[apple/icu.git] / icuSources / common / unicode / idna.h

/*
*******************************************************************************
*   Copyright (C) 2010-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  idna.h
*   encoding:   US-ASCII
*   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 !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(const 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(const 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(const 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(const 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  // __IDNA_H__
Commit	Line	Data
729e4ab9 A	1	/*
729e4ab9 A	2	*******************************************************************************
4388f060	3	* Copyright (C) 2010-2012, International Business Machines
729e4ab9 A	4	* Corporation and others. All Rights Reserved.
	5	*******************************************************************************
	6	* file name: idna.h
	7	* encoding: US-ASCII
	8	* tab size: 8 (not used)
	9	* indentation:4
	10	*
	11	* created on: 2010mar05
	12	* created by: Markus W. Scherer
	13	*/
	14
	15	#ifndef __IDNA_H__
	16	#define __IDNA_H__
	17
	18	/**
	19	* \file
	20	* \brief C++ API: Internationalizing Domain Names in Applications (IDNA)
	21	*/
	22
	23	#include "unicode/utypes.h"
	24
	25	#if !UCONFIG_NO_IDNA
	26
	27	#include "unicode/bytestream.h"
	28	#include "unicode/stringpiece.h"
	29	#include "unicode/uidna.h"
	30	#include "unicode/unistr.h"
	31
	32	U_NAMESPACE_BEGIN
	33
51004dcb	34	class IDNAInfo;
729e4ab9 A	35
	36	/**
	37	* Abstract base class for IDNA processing.
	38	* See http://www.unicode.org/reports/tr46/
	39	* and http://www.ietf.org/rfc/rfc3490.txt
	40	*
	41	* The IDNA class is not intended for public subclassing.
	42	*
	43	* This C++ API currently only implements UTS #46.
	44	* The uidna.h C API implements both UTS #46 (functions using UIDNA service object)
	45	* and IDNA2003 (functions that do not use a service object).
4388f060	46	* @stable ICU 4.6
729e4ab9 A	47	*/
	48	class U_COMMON_API IDNA : public UObject {
	49	public:
4388f060 A	50	/**
	51	* Destructor.
	52	* @stable ICU 4.6
	53	*/
	54	~IDNA();
	55
729e4ab9 A	56	/**
	57	* Returns an IDNA instance which implements UTS #46.
	58	* Returns an unmodifiable instance, owned by the caller.
	59	* Cache it for multiple operations, and delete it when done.
	60	* The instance is thread-safe, that is, it can be used concurrently.
	61	*
	62	* UTS #46 defines Unicode IDNA Compatibility Processing,
	63	* updated to the latest version of Unicode and compatible with both
	64	* IDNA2003 and IDNA2008.
	65	*
	66	* The worker functions use transitional processing, including deviation mappings,
	67	* unless UIDNA_NONTRANSITIONAL_TO_ASCII or UIDNA_NONTRANSITIONAL_TO_UNICODE
	68	* is used in which case the deviation characters are passed through without change.
	69	*
	70	* Disallowed characters are mapped to U+FFFD.
	71	*
	72	* For available options see the uidna.h header.
	73	* Operations with the UTS #46 instance do not support the
	74	* UIDNA_ALLOW_UNASSIGNED option.
	75	*
	76	* By default, the UTS #46 implementation allows all ASCII characters (as valid or mapped).
	77	* When the UIDNA_USE_STD3_RULES option is used, ASCII characters other than
	78	* letters, digits, hyphen (LDH) and dot/full stop are disallowed and mapped to U+FFFD.
	79	*
	80	* @param options Bit set to modify the processing and error checking.
	81	* See option bit set values in uidna.h.
	82	* @param errorCode Standard ICU error code. Its input value must
	83	* pass the U_SUCCESS() test, or else the function returns
	84	* immediately. Check for U_FAILURE() on output or use with
	85	* function chaining. (See User Guide for details.)
	86	* @return the UTS #46 IDNA instance, if successful
4388f060	87	* @stable ICU 4.6
729e4ab9 A	88	*/
	89	static IDNA *
	90	createUTS46Instance(uint32_t options, UErrorCode &errorCode);
	91
	92	/**
	93	* Converts a single domain name label into its ASCII form for DNS lookup.
	94	* If any processing step fails, then info.hasErrors() will be TRUE and
	95	* the result might not be an ASCII string.
	96	* The label might be modified according to the types of errors.
	97	* Labels with severe errors will be left in (or turned into) their Unicode form.
	98	*
	99	* The UErrorCode indicates an error only in exceptional cases,
	100	* such as a U_MEMORY_ALLOCATION_ERROR.
	101	*
	102	* @param label Input domain name label
	103	* @param dest Destination string object
	104	* @param info Output container of IDNA processing details.
