Move ICU headers part 1

public/common/unicode/uidna.h

Index: public/common/unicode/uidna.h
===================================================================
--- public/common/unicode/uidna.h	(revision 210659)
+++ public/common/unicode/uidna.h	(working copy)
@@ -1,733 +0,0 @@
-/*
- *******************************************************************************
- *
- *   Copyright (C) 2003-2010, International Business Machines
- *   Corporation and others.  All Rights Reserved.
- *
- *******************************************************************************
- *   file name:  uidna.h
- *   encoding:   US-ASCII
- *   tab size:   8 (not used)
- *   indentation:4
- *
- *   created on: 2003feb1
- *   created by: Ram Viswanadha
- */
-
-#ifndef __UIDNA_H__
-#define __UIDNA_H__
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_IDNA
-
-#include "unicode/localpointer.h"
-#include "unicode/parseerr.h"
-
-/**
- * \file
- * \brief C API: Internationalizing Domain Names in Applications (IDNA)
- *
- * IDNA2008 is implemented according to UTS #46, see the IDNA C++ class in idna.h.
- *
- * The C API functions which do take a UIDNA * service object pointer
- * implement UTS #46 and IDNA2008.
- * The C API functions which do not take a service object pointer
- * implement IDNA2003.
- */
-
-/*
- * IDNA option bit set values.
- */
-enum {
-    /**
-     * Default options value: None of the other options are set.
-     * @stable ICU 2.6
-     */
-    UIDNA_DEFAULT=0,
-    /**
-     * Option to allow unassigned code points in domain names and labels.
-     * This option is ignored by the UTS46 implementation.
-     * (UTS #46 disallows unassigned code points.)
-     * @stable ICU 2.6
-     */
-    UIDNA_ALLOW_UNASSIGNED=1,
-    /**
-     * 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).
-     * @stable ICU 2.6
-     */
-    UIDNA_USE_STD3_RULES=2,
-    /**
-     * IDNA option to check for whether the input conforms to the BiDi rules.
-     * This option is ignored by the IDNA2003 implementation.
-     * (IDNA2003 always performs a BiDi check.)
-     * @draft ICU 4.6
-     */
-    UIDNA_CHECK_BIDI=4,
-    /**
-     * IDNA option to check for whether the input conforms to the CONTEXTJ rules.
-     * This option is ignored by the IDNA2003 implementation.
-     * (The CONTEXTJ check is new in IDNA2008.)
-     * @draft ICU 4.6
-     */
-    UIDNA_CHECK_CONTEXTJ=8,
-    /**
-     * IDNA option for nontransitional processing in ToASCII().
-     * 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.)
-     * @draft ICU 4.6
-     */
-    UIDNA_NONTRANSITIONAL_TO_ASCII=0x10,
-    /**
-     * IDNA option for nontransitional processing in ToUnicode().
-     * 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.)
-     * @draft ICU 4.6
-     */
-    UIDNA_NONTRANSITIONAL_TO_UNICODE=0x20
-};
-
-/**
- * Opaque C service object type for the new IDNA API.
- * @draft ICU 4.6
- */
-struct UIDNA;
-typedef struct UIDNA UIDNA;  /**< C typedef for struct UIDNA. @draft 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
- * @draft ICU 4.6
- */
-U_DRAFT UIDNA * U_EXPORT2
-uidna_openUTS46(uint32_t options, UErrorCode *pErrorCode);
-
-/**
- * Closes a UIDNA instance.
- * @param idna UIDNA instance to be closed
- * @draft ICU 4.6
- */
-U_DRAFT 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
- * @draft 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
- * @draft ICU 4.6
- */
-struct UIDNAInfo {
-    /** sizeof(UIDNAInfo) @draft ICU 4.6 */
-    int16_t size;
-    /**
-     * Set to TRUE if transitional and nontransitional processing produce different results.
-     * For details see C++ IDNAInfo::isTransitionalDifferent().
-     * @draft 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.
-     * @draft ICU 4.6
-     */
-    uint32_t errors;
-    int32_t reservedI2;  /**< Reserved field, do not use. @internal */
-    int32_t reservedI3;  /**< Reserved field, do not use. @internal */
-};
-typedef struct UIDNAInfo UIDNAInfo;
-
-/**
- * Static initializer for a UIDNAInfo struct.
