def grammar(self):
interesting_group = textparser.Sequence(
'interesting_group', '{',
ZeroOrMore(Sequence('WORD', '=', 'WORD', ';')), '}', ';')
return Sequence(AnyUntil('interesting_group'),
interesting_group, ZeroOrMore(Any()))
def test_grammar_any(self):
grammar = Grammar(Any())
datas = [
(
[('A', r'a')],
'a'
),
(
[('B', r'b')],
'b'
)
]
self.parse_and_assert_tree(grammar, datas)
def grammar(self):
version = Sequence('VERSION', 'STRING')
ns = Sequence('NS_', ':', AnyUntil(Sequence(Any(), ':')))
bs = Sequence('BS_', ':')
nodes = Sequence('BU_', ':', ZeroOrMore('WORD'))
signal = Sequence('SG_',
choice(Sequence('WORD', 'WORD'), Sequence('WORD')),
':', 'NUMBER', '|', 'NUMBER', '@', 'NUMBER', '+/-',
'(', 'NUMBER', ',', 'NUMBER', ')', '[', 'NUMBER',
'|', 'NUMBER', ']', 'STRING', DelimitedList('WORD'))
message = Sequence('BO_', 'NUMBER', 'WORD', ':', 'NUMBER', 'WORD',
ZeroOrMore(signal))
environment_variable = Sequence('EV_', 'WORD', ':', 'NUMBER', '[',
'NUMBER', '|', 'NUMBER', ']', 'STRING',
'NUMBER', 'NUMBER', 'WORD', 'WORD',
';')
comment = Sequence(
'CM_',
choice(Sequence('SG_', 'NUMBER', 'WORD', 'STRING'),
Sequence('BO_', 'NUMBER', 'STRING'),
Sequence('EV_', 'WORD', 'STRING'),
Sequence('BU_', 'WORD', 'STRING'), 'STRING'), ';')
attribute_definition = Sequence(
'BA_DEF_', Optional(choice('SG_', 'BO_', 'EV_',
'BU_')), 'STRING', 'WORD',
Optional(choice(DelimitedList('STRING'), ZeroOrMore('NUMBER'))),
';')
attribute_definition_default = Sequence('BA_DEF_DEF_', 'STRING',
choice('NUMBER', 'STRING'),
';')
attribute = Sequence(
'BA_', 'STRING',
ZeroOrMore(
choice(Sequence('BO_', 'NUMBER'),
Sequence('SG_', 'NUMBER', 'WORD'),
Sequence('BU_', 'WORD'), Sequence('EV_', 'WORD'))),
choice('NUMBER', 'STRING'), ';')
attribute_definition_rel = Sequence(
'BA_DEF_REL_', Optional('BU_SG_REL_'), 'STRING', 'WORD',
Optional(choice(DelimitedList('STRING'), OneOrMore('NUMBER'))),
';')
attribute_definition_default_rel = Sequence('BA_DEF_DEF_REL_',
'STRING',
choice('NUMBER',
'STRING'), ';')
attribute_rel = Sequence('BA_REL_', 'STRING', 'BU_SG_REL_', 'WORD',
'SG_', 'NUMBER', 'WORD',
choice('NUMBER', 'STRING'), ';')
choice_ = Sequence('VAL_', Optional('NUMBER'), 'WORD',
ZeroOrMore(Sequence('NUMBER', 'STRING')), ';')
value_table = Sequence('VAL_TABLE_', 'WORD',
ZeroOrMore(Sequence('NUMBER', 'STRING')), ';')
signal_type = Sequence('SIG_VALTYPE_', 'NUMBER', 'WORD', ':', 'NUMBER',
';')
signal_multiplexer_values = Sequence(
'SG_MUL_VAL_', 'NUMBER', 'WORD', 'WORD',
DelimitedList(Sequence('NUMBER', 'NUMBER')), ';')
message_add_sender = Sequence('BO_TX_BU_', 'NUMBER', ':',
DelimitedList('WORD'), ';')
signal_group = Sequence('SIG_GROUP_', 'NUMBER', 'WORD', 'NUMBER', ':',
Optional(OneOrMore('WORD')), ';')
