/opt/alt/libicu/usr/include/unicode
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alphaindex.h270560644editdlrm
appendable.h86320644editdlrm
basictz.h90550644editdlrm
brkiter.h281950644editdlrm
bytestream.h97670644editdlrm
bytestrie.h197180644editdlrm
bytestriebuilder.h71860644editdlrm
calendar.h1075810644editdlrm
caniter.h75500644editdlrm
casemap.h258710644editdlrm
char16ptr.h73310644editdlrm
chariter.h245730644editdlrm
choicfmt.h244180644editdlrm
coleitr.h140330644editdlrm
coll.h569280644editdlrm
compactdecimalformat.h69710644editdlrm
curramt.h37820644editdlrm
currpinf.h74120644editdlrm
currunit.h36060644editdlrm
datefmt.h413340644editdlrm
dbbi.h11330644editdlrm
dcfmtsym.h205840644editdlrm
decimfmt.h884780644editdlrm
docmain.h68780644editdlrm
dtfmtsym.h385480644editdlrm
dtintrv.h38480644editdlrm
dtitvfmt.h438980644editdlrm
dtitvinf.h189030644editdlrm
dtptngen.h256260644editdlrm
dtrule.h88310644editdlrm
edits.h211690644editdlrm
enumset.h21300644editdlrm
errorcode.h48940644editdlrm
fieldpos.h88380644editdlrm
filteredbrk.h53640644editdlrm
fmtable.h249460644editdlrm
format.h127410644editdlrm
fpositer.h30470644editdlrm
gender.h33470644editdlrm
gregocal.h323310644editdlrm
icudataver.h10510644editdlrm
icuplug.h121660644editdlrm
idna.h129380644editdlrm
listformatter.h63310644editdlrm
localpointer.h172840644editdlrm
locdspnm.h72240644editdlrm
locid.h460010644editdlrm
measfmt.h122980644editdlrm
measunit.h394270644editdlrm
measure.h43610644editdlrm
messagepattern.h344600644editdlrm
msgfmt.h443980644editdlrm
normalizer2.h347890644editdlrm
normlzr.h314760644editdlrm
nounit.h26930644editdlrm
numberformatter.h891640644editdlrm
numberrangeformatter.h294300644editdlrm
numfmt.h503220644editdlrm
numsys.h68950644editdlrm
parseerr.h31550644editdlrm
parsepos.h55810644editdlrm
platform.h277540644editdlrm
plurfmt.h257860644editdlrm
plurrule.h178340644editdlrm
ptypes.h35770644editdlrm
putil.h64870644editdlrm
rbbi.h270470644editdlrm
rbnf.h509840644editdlrm
rbtz.h158380644editdlrm
regex.h869430644editdlrm
region.h93420644editdlrm
reldatefmt.h148120644editdlrm
rep.h97260644editdlrm
resbund.h184400644editdlrm
schriter.h64100644editdlrm
scientificnumberformatter.h64740644editdlrm
search.h227420644editdlrm
selfmt.h145790644editdlrm
simpleformatter.h117010644editdlrm
simpletz.h463890644editdlrm
smpdtfmt.h724420644editdlrm
sortkey.h113830644editdlrm
std_string.h10150644editdlrm
strenum.h102790644editdlrm
stringoptions.h59260644editdlrm
stringpiece.h66100644editdlrm
stringtriebuilder.h156360644editdlrm
stsearch.h218010644editdlrm
symtable.h43120644editdlrm
tblcoll.h372720644editdlrm
timezone.h418620644editdlrm
tmunit.h33710644editdlrm
tmutamt.h49180644editdlrm
tmutfmt.h79770644editdlrm
translit.h673390644editdlrm
tzfmt.h438460644editdlrm
tznames.h171900644editdlrm
tzrule.h361700644editdlrm
tztrans.h62140644editdlrm
ubidi.h917110644editdlrm
ubiditransform.h129500644editdlrm
ubrk.h245470644editdlrm
ucal.h565260644editdlrm
ucasemap.h155460644editdlrm
ucat.h54840644editdlrm
uchar.h1433140644editdlrm
ucharstrie.h215690644editdlrm
ucharstriebuilder.h73160644editdlrm
uchriter.h134570644editdlrm
uclean.h114740644editdlrm
ucnv.h850850644editdlrm
ucnvsel.h62830644editdlrm
ucnv_cb.h67480644editdlrm
ucnv_err.h214920644editdlrm
ucol.h628640644editdlrm
ucoleitr.h96840644editdlrm
uconfig.h119490644editdlrm
ucpmap.h57090644editdlrm
ucptrie.h228240644editdlrm
ucsdet.h150180644editdlrm
ucurr.h159470644editdlrm
udat.h615720644editdlrm
udata.h159050644editdlrm
udateintervalformat.h69500644editdlrm
udatpg.h266640644editdlrm
udisplaycontext.h60290644editdlrm
uenum.h79700644editdlrm
