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Unified Diff: src/unicode.cc

Issue 2331303002: Use ICU for ID_START and ID_CONTINUE for Unicode 9 data (Closed)
Patch Set: drop an unnecessary todo Created 3 years, 6 months ago
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Index: src/unicode.cc
diff --git a/src/unicode.cc b/src/unicode.cc
index bc1f3f584fa0912efa8f393c2cd9a03809b9b71e..567c57a042b511b6c8aa510745a53dffe01a596c 100644
--- a/src/unicode.cc
+++ b/src/unicode.cc
@@ -9,6 +9,10 @@
#include <stdio.h>
#include <stdlib.h>
+#ifdef V8_INTL_SUPPORT
+#include "unicode/uchar.h"
+#endif
+
namespace unibrow {
static const int kStartBit = (1 << 30);
@@ -36,12 +40,11 @@ static inline uchar GetEntry(int32_t entry) {
return entry & (kStartBit - 1);
}
-
static inline bool IsStart(int32_t entry) {
return (entry & kStartBit) != 0;
}
-
+#ifndef V8_INTL_SUPPORT
/**
* Look up a character in the unicode table using a mix of binary and
* interpolation search. For a uniformly distributed array
@@ -81,6 +84,7 @@ static bool LookupPredicate(const int32_t* table, uint16_t size, uchar chr) {
bool is_start = IsStart(field);
return (entry == value) || (entry < value && is_start);
}
+#endif // !V8_INTL_SUPPORT
template <int kW>
struct MultiCharacterSpecialCase {
@@ -88,7 +92,6 @@ struct MultiCharacterSpecialCase {
uchar chars[kW];
};
-
// Look up the mapping for the given character in the specified table,
// which is of the specified length and uses the specified special case
// mapping for multi-char mappings. The next parameter is the character
@@ -410,7 +413,10 @@ bool Utf8::ValidateEncoding(const byte* bytes, size_t length) {
}
// Uppercase: point.category == 'Lu'
-
+// TODO(jshin): Check if it's ok to exclude Other_Uppercase characters.
+#ifdef V8_INTL_SUPPORT
+bool Uppercase::Is(uchar c) { return static_cast<bool>(u_isupper(c)); }
+#else
static const uint16_t kUppercaseTable0Size = 455;
static const int32_t kUppercaseTable0[455] = {
1073741889, 90, 1073742016, 214,
@@ -576,196 +582,12 @@ bool Uppercase::Is(uchar c) {
default: return false;
}
}
-
-
-// Lowercase: point.category == 'Ll'
-
-static const uint16_t kLowercaseTable0Size = 467;
-static const int32_t kLowercaseTable0[467] = {
- 1073741921, 122, 181, 1073742047,
- 246, 1073742072, 255, 257, // NOLINT
- 259, 261, 263, 265,
- 267, 269, 271, 273, // NOLINT
- 275, 277, 279, 281,
- 283, 285, 287, 289, // NOLINT
- 291, 293, 295, 297,
- 299, 301, 303, 305, // NOLINT
- 307, 309, 1073742135, 312,
- 314, 316, 318, 320, // NOLINT
- 322, 324, 326, 1073742152,
- 329, 331, 333, 335, // NOLINT
- 337, 339, 341, 343,
- 345, 347, 349, 351, // NOLINT
- 353, 355, 357, 359,
- 361, 363, 365, 367, // NOLINT
- 369, 371, 373, 375,
- 378, 380, 1073742206, 384, // NOLINT
- 387, 389, 392, 1073742220,
- 397, 402, 405, 1073742233, // NOLINT
- 411, 414, 417, 419,
- 421, 424, 1073742250, 427, // NOLINT
- 429, 432, 436, 438,
