ICU 69.1 69.1

uidna.h
Go to the documentation of this file.
1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 *
6 * Copyright (C) 2003-2014, International Business Machines
7 * Corporation and others. All Rights Reserved.
8 *
9 *******************************************************************************
10 * file name: uidna.h
11 * encoding: UTF-8
12 * tab size: 8 (not used)
13 * indentation:4
14 *
15 * created on: 2003feb1
16 * created by: Ram Viswanadha
17 */
18
19 #ifndef __UIDNA_H__
20 #define __UIDNA_H__
21
22 #include "unicode/utypes.h"
23
24 #if !UCONFIG_NO_IDNA
25
26 #include <stdbool.h>
27 #include "unicode/parseerr.h"
28
29 #if U_SHOW_CPLUSPLUS_API
30 #include "unicode/localpointer.h"
31 #endif // U_SHOW_CPLUSPLUS_API
32
47 /*
48 * IDNA option bit set values.
49 */
50 enum {
56 UIDNA_DEFAULT=0,
57 #ifndef U_HIDE_DEPRECATED_API
58
65 UIDNA_ALLOW_UNASSIGNED=1,
66 #endif /* U_HIDE_DEPRECATED_API */
67
74 UIDNA_USE_STD3_RULES=2,
82 UIDNA_CHECK_BIDI=4,
90 UIDNA_CHECK_CONTEXTJ=8,
99 UIDNA_NONTRANSITIONAL_TO_ASCII=0x10,
108 UIDNA_NONTRANSITIONAL_TO_UNICODE=0x20,
118 UIDNA_CHECK_CONTEXTO=0x40
119 };
120
125 struct UIDNA;
126 typedef struct UIDNA UIDNA;
145 U_CAPI UIDNA * U_EXPORT2
146 uidna_openUTS46(uint32_t options, UErrorCode *pErrorCode);
147
153 U_CAPI void U_EXPORT2
154 uidna_close(UIDNA *idna);
155
156 #if U_SHOW_CPLUSPLUS_API
157
158 U_NAMESPACE_BEGIN
159
169 U_DEFINE_LOCAL_OPEN_POINTER(LocalUIDNAPointer, UIDNA, uidna_close);
170
171 U_NAMESPACE_END
172
173 #endif
174
185 typedef struct UIDNAInfo {
187 int16_t size;
193 UBool isTransitionalDifferent;
194 UBool reservedB3;
200 uint32_t errors;
201 int32_t reservedI2;
202 int32_t reservedI3;
203 } UIDNAInfo;
204
209 #define UIDNA_INFO_INITIALIZER { \
210 (int16_t)sizeof(UIDNAInfo), \
211 false, false, \
212 0, 0, 0 }
213
237 U_CAPI int32_t U_EXPORT2
238 uidna_labelToASCII(const UIDNA *idna,
239 const UChar *label, int32_t length,
240 UChar *dest, int32_t capacity,
241 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
242
264 U_CAPI int32_t U_EXPORT2
265 uidna_labelToUnicode(const UIDNA *idna,
266 const UChar *label, int32_t length,
267 UChar *dest, int32_t capacity,
268 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
269
293 U_CAPI int32_t U_EXPORT2
294 uidna_nameToASCII(const UIDNA *idna,
295 const UChar *name, int32_t length,
296 UChar *dest, int32_t capacity,
297 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
298
320 U_CAPI int32_t U_EXPORT2
321 uidna_nameToUnicode(const UIDNA *idna,
322 const UChar *name, int32_t length,
323 UChar *dest, int32_t capacity,
324 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
325
326 /* UTF-8 versions of the processing methods --------------------------------- */
327
345 U_CAPI int32_t U_EXPORT2
346 uidna_labelToASCII_UTF8(const UIDNA *idna,
347 const char *label, int32_t length,
348 char *dest, int32_t capacity,
349 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
350
368 U_CAPI int32_t U_EXPORT2
369 uidna_labelToUnicodeUTF8(const UIDNA *idna,
370 const char *label, int32_t length,
371 char *dest, int32_t capacity,
372 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
373
391 U_CAPI int32_t U_EXPORT2
392 uidna_nameToASCII_UTF8(const UIDNA *idna,
393 const char *name, int32_t length,
394 char *dest, int32_t capacity,
395 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
396
414 U_CAPI int32_t U_EXPORT2
415 uidna_nameToUnicodeUTF8(const UIDNA *idna,
416 const char *name, int32_t length,
417 char *dest, int32_t capacity,
418 UIDNAInfo *pInfo, UErrorCode *pErrorCode);
419
420 /*
421 * IDNA error bit set values.
