disamb.py
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#!/usr/bin/env python
#-*- coding:utf-8 -*-
import sys
from django.db import connection, transaction
from django.core.management.base import BaseCommand, CommandError
from common.util import debug
from dictionary.util import expand_tag
class Command(BaseCommand):
args = '<nazwa pliku wejściowego>'
help = 'Dezambiguacja tagów z Morfologika'
def handle(self, input_file, **options):
parse_file(input_file)
base_tag = {}
form_categories = {
'adj': ['adj'],
'verb': ['subst:ger', 'verb', 'pact', 'ppas', 'pant', 'pcon'],
'subst': ['subst'],
'adv': ['adv'],
}
def all_tags(form, filter_base=False):
tags = []
for tag, base in zip(form['tags'], form['base']):
if not filter_base or base:
tags += expand_tag(tag)
return tags
def base_tag(tag):
pos = tag.split(':')[0]
if tag.startswith('subst:ger'):
return False
if pos in ('num', 'subst', 'adj'):
return 'nom' in tag
if pos == 'verb':
return 'inf' in tag or 'winien' in tag
if pos in ('refl', 'pact', 'ppas'):
return False
return True
# forms: lista {form: forma, tags: lista możliwych tagów)?
def disamb_lexeme(forms):
base_form_tags = (tag for tag, base
in zip(forms[0]['tags'], forms[0]['base'])
if base and base_tag(tag))
possible_pos = set(tag.split(':')[0] for tag in base_form_tags)
entry = forms[0]['form']
if forms[0]['tags'][0] == '-':
print >>sys.stderr, (u'%s: nierozpoznana forma podstawowa' %
entry).encode('utf-8')
return None, None
if len(possible_pos) == 1:
pos = list(possible_pos)[0]
else:
print >>sys.stderr, (u'%s: niejednoznaczna część mowy' %
entry).encode('utf-8')
return None, None
cats = form_categories.get(pos, [pos])
new_forms = []
other_lexemes = []
for form in forms:
new_tags = []
for tag, base in zip(form['tags'], form['base']):
for cat in cats:
if tag.startswith(cat) and base:
new_tags.append(tag)
break
else: # nie pasowało
if pos == 'verb':
tags = tag.split('+')
fixed = None
if tags[0].startswith('subst'):
fixed = ['subst:ger' + tag[len('subst'):] for tag in tags]
elif tags[0].startswith('adj'):
start = None
if any(form['form'].endswith(end) for end in [u'cy', u'ca', u'ce',
u'cą', u'cego', u'cej', u'cemu', u'cym', u'cych', u'cymi']):
start = 'pact'
else:
start = 'ppas'
if start:
fixed = [start + tag[len('adj'):] for tag in tags]
if fixed:
new_tags.append('+'.join(fixed))
if new_tags:
form['tags'] = new_tags
new_forms.append(form)
else:
if pos == 'adj' and 'adv' in (tag.split(':')[0] for tag in form['tags']):
form['tags'] = [tag for tag in form['tags'] if tag.startswith('adv')]
other_lexemes.append([form])
nie_prefix = ''
while forms[0]['form'].startswith(nie_prefix):
nie_prefix += 'nie'
if not form['form'].startswith(nie_prefix):
print >>sys.stderr, (u'advadj: %s %s' % (form['form'], forms[0]['form'])).encode('utf-8')
else:
form['tags'] = [pos + ':irreg']
new_forms.append(form)
#print >>sys.stderr, (u'odrzucona forma: %s %s [%s]' %
# (form['form'], ', '.join(form['tags']), pos)).encode('utf-8')
# if len(new_forms[0]['tags']) == 1:
# if pos not in base_tag:
# base_tag[pos] = set()
# base_tag[pos].add(new_forms[0]['tags'][0])
if pos == 'subst':
# ujednoznacznić rodzaj... niezguła, sezamek
genders = set(tag[-1][0] for tag in all_tags(new_forms[0]))
if len(genders) == 1:
gender = list(genders)[0]
else:
genders = set(tag[-1][0] for tag in all_tags(new_forms[0], filter_base=True))
if len(genders) == 1:
gender = list(genders)[0]
else:
good_genders = []
for gender in genders:
for form in new_forms:
for tag in all_tags(form):
if tag[-1][0] in (gender, 'i'):
break # jest
else: # nie ma
break
else: # ok
good_genders.append(gender)
if len(good_genders) != 1:
print >> sys.stderr, (u'%s: nie da się ujednoznacznić rodzaju' %
entry).encode('utf-8')
return None, None
gender = good_genders[0]
# znamy rodzaj, przesiewamy
for form in new_forms:
good_tags = []
for tag in all_tags(form):
if tag[-1][0] in (gender, 'i') or (tag[-1] == 'depr' and gender == 'm'):
good_tags.append(':'.join(tag))
if good_tags:
form['tags'] = good_tags
else:
form['tags'] = [pos + ':irreg']
return new_forms, other_lexemes
def print_forms(forms):
for form in forms:
for tag in form['tags']:
print ('%s\t%s' % (form['form'], tag)).encode('utf-8')
print
def parse_file(path):
with open(path) as file:
forms = []
for line in file:
line = line.decode('utf-8').rstrip('\n')
if line.startswith('Processed '):
break
if line == '':
disambiguated, other_lexemes = disamb_lexeme(forms)
if disambiguated:
print_forms(disambiguated)
for l in other_lexemes:
print_forms(l)
forms = []
else:
form, base, tag = line.split('\t')
if not forms:
entry = form
if not forms or form != forms[-1]['form']:
forms.append({'form': form, 'base': [], 'tags': []})
forms[-1]['tags'].append(tag)
forms[-1]['base'].append(
base == entry or tag == 'adv:comp'
or (tag.startswith('subst:pl') and 'nom' in tag)) # brzydko...
# for pos, tags in base_tag.iteritems():
# print ('base %s: %s' % (pos, ', '.join(tags))).encode('utf-8')
if __name__ == '__main__':
import sys
parse_file(sys.argv[1])