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); -#ifndef U_HIDE_DRAFT_API +/** + * 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); -/** - * Option to prohibit processing of unassigned codepoints in the input and - * do not check if the input conforms to STD-3 ASCII rules. - * - * @see uidna_toASCII uidna_toUnicode - * @stable ICU 2.6 +/* 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 */ -#define UIDNA_DEFAULT 0x0000 -/** - * Option to allow processing of unassigned codepoints in the input - * - * @see uidna_toASCII uidna_toUnicode - * @stable ICU 2.6 +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 */ -#define UIDNA_ALLOW_UNASSIGNED 0x0001 -/** - * Option to check if input conforms to STD-3 ASCII rules - * - * @see uidna_toASCII uidna_toUnicode - * @stable ICU 2.6 +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 */ -#define UIDNA_USE_STD3_RULES 0x0002 +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); -#endif /*U_HIDE_DRAFT_API*/ - /** - * This function implements the ToASCII operation as defined in the IDNA RFC. + * 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". + * 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. @@ -96,7 +553,7 @@ * - 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 @@ -109,10 +566,11 @@ * U_INDEX_OUTOFBOUNDS_ERROR if src contains * too many code points. * U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough - * @return Number of ASCII characters converted. - * @stable ICU 2.6 + * @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_STABLE int32_t U_EXPORT2 +U_DEPRECATED int32_t U_EXPORT2 uidna_toASCII(const UChar* src, int32_t srcLength, UChar* dest, int32_t destCapacity, int32_t options, @@ -121,18 +579,17 @@ uidna_toASCII(const UChar* src, int32_t srcLength, /** - * This function implements the ToUnicode operation as defined in the IDNA RFC. + * 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". + * 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 @@ -145,8 +602,6 @@ uidna_toASCII(const UChar* src, int32_t srcLength, * 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 @@ -159,10 +614,11 @@ uidna_toASCII(const UChar* src, int32_t srcLength, * U_INDEX_OUTOFBOUNDS_ERROR if src contains * too many code points. * U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough - * @return Number of Unicode characters converted. - * @stable ICU 2.6 + * @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_STABLE int32_t U_EXPORT2 +U_DEPRECATED int32_t U_EXPORT2 uidna_toUnicode(const UChar* src, int32_t srcLength, UChar* dest, int32_t destCapacity, int32_t options, @@ -171,12 +627,12 @@ uidna_toUnicode(const UChar* src, int32_t srcLength, /** - * Convenience function that implements the IDNToASCII operation as defined in the IDNA RFC. + * 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 @@ -187,7 +643,7 @@ uidna_toUnicode(const UChar* src, int32_t srcLength, * @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 @@ -196,11 +652,11 @@ uidna_toUnicode(const UChar* src, int32_t srcLength, * - 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. @@ -209,10 +665,11 @@ uidna_toUnicode(const UChar* src, int32_t srcLength, * U_INDEX_OUTOFBOUNDS_ERROR if src contains * too many code points. * U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough - * @return Number of ASCII characters converted. - * @stable ICU 2.6 + * @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_STABLE int32_t U_EXPORT2 +U_DEPRECATED int32_t U_EXPORT2 uidna_IDNToASCII( const UChar* src, int32_t srcLength, UChar* dest, int32_t destCapacity, int32_t options, @@ -220,7 +677,7 @@ uidna_IDNToASCII( const UChar* src, int32_t srcLength, UErrorCode* status); /** - * Convenience function that implements the IDNToUnicode operation as defined in the IDNA RFC. + * 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 @@ -233,7 +690,7 @@ uidna_IDNToASCII( const UChar* src, int32_t srcLength, * @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 @@ -242,7 +699,7 @@ uidna_IDNToASCII( const UChar* src, int32_t srcLength, * - 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 @@ -255,10 +712,11 @@ uidna_IDNToASCII( const UChar* src, int32_t srcLength, * U_INDEX_OUTOFBOUNDS_ERROR if src contains * too many code points. * U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough - * @return Number of ASCII characters converted. - * @stable ICU 2.6 + * @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_STABLE int32_t U_EXPORT2 +U_DEPRECATED int32_t U_EXPORT2 uidna_IDNToUnicode( const UChar* src, int32_t srcLength, UChar* dest, int32_t destCapacity, int32_t options, @@ -266,7 +724,7 @@ uidna_IDNToUnicode( const UChar* src, int32_t srcLength, UErrorCode* status); /** - * Compare two IDN strings for equivalence. + * 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 @@ -280,7 +738,7 @@ uidna_IDNToUnicode( const UChar* src, int32_t srcLength, * @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 @@ -289,7 +747,7 @@ uidna_IDNToUnicode( const UChar* src, int32_t srcLength, * - 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 @@ -297,14 +755,16 @@ uidna_IDNToUnicode( const UChar* src, int32_t srcLength, * @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 - * @stable ICU 2.6 + * @deprecated ICU 55 Use UTS #46 instead via uidna_openUTS46() or class IDNA. */ -U_STABLE int32_t U_EXPORT2 +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