Coverage Report

Created: 2025-07-11 06:23

/src/icu/source/common/uchar.cpp
Line
Count
Source (jump to first uncovered line)
1
// © 2016 and later: Unicode, Inc. and others.
2
// License & terms of use: http://www.unicode.org/copyright.html
3
/*
4
********************************************************************************
5
*   Copyright (C) 1996-2016, International Business Machines
6
*   Corporation and others.  All Rights Reserved.
7
********************************************************************************
8
*
9
* File UCHAR.C
10
*
11
* Modification History:
12
*
13
*   Date        Name        Description
14
*   04/02/97    aliu        Creation.
15
*   4/15/99     Madhu       Updated all the function definitions for C Implementation
16
*   5/20/99     Madhu       Added the function u_getVersion()
17
*   8/19/1999   srl         Upgraded scripts to Unicode3.0 
18
*   11/11/1999  weiv        added u_isalnum(), cleaned comments
19
*   01/11/2000  helena      Renamed u_getVersion to u_getUnicodeVersion.
20
*   06/20/2000  helena      OS/400 port changes; mostly typecast.
21
******************************************************************************
22
*/
23
24
#include "unicode/utypes.h"
25
#include "unicode/uchar.h"
26
#include "unicode/uscript.h"
27
#include "unicode/udata.h"
28
#include "uassert.h"
29
#include "cmemory.h"
30
#include "ucln_cmn.h"
31
#include "utrie2.h"
32
#include "udataswp.h"
33
#include "uprops.h"
34
#include "ustr_imp.h"
35
36
/* uchar_props_data.h is machine-generated by genprops --csource */
37
#define INCLUDED_FROM_UCHAR_C
38
#include "uchar_props_data.h"
39
40
/* constants and macros for access to the data ------------------------------ */
41
42
/* getting a uint32_t properties word from the data */
43
6.18M
#define GET_PROPS(c, result) ((result)=UTRIE2_GET16(&propsTrie, c));
44
45
U_CFUNC UBool
46
0
uprv_haveProperties(UErrorCode *pErrorCode) {
47
0
    if(U_FAILURE(*pErrorCode)) {
48
0
        return FALSE;
49
0
    }
50
0
    return TRUE;
51
0
}
52
53
/* API functions ------------------------------------------------------------ */
54
55
/* Gets the Unicode character's general category.*/
56
U_CAPI int8_t U_EXPORT2
57
6.18M
u_charType(UChar32 c) {
58
6.18M
    uint32_t props;
59
6.18M
    GET_PROPS(c, props);
60
6.18M
    return (int8_t)GET_CATEGORY(props);
61
6.18M
}
62
63
/* Enumerate all code points with their general categories. */
64
struct _EnumTypeCallback {
65
    UCharEnumTypeRange *enumRange;
66
    const void *context;
67
};
68
69
static uint32_t U_CALLCONV
70
0
_enumTypeValue(const void *context, uint32_t value) {
71
0
    (void)context;
72
0
    return GET_CATEGORY(value);
73
0
}
74
75
static UBool U_CALLCONV
76
0
_enumTypeRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
77
    /* just cast the value to UCharCategory */
78
0
    return ((struct _EnumTypeCallback *)context)->
79
0
        enumRange(((struct _EnumTypeCallback *)context)->context,
80
0
                  start, end+1, (UCharCategory)value);
81
0
}
82
83
U_CAPI void U_EXPORT2
84
0
