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PHP Класс SqlParser\Lexer

The output of the lexer is affected by the context of the SQL statement. Показать файл Открыть проект Примеры использования класса

Открытые свойства

Свойство	Тип	Описание
$DEFAULT_DELIMITER	string	The default delimiter. This is used, by default, in all new instances.
$PARSER_METHODS	array	A list of methods that are used in lexing the SQL query.
$delimiter	string	This may change during lexing.
$delimiterLen	integer	Because parseDelimiter can be called a lot, it would perform a lot of calls to strlen, which might affect performance when the delimiter is big.
$errors	SqlParser\Exceptions\LexerException[]	Usually, the lexing does not stop once an error occurred because that error might be false positive or a partial result (even a bad one) might be needed.
$last	integer	The index of the last parsed character.
$len	integer	By storing its length, a lot of time is saved, because parsing methods would call strlen everytime.
$list	TokensList	Tokens extracted from given strings.
$str	string | UtfString	The string to be parsed.
$strict	boolean	Whether errors should throw exceptions or just be stored.

Открытые методы

Метод	Описание
__construct ( string | UtfString $str, boolean $strict = false, string $delimiter = null )	Constructor.
error ( string $msg = '', string $str = '', integer $pos, integer $code ) : void	Creates a new error log.
getTokens ( string | UtfString $str, boolean $strict = false, string $delimiter = null ) : TokensList	Gets the tokens list parsed by a new instance of a lexer.
lex ( ) : void	Parses the string and extracts lexemes.
parseBool ( ) : Token	Parses a boolean.
parseComment ( ) : Token	Parses a comment.
parseDelimiter ( ) : Token	Parses the delimiter of the query.
parseKeyword ( ) : Token	Parses a keyword.
parseLabel ( ) : Token	Parses a label.
parseNumber ( ) : Token	Parses a number.
parseOperator ( ) : Token	Parses an operator.
parseString ( string $quote = '' ) : Token	Parses a string.
parseSymbol ( ) : Token	Parses a symbol.
parseUnknown ( ) : Token	Parses unknown parts of the query.
parseWhitespace ( ) : Token	Parses a whitespace.
setDelimiter ( string $delimiter )	Sets the delimiter.

Описание методов

Описание свойств