- * @draft 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
- * @draft ICU 4.6
- */
-U_DRAFT 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
- * @draft ICU 4.6
- */
-U_DRAFT 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
- * @draft ICU 4.6
- */
-U_DRAFT int32_t U_EXPORT2
-uidna_nameToASCII(const UIDNA *idna,
-                  const UChar *name, int32_t length,
-                  UChar *dest, int32_t capacity,
-                  UIDNAInfo *pInfo, UErrorCode *pErrorCode);
-
-/**
- * Converts a whole domain name into its Unicode form for human-readable display.
- * If any processing step fails, then pInfo->errors will be non-zero.
- * The domain name might be modified according to the types of errors.
- *
- * The UErrorCode indicates an error only in exceptional cases,
- * such as a U_MEMORY_ALLOCATION_ERROR.
- *
- * @param idna UIDNA instance
- * @param name Input domain name
- * @param length Domain name length, or -1 if NUL-terminated
- * @param dest Destination string buffer
- * @param capacity Destination buffer capacity
- * @param pInfo Output container of IDNA processing details.
- * @param pErrorCode Standard ICU error code. Its input value must
- *                  pass the U_SUCCESS() test, or else the function returns
- *                  immediately. Check for U_FAILURE() on output or use with
- *                  function chaining. (See User Guide for details.)
- * @return destination string length
- * @draft ICU 4.6
- */
-U_DRAFT int32_t U_EXPORT2
-uidna_nameToUnicode(const UIDNA *idna,
-                    const UChar *name, int32_t length,
-                    UChar *dest, int32_t capacity,
-                    UIDNAInfo *pInfo, UErrorCode *pErrorCode);
-
-/* UTF-8 versions of the processing methods --------------------------------- */
-
-/**
- * Converts a single domain name label into its ASCII form for DNS lookup.
- * UTF-8 version of uidna_labelToASCII(), same behavior.
- *
- * @param idna UIDNA instance
- * @param label Input domain name label
- * @param length Label length, or -1 if NUL-terminated
- * @param dest Destination string buffer
- * @param capacity Destination buffer capacity
- * @param pInfo Output container of IDNA processing details.
- * @param pErrorCode Standard ICU error code. Its input value must
- *                  pass the U_SUCCESS() test, or else the function returns
- *                  immediately. Check for U_FAILURE() on output or use with
- *                  function chaining. (See User Guide for details.)
- * @return destination string length
- * @draft ICU 4.6
- */
-U_DRAFT 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
- * @draft ICU 4.6
- */
-U_DRAFT 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
- * @draft ICU 4.6
- */
-U_DRAFT int32_t U_EXPORT2
-uidna_nameToASCII_UTF8(const UIDNA *idna,
-                       const char *name, int32_t length,
-                       char *dest, int32_t capacity,
-                       UIDNAInfo *pInfo, UErrorCode *pErrorCode);
-
-/**
- * Converts a whole domain name into its Unicode form for human-readable display.
- * UTF-8 version of uidna_nameToUnicode(), same behavior.
- *
- * @param idna UIDNA instance
- * @param name Input domain name
- * @param length Domain name length, or -1 if NUL-terminated
- * @param dest Destination string buffer
- * @param capacity Destination buffer capacity
- * @param pInfo Output container of IDNA processing details.
- * @param pErrorCode Standard ICU error code. Its input value must
- *                  pass the U_SUCCESS() test, or else the function returns
- *                  immediately. Check for U_FAILURE() on output or use with
- *                  function chaining. (See User Guide for details.)
- * @return destination string length
- * @draft ICU 4.6
- */
-U_DRAFT 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.
-     * @draft 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.
-     * @draft 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.
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_DOMAIN_NAME_TOO_LONG=4,
-    /**
-     * A label starts with a hyphen-minus ('-').
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_LEADING_HYPHEN=8,
-    /**
-     * A label ends with a hyphen-minus ('-').
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_TRAILING_HYPHEN=0x10,
-    /**
-     * A label contains hyphen-minus ('-') in the third and fourth positions.
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_HYPHEN_3_4=0x20,
-    /**
-     * A label starts with a combining mark.
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_LEADING_COMBINING_MARK=0x40,
-    /**
-     * A label or domain name contains disallowed characters.
-     * @draft 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.
-     * @draft 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.
-     * @draft 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.
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_INVALID_ACE_LABEL=0x400,
-    /**
-     * A label does not meet the IDNA BiDi requirements (for right-to-left characters).
