Getting sql text from hash value

Here is a function and sql script which uses this function to display sql text from its hash value:

create or replace function user.hashsql(hnum number) return user.sqltable PIPELINED is
sqlline varchar2(64);
sqlt user.sqlline:=user.sqlline('');
tmptxt varchar(2000);
ln int;
ind int;
cursor cor_sql is
select SQL_TEXT from v$sqltext_with_newlines where HASH_VALUE=hnum order by PIECE;
begin
open cor_sql;
fetch cor_sql into sqlline;
while cor_sql%FOUND loop
-- SELECT REPLACE(sqlline,chr(32),'') into sqlline from dual;
ln := length(sqlline);
ind:=1;
while (ind <>
if substr(sqlline,ind,1) not in (chr(10),chr(13)) then
ind := ind+1;
else
tmptxt := tmptxt||substr(sqlline,1,ind);
sqlt.line:=(tmptxt);
PIPE ROW(sqlt);
sqlline:=substr(sqlline,1,ind+1);
tmptxt:='';
ln := length(sqlline);
ind := 1;
end if;
end loop;
tmptxt:=tmptxt||sqlline;
if length(tmptxt) > 100 then
sqlt.line:=(substr(tmptxt,1,100));
PIPE ROW(sqlt);
tmptxt:=substr(tmptxt,101,length(tmptxt)+1);
end if;
fetch cor_sql into sqlline;
end loop;
close cor_sql;
sqlt.line:=tmptxt;
PIPE ROW(sqlt);
RETURN;
end;
/

set linesize 2000
select * from table(user.hashsql(&hash_value))