/**
* Return the next token and token type in a SQL string.
* Quoted strings, comments, reserved words, whitespace, and punctuation are all their own tokens.
*
* @param string $string The SQL string
* @param array $previous The result of the previous parseNextToken() call
*
* @return array An associative array containing the type and value of the token.
*/
protected function parseNextToken($string, $previous = null)
{
$matches = array();
$this->nextToken = array();
WhiteSpace::isWhiteSpace($this, $string, $matches);
Comment::isComment($this, $string);
Quoted::isQuoted($this, $string);
UserDefined::isUserDefinedVariable($this, $string);
Numeral::isNumeral($this, $string, $matches);
Boundary::isBoundary($this, $string, $matches);
Reserved::isReserved($this, $string, $previous);
LiteralString::isFunction($this, $string, $matches);
LiteralString::getNonReservedString($this, $string, $matches);
return $this->nextToken;
}
/**
* @param array $returnData
* @param string $string
*/
protected static function setTokenValueStartingWithAtSymbolAndWrapped(array &$returnData, $string)
{
if (!empty($string[1]) && ($string[1] === '"' || $string[1] === '\'' || $string[1] === '`')) {
$returnData[Tokenizer::TOKEN_VALUE] = '@' . Quoted::wrapStringWithQuotes(\substr($string, 1));
}
}