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Merge pull request #619 from nextras/udpate-dependencies
Udpate dependencies
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| <?php declare(strict_types = 1); | ||
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| namespace Nextras\Orm\Entity\Reflection\Parser; | ||
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| /** | ||
| * @internal | ||
| */ | ||
| class Token | ||
| { | ||
| public const KEYWORD = 1; | ||
| public const STRING = 2; | ||
| public const LBRACKET = 3; | ||
| public const RBRACKET = 4; | ||
| public const EQUAL = 5; | ||
| public const SEPARATOR = 6; | ||
| public const WHITESPACE = 7; | ||
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| public function __construct( | ||
| public readonly string $value, | ||
| public readonly int $type, | ||
| public readonly int $offset, | ||
| ) | ||
| { | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| <?php declare(strict_types = 1); | ||
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| namespace Nextras\Orm\Entity\Reflection\Parser; | ||
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| use Nextras\Orm\Exception\InvalidStateException; | ||
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| /** | ||
| * @internal | ||
| */ | ||
| class TokenLexer | ||
| { | ||
| /** @const regular expression for single & double quoted PHP string */ | ||
| public const RE_STRING = '\'(?:\\\\.|[^\'\\\\])*\'|"(?:\\\\.|[^"\\\\])*"'; | ||
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| private string $tokenizerRegexp; | ||
| /** @var list<int> */ | ||
| private array $tokenizerTypes; | ||
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| public function __construct() | ||
| { | ||
| $patterns = [ | ||
| Token::STRING => self::RE_STRING, | ||
| Token::LBRACKET => '\[', | ||
| Token::RBRACKET => '\]', | ||
| Token::EQUAL => '=', | ||
| Token::KEYWORD => '[a-zA-Z0-9_:$.*>\\\\-]+', | ||
| Token::SEPARATOR => ',', | ||
| Token::WHITESPACE => '\s+', | ||
| ]; | ||
| $this->tokenizerRegexp = '~(' . implode(')|(', $patterns) . ')~A'; | ||
| $this->tokenizerTypes = array_keys($patterns); | ||
| } | ||
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| public function lex(string $input): TokenStream | ||
| { | ||
| $tokens = $this->tokenize($input); | ||
| $tokens = array_filter($tokens, function ($token): bool { | ||
| return $token->type !== Token::WHITESPACE; | ||
| }); | ||
| $tokens = array_values($tokens); | ||
| return new TokenStream($tokens); | ||
| } | ||
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| /** | ||
| * @return list<Token> | ||
| */ | ||
| private function tokenize(string $input): array | ||
| { | ||
| preg_match_all($this->tokenizerRegexp, $input, $tokens, PREG_SET_ORDER); | ||
| if (preg_last_error() !== PREG_NO_ERROR) { | ||
| throw new InvalidStateException(array_flip(get_defined_constants(true)['pcre'])[preg_last_error()]); | ||
| } | ||
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| $len = 0; | ||
| $result = []; | ||
| $count = count($this->tokenizerTypes); | ||
| foreach ($tokens as $token) { | ||
| $type = null; | ||
| for ($i = 1; $i <= $count; $i++) { | ||
| if (!isset($token[$i])) { | ||
| break; | ||
| } elseif ($token[$i] !== '') { | ||
| $type = $this->tokenizerTypes[$i - 1]; | ||
| break; | ||
| } | ||
| } | ||
| if ($type === null) { | ||
| throw new InvalidStateException("Unknown token type for '$token[0]'."); | ||
| } | ||
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| $token = new Token($token[0], $type, $len); | ||
| $result[] = $token; | ||
| $len += strlen($token->value); | ||
| } | ||
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| if ($len !== strlen($input)) { | ||
| [$line, $col] = self::getCoordinates($input, $len); | ||
| $unexpectedToken = str_replace("\n", '\n', substr($input, $len, 10)); | ||
| throw new InvalidStateException("Unexpected '$unexpectedToken' on line $line, column $col."); | ||
| } | ||
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| return $result; | ||
| } | ||
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| /** | ||
| * Returns (line, column) position of token in input string. | ||
| * @return array{int, int} | ||
| */ | ||
| private static function getCoordinates(string $text, int $offset): array | ||
| { | ||
| $text = substr($text, 0, $offset); | ||
| $pos = strrpos("\n" . $text, "\n"); | ||
| return [substr_count($text, "\n") + 1, $offset - ($pos === false ? 0 : $pos) + 1]; | ||
| } | ||
| } |
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