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_BIDI=0x800,
-    /**
-     * A label does not meet the IDNA CONTEXTJ requirements.
-     * @draft ICU 4.6
-     */
-    UIDNA_ERROR_CONTEXTJ=0x1000
-};
-
-/* IDNA2003 API ------------------------------------------------------------- */
-
-/**
- * IDNA2003: This function implements the ToASCII operation as defined in the IDNA RFC.
- * This operation is done on <b>single labels</b> before sending it to something that expects
- * ASCII names. A label is an individual part of a domain name. Labels are usually
- * separated by dots; e.g. "www.example.com" is composed of 3 labels "www","example", and "com".
- *
- * IDNA2003 API Overview:
- *
- * The uidna_ API implements the IDNA protocol as defined in the IDNA RFC
- * (http://www.ietf.org/rfc/rfc3490.txt).
- * The RFC defines 2 operations: ToASCII and ToUnicode. Domain name labels
- * containing non-ASCII code points are processed by the
- * ToASCII operation before passing it to resolver libraries. Domain names
- * that are obtained from resolver libraries are processed by the
- * ToUnicode operation before displaying the domain name to the user.
- * IDNA requires that implementations process input strings with Nameprep
- * (http://www.ietf.org/rfc/rfc3491.txt),
- * which is a profile of Stringprep (http://www.ietf.org/rfc/rfc3454.txt),
- * and then with Punycode (http://www.ietf.org/rfc/rfc3492.txt).
- * Implementations of IDNA MUST fully implement Nameprep and Punycode;
- * neither Nameprep nor Punycode are optional.
- * The input and output of ToASCII and ToUnicode operations are Unicode
- * and are designed to be chainable, i.e., applying ToASCII or ToUnicode operations
- * multiple times to an input string will yield the same result as applying the operation
- * once.
- * ToUnicode(ToUnicode(ToUnicode...(ToUnicode(string)))) == ToUnicode(string) 
- * ToASCII(ToASCII(ToASCII...(ToASCII(string))) == ToASCII(string).
- *
- * @param src               Input UChar array containing label in Unicode.
- * @param srcLength         Number of UChars in src, or -1 if NUL-terminated.
- * @param dest              Output UChar array with ASCII (ACE encoded) label.
- * @param destCapacity      Size of dest.
- * @param options           A bit set of options:
- *
- *  - UIDNA_DEFAULT             Use default options, i.e., do not process unassigned code points
- *                              and do not use STD3 ASCII rules
- *                              If unassigned code points are found the operation fails with 
- *                              U_UNASSIGNED_ERROR error code.
- *
- *  - UIDNA_ALLOW_UNASSIGNED    Unassigned values can be converted to ASCII for query operations
- *                              If this option is set, the unassigned code points are in the input 
- *                              are treated as normal Unicode code points.
- *
- *  - UIDNA_USE_STD3_RULES      Use STD3 ASCII rules for host name syntax restrictions
- *                              If this option is set and the input does not satisfy STD3 rules,  
- *                              the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
- *
- * @param parseError        Pointer to UParseError struct to receive information on position 
- *                          of error if an error is encountered. Can be NULL.
- * @param status            ICU in/out error code parameter.
- *                          U_INVALID_CHAR_FOUND if src contains
- *                          unmatched single surrogates.
- *                          U_INDEX_OUTOFBOUNDS_ERROR if src contains
- *                          too many code points.
- *                          U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough
- * @return The length of the result string, if successful - or in case of a buffer overflow,
- *         in which case it will be greater than destCapacity.
- * @stable ICU 2.6
- */
-U_STABLE int32_t U_EXPORT2
-uidna_toASCII(const UChar* src, int32_t srcLength, 
-              UChar* dest, int32_t destCapacity,
-              int32_t options,
-              UParseError* parseError,
-              UErrorCode* status);
-
-
-/**
- * IDNA2003: This function implements the ToUnicode operation as defined in the IDNA RFC.
- * This operation is done on <b>single labels</b> before sending it to something that expects
- * Unicode names. A label is an individual part of a domain name. Labels are usually
- * separated by dots; for e.g. "www.example.com" is composed of 3 labels "www","example", and "com".
- *
- * @param src               Input UChar array containing ASCII (ACE encoded) label.
- * @param srcLength         Number of UChars in src, or -1 if NUL-terminated.
