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121 lines
4.3 KiB
121 lines
4.3 KiB
4 months ago
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// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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*
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* Copyright (C) 2002-2003, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: punycode.h
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* encoding: UTF-8
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2002jan31
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* created by: Markus W. Scherer
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*/
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/* This ICU code derived from: */
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/*
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punycode.c 0.4.0 (2001-Nov-17-Sat)
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http://www.cs.berkeley.edu/~amc/idn/
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Adam M. Costello
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http://www.nicemice.net/amc/
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*/
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#ifndef __PUNYCODE_H__
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#define __PUNYCODE_H__
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_IDNA
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/**
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* u_strToPunycode() converts Unicode to Punycode.
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*
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* The input string must not contain single, unpaired surrogates.
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* The output will be represented as an array of ASCII code points.
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*
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* The output string is NUL-terminated according to normal ICU
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* string output rules.
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*
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* @param src Input Unicode string.
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* This function handles a limited amount of code points
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* (the limit is >=64).
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* U_INDEX_OUTOFBOUNDS_ERROR is set if the limit is exceeded.
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* @param srcLength Number of UChars in src, or -1 if NUL-terminated.
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* @param dest Output Punycode array.
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* @param destCapacity Size of dest.
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* @param caseFlags Vector of boolean values, one per input UChar,
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* indicating that the corresponding character is to be
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* marked for the decoder optionally
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* uppercasing (true) or lowercasing (false)
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* the character.
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* ASCII characters are output directly in the case as marked.
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* Flags corresponding to trail surrogates are ignored.
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* If caseFlags==NULL then input characters are not
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* case-mapped.
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* @param pErrorCode ICU in/out error code parameter.
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* U_INVALID_CHAR_FOUND if src contains
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* unmatched single surrogates.
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* U_INDEX_OUTOFBOUNDS_ERROR if src contains
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* too many code points.
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* @return Number of ASCII characters in puny.
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*
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* @see u_strFromPunycode
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*/
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U_CAPI int32_t
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u_strToPunycode(const UChar *src, int32_t srcLength,
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UChar *dest, int32_t destCapacity,
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const UBool *caseFlags,
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UErrorCode *pErrorCode);
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/**
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* u_strFromPunycode() converts Punycode to Unicode.
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* The Unicode string will be at most as long (in UChars)
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* than the Punycode string (in chars).
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*
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* @param src Input Punycode string.
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* @param srcLength Length of puny, or -1 if NUL-terminated
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* @param dest Output Unicode string buffer.
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* @param destCapacity Size of dest in number of UChars,
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* and of caseFlags in numbers of UBools.
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* @param caseFlags Output array for case flags as
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* defined by the Punycode string.
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* The caller should uppercase (true) or lowercase (FASLE)
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* the corresponding character in dest.
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* For supplementary characters, only the lead surrogate
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* is marked, and false is stored for the trail surrogate.
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* This is redundant and not necessary for ASCII characters
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* because they are already in the case indicated.
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* Can be NULL if the case flags are not needed.
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* @param pErrorCode ICU in/out error code parameter.
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* U_INVALID_CHAR_FOUND if a non-ASCII character
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* precedes the last delimiter ('-'),
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* or if an invalid character (not a-zA-Z0-9) is found
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* after the last delimiter.
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* U_ILLEGAL_CHAR_FOUND if the delta sequence is ill-formed.
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* @return Number of UChars written to dest.
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*
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* @see u_strToPunycode
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*/
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U_CAPI int32_t
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u_strFromPunycode(const UChar *src, int32_t srcLength,
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UChar *dest, int32_t destCapacity,
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UBool *caseFlags,
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UErrorCode *pErrorCode);
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#endif /* #if !UCONFIG_NO_IDNA */
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#endif
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/*
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* Hey, Emacs, please set the following:
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*
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* Local Variables:
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* indent-tabs-mode: nil
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* End:
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*
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*/
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