[Koha-bugs] [Bug 9370] New: use Library::CallNumber::LC when splitting LC call numbers for spine labels

[bugzilla-daemon at bugs.koha-community.org]

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=9370

            Bug ID: 9370
           Summary: use Library::CallNumber::LC when splitting LC call
                    numbers for spine labels
    Classification: Unclassified
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: gmcharlt at gmail.com
          Reporter: gmcharlt at gmail.com

We should switch to using Library::CallNumber::LC for splitting LC call numbers
when generating spine labels for several reasons:

[1] Library::CallNumber::LC was written specifically for parsing LC call
numbers, while the current code in Koha was developed based on very few
examples.
[2] The module is currently being used by Evergreen.  Any future efforts to
improve LC call number parsing by updating Library::CallNumber::LC would
benefit both ILS projects.
[3] In bug 6281, I'm proposing using this module to improve sorting of LC call
numbers.  Using the module would reduce redundancy in Koha's code base.
[4] And, perhaps most importantly, it solves a problem reported by a library.

The immediate motivation for this change is an example call number that one of
our customers noted is being split incorrectly.  The LC number 'QH541.15.C6 C25
2012' is currently being split like this:

QH
541
.15
.C6
C25
2012

It should actually be split as follows:

QH
541.15
.C6
C25
2012

The ".15" after "541" is part of the main class number; it isn't a Cutter.

To test:

[1] Add an item record with the call number QH541.15.C6 C25 2012 and set it
classification source to lcc.
[2] Generate a spine label and verify that the call number is split like this:

QH
541.15
.C6
C25
2012

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