COPY command - CSV files

I wish modify COPY command for support of CSV files (dump/load files in
CSV format).
I think this option is very important from import data from spreedsheet
as OpenOffice/calc or M$/excel.
I have found this task in TODO list, also.

I've begin my work, modify COPY syntax in:

COPY tablename [ ( column [, ...] ) ]
FROM { 'filename' | STDIN }
[ [ WITH ]
[ BINARY ]
[ OIDS ]
[ DELIMITER [ AS ] 'delimiter' ]
[ [ OPTIONALLY ] ENCLOSED [ BY ] 'delimiter1' [ AND
'delimiter2' ] ]
[ NULL [ AS ] 'null string' ] ]

COPY tablename [ ( column [, ...] ) ]
TO { 'filename' | STDOUT }
[ [ WITH ]
[ BINARY ]
[ OIDS ]
[ DELIMITER [ AS ] 'delimiter' ]
[ ENCLOSED [ BY ] 'delimiter1' [ AND 'delimiter2' ] ]
[ NULL [ AS ] 'null string' ] ]

Syntax is like to control-file of Oracle's utility sql*load.
Enclosed define the first and second delimiters (if are different)
which surround each field.
The delimiters may be optionally if keyword exists.

At soon!
Umberto Zappi.