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      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) 2002-2016, International Business Machines
      7 *   Corporation and others.  All Rights Reserved.
      8 *
      9 *******************************************************************************
     10 *   file name:  uprops.h
     11 *   encoding:   UTF-8
     12 *   tab size:   8 (not used)
     13 *   indentation:4
     14 *
     15 *   created on: 2002feb24
     16 *   created by: Markus W. Scherer
     17 *
     18 *   Constants for mostly non-core Unicode character properties
     19 *   stored in uprops.icu.
     20 */
     21 
     22 #ifndef __UPROPS_H__
     23 #define __UPROPS_H__
     24 
     25 #include "unicode/utypes.h"
     26 #include "unicode/uset.h"
     27 #include "uset_imp.h"
     28 #include "udataswp.h"
     29 
     30 /* indexes[] entries */
     31 enum {
     32     UPROPS_PROPS32_INDEX,
     33     UPROPS_EXCEPTIONS_INDEX,
     34     UPROPS_EXCEPTIONS_TOP_INDEX,
     35 
     36     UPROPS_ADDITIONAL_TRIE_INDEX,
     37     UPROPS_ADDITIONAL_VECTORS_INDEX,
     38     UPROPS_ADDITIONAL_VECTORS_COLUMNS_INDEX,
     39 
     40     UPROPS_SCRIPT_EXTENSIONS_INDEX,
     41 
     42     UPROPS_RESERVED_INDEX_7,
     43     UPROPS_RESERVED_INDEX_8,
     44 
     45     /* size of the data file (number of 32-bit units after the header) */
     46     UPROPS_DATA_TOP_INDEX,
     47 
     48     /* maximum values for code values in vector word 0 */
     49     UPROPS_MAX_VALUES_INDEX=10,
     50     /* maximum values for code values in vector word 2 */
     51     UPROPS_MAX_VALUES_2_INDEX,
     52 
     53     UPROPS_INDEX_COUNT=16
     54 };
     55 
     56 /* definitions for the main properties words */
     57 enum {
     58     /* general category shift==0                                0 (5 bits) */
     59     /* reserved                                                 5 (1 bit) */
     60     UPROPS_NUMERIC_TYPE_VALUE_SHIFT=6                       /*  6 (10 bits) */
     61 };
     62 
     63 #define GET_CATEGORY(props) ((props)&0x1f)
     64 #define CAT_MASK(props) U_MASK(GET_CATEGORY(props))
     65 
     66 #define GET_NUMERIC_TYPE_VALUE(props) ((props)>>UPROPS_NUMERIC_TYPE_VALUE_SHIFT)
     67 
     68 /* constants for the storage form of numeric types and values */
     69 enum {
     70     /** No numeric value. */
     71     UPROPS_NTV_NONE=0,
     72     /** Decimal digits: nv=0..9 */
     73     UPROPS_NTV_DECIMAL_START=1,
     74     /** Other digits: nv=0..9 */
     75     UPROPS_NTV_DIGIT_START=11,
     76     /** Small integers: nv=0..154 */
     77     UPROPS_NTV_NUMERIC_START=21,
     78     /** Fractions: ((ntv>>4)-12) / ((ntv&0xf)+1) = -1..17 / 1..16 */
     79     UPROPS_NTV_FRACTION_START=0xb0,
     80     /**
     81      * Large integers:
     82      * ((ntv>>5)-14) * 10^((ntv&0x1f)+2) = (1..9)*(10^2..10^33)
     83      * (only one significant decimal digit)
     84      */
     85     UPROPS_NTV_LARGE_START=0x1e0,
