class Arguments(List):
grammar = optional(
csl([
ArgumentWithoutQuotes, ArgumentWithSingleQuotes,
ArgumentWithDoubleQuotes
],
separator=','))
class Arguments(List):
grammar = optional(csl(
[
ArgumentWithoutQuotes,
ArgumentWithQuotes,
],
separator=[',', '']
))
class KeySymList(peg.List):
""" A list of key symbols in brackets """
grammar = "[", peg.optional(peg.csl(KeySym)), "]"
@staticmethod
def from_strings(strings: list):
levels = KeySymList()
for s in strings:
k = KeySym()
k.name = s
levels.append(k)
return levels
class Enumerators(_List, Node):
grammar = pypeg2.csl(Enumerator), pypeg2.optional(',')
def __init__(self, items):
super().__init__([i.value for i in items])
def __str__(self):
s = '<enumerators>'
for e in self:
s += str(e)
s += '</enumerators>'
return s
class Modules(List):
grammar = optional(csl(re.compile(r"[\w_*]+")))
def action(name_aliases: list, arguments: list):
return name_aliases, "(", peg.csl(arguments, separator=","), ")"
class Parameters(List):
grammar = optional(csl(Parameter))
class Arguments(List):
grammar = optional(csl([Argument], separator=','))
class Block(List):
"""A curly brace delimited block."""
grammar = '{', csl([Call, Field], separator=','), '}'
class Arguments(List):
"""Arguments to a call."""
grammar = csl(number, separator=',')
class ComposeTuple(pypeg2.List):
grammar = pypeg2.csl(pypeg2.word)
def create_tree(thing, parent=None, object_names=False):
"""Create an XML etree from a thing.
Arguments:
thing thing to interpret
parent etree.Element to put subtree into
default: create a new Element tree
object_names experimental feature: if True tag names are object
names instead of types
Returns:
etree.Element instance created
"""
try:
grammar = type(thing).grammar
except AttributeError:
if isinstance(thing, list):
grammar = pypeg2.csl(pypeg2.name())
else:
grammar = pypeg2.word
name = type(thing).__name__
if object_names:
try:
name = str(thing.name)
name = name.replace(" ", "_")
except AttributeError:
pass
if parent is None:
me = etree.Element(name)
else:
me = etree.SubElement(parent, name)
for e in pypeg2.attributes(grammar):
if object_names and e.name == "name":
if name != type(thing).__name__:
continue
key, value = e.name, getattr(thing, e.name, None)
if value is not None:
if pypeg2._issubclass(e.thing, (str, int, pypeg2.Literal)) \
or type(e.thing) == pypeg2._RegEx:
me.set(key, str(value))
else:
create_tree(value, me, object_names)
if isinstance(thing, list):
things = thing
elif isinstance(thing, pypeg2.Namespace):
things = thing.values()
else:
things = []
last = None
for t in things:
if type(t) == str:
if last is not None:
last.tail = str(t)
else:
me.text = str(t)
else:
last = create_tree(t, me, object_names)
if isinstance(thing, str):
me.text = str(thing)
return me
single_quote_string_literal, double_quote_string_literal, float_literal,
int_literal, bool_literal, token
]), ':', attr('value', ternary_expression_or_less))
AssociativeListExpression.grammar = ('{', endl,
attr(
'content',
pypeg2.indent(
optional(
AttributeDeclaration,
maybe_some(
',', endl,
AttributeDeclaration)),
endl)), '}')
OrderedListExpression.grammar = ('[', attr('content'),
pypeg2.indent(
pypeg2.csl(ternary_expression_or_less)),
']')
BracketedExpression.grammar = '[', attr('content',
ternary_expression_or_less), ']'
InvocationExpression.grammar = '(', attr(
'content', optional(pypeg2.csl((blank, ternary_expression_or_less)))), ')'
ParensExpression.grammar = '(', attr('content',
ternary_expression_or_less), ')'
AssignmentExpression.grammar = (
attr('operand1', [PostfixExpression, token]), blank,
