Embedded fields of UNIMARC

[isergey]

Thank you for pymarc!
But pymarc can't handle embedded fields in UNIMARC scheme. Eg:

EX 1 Embedded fields technique
200 1#$aKesteven chronicle ...
205 ##$aFosse Way ed.
430 #1$12001#$aLincolnshire chronicle$1205##$aNorth Kesteven ed.

More info: http://archive.ifla.org/VI/3/p1996-1/uni4.htm#410

[isergey]

Bad code, but work :)

https://gist.github.com/1051026

[edsu]

Sorry this has sat open for a while. Do you happen to have a record I can test with?

[isergey]

01527naa2a2200217#i#450#
001RU\SPSTU\analits2005\45776
00520080916154518.0
035##$aRU\SPSTU\analits2005\45775
100##$a20080916a2008####k##y0rusy01020304ba
1010#$aeng
102##$aRU
2001#$aMega-universitet : actionstrategies on the distance education market$fI. Krutiy, D. Zueva
2251#$aСовременная социальная проблематика
300##$9547$aБюллетень "Высшая школа" №3 за 2008г.
461##$1
001RU\SPSTU\ser\146298$1
011##$a1561-2465$1
1010#$arus$1
102##$aRU$1
2001#$aСоциология образования$eДайджест российской и зарубежной прессы $fСовременная гуманитарная академия$1
210##$aМ.$d2001-$cИзд-во СГУ$1
311##$aДо №12 2005 г. в надзаг.: Современный гуманитарный университет$1
6101#$aсоциология$aобразование$aпреподаватели$aстуденты$1
686##$2rubbk$a74.04(2)$1
686##$2rubbk$a74.584(2)$1
686##$2rubbk$a60.550.55я5$1
71200$aСовременная гуманитарная академия
463##$1
001RU\SPSTU\ser\234338$1
1010#$arus$1
102##$aRU$1
2000#$a№4$vС.72-98$1
210##$d2008
6101#$aсоциальные процессы$aпроблемы образования$aмега-вузы
700#1$aKrutiy$bI.
701#1$aZueva$bD.
801#1$aRU$b19013582$c20080916$gPSBO
998##$aMe:0ac000000Krut

Field 463 have subfield $1 with inner fields 001, 101, 200 etc (inner record). Lang of record - russian, encoding UTF-8.
Record file https://github.com/isergey/marc/raw/master/record.mrc

[edsu]

Thanks for the record. pymarc seems to be able to read it. For example this works:

record = pymarc.reader.MARCReader(file("record.mrc")).next()

What specifically isn't working for you?

[isergey]

Yes, it's work, but now inner fields handling as plain text. In my patch, inner fields converts to Field instances. it is more easy for working with record , as it seems to me.

[edsu]

I'm still confused about what is broken. Can you supply a unit test?

[anarchivist]

I think I understand. UNIMARC allows for fields to be embedded in certain linking entry fields (4XXs), as expressed in the "1" subfields in some of the records above.

@isergey - @edsu is right; we would need a unit test for the code to make sure it's working and further changes don't break the rest of the module.