u_enumCharTypes(UCharEnumTypeRange *enumRange, const void *context) {
85
0
    struct _EnumTypeCallback callback;
86
87
0
    if(enumRange==NULL) {
88
0
        return;
89
0
    }
90
91
0
    callback.enumRange=enumRange;
92
0
    callback.context=context;
93
0
    utrie2_enum(&propsTrie, _enumTypeValue, _enumTypeRange, &callback);
94
0
}
95
96
/* Checks if ch is a lower case letter.*/
97
U_CAPI UBool U_EXPORT2
98
0
u_islower(UChar32 c) {
99
0
    uint32_t props;
100
0
    GET_PROPS(c, props);
101
0
    return (UBool)(GET_CATEGORY(props)==U_LOWERCASE_LETTER);
102
0
}
103
104
/* Checks if ch is an upper case letter.*/
105
U_CAPI UBool U_EXPORT2
106
0
u_isupper(UChar32 c) {
107
0
    uint32_t props;
108
0
    GET_PROPS(c, props);
109
0
    return (UBool)(GET_CATEGORY(props)==U_UPPERCASE_LETTER);
110
0
}
111
112
/* Checks if ch is a title case letter; usually upper case letters.*/
113
U_CAPI UBool U_EXPORT2
114
0
u_istitle(UChar32 c) {
115
0
    uint32_t props;
116
0
    GET_PROPS(c, props);
117
0
    return (UBool)(GET_CATEGORY(props)==U_TITLECASE_LETTER);
118
0
}
119
120
/* Checks if ch is a decimal digit. */
121
U_CAPI UBool U_EXPORT2
122
0
u_isdigit(UChar32 c) {
123
0
    uint32_t props;
124
0
    GET_PROPS(c, props);
125
0
    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
126
0
}
127
128
U_CAPI UBool U_EXPORT2
129
0
u_isxdigit(UChar32 c) {
130
0
    uint32_t props;
131
132
    /* check ASCII and Fullwidth ASCII a-fA-F */
133
0
    if(
134
0
        (c<=0x66 && c>=0x41 && (c<=0x46 || c>=0x61)) ||
135
0
        (c>=0xff21 && c<=0xff46 && (c<=0xff26 || c>=0xff41))
136
0
    ) {
137
0
        return TRUE;
138
0
    }
139
140
0
    GET_PROPS(c, props);
141
0
    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
142
0
}
143
144
/* Checks if the Unicode character is a letter.*/
145
U_CAPI UBool U_EXPORT2
146
0
u_isalpha(UChar32 c) {
147
0
    uint32_t props;
148
0
    GET_PROPS(c, props);
149
0
    return (UBool)((CAT_MASK(props)&U_GC_L_MASK)!=0);
150
0
}
151
152
U_CAPI UBool U_EXPORT2
153
0
u_isUAlphabetic(UChar32 c) {
154
0
    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_ALPHABETIC))!=0;
155
0
}
156
157
/* Checks if c is a letter or a decimal digit */
158
U_CAPI UBool U_EXPORT2
159
0
u_isalnum(UChar32 c) {
160
0
    uint32_t props;
161
0
    GET_PROPS(c, props);
162
0
    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_ND_MASK))!=0);
163
0
}
164
165
/**
166
 * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
167
 * @internal
168
 */
169
U_CFUNC UBool
170
0
u_isalnumPOSIX(UChar32 c) {
171
0
    return (UBool)(u_isUAlphabetic(c) || u_isdigit(c));
172
0
}
173
174
/* Checks if ch is a unicode character with assigned character type.*/
175
U_CAPI UBool U_EXPORT2
176
0
u_isdefined(UChar32 c) {
177
0
    uint32_t props;
178
0
    GET_PROPS(c, props);
179
0
    return (UBool)(GET_CATEGORY(props)!=0);
180
0
}
181
182
/* Checks if the Unicode character is a base form character that can take a diacritic.*/
183
U_CAPI UBool U_EXPORT2
184
0
u_isbase(UChar32 c) {
185
0
    uint32_t props;
186
0
    GET_PROPS(c, props);
