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Code Duplication    Length = 4-4 lines in 2 locations

src/list.php 2 locations

@@ 206-209 (lines=4) @@
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function init () {
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    static $init = false;
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    $init = $init ?: curry(function($list) {
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        if(is_string($list))
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            return (strlen($list) > 1)
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                ? substr($list, 0, strlen($list) - 1)
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                : '';
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        return (count($list) > 1)
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            ? array_slice($list, 0, count($list) - 1)
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            : [];
@@ 237-240 (lines=4) @@
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function tail () {
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    static $tail = false;
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    $tail = $tail ?: curry(function($list) {
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        if(is_string($list))
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            return (strlen($list) > 1)
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                ? substr($list, 1)
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                : '';
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        return (count($list) > 1)
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            ? array_slice($list, 1)
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            : [];