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I noticed that PHP does not have a grapheme cluster based str_split function. So I created the grapheme_str_split function. This feature will allow you to correctly handle emoji and variable selectors. Co-authored-by: Ayesh Karunaratne <Ayesh@users.noreply.github.com> Close GH-13580
59 lines
1.8 KiB
PHP
59 lines
1.8 KiB
PHP
--TEST--
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grapheme_str_split function tests
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--EXTENSIONS--
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intl
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--FILE--
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<?php
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function ut_main()
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{
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$res_str = '';
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$tests = array(
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array( "abc", 3, array("abc") ),
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array( "abc", 2, array("ab", "c") ),
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array( "abc", 1, array("a", "b", "c" ) ),
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array( "土下座🙇♀を", 1, array("土", "下", "座", "🙇♀", "を") ),
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array( "土下座🙇♀を", 6, array("土下座🙇♀を") ),
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array( "null\x00byte", 1, array("n", "u", "l", "l", "\x00", "b", "y", "t", "e") ),
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);
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foreach( $tests as $test ) {
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$res_str .= "grapheme cluster for str_split - param {$test[0]}, length {$test[1]} ";
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$result = grapheme_str_split($test[0], $test[1]);
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$res_str .= dump_array_bin2hex($test[count($test)-1]) . check_result($result, $test[count($test)-1]) . "\n";
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}
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return $res_str;
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}
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function dump_array_bin2hex($values) {
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$returns = [];
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foreach ($values as $value) {
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$returns[] = bin2hex($value);
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}
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return '[' . implode(',', $returns) . ']';
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}
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echo ut_main();
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function check_result($result, $expected) {
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if ( $result === false ) {
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$result = 'false';
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}
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if ( $result !== $expected) {
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echo "result: {$result}\n";
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echo "expected: {$expected}\n";
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}
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return "";
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}
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?>
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--EXPECT--
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grapheme cluster for str_split - param abc, length 3 [616263]
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grapheme cluster for str_split - param abc, length 2 [6162,63]
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grapheme cluster for str_split - param abc, length 1 [61,62,63]
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grapheme cluster for str_split - param 土下座🙇♀を, length 1 [e59c9f,e4b88b,e5baa7,f09f9987e2808de29980,e38292]
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grapheme cluster for str_split - param 土下座🙇♀を, length 6 [e59c9fe4b88be5baa7f09f9987e2808de29980e38292]
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grapheme cluster for str_split - param null byte, length 1 [6e,75,6c,6c,00,62,79,74,65]
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