422 * When a domain name or label fails a processing step or does not meet the
423 * validity criteria, then one or more of these error bits are set.
424 */
425 enum {
430 UIDNA_ERROR_EMPTY_LABEL=1,
437 UIDNA_ERROR_LABEL_TOO_LONG=2,
444 UIDNA_ERROR_DOMAIN_NAME_TOO_LONG=4,
449 UIDNA_ERROR_LEADING_HYPHEN=8,
454 UIDNA_ERROR_TRAILING_HYPHEN=0x10,
459 UIDNA_ERROR_HYPHEN_3_4=0x20,
464 UIDNA_ERROR_LEADING_COMBINING_MARK=0x40,
469 UIDNA_ERROR_DISALLOWED=0x80,
475 UIDNA_ERROR_PUNYCODE=0x100,
481 UIDNA_ERROR_LABEL_HAS_DOT=0x200,
490 UIDNA_ERROR_INVALID_ACE_LABEL=0x400,
495 UIDNA_ERROR_BIDI=0x800,
500 UIDNA_ERROR_CONTEXTJ=0x1000,
507 UIDNA_ERROR_CONTEXTO_PUNCTUATION=0x2000,
513 UIDNA_ERROR_CONTEXTO_DIGITS=0x4000
514 };
515
516 #ifndef U_HIDE_DEPRECATED_API
517
518 /* IDNA2003 API ------------------------------------------------------------- */
519
579 U_DEPRECATED int32_t U_EXPORT2
580 uidna_toASCII(const UChar* src, int32_t srcLength,
581 UChar* dest, int32_t destCapacity,
582 int32_t options,
583 UParseError* parseError,
584 UErrorCode* status);
585
586
627 U_DEPRECATED int32_t U_EXPORT2
628 uidna_toUnicode(const UChar* src, int32_t srcLength,
629 UChar* dest, int32_t destCapacity,
630 int32_t options,
631 UParseError* parseError,
632 UErrorCode* status);
633
634
678 U_DEPRECATED int32_t U_EXPORT2
679 uidna_IDNToASCII( const UChar* src, int32_t srcLength,
680 UChar* dest, int32_t destCapacity,
681 int32_t options,
682 UParseError* parseError,
683 UErrorCode* status);
684
725 U_DEPRECATED int32_t U_EXPORT2
726 uidna_IDNToUnicode( const UChar* src, int32_t srcLength,
727 UChar* dest, int32_t destCapacity,
728 int32_t options,
729 UParseError* parseError,
730 UErrorCode* status);
731
766 U_DEPRECATED int32_t U_EXPORT2
767 uidna_compare( const UChar *s1, int32_t length1,
768 const UChar *s2, int32_t length2,
769 int32_t options,
770 UErrorCode* status);
771
772 #endif /* U_HIDE_DEPRECATED_API */
773
774 #endif /* #if !UCONFIG_NO_IDNA */
775
776 #endif
UIDNA_DEFAULT
@ UIDNA_DEFAULT
Default options value: None of the other options are set.
Definition: uidna.h:56
UIDNA_CHECK_CONTEXTO
@ UIDNA_CHECK_CONTEXTO
IDNA option to check for whether the input conforms to the CONTEXTO rules.
