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// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ******************************************************************************* * * Copyright (C) 2002-2012, International Business Machines * Corporation and others. All Rights Reserved. * ******************************************************************************* * file name: utf_old.h * encoding: UTF-8 * tab size: 8 (not used) * indentation:4 * * created on: 2002sep21 * created by: Markus W. Scherer */ /** * \file * \brief C API: Deprecated macros for Unicode string handling * * The macros in utf_old.h are all deprecated and their use discouraged. * Some of the design principles behind the set of UTF macros * have changed or proved impractical. * Almost all of the old "UTF macros" are at least renamed. * If you are looking for a new equivalent to an old macro, please see the * comment at the old one. * * Brief summary of reasons for deprecation: * - Switch on UTF_SIZE (selection of UTF-8/16/32 default string processing) * was impractical. * - Switch on UTF_SAFE etc. (selection of unsafe/safe/strict default string processing) * was of little use and impractical. * - Whole classes of macros became obsolete outside of the UTF_SIZE/UTF_SAFE * selection framework: UTF32_ macros (all trivial) * and UTF_ default and intermediate macros (all aliases). * - The selection framework also caused many macro aliases. * - Change in Unicode standard: "irregular" sequences (3.0) became illegal (3.2). * - Change of language in Unicode standard: * Growing distinction between internal x-bit Unicode strings and external UTF-x * forms, with the former more lenient. * Suggests renaming of UTF16_ macros to U16_. * - The prefix "UTF_" without a width number confused some users. * - "Safe" append macros needed the addition of an error indicator output. * - "Safe" UTF-8 macros used legitimate (if rarely used) code point values * to indicate error conditions. * - The use of the "_CHAR" infix for code point operations confused some users. * * More details: * * Until ICU 2.2, utf.h theoretically allowed to choose among UTF-8/16/32 * for string processing, and among unsafe/safe/strict default macros for that. * * It proved nearly impossible to write non-trivial, high-performance code * that is UTF-generic. * Unsafe default macros would be dangerous for default string processing, * and the main reason for the "strict" versions disappeared: * Between Unicode 3.0 and 3.2 all "irregular" UTF-8 sequences became illegal. * The only other conditions that "strict" checked for were non-characters, * which are valid during processing. Only during text input/output should they * be checked, and at that time other well-formedness checks may be * necessary or useful as well. * This can still be done by using U16_NEXT and U_IS_UNICODE_NONCHAR * or U_IS_UNICODE_CHAR. * * The old UTF8_..._SAFE macros also used some normal Unicode code points * to indicate malformed sequences. * The new UTF8_ macros without suffix use negative values instead. * * The entire contents of utf32.h was moved here without replacement * because all those macros were trivial and * were meaningful only in the framework of choosing the UTF size. * * See Jitterbug 2150 and its discussion on the ICU mailing list * in September 2002. * * <hr> * * <em>Obsolete part</em> of pre-ICU 2.4 utf.h file documentation: * * <p>The original concept for these files was for ICU to allow * in principle to set which UTF (UTF-8/16/32) is used internally * by defining UTF_SIZE to either 8, 16, or 32. utf.h would then define the UChar type * accordingly. UTF-16 was the default.</p> * * <p>This concept has been abandoned. * A lot of the ICU source code assumes UChar strings are in UTF-16. * This is especially true for low-level code like * conversion, normalization, and collation. * The utf.h header enforces the default of UTF-16. * The UTF-8 and UTF-32 macros remain for now for completeness and backward compatibility.</p> * * <p>Accordingly, utf.h defines UChar to be an unsigned 16-bit integer. If this matches wchar_t, then * UChar is defined to be exactly wchar_t, otherwise uint16_t.</p> * * <p>UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit * Unicode code point (Unicode scalar value, 0..0x10ffff). * Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as * the definition of UChar. For details see the documentation for UChar32 itself.</p> * * <p>utf.h also defines a number of C macros for handling single Unicode code points and * for using UTF Unicode strings. It includes utf8.h, utf16.h, and utf32.h for the actual * implementations of those macros and then aliases one set of them (for UTF-16) for general use. * The UTF-specific macros have the UTF size in the macro name prefixes (UTF16_...), while * the general alias macros always begin with UTF_...