ufieldpositer.h44610644editdlrm
uformattable.h111980644editdlrm
ugender.h20520644editdlrm
uidna.h341690644editdlrm
uiter.h233190644editdlrm
uldnames.h107020644editdlrm
ulistformatter.h51480644editdlrm
uloc.h519710644editdlrm
ulocdata.h115330644editdlrm
umachine.h135090644editdlrm
umisc.h13650644editdlrm
umsg.h248120644editdlrm
umutablecptrie.h84770644editdlrm
unifilt.h37160644editdlrm
unifunct.h40790644editdlrm
unimatch.h61840644editdlrm
unirepl.h34030644editdlrm
uniset.h657960644editdlrm
unistr.h1785870644editdlrm
unorm.h209380644editdlrm
unorm2.h252540644editdlrm
unum.h546660644editdlrm
unumberformatter.h243350644editdlrm
unumsys.h73140644editdlrm
uobject.h109580644editdlrm
upluralrules.h68800644editdlrm
uregex.h737840644editdlrm
uregion.h100730644editdlrm
ureldatefmt.h125180644editdlrm
urename.h1307910644editdlrm
urep.h55070644editdlrm
ures.h374040644editdlrm
uscript.h271530644editdlrm
usearch.h390380644editdlrm
uset.h409580644editdlrm
usetiter.h97190644editdlrm
ushape.h184320644editdlrm
uspoof.h676130644editdlrm
usprep.h83310644editdlrm
ustdio.h394690644editdlrm
ustream.h18440644editdlrm
ustring.h742110644editdlrm
ustringtrie.h32240644editdlrm
utext.h595030644editdlrm
utf.h80460644editdlrm
utf8.h307340644editdlrm
utf16.h228660644editdlrm
utf32.h7630644editdlrm
utf_old.h448270644editdlrm
utmscale.h141130644editdlrm
utrace.h142190644editdlrm
utrans.h261570644editdlrm
utypes.h312120644editdlrm
uvernum.h62060644editdlrm
uversion.h68650644editdlrm
vtzone.h206510644editdlrm
Edit: /opt/alt/libicu/usr/include/unicode/ucptrie.h (22824B)
// © 2017 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html // ucptrie.h (modified from utrie2.h) // created: 2017dec29 Markus W. Scherer #ifndef __UCPTRIE_H__ #define __UCPTRIE_H__ #include "unicode/utypes.h" #ifndef U_HIDE_DRAFT_API #include "unicode/localpointer.h" #include "unicode/ucpmap.h" #include "unicode/utf8.h" U_CDECL_BEGIN /** * \file * * This file defines an immutable Unicode code point trie. * * @see UCPTrie * @see UMutableCPTrie */ #ifndef U_IN_DOXYGEN /** @internal */ typedef union UCPTrieData { /** @internal */ const void *ptr0; /** @internal */ const uint16_t *ptr16; /** @internal */ const uint32_t *ptr32; /** @internal */ const uint8_t *ptr8; } UCPTrieData; #endif /** * Immutable Unicode code point trie structure. * Fast, reasonably compact, map from Unicode code points (U+0000..U+10FFFF) to integer values. * For details see http://site.icu-project.org/design/struct/utrie * * Do not access UCPTrie fields directly; use public functions and macros. * Functions are easy to use: They support all trie types and value widths. * * When performance is really important, macros provide faster access. * Most macros are specific to either "fast" or "small" tries, see UCPTrieType. * There are "fast" macros for special optimized use cases. * * The macros will return bogus values, or may crash, if used on the wrong type or value width. * * @see UMutableCPTrie * @draft ICU 63 */ struct UCPTrie { #ifndef U_IN_DOXYGEN /** @internal */ const uint16_t *index; /** @internal */ UCPTrieData data; /** @internal */ int32_t indexLength; /** @internal */ int32_t dataLength; /** Start of the last range which ends at U+10FFFF. @internal */ UChar32 highStart; /** highStart>>12 @internal */ uint16_t shifted12HighStart; /** @internal */ int8_t type; // UCPTrieType /** @internal */ int8_t valueWidth; // UCPTrieValueWidth /** padding/reserved @internal */ uint32_t reserved32; /** padding/reserved @internal */ uint16_t reserved16; /** * Internal index-3 null block offset. * Set to an impossibly high value (e.g., 0xffff) if there is no dedicated index-3 null block. * @internal */ uint16_t index3NullOffset; /** * Internal data null block offset, not shifted. * Set to an impossibly high value (e.g., 0xfffff) if there is no dedicated data null block. * @internal */ int32_t dataNullOffset; /** @internal */ uint32_t nullValue; #ifdef UCPTRIE_DEBUG /** @internal */ const char *name; #endif #endif }; #ifndef U_IN_DOXYGEN typedef struct UCPTrie UCPTrie; #endif /** * Selectors for the type of a UCPTrie. * Different trade-offs for size vs. speed. * * @see umutablecptrie_buildImmutable * @see ucptrie_openFromBinary * @see ucptrie_getType * @draft ICU 63 */ enum UCPTrieType { /** * For ucptrie_openFromBinary() to accept any type. * ucptrie_getType() will return the actual type. * @draft ICU 63 */ UCPTRIE_TYPE_ANY = -1, /** * Fast/simple/larger BMP data structure. Use functions and "fast" macros. * @draft ICU 63 */ UCPTRIE_TYPE_FAST, /** * Small/slower BMP data structure. Use functions and "small" macros. * @draft ICU 63 */ UCPTRIE_TYPE_SMALL }; #ifndef U_IN_DOXYGEN typedef enum UCPTrieType UCPTrieType; #endif /** * Selectors for the number of bits in a UCPTrie data value. * * @see umutablecptrie_buildImmutable * @see ucptrie_openFromBinary * @see ucptrie_getValueWidth * @draft ICU 63 */ enum UCPTrieValueWidth { /** * For ucptrie_openFromBinary() to accept any data value width. * ucptrie_getValueWidth() will return the actual data value width. * @draft ICU 63 */ UCPTRIE_VALUE_BITS_ANY = -1, /** * The trie stores 16 bits per data value. * It returns them as unsigned values 0..0xffff=65535. * @draft ICU 63 */ UCPTRIE_VALUE_BITS_16, /** * The trie stores 32 bits per data value. * @draft ICU 63 */ UCPTRIE_VALUE_BITS_32, /** * The trie stores 8 bits per data value. * It returns them as unsigned values 0..0xff=255. * @draft ICU 63 */ UCPTRIE_VALUE_BITS_8 }; #ifndef U_IN_DOXYGEN typedef enum UCPTrieValueWidth UCPTrieValueWidth; #endif /** * Opens a trie from its binary form, stored in 32-bit-aligned memory. * Inverse of ucptrie_toBinary(). * * The memory must remain valid and unchanged as long as the trie is used. * You must ucptrie_close() the trie once you are done using it. * * @param type selects the trie type; results in an * U_INVALID_FORMAT_ERROR if it does not match the binary data; * use UCPTRIE_TYPE_ANY to accept any type * @param valueWidth selects the number of bits in a data value; results in an * U_INVALID_FORMAT_ERROR if it does not match the binary data; * use UCPTRIE_VALUE_BITS_ANY to accept any data value width * @param data a pointer to 32-bit-aligned memory containing the binary data of a UCPTrie * @param length the number of bytes available at data; * can be more than necessary * @param pActualLength receives the actual number of bytes at data taken up by the trie data; * can be NULL * @param pErrorCode an in/out ICU UErrorCode * @return the trie * * @see umutablecptrie_open * @see umutablecptrie_buildImmutable * @see ucptrie_toBinary * @draft ICU 63 */ U_CAPI UCPTrie * U_EXPORT2 ucptrie_openFromBinary(UCPTrieType type, UCPTrieValueWidth valueWidth, const void *data, int32_t length, int32_t *pActualLength, UErrorCode *pErrorCode); /** * Closes a trie and releases associated memory. * * @param trie the trie * @draft ICU 63 */ U_CAPI void U_EXPORT2 ucptrie_close(UCPTrie *trie); #if U_SHOW_CPLUSPLUS_API U_NAMESPACE_BEGIN /** * \class LocalUCPTriePointer * "Smart pointer" class, closes a UCPTrie via ucptrie_close(). * For most methods see the LocalPointerBase base class. * * @see LocalPointerBase * @see LocalPointer * @draft ICU 63 */ U_DEFINE_LOCAL_OPEN_POINTER(LocalUCPTriePointer, UCPTrie, ucptrie_close); U_NAMESPACE_END #endif /** * Returns the trie type. * * @param trie the trie * @return the trie type * @see ucptrie_openFromBinary * @see UCPTRIE_TYPE_ANY * @draft ICU 63 */ U_CAPI UCPTrieType U_EXPORT2 ucptrie_getType(const UCPTrie *trie); /** * Returns the number of bits in a trie data value. * * @param trie the trie * @return the number of bits in a trie data value * @see ucptrie_openFromBinary * @see UCPTRIE_VALUE_BITS_ANY * @draft ICU 63 */ U_CAPI UCPTrieValueWidth U_EXPORT2 ucptrie_getValueWidth(const UCPTrie *trie); /** * Returns the value for a code point as stored in the trie, with range checking. * Returns the trie error value if c is not in the range 0..U+10FFFF. * * Easier to use than UCPTRIE_FAST_GET() and similar macros but slower. * Easier to use because, unlike the macros, this function works on all UCPTrie * objects, for all types and value widths. * * @param trie the trie * @param c the code point * @return the trie value, * or the trie error value if the code point is not in the range 0..U+10FFFF * @draft ICU 63 */ U_CAPI uint32_t U_EXPORT2 ucptrie_get(const UCPTrie *trie, UChar32 c); /** * Returns the last code point such that all those from start to there have the same value. * Can be used to efficiently iterate over all same-value ranges in a trie. * (This is normally faster than iterating over code points and get()ting each value, * but much slower than a data structure that stores ranges directly.) * * If the UCPMapValueFilter function pointer is not NULL, then * the value to be delivered is passed through that function, and the return value is the end * of the range where all values are modified to the same actual value. * The value is unchanged if that function pointer is NULL. * * Example: * \code * UChar32 start = 0, end; * uint32_t value; * while ((end = ucptrie_getRange(trie, start, UCPMAP_RANGE_NORMAL, 0, * NULL, NULL, &value)) >= 0) { * // Work with the range start..end and its value. * start = end + 1; * } * \endcode * * @param trie the trie * @param start range start * @param option defines whether surrogates are treated normally, * or as having the surrogateValue; usually UCPMAP_RANGE_NORMAL * @param surrogateValue value for surrogates; ignored if option==UCPMAP_RANGE_NORMAL * @param filter a pointer to a function that may modify the trie data value, * or NULL if the values from the trie are to be used unmodified * @param context an opaque pointer that is passed on to the filter function * @param pValue if not NULL, receives the value that every code point start..end has; * may have been modified by filter(context, trie value) * if that function pointer is not NULL * @return the range end code point, or -1 if start is not a valid code point * @draft ICU 63 */ U_CAPI UChar32 U_EXPORT2 ucptrie_getRange(const UCPTrie *trie, UChar32 start, UCPMapRangeOption option, uint32_t surrogateValue, UCPMapValueFilter *filter, const void *context, uint32_t *pValue); /** * Writes a memory-mappable form of the trie into 32-bit aligned memory. * Inverse of ucptrie_openFromBinary(). * * @param trie the trie * @param data a pointer to 32-bit-aligned memory to be filled with the trie data; * can be NULL if capacity==0 * @param capacity the number of bytes available at data, or 0 for pure preflighting * @param pErrorCode an in/out ICU UErrorCode; * U_BUFFER_OVERFLOW_ERROR if the capacity is too small * @return the number of bytes written or (if buffer overflow) needed for the trie * * @see ucptrie_openFromBinary() * @draft ICU 63 */ U_CAPI int32_t