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__init__.py
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__init__.py
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# -*- coding: utf-8 -*-
import re, web
from unicodedata import normalize
import openlibrary.catalog.merge.normalize as merge
import six
try:
cmp = cmp # Python 2
except NameError:
def cmp(x, y): # Python 3
return (x > y) - (x < y)
re_date = map (re.compile, [
'(?P<birth_date>\d+\??)-(?P<death_date>\d+\??)',
'(?P<birth_date>\d+\??)-',
'b\.? (?P<birth_date>(?:ca\. )?\d+\??)',
'd\.? (?P<death_date>(?:ca\. )?\d+\??)',
'(?P<birth_date>.*\d+.*)-(?P<death_date>.*\d+.*)',
'^(?P<birth_date>[^-]*\d+[^-]+ cent\.[^-]*)$'])
re_ad_bc = re.compile(r'\b(B\.C\.?|A\.D\.?)')
re_date_fl = re.compile('^fl[., ]')
re_number_dot = re.compile('\d{2,}[- ]*(\.+)$')
re_l_in_date = re.compile('(l\d|\dl)')
re_end_dot = re.compile('[^ .][^ .]\.$', re.UNICODE)
re_marc_name = re.compile('^(.*?),+ (.*)$')
re_year = re.compile(r'\b(\d{4})\b')
re_brackets = re.compile('^(.+)\[.*?\]$')
def key_int(rec):
# extract the number from a key like /a/OL1234A
return int(web.numify(rec['key']))
def author_dates_match(a, b):
# check if the dates of two authors
for k in ['birth_date', 'death_date', 'date']:
if k not in a or a[k] is None or k not in b or b[k] is None:
continue
if a[k] == b[k] or a[k].startswith(b[k]) or b[k].startswith(a[k]):
continue
m1 = re_year.search(a[k])
if not m1:
return False
m2 = re_year.search(b[k])
if m2 and m1.group(1) == m2.group(1):
continue
return False
return True
def flip_name(name):
# strip end dots like this: "Smith, John." but not like this: "Smith, J."
m = re_end_dot.search(name)
if m:
name = name[:-1]
if name.find(', ') == -1:
return name
m = re_marc_name.match(name)
return m.group(2) + ' ' + m.group(1)
def remove_trailing_number_dot(date):
m = re_number_dot.search(date)
if m:
return date[:-len(m.group(1))]
else:
return date
def remove_trailing_dot(s):
if s.endswith(" Dept."):
return s
m = re_end_dot.search(s)
if m:
s = s[:-1]
return s
def fix_l_in_date(date):
if not 'l' in date:
return date
return re_l_in_date.sub(lambda m:m.group(1).replace('l', '1'), date)
re_ca = re.compile('ca\.([^ ])')
def parse_date(date):
if re_date_fl.match(date):
return {}
date = remove_trailing_number_dot(date)
date = re_ca.sub(lambda m:'ca. ' + m.group(1), date)
if date.find('-') == -1:
for r in re_date:
m = r.search(date)
if m:
return dict((k, fix_l_in_date(v)) for k, v in m.groupdict().items())
return {}
parts = date.split('-')
i = { 'birth_date': parts[0].strip() }
if len(parts) == 2:
parts[1] = parts[1].strip()
if parts[1]:
i['death_date'] = fix_l_in_date(parts[1])
if not re_ad_bc.search(i['birth_date']):
m = re_ad_bc.search(i['death_date'])
if m:
i['birth_date'] += ' ' + m.group(1)
if 'birth_date' in i and 'l' in i['birth_date']:
i['birth_date'] = fix_l_in_date(i['birth_date'])
return i
re_cent = re.compile('^[\dl][^-]+ cent\.$')
def pick_first_date(dates):
# this is to handle this case:
# 100: $aLogan, Olive (Logan), $cSikes, $dMrs., $d1839-
# see http://archive.org/download/gettheebehindmes00logaiala/gettheebehindmes00logaiala_meta.mrc
# or http://pharosdb.us.archive.org:9090/show-marc?record=gettheebehindmes00logaiala/gettheebehindmes00logaiala_meta.mrc:0:521
dates = list(dates)
if len(dates) == 1 and re_cent.match(dates[0]):
return { 'date': fix_l_in_date(dates[0]) }