</p> * * <p>Many string operations can be done with or without error checking. * Where such a distinction is useful, there are two versions of the macros, "unsafe" and "safe" * ones with ..._UNSAFE and ..._SAFE suffixes. The unsafe macros are fast but may cause * program failures if the strings are not well-formed. The safe macros have an additional, boolean * parameter "strict". If strict is FALSE, then only illegal sequences are detected. * Otherwise, irregular sequences and non-characters are detected as well (like single surrogates). * Safe macros return special error code points for illegal/irregular sequences: * Typically, U+ffff, or values that would result in a code unit sequence of the same length * as the erroneous input sequence.<br> * Note that _UNSAFE macros have fewer parameters: They do not have the strictness parameter, and * they do not have start/length parameters for boundary checking.</p> * * <p>Here, the macros are aliased in two steps: * In the first step, the UTF-specific macros with UTF16_ prefix and _UNSAFE and _SAFE suffixes are * aliased according to the UTF_SIZE to macros with UTF_ prefix and the same suffixes and signatures. * Then, in a second step, the default, general alias macros are set to use either the unsafe or * the safe/not strict (default) or the safe/strict macro; * these general macros do not have a strictness parameter.</p> * * <p>It is possible to change the default choice for the general alias macros to be unsafe, safe/not strict or safe/strict. * The default is safe/not strict. It is not recommended to select the unsafe macros as the basis for * Unicode string handling in ICU! To select this, define UTF_SAFE, UTF_STRICT, or UTF_UNSAFE.</p> * * <p>For general use, one should use the default, general macros with UTF_ prefix and no _SAFE/_UNSAFE suffix. * Only in some cases it may be necessary to control the choice of macro directly and use a less generic alias. * For example, if it can be assumed that a string is well-formed and the index will stay within the bounds, * then the _UNSAFE version may be used. * If a UTF-8 string is to be processed, then the macros with UTF8_ prefixes need to be used.</p> * * <hr> * * Deprecated ICU 2.4. Use the macros in utf.h, utf16.h, utf8.h instead. */ #ifndef __UTF_OLD_H__ #define __UTF_OLD_H__ #include "unicode/utf.h" #include "unicode/utf8.h" #include "unicode/utf16.h" /** * \def U_HIDE_OBSOLETE_UTF_OLD_H * * Hides the obsolete definitions in unicode/utf_old.h. * Recommended to be set to 1 at compile time to make sure * the long-deprecated macros are no longer used. * * For reasons for the deprecation see the utf_old.h file comments. * * @internal */ #ifndef U_HIDE_OBSOLETE_UTF_OLD_H # define U_HIDE_OBSOLETE_UTF_OLD_H 0 #endif #if !defined(U_HIDE_DEPRECATED_API) && !U_HIDE_OBSOLETE_UTF_OLD_H /* Formerly utf.h, part 1 --------------------------------------------------- */ #ifdef U_USE_UTF_DEPRECATES /** * Unicode string and array offset and index type. * ICU always counts Unicode code units (UChars) for * string offsets, indexes, and lengths, not Unicode code points. * * @obsolete ICU 2.6. Use int32_t directly instead since this API will be removed in that release. */ typedef int32_t UTextOffset; #endif /** Number of bits in a Unicode string code unit - ICU uses 16-bit Unicode. @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_SIZE 16 /** * The default choice for general Unicode string macros is to use the ..._SAFE macro implementations * with strict=FALSE. * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_SAFE /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #undef UTF_UNSAFE /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #undef UTF_STRICT /** * UTF8_ERROR_VALUE_1 and UTF8_ERROR_VALUE_2 are special error values for UTF-8, * which need 1 or 2 bytes in UTF-8: * \code * U+0015 = NAK = Negative Acknowledge, C0 control character * U+009f = highest C1 control character * \endcode * * These are used by UTF8_..._SAFE macros so that they can return an error value * that needs the same number of code units (bytes) as were seen by * a macro. They should be tested with UTF_IS_ERROR() or UTF_IS_VALID(). * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF8_ERROR_VALUE_1 0x15 /** * See documentation on UTF8_ERROR_VALUE_1 for details. * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF8_ERROR_VALUE_2 0x9f /** * Error value for all UTFs. This code point value will be set by macros with error * checking if an error is detected. * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_ERROR_VALUE 0xffff /** * Is a given 32-bit code an error value * as returned by one of the macros for any UTF? * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_IS_ERROR(c) \ (((c)&0xfffe)==0xfffe || (c)==UTF8_ERROR_VALUE_1 || (c)==UTF8_ERROR_VALUE_2) /** * This is a combined macro: Is c a valid Unicode value _and_ not an error code? * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_IS_VALID(c) \ (UTF_IS_UNICODE_CHAR(c) && \ (c)!=UTF8_ERROR_VALUE_1 && (c)!