def extract_pizza_features(parse_tree):
non_tops = set(search(parse_tree, 'negation_phrase topping_item'))
all_tops = set(search(parse_tree, 'topping_item'))
yes_tops = all_tops.difference(non_tops)
crust_size = extract(parse_tree, 'crust_size') or 'medium'
crust_type = extract(parse_tree, 'crust_type') or 'regular'
crust = '{} {}'.format(crust_size, crust_type)
num_pizzas = text_to_int(extract(parse_tree, 'number') or 'one')
toppings = []
for t in yes_tops:
item = extract(t, 'topping_item')
amount = 'normal'
parent_ = parent(parse_tree, t)
if parent and parent_[0] == 'ingredient':
amount = extract(parent_, 'topping_amount') or amount
toppings.append((item, amount))
for t in non_tops:
item = extract(t, 'topping_item')
amount = 'none'
toppings.append((item, amount))
return {
'crust': crust,
'quantity': num_pizzas,
'options': toppings,
}
def extract_pizza_features(parse_tree):
non_tops = set(search(parse_tree, 'negation_phrase topping_item'))
all_tops = set(search(parse_tree, 'topping_item'))
yes_tops = all_tops.difference(non_tops)
crust_size = extract(parse_tree, 'crust_size') or 'medium'
crust_type = extract(parse_tree, 'crust_type') or 'regular'
crust = '{} {}'.format(crust_size, crust_type)
num_pizzas = text_to_int(extract(parse_tree, 'number') or 'one')
toppings = []
for t in yes_tops:
item = extract(t, 'topping_item')
amount = 'normal'
parent_ = parent(parse_tree, t)
if parent and parent_[0] == 'ingredient':
amount = extract(parent_, 'topping_amount') or amount
toppings.append((item, amount))
for t in non_tops:
item = extract(t, 'topping_item')
amount = 'none'
toppings.append((item, amount))
return {
'crust': crust,
'quantity': num_pizzas,
'options': toppings,
}
#!/usr/bin/env python
# coding: utf-8
#
# Copyright (c) 2015, PAL Team.
# All rights reserved. See LICENSE for details.
import pprint
from pal.grammars.grammars import make_chomsky_normal_form
from pal.grammars.grammars import parse_grammar_from_file
from pal.grammars.parser import parse, generate_grammar_features, extract, search, parent
string = 'how much for two medium thin pizza with extra pineapple but no cheese sauce or mushrooms'
grammar = parse_grammar_from_file('pal/grammars/services/dominos_grammar.txt')
make_chomsky_normal_form(grammar)
grammar_features = generate_grammar_features(grammar)
parse_tree = parse(string, grammar_features)
pprint.pprint(parse_tree)
print 'NOT'
for x in search(parse_tree, 'negation_phrase topping_item'):
print extract(x, x[0]) # flatten
print parent(parse_tree, x)[0]
print '\nWITH'
for x in set(search(parse_tree, 'topping_item')).difference(
set(search(parse_tree, 'negation_phrase topping_item'))):
print extract(x, x[0]) # flatten
print parent(parse_tree, x)[0]
#!/usr/bin/env python
# coding: utf-8
#
# Copyright (c) 2015, PAL Team.
# All rights reserved. See LICENSE for details.
import pprint
from pal.grammars.grammars import make_chomsky_normal_form
from pal.grammars.grammars import parse_grammar_from_file
from pal.grammars.parser import parse, generate_grammar_features, extract, search, parent
string = 'how much for two medium thin pizza with extra pineapple but no cheese sauce or mushrooms'
grammar = parse_grammar_from_file('pal/grammars/services/dominos_grammar.txt')
make_chomsky_normal_form(grammar)
grammar_features = generate_grammar_features(grammar)
parse_tree = parse(string, grammar_features)
pprint.pprint(parse_tree)
print 'NOT'
for x in search(parse_tree, 'negation_phrase topping_item'):
print extract(x, x[0]) # flatten
print parent(parse_tree, x)[0]
print '\nWITH'
for x in set(search(parse_tree, 'topping_item')).difference(set(search(parse_tree, 'negation_phrase topping_item'))):
print extract(x, x[0]) # flatten
print parent(parse_tree, x)[0]