Файловый менеджер

Файловый менеджер - Редактировать - /var/www/xthruster/html/wp-content/plugins/sitepress-multilingual-cms/vendor/wpml/sql-parser/src/Token.php

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<?php /** * Defines a token along with a set of types and flags and utility functions. * * An array of tokens will result after parsing the query. / namespace PhpMyAdmin\SqlParser; /* * A structure representing a lexeme that explicitly indicates its * categorization for the purpose of parsing. * * @category Tokens * * @license https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+ / class Token { // Types of tokens (a vague description of a token's purpose). /* * This type is used when the token is invalid or its type cannot be * determined because of the ambiguous context. Further analysis might be * required to detect its type. * * @var int / const TYPE_NONE = 0; /* * SQL specific keywords: SELECT, UPDATE, INSERT, etc. * * @var int / const TYPE_KEYWORD = 1; /* * Any type of legal operator. * * Arithmetic operators: +, -, , /, etc. Logical operators: ===, <>, !==, etc. * Bitwise operators: &, \|, ^, etc. * Assignment operators: =, +=, -=, etc. * SQL specific operators: . (e.g. .. WHERE database.table ..), * * (e.g. SELECT * FROM ..) * * @var int / const TYPE_OPERATOR = 2; /* * Spaces, tabs, new lines, etc. * * @var int / const TYPE_WHITESPACE = 3; /* * Any type of legal comment. * * Bash (#), C (/* \/) or SQL (--) comments: * -- SQL-comment * * #Bash-like comment * * /C-like comment\/ * * or: * * /C-like comment\/ * Backslashes were added to respect PHP's comments syntax. * * @var int / const TYPE_COMMENT = 4; /* * Boolean values: true or false. * * @var int / const TYPE_BOOL = 5; /* * Numbers: 4, 0x8, 15.16, 23e42, etc. * * @var int / const TYPE_NUMBER = 6; /* * Literal strings: 'string', "test". * Some of these strings are actually symbols. * * @var int / const TYPE_STRING = 7; /* * Database, table names, variables, etc. * For example: ```SELECT `foo`, `bar` FROM `database`.`table`;```. * * @var int / const TYPE_SYMBOL = 8; /* * Delimits an unknown string. * For example: ```SELECT * FROM test;```, `test` is a delimiter. * * @var int / const TYPE_DELIMITER = 9; /* * Labels in LOOP statement, ITERATE statement etc. * For example (only for begin label): * begin_label: BEGIN [statement_list] END [end_label] * begin_label: LOOP [statement_list] END LOOP [end_label] * begin_label: REPEAT [statement_list] ... END REPEAT [end_label] * begin_label: WHILE ... DO [statement_list] END WHILE [end_label]. * * @var int / const TYPE_LABEL = 10; // Flags that describe the tokens in more detail. // All keywords must have flag 1 so `Context::isKeyword` method doesn't // require strict comparison. const FLAG_KEYWORD_RESERVED = 2; const FLAG_KEYWORD_COMPOSED = 4; const FLAG_KEYWORD_DATA_TYPE = 8; const FLAG_KEYWORD_KEY = 16; const FLAG_KEYWORD_FUNCTION = 32; // Numbers related flags. const FLAG_NUMBER_HEX = 1; const FLAG_NUMBER_FLOAT = 2; const FLAG_NUMBER_APPROXIMATE = 4; const FLAG_NUMBER_NEGATIVE = 8; const FLAG_NUMBER_BINARY = 16; // Strings related flags. const FLAG_STRING_SINGLE_QUOTES = 1; const FLAG_STRING_DOUBLE_QUOTES = 2; // Comments related flags. const FLAG_COMMENT_BASH = 1; const FLAG_COMMENT_C = 2; const FLAG_COMMENT_SQL = 4; const FLAG_COMMENT_MYSQL_CMD = 8; // Operators related flags. const FLAG_OPERATOR_ARITHMETIC = 1; const FLAG_OPERATOR_LOGICAL = 2; const FLAG_OPERATOR_BITWISE = 4; const FLAG_OPERATOR_ASSIGNMENT = 8; const FLAG_OPERATOR_SQL = 16; // Symbols related flags. const FLAG_SYMBOL_VARIABLE = 1; const FLAG_SYMBOL_BACKTICK = 