
fmtable.h	24.43 KB	-rw-r--r--	2021-11-04 15:01
format.h	12.5 KB	-rw-r--r--	2021-11-04 15:01
formattedvalue.h	9.75 KB	-rw-r--r--	2021-11-04 15:01
fpositer.h	3.03 KB	-rw-r--r--	2021-11-04 15:01
gender.h	3.33 KB	-rw-r--r--	2021-11-04 15:01
gregocal.h	31.88 KB	-rw-r--r--	2021-11-04 15:01
icudataver.h	1.02 KB	-rw-r--r--	2021-11-04 15:01
icuplug.h	11.83 KB	-rw-r--r--	2021-11-04 15:01
idna.h	12.7 KB	-rw-r--r--	2021-11-04 15:01
listformatter.h	8.79 KB	-rw-r--r--	2021-11-04 15:01
localebuilder.h	11.08 KB	-rw-r--r--	2021-11-04 15:01
localematcher.h	26.82 KB	-rw-r--r--	2021-11-04 15:01
localpointer.h	19.36 KB	-rw-r--r--	2021-11-04 15:01
locdspnm.h	7.12 KB	-rw-r--r--	2021-11-04 15:01
locid.h	47.66 KB	-rw-r--r--	2021-11-04 15:01
measfmt.h	11.42 KB	-rw-r--r--	2021-11-04 15:01
measunit.h	105.09 KB	-rw-r--r--	2021-11-04 15:01
measure.h	4.33 KB	-rw-r--r--	2021-11-04 15:01
messagepattern.h	33.71 KB	-rw-r--r--	2021-11-04 15:01
msgfmt.h	44.22 KB	-rw-r--r--	2021-11-04 15:01
normalizer2.h	33.66 KB	-rw-r--r--	2021-11-04 15:01
normlzr.h	30.95 KB	-rw-r--r--	2021-11-04 15:01
nounit.h	2.25 KB	-rw-r--r--	2021-11-04 15:01
numberformatter.h	92.29 KB	-rw-r--r--	2021-11-04 15:01
numberrangeformatter.h	25.19 KB	-rw-r--r--	2021-11-04 15:01
numfmt.h	49.84 KB	-rw-r--r--	2021-11-04 15:01
numsys.h	7.33 KB	-rw-r--r--	2021-11-04 15:01
parseerr.h	3.08 KB	-rw-r--r--	2021-11-04 15:01
parsepos.h	5.57 KB	-rw-r--r--	2021-11-04 15:01
platform.h	28.09 KB	-rw-r--r--	2021-11-04 15:01
plurfmt.h	25.24 KB	-rw-r--r--	2021-11-04 15:01
plurrule.h	20.82 KB	-rw-r--r--	2021-11-04 15:01
ptypes.h	3.49 KB	-rw-r--r--	2021-11-04 15:01
putil.h	6.32 KB	-rw-r--r--	2021-11-04 15:01
rbbi.h	27.75 KB	-rw-r--r--	2021-11-04 15:01
rbnf.h	48.85 KB	-rw-r--r--	2021-11-04 15:01
rbtz.h	15.83 KB	-rw-r--r--	2021-11-04 15:01
regex.h	84.36 KB	-rw-r--r--	2021-11-04 15:01
region.h	9.18 KB	-rw-r--r--	2021-11-04 15:01
reldatefmt.h	22.22 KB	-rw-r--r--	2021-11-04 15:01
rep.h	9.37 KB	-rw-r--r--	2021-11-04 15:01
resbund.h	18.08 KB	-rw-r--r--	2021-11-04 15:01
schriter.h	6.36 KB	-rw-r--r--	2021-11-04 15:01
scientificnumberformatter.h	6.43 KB	-rw-r--r--	2021-11-04 15:01
search.h	22.22 KB	-rw-r--r--	2021-11-04 15:01
selfmt.h	14.34 KB	-rw-r--r--	2021-11-04 15:01
simpleformatter.h	12.59 KB	-rw-r--r--	2021-11-04 15:01
simpletz.h	45.7 KB	-rw-r--r--	2021-11-04 15:01
smpdtfmt.h	71.07 KB	-rw-r--r--	2021-11-04 15:01
sortkey.h	11.18 KB	-rw-r--r--	2021-11-04 15:01
