| 1: | <?php declare(strict_types=1); |
| 2: | |
| 3: | namespace Salient\Utility\Exception; |
| 4: | |
| 5: | use Salient\Utility\Arr; |
| 6: | use Salient\Utility\Format; |
| 7: | use Stringable; |
| 8: | |
| 9: | |
| 10: | |
| 11: | |
| 12: | class PcreErrorException extends UtilityException |
| 13: | { |
| 14: | private const ERROR_MESSAGE_MAP = [ |
| 15: | \PREG_NO_ERROR => 'No error', |
| 16: | \PREG_INTERNAL_ERROR => 'Internal error', |
| 17: | \PREG_BAD_UTF8_ERROR => 'Malformed UTF-8 characters, possibly incorrectly encoded', |
| 18: | \PREG_BAD_UTF8_OFFSET_ERROR => 'The offset did not correspond to the beginning of a valid UTF-8 code point', |
| 19: | \PREG_BACKTRACK_LIMIT_ERROR => 'Backtrack limit exhausted', |
| 20: | \PREG_RECURSION_LIMIT_ERROR => 'Recursion limit exhausted', |
| 21: | \PREG_JIT_STACKLIMIT_ERROR => 'JIT stack limit exhausted', |
| 22: | ]; |
| 23: | |
| 24: | |
| 25: | protected $Pattern; |
| 26: | |
| 27: | protected $Subject; |
| 28: | |
| 29: | private static array $ErrorNameMap; |
| 30: | |
| 31: | |
| 32: | |
| 33: | |
| 34: | |
| 35: | |
| 36: | |
| 37: | public function __construct(?int $error, string $function, $pattern, $subject) |
| 38: | { |
| 39: | $error ??= preg_last_error(); |
| 40: | $message = \PHP_VERSION_ID < 80000 |
| 41: | ? self::ERROR_MESSAGE_MAP[$error] ?? 'Unknown error' |
| 42: | : preg_last_error_msg(); |
| 43: | |
| 44: | $this->Pattern = $pattern; |
| 45: | $this->Subject = $subject; |
| 46: | |
| 47: | parent::__construct(sprintf( |
| 48: | 'Call to %s() failed with %s (%s)', |
| 49: | $function, |
| 50: | (self::$ErrorNameMap ??= self::getErrorNameMap())[$error] ?? "#$error", |
| 51: | $message, |
| 52: | )); |
| 53: | } |
| 54: | |
| 55: | |
| 56: | |
| 57: | |
| 58: | public function __toString(): string |
| 59: | { |
| 60: | $detail = ''; |
| 61: | foreach ([ |
| 62: | 'Pattern' => is_array($this->Pattern) |
| 63: | ? array_map( |
| 64: | fn($value) => is_string($value) ? $value : '<callable>', |
| 65: | $this->Pattern, |
| 66: | ) |
| 67: | : $this->Pattern, |
| 68: | 'Subject' => $this->Subject, |
| 69: | ] as $key => $value) { |
| 70: | if (is_array($value)) { |
| 71: | $value = Arr::isList($value) |
| 72: | ? Format::list($value) |
| 73: | : Format::array($value); |
| 74: | } |
| 75: | $detail .= sprintf("\n\n%s:\n%s", $key, rtrim($value, "\n")); |
| 76: | } |
| 77: | |
| 78: | return parent::__toString() . $detail; |
| 79: | } |
| 80: | |
| 81: | |
| 82: | |
| 83: | |
| 84: | private static function getErrorNameMap(): array |
| 85: | { |
| 86: | |
| 87: | $constants = get_defined_constants(true)['pcre']; |
| 88: | $map = []; |
| 89: | foreach ($constants as $name => $value) { |
| 90: | if (substr($name, -6) === '_ERROR') { |
| 91: | |
| 92: | $map[$value] = $name; |
| 93: | } |
| 94: | } |
| 95: | return $map; |
| 96: | } |
| 97: | } |
| 98: | |