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 $range) { if (preg_match('/^(?\d+)((c|e)(?\d+))?$/', $range, $m)) { $result[] = (int) (isset($m['exp']) ? ($m['num'] . str_repeat('0', (int) $m['exp'])) : $range); } elseif (preg_match('/^(\d+)~(\d+)$/', $range, $m)) { $from = (int) $m[1]; $to = (int) $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; } }