std_string.h	1.05 KB	-rw-r--r--	2021-11-04 15:01
strenum.h	9.92 KB	-rw-r--r--	2021-11-04 15:01
stringoptions.h	5.79 KB	-rw-r--r--	2021-11-04 15:01
stringpiece.h	10.05 KB	-rw-r--r--	2021-11-04 15:01
stringtriebuilder.h	15.47 KB	-rw-r--r--	2021-11-04 15:01
stsearch.h	21.41 KB	-rw-r--r--	2021-11-04 15:01
symtable.h	4.27 KB	-rw-r--r--	2021-11-04 15:01
tblcoll.h	36.92 KB	-rw-r--r--	2021-11-04 15:01
timezone.h	43.81 KB	-rw-r--r--	2021-11-04 15:01
tmunit.h	3.4 KB	-rw-r--r--	2021-11-04 15:01
tmutamt.h	4.91 KB	-rw-r--r--	2021-11-04 15:01
tmutfmt.h	7.42 KB	-rw-r--r--	2021-11-04 15:01
translit.h	65.82 KB	-rw-r--r--	2021-11-04 15:01
tzfmt.h	42.93 KB	-rw-r--r--	2021-11-04 15:01
tznames.h	16.85 KB	-rw-r--r--	2021-11-04 15:01
tzrule.h	35.6 KB	-rw-r--r--	2021-11-04 15:01
tztrans.h	6.13 KB	-rw-r--r--	2021-11-04 15:01
ubidi.h	89.61 KB	-rw-r--r--	2021-11-04 15:01
ubiditransform.h	12.7 KB	-rw-r--r--	2021-11-04 15:01
ubrk.h	24.46 KB	-rw-r--r--	2021-11-04 15:01
ucal.h	61 KB	-rw-r--r--	2021-11-04 15:01
ucasemap.h	15.21 KB	-rw-r--r--	2021-11-04 15:01
ucat.h	5.35 KB	-rw-r--r--	2021-11-04 15:01
uchar.h	144.64 KB	-rw-r--r--	2021-11-04 15:01
ucharstrie.h	22.53 KB	-rw-r--r--	2021-11-04 15:01
ucharstriebuilder.h	7.47 KB	-rw-r--r--	2021-11-04 15:01
uchriter.h	13.42 KB	-rw-r--r--	2021-11-04 15:01
uclean.h	11.2 KB	-rw-r--r--	2021-11-04 15:01
ucnv.h	83.06 KB	-rw-r--r--	2021-11-04 15:01
ucnv_cb.h	6.58 KB	-rw-r--r--	2021-11-04 15:01
ucnv_err.h	20.98 KB	-rw-r--r--	2021-11-04 15:01
ucnvsel.h	6.19 KB	-rw-r--r--	2021-11-04 15:01
ucol.h	61.51 KB	-rw-r--r--	2021-11-04 15:01
ucoleitr.h	9.82 KB	-rw-r--r--	2021-11-04 15:01
uconfig.h	12.07 KB	-rw-r--r--	2021-11-04 15:01
ucpmap.h	5.53 KB	-rw-r--r--	2021-11-04 15:01
ucptrie.h	22.5 KB	-rw-r--r--	2021-11-04 15:01
ucsdet.h	14.69 KB	-rw-r--r--	2021-11-04 15:01
ucurr.h	16.72 KB	-rw-r--r--	2021-11-04 15:01
udat.h	62.4 KB	-rw-r--r--	2021-11-04 15:01
udata.h	15.63 KB	-rw-r--r--	2021-11-04 15:01
udateintervalformat.h	11.93 KB	-rw-r--r--	2021-11-04 15:01
udatpg.h	26.76 KB	-rw-r--r--	2021-11-04 15:01
udisplaycontext.h	5.94 KB	-rw-r--r--	2021-11-04 15:01
uenum.h	7.79 KB	-rw-r--r--	2021-11-04 15:01
ufieldpositer.h	4.41 KB	-rw-r--r--	2021-11-04 15:01
uformattable.h	10.97 KB	-rw-r--r--	2021-11-04 15:01
uformattedvalue.h	12.3 KB	-rw-r--r--	2021-11-04 15:01
ugender.h	2.06 KB	-rw-r--r--	2021-11-04 15:01
uidna.h	33.43 KB	-rw-r--r--	2021-11-04 15:01
uiter.h	22.75 KB	-rw-r--r--	2021-11-04 15:01
