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id = $matches[1]; $cldrFormulaAndExamplesNormalized = trim(preg_replace('/\s+/', ' ', $cldrFormulaAndExamples)); if (!preg_match('/^([^@]*)(?:@integer([^@]+))?(?:@decimal(?:[^@]+))?$/', $cldrFormulaAndExamplesNormalized, $matches)) { throw new Exception("Invalid CLDR category rule: $cldrFormulaAndExamples"); } $cldrFormula = trim($matches[1]); $s = isset($matches[2]) ? trim($matches[2]) : ''; $this->examples = ($s === '') ? null : $s; switch ($this->id) { case CldrData::OTHER_CATEGORY: if ($cldrFormula !== '') { throw new Exception("The '".CldrData::OTHER_CATEGORY."' category should not have any formula, but it has '$cldrFormula'"); } $this->formula = null; break; default: if ($cldrFormula === '') { throw new Exception("The '{$this->id}' category does not have a formula"); } $this->formula = FormulaConverter::convertFormula($cldrFormula); break; } } /** * Return a list of numbers corresponding to the $examples value. * @throws Exception Throws an Exception if we weren't able to expand the examples. * @return int[] */ public function getExampleIntegers() { return self::expandExamples($this->examples); } /** * Expand a list of examples as defined by CLDR. * @param string $examples A string like '1, 2, 5...7, …'. * @throws Exception Throws an Exception if we weren't able to expand $examples. * @return int[] */ public static function expandExamples($examples) { $result = array(); $m = null; if (substr($examples, -strlen(', …')) === ', …') { $examples = substr($examples, 0, strlen($examples) -strlen(', …')); } foreach (explode(',', str_replace(' ', '', $examples)) as $range) { if (preg_match('/^\d+$/', $range)) { $result[] = intval($range); } elseif (preg_match('/^(\d+)~(\d+)$/', $range, $m)) { $from = intval($m[1]); $to = intval($m[2]); $delta = $to - $from; $step = (int) max(1, $delta / 100); for ($i = $from; $i < $to; $i += $step) { $result[] = $i; } $result[] = $to; } else { throw new Exception("Unhandled test range '$range' in '$examples'"); } } if (empty($result)) { throw new Exception("No test numbers from '$examples'"); } return $result; } }