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<?php |
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/* |
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* citeproc-php |
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* |
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* @link http://github.com/seboettg/citeproc-php for the source repository |
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* @copyright Copyright (c) 2016 Sebastian Böttger. |
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* @license https://opensource.org/licenses/MIT |
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*/ |
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namespace Seboettg\CiteProc\Util; |
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/** |
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* Class Number |
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* @package Seboettg\CiteProc\Util |
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* |
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* @author Sebastian Böttger <[email protected]> |
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*/ |
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class Number |
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{ |
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const PATTERN_ORDINAL = "/\d+(st|nd|rd|th)?\.?$/"; |
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const PATTERN_ROMAN = "/^[ivxlcdm]+\.?$/i"; |
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const PATTERN_AFFIXES = "/^[a-z]?\d+[a-z]?$/i"; |
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const PATTERN_COMMA_AMPERSAND_RANGE = "/\d*([\s?\-&+,;\s])+\d+/"; |
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const ROMAN_NUMERALS = [ |
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["", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix"], |
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["", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc"], |
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["", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm"], |
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["", "m", "mm", "mmm", "mmmm", "mmmmm"] |
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]; |
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const ROMAN_DIGITS = [ |
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"M" => 1000, |
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"D" => 500, |
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"C" => 100, |
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"L" => 50, |
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"X" => 10, |
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"V" => 5, |
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"I" => 1 |
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]; |
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/** |
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* @return \Closure |
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*/ |
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public static function getCompareNumber() |
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{ |
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return function($numA, $numB, $order) { |
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if (is_numeric($numA) && is_numeric($numB)) { |
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$ret = $numA - $numB; |
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} else { |
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$ret = strcasecmp($numA, $numB); |
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} |
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if ("descending" === $order) { |
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return $ret > 0 ? -1 : 1; |
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} |
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return $ret > 0 ? 1 : -1; |
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}; |
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} |
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/** |
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* @param $num |
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* @return string |
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*/ |
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public static function dec2roman($num) |
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{ |
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$ret = ""; |
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if ($num < 6000) { |
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$numStr = strrev($num); |
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$len = strlen($numStr); |
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for ($pos = 0; $pos < $len; $pos++) { |
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$n = $numStr[$pos]; |
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$ret = self::ROMAN_NUMERALS[$pos][$n] . $ret; |
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} |
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} |
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return $ret; |
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} |
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/** |
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* @param $romanNumber |
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* @return int|mixed |
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*/ |
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public static function roman2Dec($romanNumber) |
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{ |
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if (is_numeric($romanNumber)) { |
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return 0; |
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} |
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$values = []; |
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// Convert the string to an array of roman values: |
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for ($i = 0; $i < strlen($romanNumber); ++$i) { |
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$char = strtoupper($romanNumber{$i}); |
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if (isset(self::ROMAN_DIGITS[$char])) { |
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$values[] = self::ROMAN_DIGITS[$char]; |
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} |
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} |
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$sum = 0; |
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while ($current = current($values)) { |
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$next = next($values); |
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$next > $current ? $sum += $next - $current + 0 * next($values) : $sum += $current; |
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} |
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// Return the value: |
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return $sum; |
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} |
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public static function isRomanNumber($str) |
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{ |
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for ($i = 0; $i < strlen($str); ++$i) { |
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$char = strtoupper($str{$i}); |
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if (!in_array($char, array_keys(self::ROMAN_DIGITS))) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @param $str |
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* @return string |
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*/ |
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public static function evaluateStringPluralism($str) |
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{ |
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$plural = 'single'; |
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if (!empty($str)) { |
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$ranges = preg_split("/[-–&,]/", $str); |
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if (count($ranges) > 1) { |
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$range = 1; |
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foreach ($ranges as $range) { |
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if (Number::isRomanNumber($range) || is_numeric($range)) { |
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$range &= 1; |
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} |
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} |
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if ($range == 1) { |
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return 'multiple'; |
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} |
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} else { |
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if (is_numeric($str)) { |
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return $str > 1 ? 'multiple' : 'single'; |
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} |
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} |
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} |
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return $plural; |
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} |
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} |
seboettg /
citeproc-php
This check looks for accesses to local static members using the fully qualified name instead of
self::.While this is perfectly valid, the fully qualified name of
Certificate::TRIPLEDES_CBCcould just as well be replaced byself::TRIPLEDES_CBC. Referencing local members withself::assured the access will still work when the class is renamed, makes it perfectly clear that the member is in fact local and will usually be shorter.