     86     /**
     87      * Sexagesimal numbers:
     88      * ((ntv>>2)-0xbf) * 60^((ntv&3)+1) = (1..9)*(60^1..60^4)
     89      */
     90     UPROPS_NTV_BASE60_START=0x300,
     91     /**
     92      * Fraction-20 values:
     93      * frac20 = ntv-0x324 = 0..0x17 -> 1|3|5|7 / 20|40|80|160|320|640
     94      * numerator: num = 2*(frac20&3)+1
     95      * denominator: den = 20<<(frac20>>2)
     96      */
     97     UPROPS_NTV_FRACTION20_START=UPROPS_NTV_BASE60_START+36,  // 0x300+9*4=0x324
     98     /** No numeric value (yet). */
     99     UPROPS_NTV_RESERVED_START=UPROPS_NTV_FRACTION20_START+24,  // 0x324+6*4=0x34c
    100 
    101     UPROPS_NTV_MAX_SMALL_INT=UPROPS_NTV_FRACTION_START-UPROPS_NTV_NUMERIC_START-1
    102 };
    103 
    104 #define UPROPS_NTV_GET_TYPE(ntv) \
    105     ((ntv==UPROPS_NTV_NONE) ? U_NT_NONE : \
    106     (ntv<UPROPS_NTV_DIGIT_START) ?  U_NT_DECIMAL : \
    107     (ntv<UPROPS_NTV_NUMERIC_START) ? U_NT_DIGIT : \
    108     U_NT_NUMERIC)
    109 
    110 /* number of properties vector words */
    111 #define UPROPS_VECTOR_WORDS     3
    112 
    113 /*
    114  * Properties in vector word 0
    115  * Bits
    116  * 31..24   DerivedAge version major/minor one nibble each
    117  * 23..22   3..1: Bits 7..0 = Script_Extensions index
    118  *             3: Script value from Script_Extensions
    119  *             2: Script=Inherited
    120  *             1: Script=Common
    121  *             0: Script=bits 7..0
    122  * 21..20   reserved
    123  * 19..17   East Asian Width
    124  * 16.. 8   UBlockCode
    125  *  7.. 0   UScriptCode, or index to Script_Extensions
    126  */
    127 
    128 /* derived age: one nibble each for major and minor version numbers */
    129 #define UPROPS_AGE_MASK         0xff000000
    130 #define UPROPS_AGE_SHIFT        24
    131 
    132 /* Script_Extensions: mask includes Script */
    133 #define UPROPS_SCRIPT_X_MASK    0x00c000ff
    134 #define UPROPS_SCRIPT_X_SHIFT   22
    135 
    136 #define UPROPS_EA_MASK          0x000e0000
    137 #define UPROPS_EA_SHIFT         17
    138 
    139 #define UPROPS_BLOCK_MASK       0x0001ff00
    140 #define UPROPS_BLOCK_SHIFT      8
    141 
    142 #define UPROPS_SCRIPT_MASK      0x000000ff
    143 
    144 /* UPROPS_SCRIPT_X_WITH_COMMON must be the lowest value that involves Script_Extensions. */
    145 #define UPROPS_SCRIPT_X_WITH_COMMON     0x400000
    146 #define UPROPS_SCRIPT_X_WITH_INHERITED  0x800000
    147 #define UPROPS_SCRIPT_X_WITH_OTHER      0xc00000
    148 
    149 /*
    150  * Properties in vector word 1
    151  * Each bit encodes one binary property.
    152  * The following constants represent the bit number, use 1<<UPROPS_XYZ.
    153  * UPROPS_BINARY_1_TOP<=32!
    154  *
    155  * Keep this list of property enums in sync with
    156  * propListNames[] in icu/source/tools/genprops/props2.c!
    157  *
    158  * ICU 2.6/uprops format version 3.2 stores full properties instead of "Other_".
