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 /**
99 * Fraction-32 values:
100 * frac32 = ntv-0x34c = 0..15 -> 1|3|5|7 / 32|64|128|256
101 * numerator: num = 2*(frac32&3)+1
102 * denominator: den = 32<<(frac32>>2)
103 */
104 UPROPS_NTV_FRACTION32_START=UPROPS_NTV_FRACTION20_START+24, // 0x324+6*4=0x34c
105 /** No numeric value (yet). */
106 UPROPS_NTV_RESERVED_START=UPROPS_NTV_FRACTION32_START+16, // 0x34c+4*4=0x35c
107
108 UPROPS_NTV_MAX_SMALL_INT=UPROPS_NTV_FRACTION_START-UPROPS_NTV_NUMERIC_START-1
109 };
110
111 #define UPROPS_NTV_GET_TYPE(ntv) \
112 ((ntv==UPROPS_NTV_NONE) ? U_NT_NONE : \
113 (ntv<UPROPS_NTV_DIGIT_START) ? U_NT_DECIMAL : \
114 (ntv<UPROPS_NTV_NUMERIC_START) ? U_NT_DIGIT : \
115 U_NT_NUMERIC)
116
117 /* number of properties vector words */
118 #define UPROPS_VECTOR_WORDS 3
119
120 /*
121 * Properties in vector word 0
122 * Bits
123 * 31..24 DerivedAge version major/minor one nibble each
124 * 23..22 3..1: Bits 21..20 & 7..0 = Script_Extensions index
125 * 3: Script value from Script_Extensions
126 * 2: Script=Inherited
127 * 1: Script=Common
128 * 0: Script=bits 21..20 & 7..0
129 * 21..20 Bits 9..8 of the UScriptCode, or index to Script_Extensions
130 * 19..17 East Asian Width
131 * 16.. 8 UBlockCode
132 * 7.. 0 UScriptCode, or index to Script_Extensions
133 */
134
135 /* derived age: one nibble each for major and minor version numbers */
136 #define UPROPS_AGE_MASK 0xff000000
137 #define UPROPS_AGE_SHIFT 24
138
139 /* Script_Extensions: mask includes Script */
140 #define UPROPS_SCRIPT_X_MASK 0x00f000ff
141 #define UPROPS_SCRIPT_X_SHIFT 22
142
143 // The UScriptCode or Script_Extensions index is split across two bit fields.
144 // (Starting with Unicode 13/ICU 66/2019 due to more varied Script_Extensions.)
145 // Shift the high bits right by 12 to assemble the full value.
146 #define UPROPS_SCRIPT_HIGH_MASK 0x00300000
147 #define UPROPS_SCRIPT_HIGH_SHIFT 12
148 #define UPROPS_MAX_SCRIPT 0x3ff
149
150 #define UPROPS_EA_MASK 0x000e0000
151 #define UPROPS_EA_SHIFT 17
152
153 #define UPROPS_BLOCK_MASK 0x0001ff00
154 #define UPROPS_BLOCK_SHIFT 8
155
156 #define UPROPS_SCRIPT_LOW_MASK 0x000000ff
157
158 /* UPROPS_SCRIPT_X_WITH_COMMON must be the lowest value that involves Script_Extensions. */
159 #define UPROPS_SCRIPT_X_WITH_COMMON 0x400000
160 #define UPROPS_SCRIPT_X_WITH_INHERITED 0x800000
161 #define UPROPS_SCRIPT_X_WITH_OTHER 0xc00000
162
163 #ifdef __cplusplus
164
165 namespace {
166
uprops_mergeScriptCodeOrIndex(uint32_t scriptX)167 inline uint32_t uprops_mergeScriptCodeOrIndex(uint32_t scriptX) {
168 return
169 ((scriptX & UPROPS_SCRIPT_HIGH_MASK) >> UPROPS_SCRIPT_HIGH_SHIFT) |
170 (scriptX & UPROPS_SCRIPT_LOW_MASK);
171 }
172
173 } // namespace
174
175 #endif // __cplusplus
176
177 /*
178 * Properties in vector word 1
179 * Each bit encodes one binary property.
180 * The following constants represent the bit number, use 1<<UPROPS_XYZ.
181 * UPROPS_BINARY_1_TOP<=32!
182 *
183 * Keep this list of property enums in sync with
184 * propListNames[] in icu/source/tools/genprops/props2.c!
185 *
186 * ICU 2.6/uprops format version 3.2 stores full properties instead of "Other_".