=UTF8_ERROR_VALUE_2) /** * Is this code unit or code point a surrogate (U+d800..U+dfff)? * @deprecated ICU 2.4. Renamed to U_IS_SURROGATE and U16_IS_SURROGATE, see utf_old.h. */ #define UTF_IS_SURROGATE(uchar) (((uchar)&0xfffff800)==0xd800) /** * Is a given 32-bit code point a Unicode noncharacter? * * @deprecated ICU 2.4. Renamed to U_IS_UNICODE_NONCHAR, see utf_old.h. */ #define UTF_IS_UNICODE_NONCHAR(c) \ ((c)>=0xfdd0 && \ ((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \ (uint32_t)(c)<=0x10ffff) /** * Is a given 32-bit value a Unicode code point value (0..U+10ffff) * that can be assigned a character? * * Code points that are not characters include: * - single surrogate code points (U+d800..U+dfff, 2048 code points) * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points) * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points) * - the highest Unicode code point value is U+10ffff * * This means that all code points below U+d800 are character code points, * and that boundary is tested first for performance. * * @deprecated ICU 2.4. Renamed to U_IS_UNICODE_CHAR, see utf_old.h. */ #define UTF_IS_UNICODE_CHAR(c) \ ((uint32_t)(c)<0xd800 || \ ((uint32_t)(c)>0xdfff && \ (uint32_t)(c)<=0x10ffff && \ !UTF_IS_UNICODE_NONCHAR(c))) /* Formerly utf8.h ---------------------------------------------------------- */ /** * \var utf8_countTrailBytes * Internal array with numbers of trail bytes for any given byte used in * lead byte position. * * This is internal since it is not meant to be called directly by external clients; * however it is called by public macros in this file and thus must remain stable, * and should not be hidden when other internal functions are hidden (otherwise * public macros would fail to compile). * @internal */ #ifdef U_UTF8_IMPL // No forward declaration if compiling utf_impl.cpp, which defines utf8_countTrailBytes. #elif defined(U_STATIC_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) U_CFUNC const uint8_t utf8_countTrailBytes[]; #else U_CFUNC U_IMPORT const uint8_t utf8_countTrailBytes[]; /* U_IMPORT2? */ /*U_IMPORT*/ #endif /** * Count the trail bytes for a UTF-8 lead byte. * @deprecated ICU 2.4. Renamed to U8_COUNT_TRAIL_BYTES, see utf_old.h. */ #define UTF8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte]) /** * Mask a UTF-8 lead byte, leave only the lower bits that form part of the code point value. * @deprecated ICU 2.4. Renamed to U8_MASK_LEAD_BYTE, see utf_old.h. */ #define UTF8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1) /** Is this this code point a single code unit (byte)? @deprecated ICU 2.4. Renamed to U8_IS_SINGLE, see utf_old.h. */ #define UTF8_IS_SINGLE(uchar) (((uchar)&0x80)==0) /** Is this this code unit the lead code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_LEAD, see utf_old.h. */ #define UTF8_IS_LEAD(uchar) ((uint8_t)((uchar)-0xc0)<0x3e) /** Is this this code unit a trailing code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_TRAIL, see utf_old.h. */ #define UTF8_IS_TRAIL(uchar) (((uchar)&0xc0)==0x80) /** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U8_LENGTH or test ((uint32_t)(c)>0x7f) instead, see utf_old.h. */ #define UTF8_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0x7f) /** * Given the lead character, how many bytes are taken by this code point. * ICU does not deal with code points >0x10ffff * unless necessary for advancing in the byte stream. * * These length macros take into account that for values >0x10ffff * the UTF8_APPEND_CHAR_SAFE macros would write the error code point 0xffff * with 3 bytes. * Code point comparisons need to be in uint32_t because UChar32 * may be a signed type, and negative values must be recognized. * * @deprecated ICU 2.4. Use U8_LENGTH instead, see utf.h. */ #if 1 # define UTF8_CHAR_LENGTH(c) \ ((uint32_t)(c)<=0x7f ? 1 : \ ((uint32_t)(c)<=0x7ff ? 2 : \ ((uint32_t)((c)-0x10000)>0xfffff ? 3 : 4) \ ) \ ) #else # define UTF8_CHAR_LENGTH(c) \ ((uint32_t)(c)<=0x7f ? 1 : \ ((uint32_t)(c)<=0x7ff ? 2 : \ ((uint32_t)(c)<=0xffff ? 3 : \ ((uint32_t)(c)<=0x10ffff ? 4 : \ ((uint32_t)(c)<=0x3ffffff ? 5 : \ ((uint32_t)(c)<=0x7fffffff ? 6 : 3) \ ) \ ) \ ) \ ) \ ) #endif /** The maximum number of bytes per code point. @deprecated ICU 2.4. Renamed to U8_MAX_LENGTH, see utf_old.h. */ #define UTF8_MAX_CHAR_LENGTH 4 /** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF8_ARRAY_SIZE(size) ((5*(size))/2) /** @deprecated ICU 2.4. Renamed to U8_GET_UNSAFE, see utf_old.h. */ #define UTF8_GET_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ int32_t _utf8_get_char_unsafe_index=(int32_t)(i); \ UTF8_SET_CHAR_START_UNSAFE(s, _utf8_get_char_unsafe_index); \ UTF8_NEXT_CHAR_UNSAFE(s, _utf8_get_char_unsafe_index, c); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U8_GET instead, see utf_old.h. */ #define UTF8_GET_CHAR_SAFE(s, start, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ int32_t _utf8_get_char_safe_index=(int32_t)(i); \ UTF8_SET_CHAR_START_SAFE(s, start, _utf8_get_char_safe_index); \ UTF8_NEXT_CHAR_SAFE(s, _utf8_get_char_safe_index, length, c, strict); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_NEXT_UNSAFE, see utf_old.h. */ #define UTF8_NEXT_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ if((uint8_t)((c)-0xc0)<0x35) { \ uint8_t __count=UTF8_COUNT_TRAIL_BYTES(c); \ UTF8_MASK_LEAD_BYTE(c, __count); \ switch(__count) { \ /* each following branch falls through to the next one */ \ case 3: \ (c)=((c)<<6)|((s)[(i)++]&0x3f); \ case 2: \ (c)=((c)<<6)|((s)[(i)++]&0x3f); \ case 1: \ (c)=((c)<<6)|((s)[(i)++]&0x3f); \ /* no other branches to