Definition: uidna.h:118
uidna_nameToASCII_UTF8
U_CAPI int32_t 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 ASCII form for DNS lookup.
UIDNAInfo
struct UIDNAInfo UIDNAInfo
Output container for IDNA processing errors.
parseerr.h
C API: Parse Error Information.
UIDNA_ALLOW_UNASSIGNED
@ UIDNA_ALLOW_UNASSIGNED
Option to allow unassigned code points in domain names and labels.
Definition: uidna.h:65
uidna_openUTS46
U_CAPI UIDNA * uidna_openUTS46(uint32_t options, UErrorCode *pErrorCode)
Returns a UIDNA instance which implements UTS #46.
UIDNA_ERROR_TRAILING_HYPHEN
@ UIDNA_ERROR_TRAILING_HYPHEN
A label ends with a hyphen-minus ('-').
Definition: uidna.h:454
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
UIDNA_ERROR_HYPHEN_3_4
@ UIDNA_ERROR_HYPHEN_3_4
A label contains hyphen-minus ('-') in the third and fourth positions.
Definition: uidna.h:459
U_DEPRECATED
#define U_DEPRECATED
This is used to declare a function as a deprecated public ICU C API
Definition: umachine.h:116
UIDNA_ERROR_LEADING_HYPHEN
@ UIDNA_ERROR_LEADING_HYPHEN
A label starts with a hyphen-minus ('-').
Definition: uidna.h:449
UIDNA_ERROR_LABEL_HAS_DOT
@ UIDNA_ERROR_LABEL_HAS_DOT
A label contains a dot=full stop.
Definition: uidna.h:481
uidna_labelToASCII_UTF8
U_CAPI int32_t 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 ASCII form for DNS lookup.
UParseError
A UParseError struct is used to returned detailed information about parsing errors.
Definition: parseerr.h:58
uidna_nameToUnicodeUTF8
U_CAPI int32_t uidna_nameToUnicodeUTF8(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.
UIDNA_NONTRANSITIONAL_TO_UNICODE
@ UIDNA_NONTRANSITIONAL_TO_UNICODE
IDNA option for nontransitional processing in ToUnicode().
Definition: uidna.h:108
UIDNAInfo::size
int16_t size
sizeof(UIDNAInfo)
Definition: uidna.h:187
UIDNA_ERROR_CONTEXTJ
@ UIDNA_ERROR_CONTEXTJ
A label does not meet the IDNA CONTEXTJ requirements.
Definition: uidna.h:500
UIDNAInfo::reservedB3
UBool reservedB3
Reserved field, do not use.
Definition: uidna.h:194
uidna_close
U_CAPI void uidna_close(UIDNA *idna)
Closes a UIDNA instance.
uidna_nameToUnicode
U_CAPI int32_t uidna_nameToUnicode(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.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
UIDNA_ERROR_EMPTY_LABEL
@ UIDNA_ERROR_EMPTY_LABEL
A non-final domain name label (or the whole domain name) is empty.
Definition: uidna.h:430
UIDNAInfo::reservedI2
int32_t reservedI2
Reserved field, do not use.
Definition: uidna.h:201
UIDNA_ERROR_DOMAIN_NAME_TOO_LONG
@ UIDNA_ERROR_DOMAIN_NAME_TOO_LONG
A domain name is longer than 255 bytes in its storage form.
Definition: uidna.h:444
uidna_IDNToUnicode
int32_t uidna_IDNToUnicode(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.
uidna_nameToASCII
U_CAPI int32_t 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 ASCII form for DNS lookup.
UIDNA_ERROR_BIDI
@ UIDNA_ERROR_BIDI
A label does not meet the IDNA BiDi requirements (for right-to-left characters).
Definition: uidna.h:495
UIDNA_ERROR_INVALID_ACE_LABEL
@ UIDNA_ERROR_INVALID_ACE_LABEL
An ACE label does not contain a valid label string.