- 1073742265, 442, 1073742269, 447, // NOLINT
- 454, 457, 460, 462,
- 464, 466, 468, 470, // NOLINT
- 472, 474, 1073742300, 477,
- 479, 481, 483, 485, // NOLINT
- 487, 489, 491, 493,
- 1073742319, 496, 499, 501, // NOLINT
- 505, 507, 509, 511,
- 513, 515, 517, 519, // NOLINT
- 521, 523, 525, 527,
- 529, 531, 533, 535, // NOLINT
- 537, 539, 541, 543,
- 545, 547, 549, 551, // NOLINT
- 553, 555, 557, 559,
- 561, 1073742387, 569, 572, // NOLINT
- 1073742399, 576, 578, 583,
- 585, 587, 589, 1073742415, // NOLINT
- 659, 1073742485, 687, 881,
- 883, 887, 1073742715, 893, // NOLINT
- 912, 1073742764, 974, 1073742800,
- 977, 1073742805, 983, 985, // NOLINT
- 987, 989, 991, 993,
- 995, 997, 999, 1001, // NOLINT
- 1003, 1005, 1073742831, 1011,
- 1013, 1016, 1073742843, 1020, // NOLINT
- 1073742896, 1119, 1121, 1123,
- 1125, 1127, 1129, 1131, // NOLINT
- 1133, 1135, 1137, 1139,
- 1141, 1143, 1145, 1147, // NOLINT
- 1149, 1151, 1153, 1163,
- 1165, 1167, 1169, 1171, // NOLINT
- 1173, 1175, 1177, 1179,
- 1181, 1183, 1185, 1187, // NOLINT
- 1189, 1191, 1193, 1195,
- 1197, 1199, 1201, 1203, // NOLINT
- 1205, 1207, 1209, 1211,
- 1213, 1215, 1218, 1220, // NOLINT
- 1222, 1224, 1226, 1228,
- 1073743054, 1231, 1233, 1235, // NOLINT
- 1237, 1239, 1241, 1243,
- 1245, 1247, 1249, 1251, // NOLINT
- 1253, 1255, 1257, 1259,
- 1261, 1263, 1265, 1267, // NOLINT
- 1269, 1271, 1273, 1275,
- 1277, 1279, 1281, 1283, // NOLINT
- 1285, 1287, 1289, 1291,
- 1293, 1295, 1297, 1299, // NOLINT
- 1301, 1303, 1305, 1307,
- 1309, 1311, 1313, 1315, // NOLINT
- 1317, 1319, 1321, 1323,
- 1325, 1327, 1073743201, 1415, // NOLINT
- 1073749248, 7467, 1073749355, 7543,
- 1073749369, 7578, 7681, 7683, // NOLINT
- 7685, 7687, 7689, 7691,
- 7693, 7695, 7697, 7699, // NOLINT
- 7701, 7703, 7705, 7707,
- 7709, 7711, 7713, 7715, // NOLINT
- 7717, 7719, 7721, 7723,
- 7725, 7727, 7729, 7731, // NOLINT
- 7733, 7735, 7737, 7739,
- 7741, 7743, 7745, 7747, // NOLINT
- 7749, 7751, 7753, 7755,
- 7757, 7759, 7761, 7763, // NOLINT
- 7765, 7767, 7769, 7771,
- 7773, 7775, 7777, 7779, // NOLINT
- 7781, 7783, 7785, 7787,
- 7789, 7791, 7793, 7795, // NOLINT
- 7797, 7799, 7801, 7803,
- 7805, 7807, 7809, 7811, // NOLINT
- 7813, 7815, 7817, 7819,
- 7821, 7823, 7825, 7827, // NOLINT
- 1073749653, 7837, 7839, 7841,
- 7843, 7845, 7847, 7849, // NOLINT
- 7851, 7853, 7855, 7857,
- 7859, 7861, 7863, 7865, // NOLINT
- 7867, 7869, 7871, 7873,
- 7875, 7877, 7879, 7881, // NOLINT
- 7883, 7885, 7887, 7889,
- 7891, 7893, 7895, 7897, // NOLINT
- 7899, 7901, 7903, 7905,
- 7907, 7909, 7911, 7913, // NOLINT
- 7915, 7917, 7919, 7921,
- 7923, 7925, 7927, 7929, // NOLINT
- 7931, 7933, 1073749759, 7943,
- 1073749776, 7957, 1073749792, 7975, // NOLINT
- 1073749808, 7991, 1073749824, 8005,
- 1073749840, 8023, 1073749856, 8039, // NOLINT
- 1073749872, 8061, 1073749888, 8071,
- 1073749904, 8087, 1073749920, 8103, // NOLINT
- 1073749936, 8116, 1073749942, 8119,
