SQL & PL/SQL :: Split String Function For Large Number Of Records?

I have created a function that is used for splitting a comma separated string & give the output in tabular form.here is the function

Here I have used CLOB as my input string will be huge(greater than max limit of varchar2)

CREATE OR REPLACE TYPE SPLIT_TBL_CLOB AS TABLE OF CLOB;
CREATE OR REPLACE FUNCTION CSVTOSTRING_CLOB
(
P_LIST CLOB,
P_DEL VARCHAR2 := ','
) RETURN SPLIT_TBL_CLOB PIPELINED

[code]....

But here I am facing 2 problems.

1. The function is not accepting a large string & I am getting the error

ORA-01704: string literal too long

2. The function is going for an infinite loop.