optimize switch() */ \ break; \ } \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_APPEND_UNSAFE, see utf_old.h. */ #define UTF8_APPEND_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ if((uint32_t)(c)<=0x7f) { \ (s)[(i)++]=(uint8_t)(c); \ } else { \ if((uint32_t)(c)<=0x7ff) { \ (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \ } else { \ if((uint32_t)(c)<=0xffff) { \ (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \ } else { \ (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \ (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \ } \ (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \ } \ (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_FWD_1_UNSAFE, see utf_old.h. */ #define UTF8_FWD_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ (i)+=1+UTF8_COUNT_TRAIL_BYTES((s)[i]); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_FWD_N_UNSAFE, see utf_old.h. */ #define UTF8_FWD_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ int32_t __N=(n); \ while(__N>0) { \ UTF8_FWD_1_UNSAFE(s, i); \ --__N; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_SET_CP_START_UNSAFE, see utf_old.h. */ #define UTF8_SET_CHAR_START_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ while(UTF8_IS_TRAIL((s)[i])) { --(i); } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U8_NEXT instead, see utf_old.h. */ #define UTF8_NEXT_CHAR_SAFE(s, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ if((c)>=0x80) { \ if(UTF8_IS_LEAD(c)) { \ (c)=utf8_nextCharSafeBody(s, &(i), (int32_t)(length), c, strict); \ } else { \ (c)=UTF8_ERROR_VALUE_1; \ } \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U8_APPEND instead, see utf_old.h. */ #define UTF8_APPEND_CHAR_SAFE(s, i, length, c) UPRV_BLOCK_MACRO_BEGIN { \ if((uint32_t)(c)<=0x7f) { \ (s)[(i)++]=(uint8_t)(c); \ } else { \ (i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(length), c, NULL); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_FWD_1, see utf_old.h. */ #define UTF8_FWD_1_SAFE(s, i, length) U8_FWD_1(s, i, length) /** @deprecated ICU 2.4. Renamed to U8_FWD_N, see utf_old.h. */ #define UTF8_FWD_N_SAFE(s, i, length, n) U8_FWD_N(s, i, length, n) /** @deprecated ICU 2.4. Renamed to U8_SET_CP_START, see utf_old.h. */ #define UTF8_SET_CHAR_START_SAFE(s, start, i) U8_SET_CP_START(s, start, i) /** @deprecated ICU 2.4. Renamed to U8_PREV_UNSAFE, see utf_old.h. */ #define UTF8_PREV_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ if(UTF8_IS_TRAIL(c)) { \ uint8_t __b, __count=1, __shift=6; \ \ /* c is a trail byte */ \ (c)&=0x3f; \ for(;;) { \ __b=(s)[--(i)]; \ if(__b>=0xc0) { \ UTF8_MASK_LEAD_BYTE(__b, __count); \ (c)|=(UChar32)__b<<__shift; \ break; \ } else { \ (c)|=(UChar32)(__b&0x3f)<<__shift; \ ++__count; \ __shift+=6; \ } \ } \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_BACK_1_UNSAFE, see utf_old.h. */ #define UTF8_BACK_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ while(UTF8_IS_TRAIL((s)[--(i)])) {} \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_BACK_N_UNSAFE, see utf_old.h. */ #define UTF8_BACK_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ int32_t __N=(n); \ while(__N>0) { \ UTF8_BACK_1_UNSAFE(s, i); \ --__N; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT_UNSAFE, see utf_old.h. */ #define UTF8_SET_CHAR_LIMIT_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ UTF8_BACK_1_UNSAFE(s, i); \ UTF8_FWD_1_UNSAFE(s, i); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U8_PREV instead, see utf_old.h. */ #define UTF8_PREV_CHAR_SAFE(s, start, i, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ if((c)>=0x80) { \ if((c)<=0xbf) { \ (c)=utf8_prevCharSafeBody(s, start, &(i), c, strict); \ } else { \ (c)=UTF8_ERROR_VALUE_1; \ } \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U8_BACK_1, see utf_old.h. */ #define UTF8_BACK_1_SAFE(s, start, i) U8_BACK_1(s, start, i) /** @deprecated ICU 2.4. Renamed to U8_BACK_N, see utf_old.h. */ #define UTF8_BACK_N_SAFE(s, start, i, n) U8_BACK_N(s, start, i, n) /** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT, see utf_old.h. */ #define UTF8_SET_CHAR_LIMIT_SAFE(s, start, i, length) U8_SET_CP_LIMIT(s, start, i, length) /* Formerly utf16.h --------------------------------------------------------- */ /** Is uchar a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h. */ #define UTF_IS_FIRST_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xd800) /** Is uchar a second/trail surrogate? @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h. */ #define UTF_IS_SECOND_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xdc00) /** Assuming c is a surrogate, is it a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_SURROGATE_LEAD and U16_IS_SURROGATE_LEAD, see utf_old.h. */ #define UTF_IS_SURROGATE_FIRST(c) (((c)&0x400)==0) /** Helper constant for UTF16_GET_PAIR_VALUE. @deprecated ICU 2.4. Renamed to U16_SURROGATE_OFFSET, see utf_old.h. */ #define UTF_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000) /** Get the UTF-32 value from the surrogate code units. @deprecated ICU 2.4. Renamed to U16_GET_SUPPLEMENTARY, see utf_old.h. */ #define UTF16_GET_PAIR_VALUE(first, second) \ (((first)<<10UL)+(second)-UTF_SURROGATE_OFFSET) /** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */ #define UTF_FIRST_SURROGATE(supplementary) (UChar)(((supplementary)>>10)+0xd7c0) /** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */ #define UTF_SECOND_SURROGATE(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00) /** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */ #define UTF16_LEAD(supplementary) UTF_FIRST_SURROGATE(supplementary) /** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */ #define UTF16_TRAIL(supplementary) UTF_SECOND_SURROGATE(supplementary) /** @deprecated ICU 2.4. Renamed to U16_IS_SINGLE, see utf_old.h. */ #define UTF16_IS_SINGLE(uchar) !UTF_IS_SURROGATE(uchar) /** @deprecated ICU 2.4. Renamed to U16_IS_LEAD, see utf_old.h. */ #define UTF16_IS_LEAD(uchar) UTF_IS_FIRST_SURROGATE(uchar) /** @deprecated ICU 2.4. Renamed to U16_IS_TRAIL, see utf_old.h. */ #define UTF16_IS_TRAIL(uchar) UTF_IS_SECOND_SURROGATE(uchar) /** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead, see utf_old.h. */ #define UTF16_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0xffff) /** @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h. */ #define UTF16_CHAR_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2) /** @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h. */ #define UTF16_MAX_CHAR_LENGTH 2 /** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF16_ARRAY_SIZE(size) (size) /** * Get a single code point from an offset that points to any * of the code units that belong to that code point. * Assume 0<=i<length. * * This could be used for iteration together with * UTF16_CHAR_LENGTH() and UTF_IS_ERROR(), * but the use of UTF16_NEXT_CHAR[_UNSAFE]() and * UTF16_PREV_CHAR[_UNSAFE]() is more efficient for that. * @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h. */ #define UTF16_GET_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[i]; \ if(UTF_IS_SURROGATE(c)) { \ if(UTF_IS_SURROGATE_FIRST(c)) { \ (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)+1]); \ } else { \ (c)=UTF16_GET_PAIR_VALUE((s)[(i)-1], (c)); \ } \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */ #define UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[i]; \ if(UTF_IS_SURROGATE(c)) { \ uint16_t __c2; \ if(UTF_IS_SURROGATE_FIRST(c)) { \ if((i)+1<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)+1])) { \ (c)=UTF16_GET_PAIR_VALUE((c), __c2); \ /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \ } else if(strict) {\ /* unmatched first surrogate */ \ (c)=UTF_ERROR_VALUE; \ } \ } else { \ if((i)-1>=(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \ (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \ /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \ } else if(strict) {\ /* unmatched second surrogate */ \ (c)=UTF_ERROR_VALUE; \ } \ } \ } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */ #define UTF16_NEXT_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ if(UTF_IS_FIRST_SURROGATE(c)) { \ (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)++]); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */ #define UTF16_APPEND_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ if((uint32_t)(c)<=0xffff) { \ (s)[(i)++]=(uint16_t)(c); \ } else { \ (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \ (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */ #define UTF16_FWD_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ if(UTF_IS_FIRST_SURROGATE((s)[(i)++])) { \ ++(i); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */ #define UTF16_FWD_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ int32_t __N=(n); \ while(__N>0) { \ UTF16_FWD_1_UNSAFE(s, i); \ --__N; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */ #define UTF16_SET_CHAR_START_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ if(UTF_IS_SECOND_SURROGATE((s)[i])) { \ --(i); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */ #define UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ if(UTF_IS_FIRST_SURROGATE(c)) { \ uint16_t __c2; \ if((i)<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)])) { \ ++(i); \ (c)=UTF16_GET_PAIR_VALUE((c), __c2); \ /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \ } else if(strict) {\ /* unmatched first surrogate */ \ (c)=UTF_ERROR_VALUE; \ } \ } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \ /* unmatched second surrogate or other non-character */ \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */ #define UTF16_APPEND_CHAR_SAFE(s, i, length, c) UPRV_BLOCK_MACRO_BEGIN { \ if((uint32_t)(c)<=0xffff) { \ (s)[(i)++]=(uint16_t)(c); \ } else if((uint32_t)(c)<=0x10ffff) { \ if((i)+1<(length)) { \ (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \ (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \ } else /* not enough space */ { \ (s)[(i)++]=UTF_ERROR_VALUE; \ } \ } else /* c>0x10ffff, write error value */ { \ (s)[(i)++]=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */ #define UTF16_FWD_1_SAFE(s, i, length) U16_FWD_1(s, i, length) /** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */ #define UTF16_FWD_N_SAFE(s, i, length, n) U16_FWD_N(s, i, length, n) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */ #define UTF16_SET_CHAR_START_SAFE(s, start, i) U16_SET_CP_START(s, start, i) /** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */ #define UTF16_PREV_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ if(UTF_IS_SECOND_SURROGATE(c)) { \ (c)=UTF16_GET_PAIR_VALUE((s)[--(i)], (c)); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */ #define UTF16_BACK_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ if(UTF_IS_SECOND_SURROGATE((s)[--(i)])) { \ --(i); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */ #define UTF16_BACK_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ int32_t __N=(n); \ while(__N>0) { \ UTF16_BACK_1_UNSAFE(s, i); \ --__N; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */ #define UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ if(UTF_IS_FIRST_SURROGATE((s)[(i)-1])) { \ ++(i); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */ #define UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ if(UTF_IS_SECOND_SURROGATE(c)) { \ uint16_t __c2; \ if((i)>(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \ --(i); \ (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \ /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \ } else if(strict) {\ /* unmatched second surrogate */ \ (c)=UTF_ERROR_VALUE; \ } \ } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \ /* unmatched first surrogate or other non-character */ \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */ #define UTF16_BACK_1_SAFE(s, start, i) U16_BACK_1(s, start, i) /** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */ #define UTF16_BACK_N_SAFE(s, start, i, n) U16_BACK_N(s, start, i, n) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */ #define UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length) /* Formerly utf32.h --------------------------------------------------------- */ /* * Old documentation: * * This file defines macros to deal with UTF-32 code units and code points. * Signatures and semantics are the same as for the similarly named macros * in utf16.h. * utf32.h is included by utf.h after unicode/umachine.h</p> * and some common definitions. * <p><b>Usage:</b> ICU coding guidelines for if() statements should be followed when using these macros. * Compound statements (curly braces {}) must be used for if-else-while... * bodies and all macro statements should be terminated with semicolon.</p> */ /* internal definitions ----------------------------------------------------- */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_IS_SAFE(c, strict) \ (!(strict) ? \ (uint32_t)(c)<=0x10ffff : \ UTF_IS_UNICODE_CHAR(c)) /* * For the semantics of all of these macros, see utf16.h. * The UTF-32 versions are trivial because any code point is * encoded using exactly one code unit. */ /* single-code point definitions -------------------------------------------- */ /* classes of code unit values */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_IS_SINGLE(uchar) 1 /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_IS_LEAD(uchar) 0 /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_IS_TRAIL(uchar) 0 /* number of code units per code point */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_NEED_MULTIPLE_UCHAR(c) 0 /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_CHAR_LENGTH(c) 1 /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_MAX_CHAR_LENGTH 1 /* average number of code units compared to UTF-16 */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_ARRAY_SIZE(size) (size) /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_GET_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[i]; \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_GET_CHAR_SAFE(s, start, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[i]; \ if(!UTF32_IS_SAFE(c, strict)) { \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /* definitions with forward iteration --------------------------------------- */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_NEXT_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_APPEND_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (s)[(i)++]=(c); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_FWD_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ ++(i); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_FWD_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ (i)+=(n); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_SET_CHAR_START_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_NEXT_CHAR_SAFE(s, i, length, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[(i)++]; \ if(!UTF32_IS_SAFE(c, strict)) { \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_APPEND_CHAR_SAFE(s, i, length, c) UPRV_BLOCK_MACRO_BEGIN { \ if((uint32_t)(c)<=0x10ffff) { \ (s)[(i)++]=(c); \ } else /* c>0x10ffff, write 0xfffd */ { \ (s)[(i)++]=0xfffd; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_FWD_1_SAFE(s, i, length) UPRV_BLOCK_MACRO_BEGIN { \ ++(i); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_FWD_N_SAFE(s, i, length, n) UPRV_BLOCK_MACRO_BEGIN { \ if(((i)+=(n))>(length)) { \ (i)=(length); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_SET_CHAR_START_SAFE(s, start, i) UPRV_BLOCK_MACRO_BEGIN { \ } UPRV_BLOCK_MACRO_END /* definitions with backward iteration -------------------------------------- */ /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_PREV_CHAR_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_BACK_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ --(i); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_BACK_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \ (i)-=(n); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_SET_CHAR_LIMIT_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_PREV_CHAR_SAFE(s, start, i, c, strict) UPRV_BLOCK_MACRO_BEGIN { \ (c)=(s)[--(i)]; \ if(!UTF32_IS_SAFE(c, strict)) { \ (c)=UTF_ERROR_VALUE; \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_BACK_1_SAFE(s, start, i) UPRV_BLOCK_MACRO_BEGIN { \ --(i); \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_BACK_N_SAFE(s, start, i, n) UPRV_BLOCK_MACRO_BEGIN { \ (i)-=(n); \ if((i)<(start)) { \ (i)=(start); \ } \ } UPRV_BLOCK_MACRO_END /** @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF32_SET_CHAR_LIMIT_SAFE(s, i, length) UPRV_BLOCK_MACRO_BEGIN { \ } UPRV_BLOCK_MACRO_END /* Formerly utf.h, part 2 --------------------------------------------------- */ /** * Estimate the number of code units for a string based on the number of UTF-16 code units. * * @deprecated ICU 2.4. Obsolete, see utf_old.h. */ #define UTF_ARRAY_SIZE(size) UTF16_ARRAY_SIZE(size) /** @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h. */ #define UTF_GET_CHAR_UNSAFE(s, i, c) UTF16_GET_CHAR_UNSAFE(s, i, c) /** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */ #define UTF_GET_CHAR_SAFE(s, start, i, length, c, strict) UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) /** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */ #define UTF_NEXT_CHAR_UNSAFE(s, i, c) UTF16_NEXT_CHAR_UNSAFE(s, i, c) /** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */ #define UTF_NEXT_CHAR_SAFE(s, i, length, c, strict) UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) /** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */ #define UTF_APPEND_CHAR_UNSAFE(s, i, c) UTF16_APPEND_CHAR_UNSAFE(s, i, c) /** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */ #define UTF_APPEND_CHAR_SAFE(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c) /** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */ #define UTF_FWD_1_UNSAFE(s, i) UTF16_FWD_1_UNSAFE(s, i) /** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */ #define UTF_FWD_1_SAFE(s, i, length) UTF16_FWD_1_SAFE(s, i, length) /** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */ #define UTF_FWD_N_UNSAFE(s, i, n) UTF16_FWD_N_UNSAFE(s, i, n) /** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */ #define UTF_FWD_N_SAFE(s, i, length, n) UTF16_FWD_N_SAFE(s, i, length, n) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */ #define UTF_SET_CHAR_START_UNSAFE(s, i) UTF16_SET_CHAR_START_UNSAFE(s, i) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */ #define UTF_SET_CHAR_START_SAFE(s, start, i) UTF16_SET_CHAR_START_SAFE(s, start, i) /** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */ #define UTF_PREV_CHAR_UNSAFE(s, i, c) UTF16_PREV_CHAR_UNSAFE(s, i, c) /** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */ #define UTF_PREV_CHAR_SAFE(s, start, i, c, strict) UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) /** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */ #define UTF_BACK_1_UNSAFE(s, i) UTF16_BACK_1_UNSAFE(s, i) /** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */ #define UTF_BACK_1_SAFE(s, start, i) UTF16_BACK_1_SAFE(s, start, i) /** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */ #define UTF_BACK_N_UNSAFE(s, i, n) UTF16_BACK_N_UNSAFE(s, i, n) /** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */ #define UTF_BACK_N_SAFE(s, start, i, n) UTF16_BACK_N_SAFE(s, start, i, n) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */ #define UTF_SET_CHAR_LIMIT_UNSAFE(s, i) UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) /** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */ #define UTF_SET_CHAR_LIMIT_SAFE(s, start, i, length) UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) /* Define default macros (UTF-16 "safe") ------------------------------------ */ /** * Does this code unit alone encode a code point (BMP, not a surrogate)? * Same as UTF16_IS_SINGLE. * @deprecated ICU 2.4. Renamed to U_IS_SINGLE and U16_IS_SINGLE, see utf_old.h. */ #define UTF_IS_SINGLE(uchar) U16_IS_SINGLE(uchar) /** * Is this code unit the first one of several (a lead surrogate)? * Same as UTF16_IS_LEAD. * @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h. */ #define UTF_IS_LEAD(uchar) U16_IS_LEAD(uchar) /** * Is this code unit one of several but not the first one (a trail surrogate)? * Same as UTF16_IS_TRAIL. * @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h. */ #define UTF_IS_TRAIL(uchar) U16_IS_TRAIL(uchar) /** * Does this code point require multiple code units (is it a supplementary code point)? * Same as UTF16_NEED_MULTIPLE_UCHAR. * @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead. */ #define