return OneOrMoreDict(
choice(message, comment, attribute_definition, value_table,
choice_, attribute, attribute_rel, attribute_definition_rel,
attribute_definition_default,
attribute_definition_default_rel, signal_group, signal_type,
signal_multiplexer_values, message_add_sender,
environment_variable, nodes, ns, bs, version))
def grammar(self):
word = choice('WORD', *list(self.KEYWORDS))
version = Sequence('FormatVersion', '=', 'NUMBER', 'COMMENT')
title = Sequence('Title', '=', 'STRING')
unique_variables = Sequence('UniqueVariables', '=', word)
float_decimal_places = Sequence('FloatDecimalPlaces', '=', 'NUMBER')
bit_rate_switch = Sequence('BRS', '=', word)
enum_value = Sequence('NUMBER', '=', 'STRING')
enum = Sequence('Enum', '=', word, '(',
Optional(DelimitedList(enum_value)), ')',
Optional('COMMENT'))
sig_unit = '/u:'
sig_factor = Sequence('/f:', 'NUMBER')
sig_offset = Sequence('/o:', 'NUMBER')
sig_min = Sequence('/min:', 'NUMBER')
sig_max = Sequence('/max:', 'NUMBER')
sig_default = Sequence('/d:', choice('NUMBER', 'WORD'))
sig_long_name = Sequence('/ln:', 'STRING')
sig_enum = Sequence('/e:', word)
sig_places = Sequence('/p:', 'NUMBER')
signal = Sequence(
'Sig', '=', Any(), word, Optional('NUMBER'),
Optional(choice('-h', '-b')), Optional('-m'),
ZeroOrMore(
choice(sig_unit, sig_factor, sig_offset, sig_min, sig_max,
sig_default, sig_long_name, sig_enum, sig_places)),
Optional('COMMENT'))
variable = Sequence(
'Var', '=', Any(), word, 'NUMBER', ',', 'NUMBER',
ZeroOrMore(choice('-v', '-m', '-s')),
ZeroOrMore(
choice(sig_unit, sig_factor, sig_offset, sig_min, sig_max,
sig_default, sig_long_name, sig_enum, sig_places)),
Optional('COMMENT'))
symbol = Sequence(
'[', Any(), ']',
ZeroOrMoreDict(
choice(
Sequence('ID', '=', 'NUMBER', word,
Optional(Sequence('NUMBER', word)),
Optional('COMMENT')),
Sequence('Len', '=', 'NUMBER'),
Sequence('Mux', '=', Any(), 'NUMBER', ',', 'NUMBER',
'NUMBER', Optional('-t')),
Sequence('CycleTime', '=', 'NUMBER'),
Sequence('Timeout', '=', 'NUMBER'),
Sequence('MinInterval', '=', 'NUMBER'),
Sequence('Color', '=', 'NUMBER', 'WORD'), variable,
Sequence('Sig', '=', Any(), 'NUMBER'))))
enums = Sequence('{ENUMS}', ZeroOrMore(choice(enum, 'COMMENT')))
signals = Sequence('{SIGNALS}', ZeroOrMore(choice(signal, 'COMMENT')))
send = Sequence('{SEND}', ZeroOrMore(choice(symbol, 'COMMENT')))
receive = Sequence('{RECEIVE}', ZeroOrMore(choice(symbol, 'COMMENT')))
sendreceive = Sequence('{SENDRECEIVE}',
ZeroOrMore(choice(symbol, 'COMMENT')))
section = choice(enums, signals, send, receive, sendreceive)
grammar = Sequence(
Optional('COMMENT'), version,
ZeroOrMore(
choice(unique_variables, float_decimal_places, title,
bit_rate_switch)), ZeroOrMore(section))
return grammar