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Use linear search in get_unicode_simple_category.

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This commit is contained in:
levlam 2022-08-19 18:06:29 +03:00
parent 5c9d306208
commit 231c47e237
1 changed files with 5 additions and 8 deletions
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13
tdutils/td/utils/unicode.cpp
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@ -8,9 +8,6 @@
#include "td/utils/logging.h"
#include <algorithm>
#include <iterator>
namespace td {
// list of [(range_begin << 5) + range_type]
@ -1246,11 +1243,11 @@ static const int32 without_diacritics_ranges[] = {
918000, -918001, 2147483647, 0};
UnicodeSimpleCategory get_unicode_simple_category(uint32 code) {
// CHECK((code >> 10) + 1 < sizeof(unicode_simple_category_jump_pos) / sizeof(unicode_simple_category_jump_pos[0]));
auto *jump_pos = &unicode_simple_category_jump_pos[code >> 10];
// CHECK(jump_pos[1] < sizeof(unicode_simple_category_ranges) / sizeof(unicode_simple_category_ranges[0]));
auto it = std::upper_bound(&unicode_simple_category_ranges[jump_pos[0]], &unicode_simple_category_ranges[jump_pos[1]],
(code << 5) + 30);
auto it = unicode_simple_category_ranges + unicode_simple_category_jump_pos[code >> 10];
code = (code << 5) + 30;
while (*it <= code) {
++it;
}
return static_cast<UnicodeSimpleCategory>(*(it - 1) & 31);
}