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<?php |
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/* |
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* Copyright (c) 2015 Juan José Torroglosa Ramón |
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* |
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* This file is part of the Cliphar package. |
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* |
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* For the full copyright and license information, please view |
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* the LICENSE file that was distributed with this source code. |
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*/ |
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namespace Cliphar\InputDefinition\Lexer; |
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use Cliphar\InputDefinition\Exception\LexerException; |
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class DefinitionLexer |
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{ |
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const T_OPEN_OPTION_SYMBOL = "T_OPEN_OPTION_SYMBOL"; |
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const T_CLOSE_OPTION_SYMBOL = "T_CLOSE_OPTION_SYMBOL"; |
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const T_OPEN_ARGUMENT_SYMBOL = "T_OPEN_ARGUMENT_SYMBOL"; |
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const T_CLOSE_ARGUMENT_SYMBOL = "T_CLOSE_ARGUMENT_SYMBOL"; |
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const T_NAME = "T_NAME"; |
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const T_ABBREV = "T_ABBREV"; |
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const T_ABBREV_SEPARATOR = "T_ABBREV_SEPARATOR"; |
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const T_STRING_WITH_SPACES = "T_STRING_WITH_SPACES"; |
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const T_EQUAL_SIGN = "T_EQUAL_SIGN"; |
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const T_OPTIONAL_MARK = "T_OPTIONAL_MARK"; |
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const T_WHITESPACES = "T_WHITESPACES"; |
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private static $tokenToRegex = null; |
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private static function getTokenToRegex() |
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{ |
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if (self::$tokenToRegex === null) { |
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self::$tokenToRegex = array( |
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self::T_OPEN_OPTION_SYMBOL => '^\[', |
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self::T_CLOSE_OPTION_SYMBOL => '^\]', |
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self::T_OPEN_ARGUMENT_SYMBOL => '^\<', |
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self::T_CLOSE_ARGUMENT_SYMBOL => '^\>', |
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self::T_OPTIONAL_MARK => '^\?', |
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self::T_EQUAL_SIGN => '^=', |
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self::T_STRING_WITH_SPACES => '^"[^"]*"', |
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self::T_NAME => '^[A-Za-z0-9\-\_]{2,}', |
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self::T_ABBREV => '^[A-Za-z]', |
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self::T_ABBREV_SEPARATOR => '^\|', |
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self::T_WHITESPACES => '^\s+' |
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); |
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} |
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return self::$tokenToRegex; |
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} |
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/** |
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* @var string |
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*/ |
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private $string; |
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/** |
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* @var int |
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*/ |
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private $strlen; |
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/** |
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* @var int |
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*/ |
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private $offset = 0; |
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/** |
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* @var string |
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*/ |
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private $lastOccurrence; |
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/** |
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* DefinitionLexer constructor. |
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* @param string $string |
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*/ |
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public function __construct($string) |
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{ |
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$this->string = $string; |
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$this->strlen = strlen($string); |
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} |
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public function getNextToken() |
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{ |
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foreach (self::getTokenToRegex() as $token => $regex) { |
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if ($this->offset >= $this->strlen) { |
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$this->lastOccurrence = array(null, null, null); |
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return $this->lastOccurrence; |
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} |
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$substr = substr($this->string, $this->offset); |
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$result = preg_match('~'. $regex . '~', $substr, $matches, 0); |
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if ($result) { |
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$this->offset += strlen($matches[0]); |
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$this->lastOccurrence = array($token, $matches[0], $this->offset); |
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return $this->lastOccurrence; |
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} |
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} |
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throw new LexerException("Unexpected character found at: {$substr}". PHP_EOL); |
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} |
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public function getLastOccurrence() |
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{ |
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return $this->lastOccurrence; |
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} |
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} |
jjtorroglosa /
cliphar
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..