- * @param dest Output       Converted UChar array containing Unicode equivalent of label.
- * @param destCapacity      Size of dest.
- * @param options           A bit set of options:
- *
- *  - UIDNA_DEFAULT             Use default options, i.e., do not process unassigned code points
- *                              and do not use STD3 ASCII rules
- *                              If unassigned code points are found the operation fails with 
- *                              U_UNASSIGNED_ERROR error code.
- *
- *  - UIDNA_ALLOW_UNASSIGNED      Unassigned values can be converted to ASCII for query operations
- *                              If this option is set, the unassigned code points are in the input 
- *                              are treated as normal Unicode code points. <b> Note: </b> This option is 
- *                              required on toUnicode operation because the RFC mandates 
- *                              verification of decoded ACE input by applying toASCII and comparing
- *                              its output with source
- *
- *  - UIDNA_USE_STD3_RULES      Use STD3 ASCII rules for host name syntax restrictions
- *                              If this option is set and the input does not satisfy STD3 rules,  
- *                              the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
- *
- * @param parseError        Pointer to UParseError struct to receive information on position 
- *                          of error if an error is encountered. Can be NULL.
- * @param status            ICU in/out error code parameter.
- *                          U_INVALID_CHAR_FOUND if src contains
- *                          unmatched single surrogates.
- *                          U_INDEX_OUTOFBOUNDS_ERROR if src contains
- *                          too many code points.
- *                          U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough
- * @return The length of the result string, if successful - or in case of a buffer overflow,
- *         in which case it will be greater than destCapacity.
- * @stable ICU 2.6
- */
-U_STABLE int32_t U_EXPORT2
-uidna_toUnicode(const UChar* src, int32_t srcLength,
-                UChar* dest, int32_t destCapacity,
-                int32_t options,
-                UParseError* parseError,
-                UErrorCode* status);
-
-
-/**
- * IDNA2003: Convenience function that implements the IDNToASCII operation as defined in the IDNA RFC.
- * This operation is done on complete domain names, e.g: "www.example.com". 
- * It is important to note that this operation can fail. If it fails, then the input 
- * domain name cannot be used as an Internationalized Domain Name and the application
- * should have methods defined to deal with the failure.
- *
- * <b>Note:</b> IDNA RFC specifies that a conformant application should divide a domain name
- * into separate labels, decide whether to apply allowUnassigned and useSTD3ASCIIRules on each, 
- * and then convert. This function does not offer that level of granularity. The options once  
- * set will apply to all labels in the domain name
- *
- * @param src               Input UChar array containing IDN in Unicode.
- * @param srcLength         Number of UChars in src, or -1 if NUL-terminated.
- * @param dest              Output UChar array with ASCII (ACE encoded) IDN.
- * @param destCapacity      Size of dest.
- * @param options           A bit set of options:
- *
- *  - UIDNA_DEFAULT             Use default options, i.e., do not process unassigned code points
- *                              and do not use STD3 ASCII rules
- *                              If unassigned code points are found the operation fails with 
- *                              U_UNASSIGNED_CODE_POINT_FOUND error code.
- *
- *  - UIDNA_ALLOW_UNASSIGNED    Unassigned values can be converted to ASCII for query operations
- *                              If this option is set, the unassigned code points are in the input 
- *                              are treated as normal Unicode code points.
- *
- *  - UIDNA_USE_STD3_RULES      Use STD3 ASCII rules for host name syntax restrictions
- *                              If this option is set and the input does not satisfy STD3 rules,  
- *                              the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
- *
- * @param parseError        Pointer to UParseError struct to receive information on position 
- *                          of error if an error is encountered. Can be NULL.
- * @param status            ICU in/out error code parameter.
- *                          U_INVALID_CHAR_FOUND if src contains
- *                          unmatched single surrogates.
- *                          U_INDEX_OUTOFBOUNDS_ERROR if src contains
- *                          too many code points.
- *                          U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough
- * @return The length of the result string, if successful - or in case of a buffer overflow,
- *         in which case it will be greater than destCapacity.
- * @stable ICU 2.6
- */
-U_STABLE int32_t U_EXPORT2
-uidna_IDNToASCII(  const UChar* src, int32_t srcLength,
-                   UChar* dest, int32_t destCapacity,
-                   int32_t options,
-                   UParseError* parseError,
-                   UErrorCode* status);
-
-/**
- * IDNA2003: Convenience function that implements the IDNToUnicode operation as defined in the IDNA RFC.
