Person.py
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	import re

	from Pyblio.Format.DSL import lazy


	def maybe (value, prefix = '', postfix = '', default = ''):
	if value: return prefix + value + postfix
	return default

	def _lastFirst(record, authors):
	return [ '%s%s' % (x.last, maybe (x.first, prefix = ', '))
	for x in authors(record) ]

	lastFirst = lazy (_lastFirst)

	def _firstLast (record, authors):
	return [ '%s%s' % (maybe (x.first, postfix = ' '), x.last)
	for x in authors(record) ]

	firstLast = lazy (_firstLast)

	_ini_re = re.compile (r'([.-]\|\s+)')

	def initials (name):
	""" Normalizes a first name as an initial """

	if not name:
	return None

	# if the name is full upper, we assume it is already the
	# contracted initials form.
	if (name.upper() == name and
	len(name) < 4 and
	_ini_re.search(name) is None):
	return '.'.join(name) + '.'

	res = []

	for p in _ini_re.split (name):
	if not p.strip () or p == '.': continue

	if p != '-': p = p [0] + '.'

	res.append (p)

	return ''.join (res)

	def _initialLast (record, authors):
	return [ '%s%s' % (maybe (initials (x.first), postfix = ' '), x.last)
	for x in authors(record) ]

	initialLast = lazy (_initialLast)