    159  */
    160 enum {
    161     UPROPS_WHITE_SPACE,
    162     UPROPS_DASH,
    163     UPROPS_HYPHEN,
    164     UPROPS_QUOTATION_MARK,
    165     UPROPS_TERMINAL_PUNCTUATION,
    166     UPROPS_MATH,
    167     UPROPS_HEX_DIGIT,
    168     UPROPS_ASCII_HEX_DIGIT,
    169     UPROPS_ALPHABETIC,
    170     UPROPS_IDEOGRAPHIC,
    171     UPROPS_DIACRITIC,
    172     UPROPS_EXTENDER,
    173     UPROPS_NONCHARACTER_CODE_POINT,
    174     UPROPS_GRAPHEME_EXTEND,
    175     UPROPS_GRAPHEME_LINK,
    176     UPROPS_IDS_BINARY_OPERATOR,
    177     UPROPS_IDS_TRINARY_OPERATOR,
    178     UPROPS_RADICAL,
    179     UPROPS_UNIFIED_IDEOGRAPH,
    180     UPROPS_DEFAULT_IGNORABLE_CODE_POINT,
    181     UPROPS_DEPRECATED,
    182     UPROPS_LOGICAL_ORDER_EXCEPTION,
    183     UPROPS_XID_START,
    184     UPROPS_XID_CONTINUE,
    185     UPROPS_ID_START,                            /* ICU 2.6, uprops format version 3.2 */
    186     UPROPS_ID_CONTINUE,
    187     UPROPS_GRAPHEME_BASE,
    188     UPROPS_S_TERM,                              /* new in ICU 3.0 and Unicode 4.0.1 */
    189     UPROPS_VARIATION_SELECTOR,
    190     UPROPS_PATTERN_SYNTAX,                      /* new in ICU 3.4 and Unicode 4.1 */
    191     UPROPS_PATTERN_WHITE_SPACE,
    192     UPROPS_PREPENDED_CONCATENATION_MARK,        // new in ICU 60 and Unicode 10
    193     UPROPS_BINARY_1_TOP                         /* ==32 - full! */
    194 };
    195 
    196 /*
    197  * Properties in vector word 2
    198  * Bits
    199  * 31..26   http://www.unicode.org/reports/tr51/#Emoji_Properties
    200  * 25..20   Line Break
    201  * 19..15   Sentence Break
    202  * 14..10   Word Break
    203  *  9.. 5   Grapheme Cluster Break
    204  *  4.. 0   Decomposition Type
    205  */
    206 enum {
    207     UPROPS_2_EXTENDED_PICTOGRAPHIC=26,
    208     UPROPS_2_EMOJI_COMPONENT,
    209     UPROPS_2_EMOJI,
    210     UPROPS_2_EMOJI_PRESENTATION,
    211     UPROPS_2_EMOJI_MODIFIER,
    212     UPROPS_2_EMOJI_MODIFIER_BASE
    213 };
    214 
    215 #define UPROPS_LB_MASK          0x03f00000
    216 #define UPROPS_LB_SHIFT         20
    217 
    218 #define UPROPS_SB_MASK          0x000f8000
    219 #define UPROPS_SB_SHIFT         15
    220 
    221 #define UPROPS_WB_MASK          0x00007c00
    222 #define UPROPS_WB_SHIFT         10
    223 
    224 #define UPROPS_GCB_MASK         0x000003e0
    225 #define UPROPS_GCB_SHIFT        5
    226 
    227 #define UPROPS_DT_MASK          0x0000001f
    228 
    229 /**
    230  * Gets the main properties value for a code point.
    231  * Implemented in uchar.c for uprops.cpp.
    232  */
    233 U_CFUNC uint32_t
    234 u_getMainProperties(UChar32 c);
    235 
    236 /**
    237  * Get a properties vector word for a code point.
    238  * Implemented in uchar.c for uprops.cpp.
    239  * @return 0 if no data or illegal argument
    240  */
    241 U_CFUNC uint32_t
    242 u_getUnicodeProperties(UChar32 c, int32_t column);
    243 
    244 /**
    245  * Get the the maximum values for some enum/int properties.
    246  * Use the same column numbers as for u_getUnicodeProperties().
    247  * The returned value will contain maximum values stored in the same bit fields
    248  * as where the enum values are stored in the u_getUnicodeProperties()
    249  * return values for the same columns.
    250  *
    251  * Valid columns are those for properties words that contain enumerated values.
    252  * (ICU 2.6: columns 0 and 2)
    253  * For other column numbers, this function will return 0.
    254  *
    255  * @internal
    256  */
    257 U_CFUNC int32_t
    258 uprv_getMaxValues(int32_t column);
    259 
    260 /**
    261  * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
    262  * @internal
    263  */
    264 U_CFUNC UBool
    265 u_isalnumPOSIX(UChar32 c);
    266 
    267 /**
    268  * Checks if c is in
    269  * [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}]
    270  * with space=\p{Whitespace} and Control=Cc.
    271  * Implements UCHAR_POSIX_GRAPH.
    272  * @internal
    273  */
    274 U_CFUNC UBool
    275 u_isgraphPOSIX(UChar32 c);
    276 
    277 /**
    278  * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
    279  * Implements UCHAR_POSIX_PRINT.