for date in dates:
result = parse_date(date)
if result != {}:
return result
return { 'date': fix_l_in_date(' '.join([remove_trailing_number_dot(d) for d in dates])) }
def strip_accents(s):
return normalize('NFKD', six.text_type(s)).encode('ASCII', 'ignore')
re_drop = re.compile('[?,]')
def match_with_bad_chars(a, b):
if six.text_type(a) == six.text_type(b):
return True
a = normalize('NFKD', six.text_type(a)).lower()
b = normalize('NFKD', six.text_type(b)).lower()
if a == b:
return True
a = a.encode('ASCII', 'ignore')
b = b.encode('ASCII', 'ignore')
if a == b:
return True
def drop(s):
return re_drop.sub('', s)
return drop(a) == drop(b)
def accent_count(s):
return len([c for c in norm(s) if ord(c) > 127])
def norm(s):
return normalize('NFC', s) if isinstance(s, six.text_type) else s
def pick_best_name(names):
names = [norm(n) for n in names]
n1 = names[0]
assert all(match_with_bad_chars(n1, n2) for n2 in names[1:])
names.sort(key=lambda n:accent_count(n), reverse=True)
assert '?' not in names[0]
return names[0]
def pick_best_author(authors):
n1 = authors[0]['name']
assert all(match_with_bad_chars(n1, a['name']) for a in authors[1:])
authors.sort(key=lambda a:accent_count(a['name']), reverse=True)
assert '?' not in authors[0]['name']
return authors[0]
def tidy_isbn(input):
output = []
for i in input:
i = i.replace('-', '')
if len(i) in (10, 13):
output.append(i)
continue
if len(i) == 20 and all(c.isdigit() for c in i):
output.extend([i[:10], i[10:]])
continue
if len(i) == 21 and not i[10].isdigit():
output.extend([i[:10], i[11:]])
continue
if i.find(';') != -1:
no_semicolon = i.replace(';', '')
if len(no_semicolon) in (10, 13):
output.append(no_semicolon)
continue
split = i.split(';')
if all(len(j) in (10, 13) for j in split):
output.extend(split)
continue
output.append(i)
return output
def strip_count(counts):
foo = {}
for i, j in counts:
foo.setdefault(i.rstrip('.').lower() if isinstance(i, six.string_types) else i, []).append((i, j))
ret = {}
for k, v in foo.iteritems():
m = max(v, key=lambda x: len(x[1]))[0]
bar = []
for i, j in v:
bar.extend(j)
ret[m] = bar
return sorted(ret.iteritems(), cmp=lambda x,y: cmp(len(y[1]), len(x[1]) ))
def fmt_author(a):
if 'birth_date' in a or 'death_date' in a:
return "%s (%s-%s)" % ( a['name'], a.get('birth_date', ''), a.get('death_date', '') )
return a['name']
def get_title(e):
if e.get('title_prefix', None) is not None:
prefix = e['title_prefix']
if prefix[-1] != ' ':
prefix += ' '
title = prefix + e['title']
else:
title = e['title']
return title
def mk_norm(s):
m = re_brackets.match(s)
if m:
s = m.group(1)
norm = merge.normalize(s).strip(' ')
norm = norm.replace(' and ', ' ')
if norm.startswith('the '):
norm = norm[4:]
elif norm.startswith('a '):
norm = norm[2:]
return norm.replace(' ', '')
def error_mail(msg_from, msg_to, subject, body):
assert isinstance(msg_to, list)
msg = 'From: %s\nTo: %s\nSubject: %s\n\n%s' % (msg_from, ', '.join(msg_to), subject, body)
import smtplib
server = smtplib.SMTP('mail.archive.org')
server.sendmail(msg_from, msg_to, msg)
server.quit()
def bad_marc_alert(ia):
from pprint import pformat
msg_from = 'load_scribe@archive.org'
msg_to = 'edward@archive.org'
msg = '''\
From: %s
To: %s
Subject: bad MARC: %s
bad MARC: %s
''' % (msg_from, msg_to, ia, ia)
import smtplib
server = smtplib.SMTP('mail.archive.org')
server.sendmail(msg_from, [msg_to], msg)
server.quit()