Re: Deleting a subfield using MARC::Record

On May 3, 2006, at 11:25 AM, Mark Jordan wrote:

> For example, in a given batch, most but not all records have an 856  
> subfield 3, followed by multiple subfield u's. If you ask to delete  
> the first u using pos, then your target will be different  
> determined by the presence of subfield 3. If you know that you   
> want to eliminate u's (without regard to what else is in the field)  
> then your target would be easier to hit.

Ok this I like, having a use case like this makes it much easier to  
decide about the API. How about we go back to occurrence and remove pos?

>
> However, you raise a good point -- how much functionality do people  
> need? Maybe some actual examples from the wild would be useful. I  
> can supply some but probably not until tomorrow afternoon since I  
> have a presentation to prepare for tomorrow. If other users have  
> some examples of real records or use cases they might clarify the  
> most common usage. I'll see what I can find tomorrow.

Yeah, you know if you have the interest/time it would be great if you  
could add a couple tests to the existing test file. The tests need  
not pass, but they should illustrate they should illustrate the use.  
Hop onto #code4lib and I can walk you through how to do this, and get  
your access set up if you are interested.

//Ed