    280  * @internal
    281  */
    282 U_CFUNC UBool
    283 u_isprintPOSIX(UChar32 c);
    284 
    285 /** Turn a bit index into a bit flag. @internal */
    286 #define FLAG(n) ((uint32_t)1<<(n))
    287 
    288 /** Flags for general categories in the order of UCharCategory. @internal */
    289 #define _Cn     FLAG(U_GENERAL_OTHER_TYPES)
    290 #define _Lu     FLAG(U_UPPERCASE_LETTER)
    291 #define _Ll     FLAG(U_LOWERCASE_LETTER)
    292 #define _Lt     FLAG(U_TITLECASE_LETTER)
    293 #define _Lm     FLAG(U_MODIFIER_LETTER)
    294 /* #define _Lo     FLAG(U_OTHER_LETTER) -- conflicts with MS Visual Studio 9.0 xiosbase */
    295 #define _Mn     FLAG(U_NON_SPACING_MARK)
    296 #define _Me     FLAG(U_ENCLOSING_MARK)
    297 #define _Mc     FLAG(U_COMBINING_SPACING_MARK)
    298 #define _Nd     FLAG(U_DECIMAL_DIGIT_NUMBER)
    299 #define _Nl     FLAG(U_LETTER_NUMBER)
    300 #define _No     FLAG(U_OTHER_NUMBER)
    301 #define _Zs     FLAG(U_SPACE_SEPARATOR)
    302 #define _Zl     FLAG(U_LINE_SEPARATOR)
    303 #define _Zp     FLAG(U_PARAGRAPH_SEPARATOR)
    304 #define _Cc     FLAG(U_CONTROL_CHAR)
    305 #define _Cf     FLAG(U_FORMAT_CHAR)
    306 #define _Co     FLAG(U_PRIVATE_USE_CHAR)
    307 #define _Cs     FLAG(U_SURROGATE)
    308 #define _Pd     FLAG(U_DASH_PUNCTUATION)
    309 #define _Ps     FLAG(U_START_PUNCTUATION)
    310 /* #define _Pe     FLAG(U_END_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 xlocnum */
    311 /* #define _Pc     FLAG(U_CONNECTOR_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 streambuf */
    312 #define _Po     FLAG(U_OTHER_PUNCTUATION)
    313 #define _Sm     FLAG(U_MATH_SYMBOL)
    314 #define _Sc     FLAG(U_CURRENCY_SYMBOL)
    315 #define _Sk     FLAG(U_MODIFIER_SYMBOL)
    316 #define _So     FLAG(U_OTHER_SYMBOL)
    317 #define _Pi     FLAG(U_INITIAL_PUNCTUATION)
    318 /* #define _Pf     FLAG(U_FINAL_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 streambuf */
    319 
    320 /** Some code points. @internal */
    321 enum {
    322     TAB     =0x0009,
    323     LF      =0x000a,
    324     FF      =0x000c,
    325     CR      =0x000d,
    326     U_A     =0x0041,
    327     U_F     =0x0046,
    328     U_Z     =0x005a,
    329     U_a     =0x0061,
    330     U_f     =0x0066,
    331     U_z     =0x007a,
    332     DEL     =0x007f,
    333     NL      =0x0085,
    334     NBSP    =0x00a0,
    335     CGJ     =0x034f,
    336     FIGURESP=0x2007,
    337     HAIRSP  =0x200a,
    338     ZWNJ    =0x200c,
    339     ZWJ     =0x200d,
    340     RLM     =0x200f,
    341     NNBSP   =0x202f,
    342     WJ      =0x2060,
    343     INHSWAP =0x206a,
    344     NOMDIG  =0x206f,
    345     U_FW_A  =0xff21,
    346     U_FW_F  =0xff26,
    347     U_FW_Z  =0xff3a,
    348     U_FW_a  =0xff41,
    349     U_FW_f  =0xff46,
    350     U_FW_z  =0xff5a,
    351     ZWNBSP  =0xfeff
    352 };
    353 
    354 /**
    355  * Get the maximum length of a (regular/1.0/extended) character name.
    356  * @return 0 if no character names available.
    357  */
    358 U_CAPI int32_t U_EXPORT2
    359 uprv_getMaxCharNameLength(void);
    360 
    361 /**
    362  * Fills set with characters that are used in Unicode character names.
    363  * Includes all characters that are used in regular/Unicode 1.0/extended names.
    364  * Just empties the set if no character names are available.
    365  * @param sa USetAdder to receive characters.
    366  */
    367 U_CAPI void U_EXPORT2
    368 uprv_getCharNameCharacters(const USetAdder *sa);
    369 
    370 /**
    371  * Constants for which data and implementation files provide which properties.
