Edward Summers wrote:
The current documentation for the new method reads like this:
--
delete_subfield() allows you to remove subfields from a field:
# delete any subfield a in the field
$field->delete_subfield(code => 'a');
# delete any subfield a or u in the field
$field->delete_subfield(code => ['a', 'u']);
If you want to only delete subfields at a particular position you
can
use the position parameter:
# delete subfield u at the first position
$field->delete_subfield(code => 'u', position => 0);
# delete subfield u at first or second position
$field->delete_subfield(code => 'u', position => [0,1]);
If you implemented negative indexes, it would be nice to add an example:
# delete subfield u at last position
$field->delete_subfield(code => 'u', pos => [-1]);
You can specify a regex to for only deleting subfields that match:
# delete any subfield u that matches zombo.com
$field->delete_subfield(code => 'u', match => qr/zombo.com/);
The term "position" ("pos") seems a little ambiguous to me on the face
of it. Does (code => 'u', pos => 0) mean "the first subfield u" (which
is what I take it to mean) or "subfield u if it's the first subfield"
(which it might sound like outside the context of this discussion)?
Mike
--
Michael Kreyche
Systems Librarian
Associate Professor
Kent State University Libraries and Media Services
http://www.personal.kent.edu/~mkreyche
330-672-1918