Definition: uidna.h:490
UIDNA_NONTRANSITIONAL_TO_ASCII
@ UIDNA_NONTRANSITIONAL_TO_ASCII
IDNA option for nontransitional processing in ToASCII().
Definition: uidna.h:99
UIDNA
struct UIDNA UIDNA
C typedef for struct UIDNA.
Definition: uidna.h:126
uidna_IDNToASCII
int32_t 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 IDNToASCII operation as defined in the IDNA RFC.
uidna_toASCII
int32_t 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 ToASCII operation as defined in the IDNA RFC.
U_DEFINE_LOCAL_OPEN_POINTER
#define U_DEFINE_LOCAL_OPEN_POINTER(LocalPointerClassName, Type, closeFunction)
Definition: localpointer.h:550
uidna_labelToUnicodeUTF8
U_CAPI int32_t uidna_labelToUnicodeUTF8(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.
UIDNA_ERROR_LABEL_TOO_LONG
@ UIDNA_ERROR_LABEL_TOO_LONG
A domain name label is longer than 63 bytes.
Definition: uidna.h:437
LocalUIDNAPointer
UIDNA_ERROR_DISALLOWED
@ UIDNA_ERROR_DISALLOWED
A label or domain name contains disallowed characters.
Definition: uidna.h:469
UIDNA_CHECK_CONTEXTJ
@ UIDNA_CHECK_CONTEXTJ
IDNA option to check for whether the input conforms to the CONTEXTJ rules.
Definition: uidna.h:90
localpointer.h
C++ API: "Smart pointers" for use with and in ICU4C C++ code.
UIDNAInfo
Output container for IDNA processing errors.
Definition: uidna.h:185
uidna_toUnicode
int32_t uidna_toUnicode(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.
uidna_compare
int32_t uidna_compare(const UChar *s1, int32_t length1, const UChar *s2, int32_t length2, int32_t options, UErrorCode *status)
IDNA2003: Compare two IDN strings for equivalence.
UIDNAInfo::isTransitionalDifferent
UBool isTransitionalDifferent
Set to true if transitional and nontransitional processing produce different results.
Definition: uidna.h:193
UIDNA_ERROR_LEADING_COMBINING_MARK
@ UIDNA_ERROR_LEADING_COMBINING_MARK
A label starts with a combining mark.
Definition: uidna.h:464
UIDNAInfo::reservedI3
int32_t reservedI3
Reserved field, do not use.
Definition: uidna.h:202
UIDNA_ERROR_PUNYCODE
@ UIDNA_ERROR_PUNYCODE
A label starts with "xn--" but does not contain valid Punycode.
Definition: uidna.h:475
UIDNA_ERROR_CONTEXTO_PUNCTUATION
@ UIDNA_ERROR_CONTEXTO_PUNCTUATION
A label does not meet the IDNA CONTEXTO requirements for punctuation characters.
Definition: uidna.h:507
UChar
char16_t UChar
Definition: umachine.h:418
UIDNA_CHECK_BIDI
@ UIDNA_CHECK_BIDI
IDNA option to check for whether the input conforms to the BiDi rules.
Definition: uidna.h:82
UIDNA_ERROR_CONTEXTO_DIGITS
@ UIDNA_ERROR_CONTEXTO_DIGITS
A label does not meet the IDNA CONTEXTO requirements for digits.
Definition: uidna.h:513
U_CAPI
#define U_CAPI
This is used to declare a function as a public ICU C API.
Definition: umachine.h:110
uidna_labelToASCII
U_CAPI int32_t 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 ASCII form for DNS lookup.
uidna_labelToUnicode
U_CAPI int32_t uidna_labelToUnicode(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.
UIDNA_USE_STD3_RULES
@ UIDNA_USE_STD3_RULES
Option to check whether the input conforms to the STD3 ASCII rules, for example the restriction of la...
Definition: uidna.h:74
UIDNAInfo::errors
uint32_t errors
Bit set indicating IDNA processing errors.
Definition: uidna.h:200