Newline MARC

fabricate.py

#!/usr/bin/env python
# coding: utf-8

import pymarc
import string

record = pymarc.Record()
record.add_field(
    pymarc.Field(
        tag = '245',
        indicators = ['0','1'],
        subfields = [
            'a', 'The pragmatic\nprogrammer : ',
            'b', 'from journeyman\nto master /',
            'c', 'Andrew Hunt, David\nThomas.'
        ]))

# create a "broken" version
with open("with.mrc", "w") as handle:
    w = pymarc.MARCWriter(handle)
    w.write(record)


# all possible subfield codes?
codes = [str(i) for i in range(10)] + [s for s in string.lowercase]

for field in record.fields:
    for c in codes:
        if not c in field:
            continue
        field[c] = field[c].replace("\n", "")

# create a "cleaned" version
with open("without.mrc", "w") as handle:
    w = pymarc.MARCWriter(handle)
    w.write(record)

Makefile

all:
	python fabricate.py

clean:
	rm -f with.mrc
	rm -f without.mrc

with.txt

00127     2200037   4500
245 01 $a The pragmatic
programmer :  $b from journeyman
to master / $c Andrew Hunt, David
Thomas.

without.txt

00124     2200037   4500
245 01 $a The pragmaticprogrammer :  $b from journeymanto master / $c Andrew Hunt, DavidThomas.