187 */
188 enum {
189 UPROPS_WHITE_SPACE,
190 UPROPS_DASH,
191 UPROPS_HYPHEN,
192 UPROPS_QUOTATION_MARK,
193 UPROPS_TERMINAL_PUNCTUATION,
194 UPROPS_MATH,
195 UPROPS_HEX_DIGIT,
196 UPROPS_ASCII_HEX_DIGIT,
197 UPROPS_ALPHABETIC,
198 UPROPS_IDEOGRAPHIC,
199 UPROPS_DIACRITIC,
200 UPROPS_EXTENDER,
201 UPROPS_NONCHARACTER_CODE_POINT,
202 UPROPS_GRAPHEME_EXTEND,
203 UPROPS_GRAPHEME_LINK,
204 UPROPS_IDS_BINARY_OPERATOR,
205 UPROPS_IDS_TRINARY_OPERATOR,
206 UPROPS_RADICAL,
207 UPROPS_UNIFIED_IDEOGRAPH,
208 UPROPS_DEFAULT_IGNORABLE_CODE_POINT,
209 UPROPS_DEPRECATED,
210 UPROPS_LOGICAL_ORDER_EXCEPTION,
211 UPROPS_XID_START,
212 UPROPS_XID_CONTINUE,
213 UPROPS_ID_START, /* ICU 2.6, uprops format version 3.2 */
214 UPROPS_ID_CONTINUE,
215 UPROPS_GRAPHEME_BASE,
216 UPROPS_S_TERM, /* new in ICU 3.0 and Unicode 4.0.1 */
217 UPROPS_VARIATION_SELECTOR,
218 UPROPS_PATTERN_SYNTAX, /* new in ICU 3.4 and Unicode 4.1 */
219 UPROPS_PATTERN_WHITE_SPACE,
220 UPROPS_PREPENDED_CONCATENATION_MARK, // new in ICU 60 and Unicode 10
221 UPROPS_BINARY_1_TOP /* ==32 - full! */
222 };
223
224 /*
225 * Properties in vector word 2
226 * Bits
227 * 31..26 http://www.unicode.org/reports/tr51/#Emoji_Properties
228 * 25..20 Line Break
229 * 19..15 Sentence Break
230 * 14..10 Word Break
231 * 9.. 5 Grapheme Cluster Break
232 * 4.. 0 Decomposition Type
233 */
234 enum {
235 UPROPS_2_EXTENDED_PICTOGRAPHIC=26,
236 UPROPS_2_EMOJI_COMPONENT,
237 UPROPS_2_EMOJI,
238 UPROPS_2_EMOJI_PRESENTATION,
239 UPROPS_2_EMOJI_MODIFIER,
240 UPROPS_2_EMOJI_MODIFIER_BASE
241 };
242
243 #define UPROPS_LB_MASK 0x03f00000
244 #define UPROPS_LB_SHIFT 20
245
246 #define UPROPS_SB_MASK 0x000f8000
247 #define UPROPS_SB_SHIFT 15
248
249 #define UPROPS_WB_MASK 0x00007c00
250 #define UPROPS_WB_SHIFT 10
251
252 #define UPROPS_GCB_MASK 0x000003e0
253 #define UPROPS_GCB_SHIFT 5
254
255 #define UPROPS_DT_MASK 0x0000001f
256
257 /**
258 * Gets the main properties value for a code point.
259 * Implemented in uchar.c for uprops.cpp.
260 */
261 U_CFUNC uint32_t
262 u_getMainProperties(UChar32 c);
263
264 /**
265 * Get a properties vector word for a code point.
266 * Implemented in uchar.c for uprops.cpp.
267 * @return 0 if no data or illegal argument
268 */
269 U_CFUNC uint32_t
270 u_getUnicodeProperties(UChar32 c, int32_t column);
271
272 /**
273 * Get the the maximum values for some enum/int properties.
274 * Use the same column numbers as for u_getUnicodeProperties().
275 * The returned value will contain maximum values stored in the same bit fields
276 * as where the enum values are stored in the u_getUnicodeProperties()
277 * return values for the same columns.
278 *
279 * Valid columns are those for properties words that contain enumerated values.
280 * (ICU 2.6: columns 0 and 2)
281 * For other column numbers, this function will return 0.
282 *
283 * @internal
284 */
285 U_CFUNC int32_t
286 uprv_getMaxValues(int32_t column);
287
288 /**
289 * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
290 * @internal
291 */
292 U_CFUNC UBool
293 u_isalnumPOSIX(UChar32 c);
294
295 /**
296 * Checks if c is in
297 * [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}]
298 * with space=\p{Whitespace} and Control=Cc.
299 * Implements UCHAR_POSIX_GRAPH.
300 * @internal
301 */
302 U_CFUNC UBool
303 u_isgraphPOSIX(UChar32 c);
304
305 /**
306 * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
307 * Implements UCHAR_POSIX_PRINT.
308 * @internal
309 */
310 U_CFUNC UBool
311 u_isprintPOSIX(UChar32 c);
312
313 /** Some code points. @internal */
314 enum {
315 TAB =0x0009,
316 LF =0x000a,
317 FF =0x000c,
318 CR =0x000d,
319 NBSP =0x00a0,
320 CGJ =0x034f,
321 FIGURESP=0x2007,
322 HAIRSP =0x200a,
323 ZWNJ =0x200c,
324 ZWJ =0x200d,
325 RLM =0x200f,
326 NNBSP =0x202f,
327 ZWNBSP =0xfeff
328 };
329
330 /**
331 * Get the maximum length of a (regular/1.0/extended) character name.