	105	* @param errorCode Standard ICU error code. Its input value must
	106	* pass the U_SUCCESS() test, or else the function returns
	107	* immediately. Check for U_FAILURE() on output or use with
	108	* function chaining. (See User Guide for details.)
	109	* @return dest
4388f060	110	* @stable ICU 4.6
729e4ab9 A	111	*/
	112	virtual UnicodeString &
	113	labelToASCII(const UnicodeString &label, UnicodeString &dest,
	114	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	115
	116	/**
	117	* Converts a single domain name label into its Unicode form for human-readable display.
	118	* If any processing step fails, then info.hasErrors() will be TRUE.
	119	* The label might be modified according to the types of errors.
	120	*
	121	* The UErrorCode indicates an error only in exceptional cases,
	122	* such as a U_MEMORY_ALLOCATION_ERROR.
	123	*
	124	* @param label Input domain name label
	125	* @param dest Destination string object
	126	* @param info Output container of IDNA processing details.
	127	* @param errorCode Standard ICU error code. Its input value must
	128	* pass the U_SUCCESS() test, or else the function returns
	129	* immediately. Check for U_FAILURE() on output or use with
	130	* function chaining. (See User Guide for details.)
	131	* @return dest
4388f060	132	* @stable ICU 4.6
729e4ab9 A	133	*/
	134	virtual UnicodeString &
	135	labelToUnicode(const UnicodeString &label, UnicodeString &dest,
	136	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	137
	138	/**
	139	* Converts a whole domain name into its ASCII form for DNS lookup.
	140	* If any processing step fails, then info.hasErrors() will be TRUE and
	141	* the result might not be an ASCII string.
	142	* The domain name might be modified according to the types of errors.
	143	* Labels with severe errors will be left in (or turned into) their Unicode form.
	144	*
	145	* The UErrorCode indicates an error only in exceptional cases,
	146	* such as a U_MEMORY_ALLOCATION_ERROR.
	147	*
	148	* @param name Input domain name
	149	* @param dest Destination string object
	150	* @param info Output container of IDNA processing details.
	151	* @param errorCode Standard ICU error code. Its input value must
	152	* pass the U_SUCCESS() test, or else the function returns
	153	* immediately. Check for U_FAILURE() on output or use with
	154	* function chaining. (See User Guide for details.)
	155	* @return dest
4388f060	156	* @stable ICU 4.6
729e4ab9 A	157	*/
	158	virtual UnicodeString &
	159	nameToASCII(const UnicodeString &name, UnicodeString &dest,
	160	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	161
	162	/**
	163	* Converts a whole domain name into its Unicode form for human-readable display.
	164	* If any processing step fails, then info.hasErrors() will be TRUE.
	165	* The domain name might be modified according to the types of errors.
	166	*
	167	* The UErrorCode indicates an error only in exceptional cases,
	168	* such as a U_MEMORY_ALLOCATION_ERROR.
	169	*
	170	* @param name Input domain name
	171	* @param dest Destination string object
	172	* @param info Output container of IDNA processing details.
	173	* @param errorCode Standard ICU error code. Its input value must
	174	* pass the U_SUCCESS() test, or else the function returns
	175	* immediately. Check for U_FAILURE() on output or use with
	176	* function chaining. (See User Guide for details.)
	177	* @return dest
4388f060	178	* @stable ICU 4.6
729e4ab9 A	179	*/
	180	virtual UnicodeString &
	181	nameToUnicode(const UnicodeString &name, UnicodeString &dest,
	182	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	183
	184	// UTF-8 versions of the processing methods ---------------------------- ***
	185
	186	/**
	187	* Converts a single domain name label into its ASCII form for DNS lookup.
	188	* UTF-8 version of labelToASCII(), same behavior.
	189	*
	190	* @param label Input domain name label
	191	* @param dest Destination byte sink; Flush()ed if successful
	192	* @param info Output container of IDNA processing details.
	193	* @param errorCode Standard ICU error code. Its input value must
	194	* pass the U_SUCCESS() test, or else the function returns
	195	* immediately. Check for U_FAILURE() on output or use with
	196	* function chaining. (See User Guide for details.)
	197	* @return dest
4388f060	198	* @stable ICU 4.6
729e4ab9 A	199	*/
	200	virtual void
	201	labelToASCII_UTF8(const StringPiece &label, ByteSink &dest,
	202	IDNAInfo &info, UErrorCode &errorCode) const;
	203
	204	/**
	205	* Converts a single domain name label into its Unicode form for human-readable display.
	206	* UTF-8 version of labelToUnicode(), same behavior.
	207	*
	208	* @param label Input domain name label
	209	* @param dest Destination byte sink; Flush()ed if successful
	210	* @param info Output container of IDNA processing details.