- 8126, 1073749954, 8132, 1073749958, // NOLINT
- 8135, 1073749968, 8147, 1073749974,
- 8151, 1073749984, 8167, 1073750002, // NOLINT
- 8180, 1073750006, 8183}; // NOLINT
-static const uint16_t kLowercaseTable1Size = 84;
-static const int32_t kLowercaseTable1[84] = {
- 266, 1073742094, 271, 275, 303, 308, 313, 1073742140, // NOLINT
- 317, 1073742150, 329, 334, 388, 1073744944, 3166, 3169, // NOLINT
- 1073744997, 3174, 3176, 3178, 3180, 3185, 1073745011, 3188, // NOLINT
- 1073745014, 3195, 3201, 3203, 3205, 3207, 3209, 3211, // NOLINT
- 3213, 3215, 3217, 3219, 3221, 3223, 3225, 3227, // NOLINT
- 3229, 3231, 3233, 3235, 3237, 3239, 3241, 3243, // NOLINT
- 3245, 3247, 3249, 3251, 3253, 3255, 3257, 3259, // NOLINT
- 3261, 3263, 3265, 3267, 3269, 3271, 3273, 3275, // NOLINT
- 3277, 3279, 3281, 3283, 3285, 3287, 3289, 3291, // NOLINT
- 3293, 3295, 3297, 1073745123, 3300, 3308, 3310, 3315, // NOLINT
- 1073745152, 3365, 3367, 3373 }; // NOLINT
-static const uint16_t kLowercaseTable5Size = 105;
-static const int32_t kLowercaseTable5[105] = {
- 1601, 1603, 1605, 1607,
- 1609, 1611, 1613, 1615, // NOLINT
- 1617, 1619, 1621, 1623,
- 1625, 1627, 1629, 1631, // NOLINT
- 1633, 1635, 1637, 1639,
- 1641, 1643, 1645, 1665, // NOLINT
- 1667, 1669, 1671, 1673,
- 1675, 1677, 1679, 1681, // NOLINT
- 1683, 1685, 1687, 1689,
- 1691, 1827, 1829, 1831, // NOLINT
- 1833, 1835, 1837, 1073743663,
- 1841, 1843, 1845, 1847, // NOLINT
- 1849, 1851, 1853, 1855,
- 1857, 1859, 1861, 1863, // NOLINT
- 1865, 1867, 1869, 1871,
- 1873, 1875, 1877, 1879, // NOLINT
- 1881, 1883, 1885, 1887,
- 1889, 1891, 1893, 1895, // NOLINT
- 1897, 1899, 1901, 1903,
- 1073743729, 1912, 1914, 1916, // NOLINT
- 1919, 1921, 1923, 1925,
- 1927, 1932, 1934, 1937, // NOLINT
- 1073743763, 1941, 1943, 1945,
- 1947, 1949, 1951, 1953, // NOLINT
- 1955, 1957, 1959, 1961,
- 2042, 1073744688, 2906, 1073744740, // NOLINT
- 2917}; // NOLINT
-static const uint16_t kLowercaseTable7Size = 6;
-static const int32_t kLowercaseTable7[6] = {
- 1073748736, 6918, 1073748755, 6935, 1073749825, 8026 }; // NOLINT
-bool Lowercase::Is(uchar c) {
- int chunk_index = c >> 13;
- switch (chunk_index) {
- case 0: return LookupPredicate(kLowercaseTable0,
- kLowercaseTable0Size,
- c);
- case 1: return LookupPredicate(kLowercaseTable1,
- kLowercaseTable1Size,
- c);
- case 5: return LookupPredicate(kLowercaseTable5,
- kLowercaseTable5Size,
- c);
- case 7: return LookupPredicate(kLowercaseTable7,
- kLowercaseTable7Size,
- c);
- default: return false;
- }
-}
-
+#endif // V8_INTL_SUPPORT
// Letter: point.category in ['Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl']
-
+#ifdef V8_INTL_SUPPORT
+bool Letter::Is(uchar c) { return static_cast<bool>(u_isalpha(c)); }
+#else
static const uint16_t kLetterTable0Size = 431;
static const int32_t kLetterTable0[431] = {
1073741889, 90, 1073741921, 122,
@@ -966,8 +788,9 @@ bool Letter::Is(uchar c) {
