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import re
from .Exceptions import FieldNotFoundException, DDTableInvalidException
class PBNField(object):
def __init__(self, key=None, value=None, raw_data=None):
self.key = key
self.value = value
self.raw_field = '[%s "%s"]' % (self.key, str(self.value)) \
if self.key is not None else raw_data
class PBNBoard(object):
line_pattern = re.compile(r'\[(.*) "(.*)"\]')
ability_pattern = re.compile(r'\b([NESW]):([0-9A-D]{5})\b')
optimum_result_table_pattern = re.compile(
r'^([NESW])\s+([CDHSN])T?\s+(\d+)$')
DENOMINATIONS = [ 'C', 'D', 'H', 'S', 'N' ]
PLAYERS = [ 'N', 'E', 'S', 'W' ]
def __init__(self, lines, line_no=None):
self.line_number = line_no
self._has_optimum_result_table = None
self._has_ability = None
self.fields = []
for line in lines:
field = PBNField(raw_data=line)
line_parse = self.line_pattern.match(line)
if line_parse:
field.key = line_parse.group(1)
field.value = line_parse.group(2)
self.fields.append(field)
def has_field(self, key):
for field in self.fields:
if key == field.key:
return True
return False
def get_field(self, key, default=None):
for field in self.fields:
if key == field.key:
return field.value
if default is not None:
return default
raise FieldNotFoundException(key + ' field not found')
def delete_field(self, key):
to_remove = []
for field in self.fields:
if key == field.key:
to_remove.append(field)
for remove in to_remove:
self.fields.remove(remove)
def get_event(self):
return self.get_field('Event')
def write_event(self, name):
for i in range(0, len(self.fields)):
if 'Board' == self.fields[i].key:
self.fields.insert(i, PBNField(key='Event', value=name))
break
def get_layout(self):
return self.get_field('Deal')
def get_number(self):
return self.get_field('Board')
def get_vulnerable(self):
return self.get_field('Vulnerable')
def get_dealer(self):
return self.get_field('Dealer')
def validate_ability(self, ability):
matches = self.ability_pattern.findall(ability)
if not len(matches):
self._has_ability = False
raise DDTableInvalidException('Invalid Ability line: ' + ability)
players = []
for match in matches:
if match[0] in players:
self._has_ability = False
raise DDTableInvalidException(
'Duplicate entry in Ability: ' + match[0])
else:
players.append(match[1])
self._has_ability = False
return matches
def get_ability(self):
return self.get_field('Ability')
def delete_ability(self):
self.delete_field('Ability')
def write_ability(self, dd_table):
sb = ''
for i in range(0, 4):
sb += PBNBoard.PLAYERS[i]
sb += ':'
sb += ''.join(['%X' % (j) for j in dd_table[i]])[::-1]
sb += ' '
self.fields.append(PBNField(key='Ability', value=sb.strip()))
def get_minimax(self):
return self.get_field('Minimax')
def delete_minimax(self):
self.delete_field('Minimax')
def write_minimax(self, contract):
minimax = '7NS0' if contract.score == 0 \
else '%d%s%s%s%d' % (
contract.level,
contract.denomination,
'D' if contract.doubled else '',
contract.declarer,
contract.score)
self.fields.append(PBNField(key='Minimax', value=minimax))
def get_optimum_score(self):
return self.get_field('OptimumScore')
def delete_optimum_score(self):
self.delete_field('OptimumScore')
def write_optimum_score(self, contract):
self.fields.append(
PBNField(key='OptimumScore',
value='NS %d' % (contract.score)))
def get_optimum_result(self):
return self.get_field('OptimumResult')
def validate_optimum_result_table(self, table):
matches = []
duplicates = []
for line in table:
match = self.optimum_result_table_pattern.match(line)
if not match:
self._has_optimum_result_table = False
raise DDTableInvalidException(
'Invalid OptimumResultTable line: ' + line)
position = match.group(1) + ' - ' + match.group(2)
if position in duplicates:
self._has_optimum_result_table = False
raise DDTableInvalidException(
'Duplicate OptimumResultTable line: ' + line)
else:
duplicates.append(position)
matches.append(match)
self._has_optimum_result_table = True
return matches
def get_optimum_result_table(self):
try:
return self.get_extended_raw_field('OptimumResultTable')
except FieldNotFoundException:
self._has_optimum_result_table = False
raise
def get_auction(self):
return self.get_extended_raw_field('Auction', with_header=True)
def get_play_data(self):
if self.has_field('Play'):
return self.get_extended_raw_field('Play', with_header=False)
return None
def get_extended_raw_field(self, field_name, with_header=False):
field_found = False
result = []
for field in self.fields:
if field_name == field.key:
field_found = True
if with_header:
result.append(field.value)
else:
if field_found:
if field.key is None:
result.append(field.raw_field)
else:
break
if not field_found:
raise FieldNotFoundException('%s field not found' % (field_name))
return result
def delete_optimum_result_table(self):
field_found = False
to_remove = []
for field in self.fields:
if 'OptimumResultTable' == field.key:
field_found = True
to_remove.append(field)
else:
if field_found:
if field.key is None:
to_remove.append(field)
else:
break
for remove in to_remove:
self.fields.remove(remove)
def write_optimum_result_table(self, dd_table):
self.fields.append(PBNField(
key='OptimumResultTable',
value=r'Declarer;Denomination\2R;Result\2R'))
for i in range(0, 4):
for j in range(0, 5):
self.fields.append(PBNField(
raw_data='%s %s%s %d' % (
PBNBoard.PLAYERS[i],
PBNBoard.DENOMINATIONS[j],
'T' if PBNBoard.DENOMINATIONS[j] == 'N' else '',
dd_table[i][j])))
def save_par_contract(self, contract, jfr_only=False):
if not jfr_only:
self.delete_optimum_score()
self.write_optimum_score(contract)
self.delete_minimax()
self.write_minimax(contract)
def save_dd_table(self, dd_table, jfr_only=False):
if not jfr_only:
if self._has_optimum_result_table is None:
try:
optimum_result_table = self.validate_optimum_result_table(
self.get_optimum_result_table())
self._has_optimum_result_table = True
except FieldNotFoundException:
self._has_optimum_result_table = False
if not self._has_optimum_result_table:
self.delete_optimum_result_table()
self.write_optimum_result_table(dd_table)
if self._has_ability is None:
try:
ability = self.validate_ability(
self.get_ability())
self._has_ability = True
except FieldNotFoundException:
self._has_ability = False
if not self._has_ability:
self.delete_ability()
self.write_ability(dd_table)
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