187
0
    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_N_MASK|U_GC_MC_MASK|U_GC_ME_MASK))!=0);
188
0
}
189
190
/* Checks if the Unicode character is a control character.*/
191
U_CAPI UBool U_EXPORT2
192
0
u_iscntrl(UChar32 c) {
193
0
    uint32_t props;
194
0
    GET_PROPS(c, props);
195
0
    return (UBool)((CAT_MASK(props)&(U_GC_CC_MASK|U_GC_CF_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK))!=0);
196
0
}
197
198
U_CAPI UBool U_EXPORT2
199
0
u_isISOControl(UChar32 c) {
200
0
    return (uint32_t)c<=0x9f && (c<=0x1f || c>=0x7f);
201
0
}
202
203
/* Some control characters that are used as space. */
204
#define IS_THAT_CONTROL_SPACE(c) \
205
0
    (c<=0x9f && ((c>=TAB && c<=CR) || (c>=0x1c && c <=0x1f) || c==NL))
206
207
/* Java has decided that U+0085 New Line is not whitespace any more. */
208
#define IS_THAT_ASCII_CONTROL_SPACE(c) \
209
0
    (c<=0x1f && c>=TAB && (c<=CR || c>=0x1c))
210
211
/* Checks if the Unicode character is a space character.*/
212
U_CAPI UBool U_EXPORT2
213
0
u_isspace(UChar32 c) {
214
0
    uint32_t props;
215
0
    GET_PROPS(c, props);
216
0
    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0 || IS_THAT_CONTROL_SPACE(c));
217
0
}
218
219
U_CAPI UBool U_EXPORT2
220
0
u_isJavaSpaceChar(UChar32 c) {
221
0
    uint32_t props;
222
0
    GET_PROPS(c, props);
223
0
    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0);
224
0
}
225
226
/* Checks if the Unicode character is a whitespace character.*/
227
U_CAPI UBool U_EXPORT2
228
0
u_isWhitespace(UChar32 c) {
229
0
    uint32_t props;
230
0
    GET_PROPS(c, props);
231
0
    return (UBool)(
232
0
                ((CAT_MASK(props)&U_GC_Z_MASK)!=0 &&
233
0
                    c!=NBSP && c!=FIGURESP && c!=NNBSP) || /* exclude no-break spaces */
234
0
                IS_THAT_ASCII_CONTROL_SPACE(c)
235
0
           );
236
0
}
237
238
U_CAPI UBool U_EXPORT2
239
0
u_isblank(UChar32 c) {
240
0
    if((uint32_t)c<=0x9f) {
241
0
        return c==9 || c==0x20; /* TAB or SPACE */
242
0
    } else {
243
        /* Zs */
244
0
        uint32_t props;
245
0
        GET_PROPS(c, props);
246
0
        return (UBool)(GET_CATEGORY(props)==U_SPACE_SEPARATOR);
247
0
    }
248
0
}
249
250
U_CAPI UBool U_EXPORT2
251
0
u_isUWhiteSpace(UChar32 c) {
252
0
    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_WHITE_SPACE))!=0;
253
0
}
254
255
/* Checks if the Unicode character is printable.*/
256
U_CAPI UBool U_EXPORT2
257
0
u_isprint(UChar32 c) {
258
0
    uint32_t props;
259
0
    GET_PROPS(c, props);
260
    /* comparing ==0 returns FALSE for the categories mentioned */
261
0
    return (UBool)((CAT_MASK(props)&U_GC_C_MASK)==0);
262
0
}
263
264
/**
265
 * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
266
 * Implements UCHAR_POSIX_PRINT.
267
 * @internal
268
 */
269
U_CFUNC UBool
270
0
u_isprintPOSIX(UChar32 c) {
271
0
    uint32_t props;
272
0
    GET_PROPS(c, props);
273
    /*
274
     * The only cntrl character in graph+blank is TAB (in blank).
275
     * Here we implement (blank-TAB)=Zs instead of calling u_isblank().