uldnames.h	10.48 KB	-rw-r--r--	2021-11-04 15:01
ulistformatter.h	10.78 KB	-rw-r--r--	2021-11-04 15:01
uloc.h	54.63 KB	-rw-r--r--	2021-11-04 15:01
ulocdata.h	11.3 KB	-rw-r--r--	2021-11-04 15:01
umachine.h	16.05 KB	-rw-r--r--	2021-11-04 15:01
umisc.h	1.33 KB	-rw-r--r--	2021-11-04 15:01
umsg.h	24.25 KB	-rw-r--r--	2021-11-04 15:01
umutablecptrie.h	8.29 KB	-rw-r--r--	2021-11-04 15:01
unifilt.h	4 KB	-rw-r--r--	2021-11-04 15:01
unifunct.h	4.05 KB	-rw-r--r--	2021-11-04 15:01
unimatch.h	6.1 KB	-rw-r--r--	2021-11-04 15:01
unirepl.h	3.38 KB	-rw-r--r--	2021-11-04 15:01
uniset.h	66.51 KB	-rw-r--r--	2021-11-04 15:01
unistr.h	170.53 KB	-rw-r--r--	2021-11-04 15:01
unorm.h	20.55 KB	-rw-r--r--	2021-11-04 15:01
unorm2.h	24.68 KB	-rw-r--r--	2021-11-04 15:01
unum.h	54.95 KB	-rw-r--r--	2021-11-04 15:01
unumberformatter.h	30.45 KB	-rw-r--r--	2021-11-04 15:01
unumberrangeformatter.h	15.37 KB	-rw-r--r--	2021-11-04 15:01
unumsys.h	7.26 KB	-rw-r--r--	2021-11-04 15:01
uobject.h	10.68 KB	-rw-r--r--	2021-11-04 15:01
upluralrules.h	8.79 KB	-rw-r--r--	2021-11-04 15:01
uregex.h	71.99 KB	-rw-r--r--	2021-11-04 15:01
uregion.h	9.81 KB	-rw-r--r--	2021-11-04 15:01
ureldatefmt.h	17.04 KB	-rw-r--r--	2021-11-04 15:01
urename.h	134.62 KB	-rw-r--r--	2021-11-04 15:01
urep.h	5.38 KB	-rw-r--r--	2021-11-04 15:01
ures.h	36.54 KB	-rw-r--r--	2021-11-04 15:01
uscript.h	27.63 KB	-rw-r--r--	2021-11-04 15:01
usearch.h	39.21 KB	-rw-r--r--	2021-11-04 15:01
uset.h	44.44 KB	-rw-r--r--	2021-11-04 15:01
usetiter.h	9.68 KB	-rw-r--r--	2021-11-04 15:01
ushape.h	18 KB	-rw-r--r--	2021-11-04 15:01
uspoof.h	65.84 KB	-rw-r--r--	2021-11-04 15:01
usprep.h	8.19 KB	-rw-r--r--	2021-11-04 15:01
ustdio.h	38.56 KB	-rw-r--r--	2021-11-04 15:01
ustream.h	1.89 KB	-rw-r--r--	2021-11-04 15:01
ustring.h	72.36 KB	-rw-r--r--	2021-11-04 15:01
ustringtrie.h	3.15 KB	-rw-r--r--	2021-11-04 15:01
utext.h	58.08 KB	-rw-r--r--	2021-11-04 15:01
utf.h	7.87 KB	-rw-r--r--	2021-11-04 15:01
utf16.h	23.35 KB	-rw-r--r--	2021-11-04 15:01
utf32.h	763 B	-rw-r--r--	2021-11-04 15:01
utf8.h	30.83 KB	-rw-r--r--	2021-11-04 15:01
utf_old.h	45.83 KB	-rw-r--r--	2021-11-04 15:01
utmscale.h	13.78 KB	-rw-r--r--	2021-11-04 15:01
utrace.h	17.18 KB	-rw-r--r--	2021-11-04 15:01
utrans.h	25.54 KB	-rw-r--r--	2021-11-04 15:01
utypes.h	31.06 KB	-rw-r--r--	2021-11-04 15:01
uvernum.h	6.68 KB	-rw-r--r--	2021-11-04 15:01
uversion.h	5.99 KB	-rw-r--r--	2021-11-04 15:01
vtzone.h	20.8 KB	-rw-r--r--	2021-11-04 15:01

