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- <?php
- namespace Doctrine\Common\Annotations;
- use Doctrine\Common\Lexer\AbstractLexer;
- use function ctype_alpha;
- use function is_numeric;
- use function str_replace;
- use function stripos;
- use function strlen;
- use function strpos;
- use function strtolower;
- use function substr;
- /**
- * Simple lexer for docblock annotations.
- */
- final class DocLexer extends AbstractLexer
- {
- public const T_NONE = 1;
- public const T_INTEGER = 2;
- public const T_STRING = 3;
- public const T_FLOAT = 4;
- // All tokens that are also identifiers should be >= 100
- public const T_IDENTIFIER = 100;
- public const T_AT = 101;
- public const T_CLOSE_CURLY_BRACES = 102;
- public const T_CLOSE_PARENTHESIS = 103;
- public const T_COMMA = 104;
- public const T_EQUALS = 105;
- public const T_FALSE = 106;
- public const T_NAMESPACE_SEPARATOR = 107;
- public const T_OPEN_CURLY_BRACES = 108;
- public const T_OPEN_PARENTHESIS = 109;
- public const T_TRUE = 110;
- public const T_NULL = 111;
- public const T_COLON = 112;
- public const T_MINUS = 113;
- /** @var array<string, int> */
- protected $noCase = [
- '@' => self::T_AT,
- ',' => self::T_COMMA,
- '(' => self::T_OPEN_PARENTHESIS,
- ')' => self::T_CLOSE_PARENTHESIS,
- '{' => self::T_OPEN_CURLY_BRACES,
- '}' => self::T_CLOSE_CURLY_BRACES,
- '=' => self::T_EQUALS,
- ':' => self::T_COLON,
- '-' => self::T_MINUS,
- '\\' => self::T_NAMESPACE_SEPARATOR,
- ];
- /** @var array<string, int> */
- protected $withCase = [
- 'true' => self::T_TRUE,
- 'false' => self::T_FALSE,
- 'null' => self::T_NULL,
- ];
- /**
- * Whether the next token starts immediately, or if there were
- * non-captured symbols before that
- */
- public function nextTokenIsAdjacent(): bool
- {
- return $this->token === null
- || ($this->lookahead !== null
- && ($this->lookahead['position'] - $this->token['position']) === strlen($this->token['value']));
- }
- /**
- * {@inheritdoc}
- */
- protected function getCatchablePatterns()
- {
- return [
- '[a-z_\\\][a-z0-9_\:\\\]*[a-z_][a-z0-9_]*',
- '(?:[+-]?[0-9]+(?:[\.][0-9]+)*)(?:[eE][+-]?[0-9]+)?',
- '"(?:""|[^"])*+"',
- ];
- }
- /**
- * {@inheritdoc}
- */
- protected function getNonCatchablePatterns()
- {
- return ['\s+', '\*+', '(.)'];
- }
- /**
- * {@inheritdoc}
- */
- protected function getType(&$value)
- {
- $type = self::T_NONE;
- if ($value[0] === '"') {
- $value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));
- return self::T_STRING;
- }
- if (isset($this->noCase[$value])) {
- return $this->noCase[$value];
- }
- if ($value[0] === '_' || $value[0] === '\\' || ctype_alpha($value[0])) {
- return self::T_IDENTIFIER;
- }
- $lowerValue = strtolower($value);
- if (isset($this->withCase[$lowerValue])) {
- return $this->withCase[$lowerValue];
- }
- // Checking numeric value
- if (is_numeric($value)) {
- return strpos($value, '.') !== false || stripos($value, 'e') !== false
- ? self::T_FLOAT : self::T_INTEGER;
- }
- return $type;
- }
- }
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