276
     */
277
0
    return (UBool)((GET_CATEGORY(props)==U_SPACE_SEPARATOR) || u_isgraphPOSIX(c));
278
0
}
279
280
U_CAPI UBool U_EXPORT2
281
0
u_isgraph(UChar32 c) {
282
0
    uint32_t props;
283
0
    GET_PROPS(c, props);
284
    /* comparing ==0 returns FALSE for the categories mentioned */
285
0
    return (UBool)((CAT_MASK(props)&
286
0
                    (U_GC_CC_MASK|U_GC_CF_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
287
0
                   ==0);
288
0
}
289
290
/**
291
 * Checks if c is in
292
 * [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}]
293
 * with space=\p{Whitespace} and Control=Cc.
294
 * Implements UCHAR_POSIX_GRAPH.
295
 * @internal
296
 */
297
U_CFUNC UBool
298
0
u_isgraphPOSIX(UChar32 c) {
299
0
    uint32_t props;
300
0
    GET_PROPS(c, props);
301
    /* \p{space}\p{gc=Control} == \p{gc=Z}\p{Control} */
302
    /* comparing ==0 returns FALSE for the categories mentioned */
303
0
    return (UBool)((CAT_MASK(props)&
304
0
                    (U_GC_CC_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
305
0
                   ==0);
306
0
}
307
308
U_CAPI UBool U_EXPORT2
309
0
u_ispunct(UChar32 c) {
310
0
    uint32_t props;
311
0
    GET_PROPS(c, props);
312
0
    return (UBool)((CAT_MASK(props)&U_GC_P_MASK)!=0);
313
0
}
314
315
/* Checks if the Unicode character can start a Unicode identifier.*/
316
U_CAPI UBool U_EXPORT2
317
0
u_isIDStart(UChar32 c) {
318
    /* same as u_isalpha() */
319
0
    uint32_t props;
320
0
    GET_PROPS(c, props);
321
0
    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_NL_MASK))!=0);
322
0
}
323
324
/* Checks if the Unicode character can be a Unicode identifier part other than starting the
325
 identifier.*/
326
U_CAPI UBool U_EXPORT2
327
0
u_isIDPart(UChar32 c) {
328
0
    uint32_t props;
329
0
    GET_PROPS(c, props);
330
0
    return (UBool)(
331
0
           (CAT_MASK(props)&
332
0
            (U_GC_ND_MASK|U_GC_NL_MASK|
333
0
             U_GC_L_MASK|
334
0
             U_GC_PC_MASK|U_GC_MC_MASK|U_GC_MN_MASK)
335
0
           )!=0 ||
336
0
           u_isIDIgnorable(c));
337
0
}
338
339
/*Checks if the Unicode character can be ignorable in a Java or Unicode identifier.*/
340
U_CAPI UBool U_EXPORT2
341
0
u_isIDIgnorable(UChar32 c) {
342
0
    if(c<=0x9f) {
343
0
        return u_isISOControl(c) && !IS_THAT_ASCII_CONTROL_SPACE(c);
344
0
    } else {
345
0
        uint32_t props;
346
0
        GET_PROPS(c, props);
347
0
        return (UBool)(GET_CATEGORY(props)==U_FORMAT_CHAR);
348
0
    }
349
0
}
350
351
/*Checks if the Unicode character can start a Java identifier.*/
352
U_CAPI UBool U_EXPORT2
353
0
u_isJavaIDStart(UChar32 c) {
354
0
    uint32_t props;
355
0
    GET_PROPS(c, props);
356
0
    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_SC_MASK|U_GC_PC_MASK))!=0);
357
0
}
358
359
/*Checks if the Unicode character can be a Java identifier part other than starting the
360
 * identifier.
