DoctrineExtensions\Query\Oracle\Listagg::parse PHP Method

    public function parse(Parser $parser)
    {
        $lexer = $parser->getLexer();
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);
        $this->listaggField = $parser->StringPrimary();
        if ($lexer->isNextToken(Lexer::T_COMMA)) {
            $parser->match(Lexer::T_COMMA);
            $this->separator = $parser->StringExpression();
        }
        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
        if (!$lexer->isNextToken(Lexer::T_IDENTIFIER) || strtolower($lexer->lookahead['value']) != 'within') {
            $parser->syntaxError('WITHIN GROUP');
        }
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_GROUP);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);
        $this->orderBy = $parser->OrderByClause();
        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
        if ($lexer->isNextToken(Lexer::T_IDENTIFIER)) {
            if (strtolower($lexer->lookahead['value']) != 'over') {
                $parser->syntaxError('OVER');
            }
            $parser->match(Lexer::T_IDENTIFIER);
            $parser->match(Lexer::T_OPEN_PARENTHESIS);
            if (!$lexer->isNextToken(Lexer::T_IDENTIFIER) || strtolower($lexer->lookahead['value']) != 'partition') {
                $parser->syntaxError('PARTITION BY');
            }
            $parser->match(Lexer::T_IDENTIFIER);
            $parser->match(Lexer::T_BY);
            $this->partitionBy[] = $parser->StringPrimary();
            while ($lexer->isNextToken(Lexer::T_COMMA)) {
                $parser->match(Lexer::T_COMMA);
                $this->partitionBy[] = $parser->StringPrimary();
            }
            $parser->match(Lexer::T_CLOSE_PARENTHESIS);
        }
    }