2; const FLAG_SYMBOL_USER = 4; const FLAG_SYMBOL_SYSTEM = 8; const FLAG_SYMBOL_PARAMETER = 16; /* * The token it its raw string representation. * * @var string / public $token; /* * The value this token contains (i.e. token after some evaluation). * * @var mixed / public $value; /* * The keyword value this token contains, always uppercase. * * @var mixed / public $keyword; /* * The type of this token. * * @var int / public $type; /* * The flags of this token. * * @var int / public $flags; /* * The position in the initial string where this token started. * * The position is counted in chars, not bytes, so you should * use mb_* functions to properly handle utf-8 multibyte chars. * * @var int / public $position; /* * Constructor. * * @param string $token the value of the token * @param int $type the type of the token * @param int $flags the flags of the token / public function __construct($token, $type = 0, $flags = 0) { $this->token = $token; $this->type = $type; $this->flags = $flags; $this->keyword = null; $this->value = $this->extract(); } /* * Does little processing to the token to extract a value. * * If no processing can be done it will return the initial string. * * @return mixed / public function extract() { switch ($this->type) { case self::TYPE_KEYWORD: $this->keyword = strtoupper($this->token); if (! ($this->flags & self::FLAG_KEYWORD_RESERVED)) { // Unreserved keywords should stay the way they are because they // might represent field names. return $this->token; } return $this->keyword; case self::TYPE_WHITESPACE: return ' '; case self::TYPE_BOOL: return strtoupper($this->token) === 'TRUE'; case self::TYPE_NUMBER: $ret = str_replace('--', '', $this->token); // e.g. ---42 === -42 if ($this->flags & self::FLAG_NUMBER_HEX) { if ($this->flags & self::FLAG_NUMBER_NEGATIVE) { $ret = str_replace('-', '', $this->token); $ret = -hexdec($ret); } else { $ret = hexdec($ret); } } elseif (($this->flags & self::FLAG_NUMBER_APPROXIMATE) \|\| ($this->flags & self::FLAG_NUMBER_FLOAT) ) { $ret = (float) $ret; } elseif (! ($this->flags & self::FLAG_NUMBER_BINARY)) { $ret = (int) $ret; } return $ret; case self::TYPE_STRING: // Trims quotes. $str = $this->token; $str = mb_substr($str, 1, -1, 'UTF-8'); // Removes surrounding quotes. $quote = $this->token[0]; $str = str_replace($quote . $quote, $quote, $str); // Finally unescapes the string. // // `stripcslashes` replaces escape sequences with their // representation. // // NOTE: In MySQL, `\f` and `\v` have no representation, // even they usually represent: form-feed and vertical tab. $str = str_replace('\f', 'f', $str); $str = str_replace('\v', 'v', $str); $str = stripcslashes($str); return $str; case self::TYPE_SYMBOL: $str = $this->token; if (isset($str[0]) && ($str[0] === '@')) { // `mb_strlen($str)` must be used instead of `null` because // in PHP 5.3- the `null` parameter isn't handled correctly. $str = mb_substr( $str, (! empty($str[1]) && ($str[1] === '@')) ? 2 : 1, mb_strlen($str), 'UTF-8' ); } if (isset($str[0]) && ($str[0] === ':')) { $str = mb_substr($str, 1, mb_strlen($str), 'UTF-8'); } if (isset($str[0]) && (($str[0] === '`') \|\| ($str[0] === '"') \|\| ($str[0] === '\'')) ) { $quote = $str[0]; $str = str_replace($quote . $quote, $quote, $str); $str = mb_substr($str, 1, -1, 'UTF-8'); } return $str; } return $this->token; } /* * Converts the token into an inline token by replacing tabs and new lines. * * @return string */ public function getInlineToken() { return str_replace( array( "\r", "\n", "\t", ), array( '\r', '\n', '\t', ), $this->token ); } }

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