361
 */
362
U_CAPI UBool U_EXPORT2
363
0
u_isJavaIDPart(UChar32 c) {
364
0
    uint32_t props;
365
0
    GET_PROPS(c, props);
366
0
    return (UBool)(
367
0
           (CAT_MASK(props)&
368
0
            (U_GC_ND_MASK|U_GC_NL_MASK|
369
0
             U_GC_L_MASK|
370
0
             U_GC_SC_MASK|U_GC_PC_MASK|
371
0
             U_GC_MC_MASK|U_GC_MN_MASK)
372
0
           )!=0 ||
373
0
           u_isIDIgnorable(c));
374
0
}
375
376
U_CAPI int32_t U_EXPORT2
377
0
u_charDigitValue(UChar32 c) {
378
0
    uint32_t props;
379
0
    int32_t value;
380
0
    GET_PROPS(c, props);
381
0
    value=(int32_t)GET_NUMERIC_TYPE_VALUE(props)-UPROPS_NTV_DECIMAL_START;
382
0
    if(value<=9) {
383
0
        return value;
384
0
    } else {
385
0
        return -1;
386
0
    }
387
0
}
388
389
U_CAPI double U_EXPORT2
390
0
u_getNumericValue(UChar32 c) {
391
0
    uint32_t props;
392
0
    int32_t ntv;
393
0
    GET_PROPS(c, props);
394
0
    ntv=(int32_t)GET_NUMERIC_TYPE_VALUE(props);
395
396
0
    if(ntv==UPROPS_NTV_NONE) {
397
0
        return U_NO_NUMERIC_VALUE;
398
0
    } else if(ntv<UPROPS_NTV_DIGIT_START) {
399
        /* decimal digit */
400
0
        return ntv-UPROPS_NTV_DECIMAL_START;
401
0
    } else if(ntv<UPROPS_NTV_NUMERIC_START) {
402
        /* other digit */
403
0
        return ntv-UPROPS_NTV_DIGIT_START;
404
0
    } else if(ntv<UPROPS_NTV_FRACTION_START) {
405
        /* small integer */
406
0
        return ntv-UPROPS_NTV_NUMERIC_START;
407
0
    } else if(ntv<UPROPS_NTV_LARGE_START) {
408
        /* fraction */
409
0
        int32_t numerator=(ntv>>4)-12;
410
0
        int32_t denominator=(ntv&0xf)+1;
411
0
        return (double)numerator/denominator;
412
0
    } else if(ntv<UPROPS_NTV_BASE60_START) {
413
        /* large, single-significant-digit integer */
414
0
        double numValue;
415
0
        int32_t mant=(ntv>>5)-14;
416
0
        int32_t exp=(ntv&0x1f)+2;
417
0
        numValue=mant;
418
419
        /* multiply by 10^exp without math.h */
420
0
        while(exp>=4) {
421
0
            numValue*=10000.;
422
0
            exp-=4;
423
0
        }
424
0
        switch(exp) {
425
0
        case 3:
426
0
            numValue*=1000.;
427
0
            break;
428
0
        case 2:
429
0
            numValue*=100.;
430
0
            break;
431
0
        case 1:
432
0
            numValue*=10.;
433
0
            break;
434
0
        case 0:
435
0
        default:
436
0
            break;
437
0
        }
438
439
0
        return numValue;
440
0
    } else if(ntv<UPROPS_NTV_FRACTION20_START) {
441
        /* sexagesimal (base 60) integer */
442
0
        int32_t numValue=(ntv>>2)-0xbf;
443
0
        int32_t exp=(ntv&3)+1;
444
445
0
        switch(exp) {
446
0
        case 4:
447
0
            numValue*=60*60*60*60;
448
0
            break;
449
0
        case 3:
450
0
            numValue*=60*60*60;
451
0
            break;
452
0
        case 2:
453
0
            numValue*=60*60;
454
0
            break;
455
0
        case 1:
456
0
            numValue*=60;
457
0
            break;
458
0
        case 0:
459
0
        default:
460
0
            break;
461
0
        }
462
463
0
        return numValue;
464
0
    } else if(ntv<UPROPS_NTV_RESERVED_START) {
465
