59 lines
2.6 KiB
Python
59 lines
2.6 KiB
Python
import random
|
|
import six
|
|
|
|
from geodata.addresses.config import address_config
|
|
from geodata.addresses.numbering import NumberedComponent
|
|
from geodata.encoding import safe_decode
|
|
|
|
from geodata.configs.utils import nested_get
|
|
from geodata.addresses.numbering import NumberedComponent, sample_alphabet, latin_alphabet
|
|
from geodata.encoding import safe_decode
|
|
from geodata.math.sampling import weighted_choice, zipfian_distribution, cdf
|
|
|
|
|
|
class Block(NumberedComponent):
|
|
max_blocks = 10
|
|
|
|
block_range = range(1, max_blocks + 1)
|
|
block_range_probs = zipfian_distribution(len(block_range), 2.0)
|
|
block_range_cdf = cdf(block_range_probs)
|
|
|
|
@classmethod
|
|
def random(cls, language, country=None):
|
|
num_type, num_type_props = cls.choose_alphanumeric_type('blocks.alphanumeric', language, country=country)
|
|
if num_type is None:
|
|
return None
|
|
|
|
if num_type == cls.NUMERIC:
|
|
number = weighted_choice(cls.block_range, cls.block_range_cdf)
|
|
return safe_decode(number)
|
|
else:
|
|
alphabet = address_config.get_property('alphabet', language, country=country, default=latin_alphabet)
|
|
alphabet_probability = address_config.get_property('alphabet_probability', language, country=country, default=None)
|
|
if alphabet_probability is not None and random.random() >= alphabet_probability:
|
|
alphabet = latin_alphabet
|
|
letter = sample_alphabet(alphabet, 2.0)
|
|
if num_type == cls.ALPHA:
|
|
return safe_decode(letter)
|
|
else:
|
|
number = weighted_choice(cls.block_range, cls.block_range_cdf)
|
|
|
|
whitespace_probability = float(num_type_props.get('whitespace_probability', 0.0))
|
|
whitespace_phrase = six.u(' ') if whitespace_probability and random.random() < whitespace_probability else six.u('')
|
|
|
|
if num_type == cls.ALPHA_PLUS_NUMERIC:
|
|
return six.u('{}{}{}').format(letter, whitespace_phrase, number)
|
|
elif num_type == cls.NUMERIC_PLUS_ALPHA:
|
|
return six.u('{}{}{}').format(number, whitespace_phrase, letter)
|
|
|
|
@classmethod
|
|
def phrase(cls, block, language, country=None):
|
|
if block is None:
|
|
return None
|
|
|
|
phrase_prob = address_config.get_property('blocks.alphanumeric_phrase_probability', language, country=country, default=0.0)
|
|
if random.random() < phrase_prob:
|
|
return cls.numeric_phrase('blocks.alphanumeric', block, language,
|
|
dictionaries=['qualifiers'], country=country)
|
|
else:
|
|
return None |