Rename

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*   Copyright (C) 2010-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  idna.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2010mar05
*   created by: Markus W. Scherer
*/

#ifndef __IDNA_H__
#define __IDNA_H__

/**
 * \file
 * \brief C++ API: Internationalizing Domain Names in Applications (IDNA)
 */

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#if !UCONFIG_NO_IDNA

#include "unicode/bytestream.h"
#include "unicode/stringpiece.h"
#include "unicode/uidna.h"
#include "unicode/unistr.h"

U_NAMESPACE_BEGIN

class IDNAInfo;

/**
 * Abstract base class for IDNA processing.
 * See http://www.unicode.org/reports/tr46/
 * and http://www.ietf.org/rfc/rfc3490.txt
 *
 * The IDNA class is not intended for public subclassing.
 *
 * This C++ API currently only implements UTS #46.
 * The uidna.h C API implements both UTS #46 (functions using UIDNA service object)
 * and IDNA2003 (functions that do not use a service object).
 * @stable ICU 4.6
 */
class U_COMMON_API IDNA : public UObject {
public:
    /**
     * Destructor.
     * @stable ICU 4.6
     */
    ~IDNA();

/**
     * Returns an IDNA instance which implements UTS #46.
     * Returns an unmodifiable instance, owned by the caller.
     * Cache it for multiple operations, and delete it when done.
     * The instance is thread-safe, that is, it can be used concurrently.
     *
     * UTS #46 defines Unicode IDNA Compatibility Processing,
     * updated to the latest version of Unicode and compatible with both
     * IDNA2003 and IDNA2008.
     *
     * The worker functions use transitional processing, including deviation mappings,
     * unless UIDNA_NONTRANSITIONAL_TO_ASCII or UIDNA_NONTRANSITIONAL_TO_UNICODE
     * is used in which case the deviation characters are passed through without change.
     *
     * Disallowed characters are mapped to U+FFFD.
     *
     * For available options see the uidna.h header.
     * Operations with the UTS #46 instance do not support the
     * UIDNA_ALLOW_UNASSIGNED option.
     *
     * By default, the UTS #46 implementation allows all ASCII characters (as valid or mapped).
     * When the UIDNA_USE_STD3_RULES option is used, ASCII characters other than
     * letters, digits, hyphen (LDH) and dot/full stop are disallowed and mapped to U+FFFD.
     *
     * @param options Bit set to modify the processing and error checking.
     *                See option bit set values in uidna.h.
     * @param errorCode 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 IDNA instance, if successful
     * @stable ICU 4.6
     */
    static IDNA *
    createUTS46Instance(uint32_t options, UErrorCode &errorCode);

/**
     * Converts a single domain name label into its ASCII form for DNS lookup.
     * If any processing step fails, then info.hasErrors() will be true 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 label Input domain name label
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    labelToASCII(const UnicodeString &label, UnicodeString &dest,
                 IDNAInfo &info, UErrorCode &errorCode) const = 0;

/**
     * Converts a single domain name label into its Unicode form for human-readable display.
     * If any processing step fails, then info.hasErrors() will be true.
     * 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 label Input domain name label
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    labelToUnicode(const UnicodeString &label, UnicodeString &dest,
                   IDNAInfo &info, UErrorCode &errorCode) const = 0;