- * This operation is done on complete domain names, e.g: "www.example.com". 
- *
- * <b>Note:</b> IDNA RFC specifies that a conformant application should divide a domain name
- * into separate labels, decide whether to apply allowUnassigned and useSTD3ASCIIRules on each, 
- * and then convert. This function does not offer that level of granularity. The options once  
- * set will apply to all labels in the domain name
- *
- * @param src               Input UChar array containing IDN in ASCII (ACE encoded) form.
- * @param srcLength         Number of UChars in src, or -1 if NUL-terminated.
- * @param dest Output       UChar array containing Unicode equivalent of source IDN.
- * @param destCapacity      Size of dest.
- * @param options           A bit set of options:
- *
- *  - UIDNA_DEFAULT             Use default options, i.e., do not process unassigned code points
- *                              and do not use STD3 ASCII rules
- *                              If unassigned code points are found the operation fails with 
- *                              U_UNASSIGNED_CODE_POINT_FOUND error code.
- *
- *  - UIDNA_ALLOW_UNASSIGNED    Unassigned values can be converted to ASCII for query operations
- *                              If this option is set, the unassigned code points are in the input 
- *                              are treated as normal Unicode code points.
- *
- *  - UIDNA_USE_STD3_RULES      Use STD3 ASCII rules for host name syntax restrictions
- *                              If this option is set and the input does not satisfy STD3 rules,  
- *                              the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
- *
- * @param parseError        Pointer to UParseError struct to receive information on position 
- *                          of error if an error is encountered. Can be NULL.
- * @param status            ICU in/out error code parameter.
- *                          U_INVALID_CHAR_FOUND if src contains
- *                          unmatched single surrogates.
- *                          U_INDEX_OUTOFBOUNDS_ERROR if src contains
- *                          too many code points.
- *                          U_BUFFER_OVERFLOW_ERROR if destCapacity is not enough
- * @return The length of the result string, if successful - or in case of a buffer overflow,
- *         in which case it will be greater than destCapacity.
- * @stable ICU 2.6
- */
-U_STABLE int32_t U_EXPORT2
-uidna_IDNToUnicode(  const UChar* src, int32_t srcLength,
-                     UChar* dest, int32_t destCapacity,
-                     int32_t options,
-                     UParseError* parseError,
-                     UErrorCode* status);
-
-/**
- * IDNA2003: Compare two IDN strings for equivalence.
- * This function splits the domain names into labels and compares them.
- * According to IDN RFC, whenever two labels are compared, they are 
- * considered equal if and only if their ASCII forms (obtained by 
- * applying toASCII) match using an case-insensitive ASCII comparison.
- * Two domain names are considered a match if and only if all labels 
- * match regardless of whether label separators match.
- *
- * @param s1                First source string.
- * @param length1           Length of first source string, or -1 if NUL-terminated.
- *
- * @param s2                Second source string.
- * @param length2           Length of second source string, or -1 if NUL-terminated.
- * @param options           A bit set of options:
- *
- *  - UIDNA_DEFAULT             Use default options, i.e., do not process unassigned code points
- *                              and do not use STD3 ASCII rules
- *                              If unassigned code points are found the operation fails with 
- *                              U_UNASSIGNED_CODE_POINT_FOUND error code.
- *
- *  - UIDNA_ALLOW_UNASSIGNED    Unassigned values can be converted to ASCII for query operations
- *                              If this option is set, the unassigned code points are in the input 
- *                              are treated as normal Unicode code points.
- *
- *  - UIDNA_USE_STD3_RULES      Use STD3 ASCII rules for host name syntax restrictions
- *                              If this option is set and the input does not satisfy STD3 rules,  
- *                              the operation will fail with U_IDNA_STD3_ASCII_RULES_ERROR
- *
- * @param status            ICU error code in/out parameter.
- *                          Must fulfill U_SUCCESS before the function call.
- * @return <0 or 0 or >0 as usual for string comparisons
- * @stable ICU 2.6
- */
-U_STABLE int32_t U_EXPORT2
-uidna_compare(  const UChar *s1, int32_t length1,
-                const UChar *s2, int32_t length2,
-                int32_t options,
-                UErrorCode* status);
-
-#endif /* #if !UCONFIG_NO_IDNA */
-
-#endif