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ðŸ“„ appendable.h(8.53 KB)
ðŸ“„ basictz.h(9.98 KB)
ðŸ“„ brkiter.h(27.81 KB)
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ðŸ“„ bytestriebuilder.h(7.48 KB)
ðŸ“„ calendar.h(102.25 KB)
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ðŸ“„ compactdecimalformat.h(6.88 KB)
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ðŸ“„ decimfmt.h(87.57 KB)
ðŸ“„ displayoptions.h(7.11 KB)
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ðŸ“„ icudataver.h(1.02 KB)
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ðŸ“„ idna.h(12.71 KB)
ðŸ“„ listformatter.h(8.61 KB)
ðŸ“„ localebuilder.h(11.08 KB)
ðŸ“„ localematcher.h(26.84 KB)
ðŸ“„ localpointer.h(19.36 KB)
ðŸ“„ locdspnm.h(7.12 KB)
ðŸ“„ locid.h(47.66 KB)
ðŸ“„ measfmt.h(11.42 KB)
ðŸ“„ measunit.h(106.33 KB)
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ðŸ“„ messagepattern.h(33.71 KB)
ðŸ“„ msgfmt.h(44.17 KB)
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ðŸ“„ nounit.h(2.25 KB)
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ðŸ“„ parseerr.h(3.08 KB)
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ðŸ“„ platform.h(28.55 KB)
ðŸ“„ plurfmt.h(25.25 KB)
ðŸ“„ plurrule.h(20.62 KB)
ðŸ“„ ptypes.h(3.49 KB)
ðŸ“„ putil.h(6.32 KB)
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ðŸ“„ regex.h(84.41 KB)
ðŸ“„ region.h(9.18 KB)
ðŸ“„ reldatefmt.h(22.22 KB)
ðŸ“„ rep.h(9.37 KB)
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ðŸ“„ schriter.h(6.1 KB)
ðŸ“„ scientificnumberformatter.h(6.44 KB)
ðŸ“„ search.h(22.22 KB)
ðŸ“„ selfmt.h(14.35 KB)
ðŸ“„ simpleformatter.h(12.59 KB)
ðŸ“„ simpletz.h(45.65 KB)
ðŸ“„ smpdtfmt.h(71.93 KB)
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ðŸ“„ stringtriebuilder.h(15.47 KB)
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ðŸ“„ timezone.h(43.81 KB)
ðŸ“„ tmunit.h(3.4 KB)
ðŸ“„ tmutamt.h(4.91 KB)
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ðŸ“„ translit.h(65.82 KB)
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ðŸ“„ ubidi.h(89.61 KB)
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ðŸ“„ uenum.h(7.79 KB)
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ðŸ“„ uformattable.h(10.97 KB)
ðŸ“„ uformattedvalue.h(12.25 KB)
ðŸ“„ ugender.h(2.06 KB)
ðŸ“„ uidna.h(33.43 KB)
ðŸ“„ uiter.h(22.75 KB)
ðŸ“„ uldnames.h(10.48 KB)
ðŸ“„ ulistformatter.h(10.78 KB)
ðŸ“„ uloc.h(54.66 KB)
ðŸ“„ ulocdata.h(11.3 KB)
ðŸ“„ umachine.h(15.73 KB)
ðŸ“„ umisc.h(1.34 KB)
ðŸ“„ umsg.h(24.25 KB)
ðŸ“„ umutablecptrie.h(8.3 KB)
ðŸ“„ unifilt.h(4 KB)
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ðŸ“„ uniset.h(66.12 KB)
ðŸ“„ unistr.h(170.53 KB)
ðŸ“„ unorm.h(20.55 KB)
ðŸ“„ unorm2.h(24.68 KB)
ðŸ“„ unum.h(56.6 KB)
ðŸ“„ unumberformatter.h(30.26 KB)
ðŸ“„ unumberrangeformatter.h(15.35 KB)
ðŸ“„ unumsys.h(7.26 KB)
ðŸ“„ uobject.h(10.68 KB)
ðŸ“„ upluralrules.h(8.79 KB)
ðŸ“„ uregex.h(71.99 KB)
ðŸ“„ uregion.h(9.81 KB)
ðŸ“„ ureldatefmt.h(17.04 KB)
ðŸ“„ urename.h(135.69 KB)
ðŸ“„ urep.h(5.38 KB)
ðŸ“„ ures.h(36.54 KB)
ðŸ“„ uscript.h(27.8 KB)
ðŸ“„ usearch.h(39.21 KB)
ðŸ“„ uset.h(44.19 KB)
ðŸ“„ usetiter.h(9.63 KB)
ðŸ“„ ushape.h(18 KB)
ðŸ“„ uspoof.h(65.84 KB)
ðŸ“„ usprep.h(8.19 KB)
ðŸ“„ ustdio.h(38.56 KB)
ðŸ“„ ustream.h(1.89 KB)
ðŸ“„ ustring.h(72.36 KB)
ðŸ“„ ustringtrie.h(3.15 KB)
ðŸ“„ utext.h(58.08 KB)
ðŸ“„ utf.h(7.87 KB)
ðŸ“„ utf16.h(23.35 KB)
ðŸ“„ utf32.h(763 B)
ðŸ“„ utf8.h(30.83 KB)
ðŸ“„ utf_old.h(45.8 KB)
ðŸ“„ utmscale.h(13.78 KB)
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ðŸ“„ utypes.h(31.06 KB)
ðŸ“„ uvernum.h(6.33 KB)
ðŸ“„ uversion.h(5.99 KB)
ðŸ“„ vtzone.h(20.68 KB)

Editing: idna.h

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

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