	211	* @param errorCode Standard ICU error code. Its input value must
	212	* pass the U_SUCCESS() test, or else the function returns
	213	* immediately. Check for U_FAILURE() on output or use with
	214	* function chaining. (See User Guide for details.)
	215	* @return dest
4388f060	216	* @stable ICU 4.6
729e4ab9 A	217	*/
	218	virtual void
	219	labelToUnicodeUTF8(const StringPiece &label, ByteSink &dest,
	220	IDNAInfo &info, UErrorCode &errorCode) const;
	221
	222	/**
	223	* Converts a whole domain name into its ASCII form for DNS lookup.
	224	* UTF-8 version of nameToASCII(), same behavior.
	225	*
	226	* @param name Input domain name
	227	* @param dest Destination byte sink; Flush()ed if successful
	228	* @param info Output container of IDNA processing details.
	229	* @param errorCode Standard ICU error code. Its input value must
	230	* pass the U_SUCCESS() test, or else the function returns
	231	* immediately. Check for U_FAILURE() on output or use with
	232	* function chaining. (See User Guide for details.)
	233	* @return dest
4388f060	234	* @stable ICU 4.6
729e4ab9 A	235	*/
	236	virtual void
	237	nameToASCII_UTF8(const StringPiece &name, ByteSink &dest,
	238	IDNAInfo &info, UErrorCode &errorCode) const;
	239
	240	/**
	241	* Converts a whole domain name into its Unicode form for human-readable display.
	242	* UTF-8 version of nameToUnicode(), same behavior.
	243	*
	244	* @param name Input domain name
	245	* @param dest Destination byte sink; Flush()ed if successful
	246	* @param info Output container of IDNA processing details.
	247	* @param errorCode Standard ICU error code. Its input value must
	248	* pass the U_SUCCESS() test, or else the function returns
	249	* immediately. Check for U_FAILURE() on output or use with
	250	* function chaining. (See User Guide for details.)
	251	* @return dest
4388f060	252	* @stable ICU 4.6
729e4ab9 A	253	*/
	254	virtual void
	255	nameToUnicodeUTF8(const StringPiece &name, ByteSink &dest,
	256	IDNAInfo &info, UErrorCode &errorCode) const;
729e4ab9 A	257	};
	258
	259	class UTS46;
	260
	261	/**
	262	* Output container for IDNA processing errors.
	263	* The IDNAInfo class is not suitable for subclassing.
4388f060	264	* @stable ICU 4.6
729e4ab9 A	265	*/
	266	class U_COMMON_API IDNAInfo : public UMemory {
	267	public:
	268	/**
	269	* Constructor for stack allocation.
4388f060	270	* @stable ICU 4.6
729e4ab9 A	271	*/
	272	IDNAInfo() : errors(0), labelErrors(0), isTransDiff(FALSE), isBiDi(FALSE), isOkBiDi(TRUE) {}
	273	/**
	274	* Were there IDNA processing errors?
	275	* @return TRUE if there were processing errors
4388f060	276	* @stable ICU 4.6
729e4ab9 A	277	*/
	278	UBool hasErrors() const { return errors!=0; }
	279	/**
	280	* Returns a bit set indicating IDNA processing errors.
	281	* See UIDNA_ERROR_... constants in uidna.h.
	282	* @return bit set of processing errors
4388f060	283	* @stable ICU 4.6
729e4ab9 A	284	*/
	285	uint32_t getErrors() const { return errors; }
	286	/**
	287	* Returns TRUE if transitional and nontransitional processing produce different results.
	288	* This is the case when the input label or domain name contains
	289	* one or more deviation characters outside a Punycode label (see UTS #46).
	290	* <ul>
	291	* <li>With nontransitional processing, such characters are
	292	* copied to the destination string.
	293	* <li>With transitional processing, such characters are
	294	* mapped (sharp s/sigma) or removed (joiner/nonjoiner).
	295	* </ul>
	296	* @return TRUE if transitional and nontransitional processing produce different results
4388f060	297	* @stable ICU 4.6
729e4ab9 A	298	*/
	299	UBool isTransitionalDifferent() const { return isTransDiff; }
	300
	301	private:
	302	friend class UTS46;
	303
	304	IDNAInfo(const IDNAInfo &other); // no copying
	305	IDNAInfo &operator=(const IDNAInfo &other); // no copying
	306
	307	void reset() {
	308	errors=labelErrors=0;
	309	isTransDiff=FALSE;
	310	isBiDi=FALSE;
	311	isOkBiDi=TRUE;
	312	}
	313
	314	uint32_t errors, labelErrors;
	315	UBool isTransDiff;
	316	UBool isBiDi;
	317	UBool isOkBiDi;
	318	};
	319
	320	U_NAMESPACE_END
	321
	322	#endif // UCONFIG_NO_IDNA
	323	#endif // __IDNA_H__