RE: Deleting a subfield using MARC::Record

On Monday, May 01, 2006 1:24 PM, Brad Baxter wrote:
>On 4/30/06, Edward Summers <[email protected]> wrote:
>[snip]
>> # delete first two subfield u
>> $field->delete_subfield(code => 'u', count => 2);
>
>I don't think I like it this way.  How would you delete just 
>the second one?
>I'd rather see 'count' mean 'occurrence', so the above would mean
>delete the second subfield u.  And ...
>
># delete second and third subfield u
>$field->delete_subfield(code => 'u', count => 2, count => 3);
>

When I looked at it, I also wondered about 'count' being 'position' or
something like that, to be able to note which occurrence. It might be useful
to have both--if you know it is always the 1st 2 occurrences of the
subfields, use 'count', but if you know it is the 1st and 3rd, then use
'position' or 'occurrence'.

examples:
#remove 1st 2 subfield 'u'
$field->delete_subfield(code => 'u', count => 2);

#remove 1st and 3rd subfield 'u'
$field->delete_subfield(code => 'u', occurence => (0, 2)); #or (1, 3)

#remove last subfield u
$field->delete_subfield(code => 'u', occurence => (-1));

--

Bryan Baldus
[email protected]
[email protected]
http://home.inwave.com/eija