UTF_NEED_MULTIPLE_UCHAR(c) UTF16_NEED_MULTIPLE_UCHAR(c) /** * How many code units are used to encode this code point (1 or 2)? * Same as UTF16_CHAR_LENGTH. * @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h. */ #define UTF_CHAR_LENGTH(c) U16_LENGTH(c) /** * How many code units are used at most for any Unicode code point (2)? * Same as UTF16_MAX_CHAR_LENGTH. * @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h. */ #define UTF_MAX_CHAR_LENGTH U16_MAX_LENGTH /** * Set c to the code point that contains the code unit i. * i could point to the lead or the trail surrogate for the code point. * i is not modified. * Same as UTF16_GET_CHAR. * \pre 0<=i<length * * @deprecated ICU 2.4. Renamed to U16_GET, see utf_old.h. */ #define UTF_GET_CHAR(s, start, i, length, c) U16_GET(s, start, i, length, c) /** * Set c to the code point that starts at code unit i * and advance i to beyond the code units of this code point (post-increment). * i must point to the first code unit of a code point. * Otherwise c is set to the trail unit (surrogate) itself. * Same as UTF16_NEXT_CHAR. * \pre 0<=i<length * \post 0<i<=length * * @deprecated ICU 2.4. Renamed to U16_NEXT, see utf_old.h. */ #define UTF_NEXT_CHAR(s, i, length, c) U16_NEXT(s, i, length, c) /** * Append the code units of code point c to the string at index i * and advance i to beyond the new code units (post-increment). * The code units beginning at index i will be overwritten. * Same as UTF16_APPEND_CHAR. * \pre 0<=c<=0x10ffff * \pre 0<=i<length * \post 0<i<=length * * @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */ #define UTF_APPEND_CHAR(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c) /** * Advance i to beyond the code units of the code point that begins at i. * I.e., advance i by one code point. * Same as UTF16_FWD_1. * \pre 0<=i<length * \post 0<i<=length * * @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */ #define UTF_FWD_1(s, i, length) U16_FWD_1(s, i, length) /** * Advance i to beyond the code units of the n code points where the first one begins at i. * I.e., advance i by n code points. * Same as UT16_FWD_N. * \pre 0<=i<length * \post 0<i<=length * * @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */ #define UTF_FWD_N(s, i, length, n) U16_FWD_N(s, i, length, n) /** * Take the random-access index i and adjust it so that it points to the beginning * of a code point. * The input index points to any code unit of a code point and is moved to point to * the first code unit of the same code point. i is never incremented. * In other words, if i points to a trail surrogate that is preceded by a matching * lead surrogate, then i is decremented. Otherwise it is not modified. * This can be used to start an iteration with UTF_NEXT_CHAR() from a random index. * Same as UTF16_SET_CHAR_START. * \pre start<=i<length * \post start<=i<length * * @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */ #define UTF_SET_CHAR_START(s, start, i) U16_SET_CP_START(s, start, i) /** * Set c to the code point that has code units before i * and move i backward (towards the beginning of the string) * to the first code unit of this code point (pre-increment). * i must point to the first code unit after the last unit of a code point (i==length is allowed). * Same as UTF16_PREV_CHAR. * \pre start<i<=length * \post start<=i<length * * @deprecated ICU 2.4. Renamed to U16_PREV, see utf_old.h. */ #define UTF_PREV_CHAR(s, start, i, c) U16_PREV(s, start, i, c) /** * Move i backward (towards the beginning of the string) * to the first code unit of the code point that has code units before i. * I.e., move i backward by one code point. * i must point to the first code unit after the last unit of a code point (i==length is allowed). * Same as UTF16_BACK_1. * \pre start<i<=length * \post start<=i<length * * @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */ #define UTF_BACK_1(s, start, i) U16_BACK_1(s, start, i) /** * Move i backward (towards the beginning of the string) * to the first code unit of the n code points that have code units before i. * I.e., move i backward by n code points. * i must point to the first code unit after the last unit of a code point (i==length is allowed). * Same as UTF16_BACK_N. * \pre start<i<=length * \post start<=i<length * * @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */ #define UTF_BACK_N(s, start, i, n) U16_BACK_N(s, start, i, n) /** * Take the random-access index i and adjust it so that it points beyond * a code point. The input index points beyond any code unit * of a code point and is moved to point beyond the last code unit of the same * code point. i is never decremented. * In other words, if i points to a trail surrogate that is preceded by a matching * lead surrogate, then i is incremented. Otherwise it is not modified. * This can be used to start an iteration with UTF_PREV_CHAR() from a random index. * Same as UTF16_SET_CHAR_LIMIT. * \pre start<i<=length * \post start<i<=length * * @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */ #define UTF_SET_CHAR_LIMIT(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length) #endif // !U_HIDE_DEPRECATED_API && !U_HIDE_OBSOLETE_UTF_OLD_H #endif