default: return false;
}
}
+#endif
-
+#ifndef V8_INTL_SUPPORT
// ID_Start: ((point.category in ['Lu', 'Ll', 'Lt', 'Lm', 'Lo',
// 'Nl'] or 'Other_ID_Start' in point.properties) and ('Pattern_Syntax' not in
// point.properties) and ('Pattern_White_Space' not in point.properties)) or
@@ -1313,7 +1136,6 @@ bool ID_Continue::Is(uchar c) {
}
}
-
// WhiteSpace: (point.category == 'Zs') or ('JS_White_Space' in
// point.properties)
@@ -1339,29 +1161,18 @@ bool WhiteSpace::Is(uchar c) {
default: return false;
}
}
-
+#endif // !V8_INTL_SUPPORT
// LineTerminator: 'JS_Line_Terminator' in point.properties
+// ES#sec-line-terminators lists exactly 4 code points:
+// LF (U+000A), CR (U+000D), LS(U+2028), PS(U+2029)
-static const uint16_t kLineTerminatorTable0Size = 2;
-static const int32_t kLineTerminatorTable0[2] = {
- 10, 13 }; // NOLINT
-static const uint16_t kLineTerminatorTable1Size = 2;
-static const int32_t kLineTerminatorTable1[2] = {
- 1073741864, 41 }; // NOLINT
bool LineTerminator::Is(uchar c) {
- int chunk_index = c >> 13;
- switch (chunk_index) {
- case 0: return LookupPredicate(kLineTerminatorTable0,
- kLineTerminatorTable0Size,
- c);
- case 1: return LookupPredicate(kLineTerminatorTable1,
- kLineTerminatorTable1Size,
- c);
- default: return false;
- }
+ return c == 0xA || c == 0xD || c == 0x2028 || c == 0x2029;
}
+// TODO(jshin): Once icu_case_mapping flag is removed, enclose case-mapping
+// related tables with #ifndef V8_INTL_SUPPORT.
static const MultiCharacterSpecialCase<2> kToLowercaseMultiStrings0[2] = { // NOLINT
{{105, 775}}, {{kSentinel}} }; // NOLINT
static const uint16_t kToLowercaseTable0Size = 488; // NOLINT
@@ -3450,14 +3261,11 @@ int CanonicalizationRange::Convert(uchar c,
const uchar UnicodeData::kMaxCodePoint = 65533;
int UnicodeData::GetByteCount() {
+#ifndef V8_INTL_SUPPORT // NOLINT
return kUppercaseTable0Size * sizeof(int32_t) // NOLINT
+ kUppercaseTable1Size * sizeof(int32_t) // NOLINT
+ kUppercaseTable5Size * sizeof(int32_t) // NOLINT
+ kUppercaseTable7Size * sizeof(int32_t) // NOLINT
- + kLowercaseTable0Size * sizeof(int32_t) // NOLINT
- + kLowercaseTable1Size * sizeof(int32_t) // NOLINT
- + kLowercaseTable5Size * sizeof(int32_t) // NOLINT
- + kLowercaseTable7Size * sizeof(int32_t) // NOLINT
+ kLetterTable0Size * sizeof(int32_t) // NOLINT
+ kLetterTable1Size * sizeof(int32_t) // NOLINT
+ kLetterTable2Size * sizeof(int32_t) // NOLINT
@@ -3481,8 +3289,9 @@ int UnicodeData::GetByteCount() {
+ kWhiteSpaceTable0Size * sizeof(int32_t) // NOLINT
+ kWhiteSpaceTable1Size * sizeof(int32_t) // NOLINT
+ kWhiteSpaceTable7Size * sizeof(int32_t) // NOLINT
- + kLineTerminatorTable0Size * sizeof(int32_t) // NOLINT
- + kLineTerminatorTable1Size * sizeof(int32_t) // NOLINT
+#else
+ return
+#endif // !V8_INTL_SUPPORT
+
kToLowercaseMultiStrings0Size *
sizeof(MultiCharacterSpecialCase<2>) // NOLINT
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