private function tokenizeOperator(&$length)
    {
        if (!$this->isOperator($length, $content)) {
            return false;
        }

        $this->addTokenFromBuffer();
        switch ($this->substring($length)) {
            case '(':
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                $this->_currentToken[] = new SqlToken(['type' => SqlToken::TYPE_PARENTHESIS]);
                $this->_tokenStack->push($this->_currentToken[-1]);
                $this->_currentToken = $this->_tokenStack->top();
                break;
            case ')':
                $this->_tokenStack->pop();
                $this->_currentToken = $this->_tokenStack->top();
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => ')',
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                break;
            case ';':
                if (!$this->_currentToken->getHasChildren()) {
                    break;
                }

                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                $this->_tokenStack->pop();
                $this->_currentToken = $this->_tokenStack->top();
                $this->_currentToken[] = new SqlToken(['type' => SqlToken::TYPE_STATEMENT]);
                $this->_tokenStack->push($this->_currentToken[-1]);
                $this->_currentToken = $this->_tokenStack->top();
                break;
            default:
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                break;
        }

        return true;
    }
private function tokenizeOperator(&$length)
    {
        if (!$this->isOperator($length, $content)) {
            return false;
        }

        $this->addTokenFromBuffer();
        switch ($this->substring($length)) {
            case '(':
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                $this->_currentToken[] = new SqlToken(['type' => SqlToken::TYPE_PARENTHESIS]);
                $this->_tokenStack->push($this->_currentToken[-1]);
                $this->_currentToken = $this->_tokenStack->top();
                break;
            case ')':
                $this->_tokenStack->pop();
                $this->_currentToken = $this->_tokenStack->top();
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => ')',
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                break;
            case ';':
                if (!$this->_currentToken->getHasChildren()) {
                    break;
                }

                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                $this->_tokenStack->pop();
                $this->_currentToken = $this->_tokenStack->top();
                $this->_currentToken[] = new SqlToken(['type' => SqlToken::TYPE_STATEMENT]);
                $this->_tokenStack->push($this->_currentToken[-1]);
                $this->_currentToken = $this->_tokenStack->top();
                break;
            default:
                $this->_currentToken[] = new SqlToken([
                    'type' => SqlToken::TYPE_OPERATOR,
                    'content' => is_string($content) ? $content : $this->substring($length),
                    'startOffset' => $this->offset,
                    'endOffset' => $this->offset + $length,
                ]);
                break;
        }

        return true;
    }
private function tokenizeOperator ( & $ length ) { if ( ! $ this -> isOperator ( $ length , $ content ) ) { return false ; } $ this -> addTokenFromBuffer ( ) ; switch ( $ this -> substring ( $ length ) ) { case '(' : $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_OPERATOR , 'content' => is_string ( $ content ) ? $ content : $ this -> substring ( $ length ) , 'startOffset' => $ this -> offset , 'endOffset' => $ this -> offset + $ length , ] ) ; $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_PARENTHESIS ] ) ; $ this -> _tokenStack -> push ( $ this -> _currentToken [ - 1 ] ) ; $ this -> _currentToken = $ this -> _tokenStack -> top ( ) ; break ; case ')' : $ this -> _tokenStack -> pop ( ) ; $ this -> _currentToken = $ this -> _tokenStack -> top ( ) ; $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_OPERATOR , 'content' => ')' , 'startOffset' => $ this -> offset , 'endOffset' => $ this -> offset + $ length , ] ) ; break ; case ';' : if ( ! $ this -> _currentToken -> getHasChildren ( ) ) { break ; } $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_OPERATOR , 'content' => is_string ( $ content ) ? $ content : $ this -> substring ( $ length ) , 'startOffset' => $ this -> offset , 'endOffset' => $ this -> offset + $ length , ] ) ; $ this -> _tokenStack -> pop ( ) ; $ this -> _currentToken = $ this -> _tokenStack -> top ( ) ; $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_STATEMENT ] ) ; $ this -> _tokenStack -> push ( $ this -> _currentToken [ - 1 ] ) ; $ this -> _currentToken = $ this -> _tokenStack -> top ( ) ; break ; default : $ this -> _currentToken [ ] = new SqlToken ( [ 'type' => SqlToken :: TYPE_OPERATOR , 'content' => is_string ( $ content ) ? $ content : $ this -> substring ( $ length ) , 'startOffset' => $ this -> offset , 'endOffset' => $ this -> offset + $ length , ] ) ; break ; } return true ; }
Determines whether there is an operator at the current offset and adds it to the token children.
@param int $length
@return bool
Determines whether there is an operator at the current offset and adds it to the token children .