        // fraction-20 e.g. 3/80
466
0
        int32_t frac20=ntv-UPROPS_NTV_FRACTION20_START;  // 0..0x17
467
0
        int32_t numerator=2*(frac20&3)+1;
468
0
        int32_t denominator=20<<(frac20>>2);
469
0
        return (double)numerator/denominator;
470
0
    } else {
471
        /* reserved */
472
0
        return U_NO_NUMERIC_VALUE;
473
0
    }
474
0
}
475
476
U_CAPI int32_t U_EXPORT2
477
0
u_digit(UChar32 ch, int8_t radix) {
478
0
    int8_t value;
479
0
    if((uint8_t)(radix-2)<=(36-2)) {
480
0
        value=(int8_t)u_charDigitValue(ch);
481
0
        if(value<0) {
482
            /* ch is not a decimal digit, try latin letters */
483
0
            if(ch>=0x61 && ch<=0x7A) {
484
0
                value=(int8_t)(ch-0x57);  /* ch - 'a' + 10 */
485
0
            } else if(ch>=0x41 && ch<=0x5A) {
486
0
                value=(int8_t)(ch-0x37);  /* ch - 'A' + 10 */
487
0
            } else if(ch>=0xFF41 && ch<=0xFF5A) {
488
0
                value=(int8_t)(ch-0xFF37);  /* fullwidth ASCII a-z */
489
0
            } else if(ch>=0xFF21 && ch<=0xFF3A) {
490
0
                value=(int8_t)(ch-0xFF17);  /* fullwidth ASCII A-Z */
491
0
            }
492
0
        }
493
0
    } else {
494
0
        value=-1;   /* invalid radix */
495
0
    }
496
0
    return (int8_t)((value<radix) ? value : -1);
497
0
}
498
499
U_CAPI UChar32 U_EXPORT2
500
0
u_forDigit(int32_t digit, int8_t radix) {
501
0
    if((uint8_t)(radix-2)>(36-2) || (uint32_t)digit>=(uint32_t)radix) {
502
0
        return 0;
503
0
    } else if(digit<10) {
504
0
        return (UChar32)(0x30+digit);
505
0
    } else {
506
0
        return (UChar32)((0x61-10)+digit);
507
0
    }
508
0
}
509
510
/* miscellaneous, and support for uprops.cpp -------------------------------- */
511
512
U_CAPI void U_EXPORT2
513
0
u_getUnicodeVersion(UVersionInfo versionArray) {
514
0
    if(versionArray!=NULL) {
515
0
        uprv_memcpy(versionArray, dataVersion, U_MAX_VERSION_LENGTH);
516
0
    }
517
0
}
518
519
U_CFUNC uint32_t
520
0
u_getMainProperties(UChar32 c) {
521
0
    uint32_t props;
522
0
    GET_PROPS(c, props);
523
0
    return props;
524
0
}
525
526
U_CFUNC uint32_t
527
0
u_getUnicodeProperties(UChar32 c, int32_t column) {
528
0
    U_ASSERT(column>=0);
529
0
    if(column>=propsVectorsColumns) {
530
0
        return 0;
531
0
    } else {
532
0
        uint16_t vecIndex=UTRIE2_GET16(&propsVectorsTrie, c);
533
0
        return propsVectors[vecIndex+column];
534
0
    }
535
0
}
536
537
U_CFUNC int32_t
538
0
uprv_getMaxValues(int32_t column) {
539
0
    switch(column) {
540
0
    case 0:
541
0
        return indexes[UPROPS_MAX_VALUES_INDEX];
542
0
    case 2:
543
0
        return indexes[UPROPS_MAX_VALUES_2_INDEX];
544
0
    default:
545
0
        return 0;
546
0
    }
547
0
}
548
549
U_CAPI void U_EXPORT2
550
0
u_charAge(UChar32 c, UVersionInfo versionArray) {
551
0
    if(versionArray!=NULL) {
552
0
        uint32_t version=u_getUnicodeProperties(c, 0)>>UPROPS_AGE_SHIFT;
553
0
        versionArray[0]=(uint8_t)(version>>4);
554
0
        versionArray[1]=(uint8_t)(version&0xf);
555
0
        versionArray[2]=versionArray[3]=0;
556
0
    }
557
0
}
558
559
U_CAPI UScriptCode U_EXPORT2
560
0
uscript_getScript(UChar32 c, UErrorCode *pErrorCode) {