    372  * Used by UnicodeSet for service-specific property enumeration.
    373  * @internal
    374  */
    375 enum UPropertySource {
    376     /** No source, not a supported property. */
    377     UPROPS_SRC_NONE,
    378     /** From uchar.c/uprops.icu main trie */
    379     UPROPS_SRC_CHAR,
    380     /** From uchar.c/uprops.icu properties vectors trie */
    381     UPROPS_SRC_PROPSVEC,
    382     /** From unames.c/unames.icu */
    383     UPROPS_SRC_NAMES,
    384     /** From ucase.c/ucase.icu */
    385     UPROPS_SRC_CASE,
    386     /** From ubidi_props.c/ubidi.icu */
    387     UPROPS_SRC_BIDI,
    388     /** From uchar.c/uprops.icu main trie as well as properties vectors trie */
    389     UPROPS_SRC_CHAR_AND_PROPSVEC,
    390     /** From ucase.c/ucase.icu as well as unorm.cpp/unorm.icu */
    391     UPROPS_SRC_CASE_AND_NORM,
    392     /** From normalizer2impl.cpp/nfc.nrm */
    393     UPROPS_SRC_NFC,
    394     /** From normalizer2impl.cpp/nfkc.nrm */
    395     UPROPS_SRC_NFKC,
    396     /** From normalizer2impl.cpp/nfkc_cf.nrm */
    397     UPROPS_SRC_NFKC_CF,
    398     /** From normalizer2impl.cpp/nfc.nrm canonical iterator data */
    399     UPROPS_SRC_NFC_CANON_ITER,
    400     // Text layout properties.
    401     UPROPS_SRC_INPC,
    402     UPROPS_SRC_INSC,
    403     UPROPS_SRC_VO,
    404     /** One more than the highest UPropertySource (UPROPS_SRC_) constant. */
    405     UPROPS_SRC_COUNT
    406 };
    407 typedef enum UPropertySource UPropertySource;
    408 
    409 /**
    410  * @see UPropertySource
    411  * @internal
    412  */
    413 U_CFUNC UPropertySource U_EXPORT2
    414 uprops_getSource(UProperty which);
    415 
    416 /**
    417  * Enumerate uprops.icu's main data trie and add the
    418  * start of each range of same properties to the set.
    419  * @internal
    420  */
    421 U_CFUNC void U_EXPORT2
    422 uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
    423 
    424 /**
    425  * Enumerate uprops.icu's properties vectors trie and add the
    426  * start of each range of same properties to the set.
    427  * @internal
    428  */
    429 U_CFUNC void U_EXPORT2
    430 upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
    431 
    432 U_CFUNC void U_EXPORT2
    433 uprops_addPropertyStarts(UPropertySource src, const USetAdder *sa, UErrorCode *pErrorCode);
    434 
    435 /**
    436  * Return a set of characters for property enumeration.
    437  * For each two consecutive characters (start, limit) in the set,
    438  * all of the properties for start..limit-1 are all the same.
    439  *
    440  * @param sa USetAdder to receive result. Existing contents are lost.
    441  * @internal
    442  */
    443 /*U_CFUNC void U_EXPORT2
    444 uprv_getInclusions(const USetAdder *sa, UErrorCode *pErrorCode);
    445 */
    446 
    447 /**
    448  * Swap the ICU Unicode character names file. See uchar.c.
    449  * @internal
    450  */
    451 U_CAPI int32_t U_EXPORT2
    452 uchar_swapNames(const UDataSwapper *ds,
    453                 const void *inData, int32_t length, void *outData,
    454                 UErrorCode *pErrorCode);
    455 
    456 #ifdef __cplusplus
    457 
    458 U_NAMESPACE_BEGIN
    459 
    460 class UnicodeSet;
    461 
    462 class CharacterProperties {
    463 public:
    464     CharacterProperties() = delete;
    465     static const UnicodeSet *getInclusionsForProperty(UProperty prop, UErrorCode &errorCode);
    466 };
    467 
    468 // implemented in uniset_props.cpp
    469 U_CFUNC UnicodeSet *
    470 uniset_getUnicode32Instance(UErrorCode &errorCode);
    471 
    472 U_NAMESPACE_END
    473 
    474 #endif
    475 
    476 #endif
    477