U_EXPORT2 ucptrie_toBinary(const UCPTrie *trie, void *data, int32_t capacity, UErrorCode *pErrorCode); /** * Macro parameter value for a trie with 16-bit data values. * Use the name of this macro as a "dataAccess" parameter in other macros. * Do not use this macro in any other way. * * @see UCPTRIE_VALUE_BITS_16 * @draft ICU 63 */ #define UCPTRIE_16(trie, i) ((trie)->data.ptr16[i]) /** * Macro parameter value for a trie with 32-bit data values. * Use the name of this macro as a "dataAccess" parameter in other macros. * Do not use this macro in any other way. * * @see UCPTRIE_VALUE_BITS_32 * @draft ICU 63 */ #define UCPTRIE_32(trie, i) ((trie)->data.ptr32[i]) /** * Macro parameter value for a trie with 8-bit data values. * Use the name of this macro as a "dataAccess" parameter in other macros. * Do not use this macro in any other way. * * @see UCPTRIE_VALUE_BITS_8 * @draft ICU 63 */ #define UCPTRIE_8(trie, i) ((trie)->data.ptr8[i]) /** * Returns a trie value for a code point, with range checking. * Returns the trie error value if c is not in the range 0..U+10FFFF. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param c (UChar32, in) the input code point * @return The code point's trie value. * @draft ICU 63 */ #define UCPTRIE_FAST_GET(trie, dataAccess, c) dataAccess(trie, _UCPTRIE_CP_INDEX(trie, 0xffff, c)) /** * Returns a 16-bit trie value for a code point, with range checking. * Returns the trie error value if c is not in the range U+0000..U+10FFFF. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_SMALL * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param c (UChar32, in) the input code point * @return The code point's trie value. * @draft ICU 63 */ #define UCPTRIE_SMALL_GET(trie, dataAccess, c) \ dataAccess(trie, _UCPTRIE_CP_INDEX(trie, UCPTRIE_SMALL_MAX, c)) /** * UTF-16: Reads the next code point (UChar32 c, out), post-increments src, * and gets a value from the trie. * Sets the trie error value if c is an unpaired surrogate. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param src (const UChar *, in/out) the source text pointer * @param limit (const UChar *, in) the limit pointer for the text, or NULL if NUL-terminated * @param c (UChar32, out) variable for the code point * @param result (out) variable for the trie lookup result * @draft ICU 63 */ #define UCPTRIE_FAST_U16_NEXT(trie, dataAccess, src, limit, c, result) { \ (c) = *(src)++; \ int32_t __index; \ if (!U16_IS_SURROGATE(c)) { \ __index = _UCPTRIE_FAST_INDEX(trie, c); \ } else { \ uint16_t __c2; \ if (U16_IS_SURROGATE_LEAD(c) && (src) != (limit) && U16_IS_TRAIL(__c2 = *(src))) { \ ++(src); \ (c) = U16_GET_SUPPLEMENTARY((c), __c2); \ __index = _UCPTRIE_SMALL_INDEX(trie, c); \ } else { \ __index = (trie)->dataLength - UCPTRIE_ERROR_VALUE_NEG_DATA_OFFSET; \ } \ } \ (result) = dataAccess(trie, __index); \ } /** * UTF-16: Reads the previous code point (UChar32 c, out), pre-decrements src, * and gets a value from the trie. * Sets the trie error value if c is an unpaired surrogate. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param start (const UChar *, in) the start pointer for the text * @param src (const UChar *, in/out) the source text pointer * @param c (UChar32, out) variable for the code point * @param result (out) variable for the trie lookup result * @draft ICU 63 */ #define UCPTRIE_FAST_U16_PREV(trie, dataAccess, start, src, c, result) { \ (c) = *--(src); \ int32_t __index; \ if (!U16_IS_SURROGATE(c)) { \ __index = _UCPTRIE_FAST_INDEX(trie, c); \ } else { \ uint16_t __c2; \ if (U16_IS_SURROGATE_TRAIL(c) && (src) != (start) && U16_IS_LEAD(__c2 = *((src) - 1))) { \ --(src); \ (c) = U16_GET_SUPPLEMENTARY(__c2, (c)); \ __index = _UCPTRIE_SMALL_INDEX(trie, c); \ } else { \ __index = (trie)->dataLength - UCPTRIE_ERROR_VALUE_NEG_DATA_OFFSET; \ } \ } \ (result) = dataAccess(trie, __index); \ } /** * UTF-8: Post-increments src and gets a value from the trie. * Sets the trie error value for an ill-formed byte sequence. * * Unlike UCPTRIE_FAST_U16_NEXT() this UTF-8 macro does not provide the code point * because it would be more work to do so and is often not needed. * If the trie value differs from the error value, then the byte sequence is well-formed, * and the code point can be assembled without revalidation. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param src (const char *, in/out) the source text pointer * @param limit (const char *, in) the limit pointer for the text (must not be NULL) * @param result (out) variable for the trie lookup result * @draft ICU 63 */ #define UCPTRIE_FAST_U8_NEXT(trie, dataAccess, src, limit, result) { \ int32_t __lead = (uint8_t)*(src)++; \ if (!U8_IS_SINGLE(__lead)) { \ uint8_t __t1, __t2, __t3; \ if ((src) != (limit) && \ (__lead >= 0xe0 ? \ __lead < 0xf0 ? /* U+0800..U+FFFF except surrogates */ \ U8_LEAD3_T1_BITS[__lead &= 0xf] & (1 << ((__t1 = *(src)) >> 5)) && \ ++(src) != (limit) && (__t2 = *(src) - 0x80) <= 0x3f && \ (__lead = ((int32_t)(trie)->index[(__lead << 6) + (__t1 & 0x3f)]) + __t2, 1) \ : /* U+10000..U+10FFFF */ \ (__lead -= 0xf0) <= 4 && \ U8_LEAD4_T1_BITS[(__t1 = *(src)) >> 4] & (1 << __lead) && \ (__lead = (__lead << 6) | (__t1 & 0x3f), ++(src) != (limit)) && \ (__t2 = *(src) - 0x80) <= 0x3f && \ ++(src) != (limit) && (__t3 = *(src) - 0x80) <= 0x3f && \ (__lead = __lead >= (trie)->shifted12HighStart ? \ (trie)->dataLength - UCPTRIE_HIGH_VALUE_NEG_DATA_OFFSET : \ ucptrie_internalSmallU8Index((trie), __lead, __t2, __t3), 1) \ : /* U+0080..U+07FF */ \ __lead >= 0xc2 && (__t1 = *(src) - 0x80) <= 0x3f && \ (__lead = (int32_t)(trie)->index[__lead & 0x1f] + __t1, 1))) { \ ++(src); \ } else { \ __lead = (trie)->dataLength - UCPTRIE_ERROR_VALUE_NEG_DATA_OFFSET; /* ill-formed*/ \ } \ } \ (result) = dataAccess(trie, __lead); \ } /** * UTF-8: Pre-decrements src and gets a value from the trie. * Sets the trie error value for an ill-formed byte sequence. * * Unlike UCPTRIE_FAST_U16_PREV() this UTF-8 macro does not provide the code point * because it would be more work to do so and is often not needed. * If the trie value differs from the error value, then the byte sequence is well-formed, * and the code point can be assembled without revalidation. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param start (const char *, in) the start pointer for the text * @param src (const char *, in/out) the source text pointer * @param result (out) variable for the trie lookup result * @draft ICU 63 */ #define UCPTRIE_FAST_U8_PREV(trie, dataAccess, start, src, result) { \ int32_t __index = (uint8_t)*--(src); \ if (!U8_IS_SINGLE(__index)) { \ __index = ucptrie_internalU8PrevIndex((trie), __index, (const uint8_t *)(start), \ (const uint8_t *)(src)); \ (src) -= __index & 7; \ __index >>= 3; \ } \ (result) = dataAccess(trie, __index); \ } /** * Returns a trie value for an ASCII code point, without range checking. * * @param trie (const UCPTrie *, in) the trie (of either fast or small type) * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param c (UChar32, in) the input code point; must be U+0000..U+007F * @return The ASCII code point's trie value. * @draft ICU 63 */ #define UCPTRIE_ASCII_GET(trie, dataAccess, c) dataAccess(trie, c) /** * Returns a trie value for a BMP code point (U+0000..U+FFFF), without range checking. * Can be used to look up a value for a UTF-16 code unit if other parts of * the string processing check for surrogates. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param c (UChar32, in) the input code point, must be U+0000..U+FFFF * @return The BMP code point's trie value. * @draft ICU 63 */ #define UCPTRIE_FAST_BMP_GET(trie, dataAccess, c) dataAccess(trie, _UCPTRIE_FAST_INDEX(trie, c)) /** * Returns a trie value for a supplementary code point (U+10000..U+10FFFF), * without range checking. * * @param trie (const UCPTrie *, in) the trie; must have type UCPTRIE_TYPE_FAST * @param dataAccess UCPTRIE_16, UCPTRIE_32, or UCPTRIE_8 according to the trie’s value width * @param c (UChar32, in) the input code point, must be U+10000..U+10FFFF * @return The supplementary code point's trie value. * @draft ICU 63 */ #define UCPTRIE_FAST_SUPP_GET(trie, dataAccess, c) dataAccess(trie, _UCPTRIE_SMALL_INDEX(trie, c)) /* Internal definitions ----------------------------------------------------- */ #ifndef U_IN_DOXYGEN /** * Internal implementation constants. * These are needed for the API macros, but users should not use these directly. * @internal */ enum { /** @internal */ UCPTRIE_FAST_SHIFT = 6, /** Number of entries in a data block for code points below the fast limit. 64=0x40 @internal */ UCPTRIE_FAST_DATA_BLOCK_LENGTH = 1 << UCPTRIE_FAST_SHIFT, /** Mask for getting the lower bits for the in-fast-data-block offset. @internal */ UCPTRIE_FAST_DATA_MASK = UCPTRIE_FAST_DATA_BLOCK_LENGTH - 1, /** @internal */ UCPTRIE_SMALL_MAX = 0xfff, /** * Offset from dataLength (to be subtracted) for fetching the * value returned for out-of-range code points and ill-formed UTF-8/16. * @internal */ UCPTRIE_ERROR_VALUE_NEG_DATA_OFFSET = 1, /** * Offset from dataLength (to be subtracted) for fetching the * value returned for code points highStart..U+10FFFF. * @internal */ UCPTRIE_HIGH_VALUE_NEG_DATA_OFFSET = 2 }; /* Internal functions and macros -------------------------------------------- */ // Do not conditionalize with #ifndef U_HIDE_INTERNAL_API, needed for public API /** @internal */ U_INTERNAL int32_t U_EXPORT2 ucptrie_internalSmallIndex(const UCPTrie *trie, UChar32 c); /** @internal */ U_INTERNAL int32_t U_EXPORT2 ucptrie_internalSmallU8Index(const UCPTrie *trie, int32_t lt1, uint8_t t2, uint8_t t3); /** * Internal function for part of the UCPTRIE_FAST_U8_PREVxx() macro implementations. * Do not call directly. * @internal */ U_INTERNAL int32_t U_EXPORT2 ucptrie_internalU8PrevIndex(const UCPTrie *trie, UChar32 c, const uint8_t *start, const uint8_t *src); /** Internal trie getter for a code point below the fast limit. Returns the data index. @internal */ #define _UCPTRIE_FAST_INDEX(trie, c) \ ((int32_t)(trie)->index[(c) >> UCPTRIE_FAST_SHIFT] + ((c) & UCPTRIE_FAST_DATA_MASK)) /** Internal trie getter for a code point at or above the fast limit. Returns the data index. @internal */ #define _UCPTRIE_SMALL_INDEX(trie, c) \ ((c) >= (trie)->highStart ? \ (trie)->dataLength - UCPTRIE_HIGH_VALUE_NEG_DATA_OFFSET : \ ucptrie_internalSmallIndex(trie, c)) /** * Internal trie getter for a code point, with checking that c is in U+0000..10FFFF. * Returns the data index. * @internal */ #define _UCPTRIE_CP_INDEX(trie, fastMax, c) \ ((uint32_t)(c) <= (uint32_t)(fastMax) ? \ _UCPTRIE_FAST_INDEX(trie, c) : \ (uint32_t)(c) <= 0x10ffff ? \ _UCPTRIE_SMALL_INDEX(trie, c) : \ (trie)->dataLength - UCPTRIE_ERROR_VALUE_NEG_DATA_OFFSET) U_CDECL_END #endif // U_IN_DOXYGEN #endif // U_HIDE_DRAFT_API #endif