561
0
    uint32_t scriptX;
562
0
    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
563
0
        return USCRIPT_INVALID_CODE;
564
0
    }
565
0
    if((uint32_t)c>0x10ffff) {
566
0
        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
567
0
        return USCRIPT_INVALID_CODE;
568
0
    }
569
0
    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
570
0
    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
571
0
        return (UScriptCode)scriptX;
572
0
    } else if(scriptX<UPROPS_SCRIPT_X_WITH_INHERITED) {
573
0
        return USCRIPT_COMMON;
574
0
    } else if(scriptX<UPROPS_SCRIPT_X_WITH_OTHER) {
575
0
        return USCRIPT_INHERITED;
576
0
    } else {
577
0
        return (UScriptCode)scriptExtensions[scriptX&UPROPS_SCRIPT_MASK];
578
0
    }
579
0
}
580
581
U_CAPI UBool U_EXPORT2
582
0
uscript_hasScript(UChar32 c, UScriptCode sc) {
583
0
    const uint16_t *scx;
584
0
    uint32_t scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
585
0
    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
586
0
        return sc==(UScriptCode)scriptX;
587
0
    }
588
589
0
    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
590
0
    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
591
0
        scx=scriptExtensions+scx[1];
592
0
    }
593
0
    if(sc>=USCRIPT_CODE_LIMIT) {
594
        /* Guard against bogus input that would make us go past the Script_Extensions terminator. */
595
0
        return FALSE;
596
0
    }
597
0
    while(sc>*scx) {
598
0
        ++scx;
599
0
    }
600
0
    return sc==(*scx&0x7fff);
601
0
}
602
603
U_CAPI int32_t U_EXPORT2
604
uscript_getScriptExtensions(UChar32 c,
605
                            UScriptCode *scripts, int32_t capacity,
606
0
                            UErrorCode *pErrorCode) {
607
0
    uint32_t scriptX;
608
0
    int32_t length;
609
0
    const uint16_t *scx;
610
0
    uint16_t sx;
611
0
    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
612
0
        return 0;
613
0
    }
614
0
    if(capacity<0 || (capacity>0 && scripts==NULL)) {
615
0
        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
616
0
        return 0;
617
0
    }
618
0
    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
619
0
    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
620
0
        if(capacity==0) {
621
0
            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
622
0
        } else {
623
0
            scripts[0]=(UScriptCode)scriptX;
624
0
        }
625
0
        return 1;
626
0
    }
627
628
0
    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
629
0
    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
630
0
        scx=scriptExtensions+scx[1];
631
0
    }
632
0
    length=0;
633
0
    do {
634
0
        sx=*scx++;
635
0
        if(length<capacity) {
636
0
            scripts[length]=(UScriptCode)(sx&0x7fff);
637
0
        }
638
0
        ++length;
639
0
    } while(sx<0x8000);
640
0
    if(length>capacity) {
641
0
        *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
642
0
    }
643
0
    return length;
644
0
}
645
646
U_CAPI UBlockCode U_EXPORT2
647
0
ublock_getCode(UChar32 c) {
648
0
    return (UBlockCode)((u_getUnicodeProperties(c, 0)&UPROPS_BLOCK_MASK)>>UPROPS_BLOCK_SHIFT);
