public function SearchTokenizerTest::code2utf in Drupal 9
Same name and namespace in other branches
- 8 core/modules/search/tests/src/Kernel/SearchTokenizerTest.php \Drupal\Tests\search\Kernel\SearchTokenizerTest::code2utf()
Like PHP chr() function, but for unicode characters.
Function chr() only works for ASCII characters up to character 255. This function converts a number to the corresponding unicode character. Adapted from functions supplied in comments on several functions on php.net.
1 call to SearchTokenizerTest::code2utf()
- SearchTokenizerTest::testTokenizer in core/
modules/ search/ tests/ src/ Kernel/ SearchTokenizerTest.php - Verifies that strings of CJK characters are tokenized.
File
- core/
modules/ search/ tests/ src/ Kernel/ SearchTokenizerTest.php, line 136
Class
- SearchTokenizerTest
- Tests that CJK tokenizer works as intended.
Namespace
Drupal\Tests\search\KernelCode
public function code2utf($num) {
if ($num < 128) {
return chr($num);
}
if ($num < 2048) {
return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
}
if ($num < 65536) {
return chr(($num >> 12) + 224) . chr(($num >> 6 & 63) + 128) . chr(($num & 63) + 128);
}
if ($num < 2097152) {
return chr(($num >> 18) + 240) . chr(($num >> 12 & 63) + 128) . chr(($num >> 6 & 63) + 128) . chr(($num & 63) + 128);
}
return '';
}