332 * @return 0 if no character names available.
333 */
334 U_CAPI int32_t U_EXPORT2
335 uprv_getMaxCharNameLength(void);
336
337 /**
338 * Fills set with characters that are used in Unicode character names.
339 * Includes all characters that are used in regular/Unicode 1.0/extended names.
340 * Just empties the set if no character names are available.
341 * @param sa USetAdder to receive characters.
342 */
343 U_CAPI void U_EXPORT2
344 uprv_getCharNameCharacters(const USetAdder *sa);
345
346 /**
347 * Constants for which data and implementation files provide which properties.
348 * Used by UnicodeSet for service-specific property enumeration.
349 * @internal
350 */
351 enum UPropertySource {
352 /** No source, not a supported property. */
353 UPROPS_SRC_NONE,
354 /** From uchar.c/uprops.icu main trie */
355 UPROPS_SRC_CHAR,
356 /** From uchar.c/uprops.icu properties vectors trie */
357 UPROPS_SRC_PROPSVEC,
358 /** From unames.c/unames.icu */
359 UPROPS_SRC_NAMES,
360 /** From ucase.c/ucase.icu */
361 UPROPS_SRC_CASE,
362 /** From ubidi_props.c/ubidi.icu */
363 UPROPS_SRC_BIDI,
364 /** From uchar.c/uprops.icu main trie as well as properties vectors trie */
365 UPROPS_SRC_CHAR_AND_PROPSVEC,
366 /** From ucase.c/ucase.icu as well as unorm.cpp/unorm.icu */
367 UPROPS_SRC_CASE_AND_NORM,
368 /** From normalizer2impl.cpp/nfc.nrm */
369 UPROPS_SRC_NFC,
370 /** From normalizer2impl.cpp/nfkc.nrm */
371 UPROPS_SRC_NFKC,
372 /** From normalizer2impl.cpp/nfkc_cf.nrm */
373 UPROPS_SRC_NFKC_CF,
374 /** From normalizer2impl.cpp/nfc.nrm canonical iterator data */
375 UPROPS_SRC_NFC_CANON_ITER,
376 // Text layout properties.
377 UPROPS_SRC_INPC,
378 UPROPS_SRC_INSC,
379 UPROPS_SRC_VO,
380 /** One more than the highest UPropertySource (UPROPS_SRC_) constant. */
381 UPROPS_SRC_COUNT
382 };
383 typedef enum UPropertySource UPropertySource;
384
385 /**
386 * @see UPropertySource
387 * @internal
388 */
389 U_CFUNC UPropertySource U_EXPORT2
390 uprops_getSource(UProperty which);
391
392 /**
393 * Enumerate uprops.icu's main data trie and add the
394 * start of each range of same properties to the set.
395 * @internal
396 */
397 U_CFUNC void U_EXPORT2
398 uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
399
400 /**
401 * Enumerate uprops.icu's properties vectors trie and add the
402 * start of each range of same properties to the set.
403 * @internal
404 */
405 U_CFUNC void U_EXPORT2
406 upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
407
408 U_CFUNC void U_EXPORT2
409 uprops_addPropertyStarts(UPropertySource src, const USetAdder *sa, UErrorCode *pErrorCode);
410
411 /**
412 * Return a set of characters for property enumeration.
413 * For each two consecutive characters (start, limit) in the set,
414 * all of the properties for start..limit-1 are all the same.
415 *
416 * @param sa USetAdder to receive result. Existing contents are lost.
417 * @internal
418 */
419 /*U_CFUNC void U_EXPORT2
420 uprv_getInclusions(const USetAdder *sa, UErrorCode *pErrorCode);
421 */
422
423 /**
424 * Swap the ICU Unicode character names file. See uchar.c.
425 * @internal
426 */
427 U_CAPI int32_t U_EXPORT2
428 uchar_swapNames(const UDataSwapper *ds,
429 const void *inData, int32_t length, void *outData,
430 UErrorCode *pErrorCode);
431
432 #ifdef __cplusplus
433
434 U_NAMESPACE_BEGIN
435
436 class UnicodeSet;
437
438 class CharacterProperties {
439 public:
440 CharacterProperties() = delete;
441 static const UnicodeSet *getInclusionsForProperty(UProperty prop, UErrorCode &errorCode);
442 };
443
444 // implemented in uniset_props.cpp
445 U_CFUNC UnicodeSet *
446 uniset_getUnicode32Instance(UErrorCode &errorCode);
447
448 U_NAMESPACE_END
449
450 #endif
451
452 #endif
453