649
0
}
650
651
/* property starts for UnicodeSet ------------------------------------------- */
652
653
static UBool U_CALLCONV
654
0
_enumPropertyStartsRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
655
    /* add the start code point to the USet */
656
0
    const USetAdder *sa=(const USetAdder *)context;
657
0
    sa->add(sa->set, start);
658
0
    (void)end;
659
0
    (void)value;
660
0
    return TRUE;
661
0
}
662
663
0
#define USET_ADD_CP_AND_NEXT(sa, cp) sa->add(sa->set, cp); sa->add(sa->set, cp+1)
664
665
U_CFUNC void U_EXPORT2
666
0
uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
667
0
    if(U_FAILURE(*pErrorCode)) {
668
0
        return;
669
0
    }
670
671
    /* add the start code point of each same-value range of the main trie */
672
0
    utrie2_enum(&propsTrie, NULL, _enumPropertyStartsRange, sa);
673
674
    /* add code points with hardcoded properties, plus the ones following them */
675
676
    /* add for u_isblank() */
677
0
    USET_ADD_CP_AND_NEXT(sa, TAB);
678
679
    /* add for IS_THAT_CONTROL_SPACE() */
680
0
    sa->add(sa->set, CR+1); /* range TAB..CR */
681
0
    sa->add(sa->set, 0x1c);
682
0
    sa->add(sa->set, 0x1f+1);
683
0
    USET_ADD_CP_AND_NEXT(sa, NL);
684
685
    /* add for u_isIDIgnorable() what was not added above */
686
0
    sa->add(sa->set, DEL); /* range DEL..NBSP-1, NBSP added below */
687
0
    sa->add(sa->set, HAIRSP);
688
0
    sa->add(sa->set, RLM+1);
689
0
    sa->add(sa->set, INHSWAP);
690
0
    sa->add(sa->set, NOMDIG+1);
691
0
    USET_ADD_CP_AND_NEXT(sa, ZWNBSP);
692
693
    /* add no-break spaces for u_isWhitespace() what was not added above */
694
0
    USET_ADD_CP_AND_NEXT(sa, NBSP);
695
0
    USET_ADD_CP_AND_NEXT(sa, FIGURESP);
696
0
    USET_ADD_CP_AND_NEXT(sa, NNBSP);
697
698
    /* add for u_digit() */
699
0
    sa->add(sa->set, U_a);
700
0
    sa->add(sa->set, U_z+1);
701
0
    sa->add(sa->set, U_A);
702
0
    sa->add(sa->set, U_Z+1);
703
0
    sa->add(sa->set, U_FW_a);
704
0
    sa->add(sa->set, U_FW_z+1);
705
0
    sa->add(sa->set, U_FW_A);
706
0
    sa->add(sa->set, U_FW_Z+1);
707
708
    /* add for u_isxdigit() */
709
0
    sa->add(sa->set, U_f+1);
710
0
    sa->add(sa->set, U_F+1);
711
0
    sa->add(sa->set, U_FW_f+1);
712
0
    sa->add(sa->set, U_FW_F+1);
713
714
    /* add for UCHAR_DEFAULT_IGNORABLE_CODE_POINT what was not added above */
715
0
    sa->add(sa->set, WJ); /* range WJ..NOMDIG */
716
0
    sa->add(sa->set, 0xfff0);
717
0
    sa->add(sa->set, 0xfffb+1);
718
0
    sa->add(sa->set, 0xe0000);
719
0
    sa->add(sa->set, 0xe0fff+1);
720
721
    /* add for UCHAR_GRAPHEME_BASE and others */
722
0
    USET_ADD_CP_AND_NEXT(sa, CGJ);
723
0
}
724
725
U_CFUNC void U_EXPORT2
726
0
upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
727
0
    if(U_FAILURE(*pErrorCode)) {
728
0
        return;
729
0
    }
730
731
    /* add the start code point of each same-value range of the properties vectors trie */
732
0
    if(propsVectorsColumns>0) {
733
        /* if propsVectorsColumns==0 then the properties vectors trie may not be there at all */
734
0
        utrie2_enum(&propsVectorsTrie, NULL, _enumPropertyStartsRange, sa);
735
0
    }
736
0
}