/**
     * Converts a whole domain name into its ASCII form for DNS lookup.
     * If any processing step fails, then info.hasErrors() will be true 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 name Input domain name
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    nameToASCII(const UnicodeString &name, UnicodeString &dest,
                IDNAInfo &info, UErrorCode &errorCode) const = 0;

/**
     * Converts a whole domain name into its Unicode form for human-readable display.
     * If any processing step fails, then info.hasErrors() will be true.
     * 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 name Input domain name
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    nameToUnicode(const UnicodeString &name, UnicodeString &dest,
                  IDNAInfo &info, UErrorCode &errorCode) const = 0;

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

/**
     * Converts a single domain name label into its ASCII form for DNS lookup.
     * UTF-8 version of labelToASCII(), same behavior.
     *
     * @param label Input domain name label
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual void
    labelToASCII_UTF8(StringPiece label, ByteSink &dest,
                      IDNAInfo &info, UErrorCode &errorCode) const;

/**
     * Converts a single domain name label into its Unicode form for human-readable display.
     * UTF-8 version of labelToUnicode(), same behavior.
     *
     * @param label Input domain name label
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual void
    labelToUnicodeUTF8(StringPiece label, ByteSink &dest,
                       IDNAInfo &info, UErrorCode &errorCode) const;

/**
     * Converts a whole domain name into its ASCII form for DNS lookup.
     * UTF-8 version of nameToASCII(), same behavior.
     *
     * @param name Input domain name
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual void
    nameToASCII_UTF8(StringPiece name, ByteSink &dest,
                     IDNAInfo &info, UErrorCode &errorCode) const;

/**
     * Converts a whole domain name into its Unicode form for human-readable display.
     * UTF-8 version of nameToUnicode(), same behavior.
     *
     * @param name Input domain name
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode 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 dest
     * @stable ICU 4.6
     */
    virtual void
    nameToUnicodeUTF8(StringPiece name, ByteSink &dest,
                      IDNAInfo &info, UErrorCode &errorCode) const;
};

class UTS46;

/**
 * Output container for IDNA processing errors.
 * The IDNAInfo class is not suitable for subclassing.
 * @stable ICU 4.6
 */
class U_COMMON_API IDNAInfo : public UMemory {
public:
    /**
     * Constructor for stack allocation.
     * @stable ICU 4.6
     */
    IDNAInfo() : errors(0), labelErrors(0), isTransDiff(false), isBiDi(false), isOkBiDi(true) {}
    /**
     * Were there IDNA processing errors?
     * @return true if there were processing errors
     * @stable ICU 4.6
     */
    UBool hasErrors() const { return errors!=0; }
    /**
     * Returns a bit set indicating IDNA processing errors.
     * See UIDNA_ERROR_... constants in uidna.h.
     * @return bit set of processing errors
     * @stable ICU 4.6
     */
    uint32_t getErrors() const { return errors; }
    /**
     * Returns true if transitional and nontransitional processing produce different results.
     * This is the case when the input label or domain name contains
     * one or more deviation characters outside a Punycode label (see UTS #46).
     * <ul>
     * <li>With nontransitional processing, such characters are
     * copied to the destination string.
     * <li>With transitional processing, such characters are
     * mapped (sharp s/sigma) or removed (joiner/nonjoiner).
     * </ul>
     * @return true if transitional and nontransitional processing produce different results
     * @stable ICU 4.6
     */
    UBool isTransitionalDifferent() const { return isTransDiff; }

private:
    friend class UTS46;

IDNAInfo(const IDNAInfo &other);  // no copying
    IDNAInfo &operator=(const IDNAInfo &other);  // no copying

void reset() {
        errors=labelErrors=0;
        isTransDiff=false;
        isBiDi=false;
        isOkBiDi=true;
    }

uint32_t errors, labelErrors;
    UBool isTransDiff;
    UBool isBiDi;
    UBool isOkBiDi;
};

U_NAMESPACE_END

#endif  // UCONFIG_NO_IDNA

#endif /* U_SHOW_CPLUSPLUS_API */

#endif  // __IDNA_H__