attr('operator', re.compile('[*/+-]?=')), blank,
attr('operand2', [AssignmentExpression, *ternary_expression_or_less]))
VariableDeclaration.grammar = (attr(
'qualifiers', maybe_some((re.compile('const|var|let'), blank))),
print()
print(' private:')
print(' const std::shared_ptr<arpc::Channel> channel_;')
print('};')
print()
print(
'static std::unique_ptr<Stub> NewStub(const std::shared_ptr<arpc::Channel>& channel) {'
)
print(' return std::make_unique<Stub>(channel);')
print('}')
print()
print('};')
ProtoFile = ('syntax', '=', ['"proto3"', '\'proto3\''], ';', 'package',
pypeg2.csl(pypeg2.word, separator='.'), ';',
pypeg2.ignore((pypeg2.maybe_some(['import', 'option'],
pypeg2.restline), )),
pypeg2.maybe_some([
EnumDeclaration,
MessageDeclaration,
ServiceDeclaration,
]))
input_str = sys.stdin.read()
input_sha256 = hashlib.sha256(input_str.encode('UTF-8')).hexdigest()
declarations = pypeg2.parse(input_str, ProtoFile, comment=pypeg2.comment_cpp)
package = []
while isinstance(declarations[0], str):
package.append(declarations[0])
declarations = declarations[1:]
def create_tree(thing, parent=None, object_names=False):
"""Create an XML etree from a thing.
Arguments:
thing thing to interpret
parent etree.Element to put subtree into
default: create a new Element tree
object_names experimental feature: if True tag names are object
names instead of types
Returns:
etree.Element instance created
"""
try:
grammar = type(thing).grammar
except AttributeError:
if isinstance(thing, list):
grammar = pypeg2.csl(pypeg2.name())
else:
grammar = pypeg2.word
name = type(thing).__name__
if object_names:
try:
name = str(thing.name)
name = name.replace(" ", "_")
except AttributeError:
pass
if parent is None:
me = etree.Element(name)
else:
me = etree.SubElement(parent, name)
for e in pypeg2.attributes(grammar):
if object_names and e.name == "name":
if name != type(thing).__name__:
continue
key, value = e.name, getattr(thing, e.name, None)
if value is not None:
if pypeg2._issubclass(e.thing, (str, int, pypeg2.Literal)) \
or type(e.thing) == pypeg2._RegEx:
me.set(key, str(value))
else:
create_tree(value, me, object_names)
if isinstance(thing, list):
things = thing
elif isinstance(thing, pypeg2.Namespace):
things = thing.values()
else:
things = []
last = None
for t in things:
if type(t) == str:
if last is not None:
last.tail = str(t)
else:
me.text = str(t)
else:
last = create_tree(t, me, object_names)
if isinstance(thing, str):
me.text = str(thing)
return me
def runTest(self):
L1 = pypeg2.csl("thing")
L2 = pypeg2.csl("hello", "world")
self.assertEqual(L1, ("thing", -1, (",", pypeg2.blank, "thing")))
self.assertEqual(L2, ("hello", "world", -1, (",", pypeg2.blank, "hello", "world")))
class Parms(pypeg2.Namespace):
grammar = (pypeg2.csl(Parm), pypeg2.flag("fullstop", "."),
pypeg2.flag("semicolon", ";"))
According to ParentField grammar:
self[0] returns IncludedField instance,
self[1] returns Block instance
"""
@property
def name(self):
return self[0].name
@property
def block(self):
return self[1]
# A block which contains included fields(No excluded fields here)
include_block = csl(
[ParentField, IncludedField, optional(AllFields)],
separator=','
)
# A block which contains excluded fields(No included fields here)
exclude_block = csl(
[ParentField, ExcludedField, optional(AllFields)],
separator=','
)
class Block(List):
# A block with either `include_block` or `exclude_block`
# features but not both
grammar = '{', optional(include_block, exclude_block), '}'
class Parameters(pypeg2.Namespace):
grammar = pypeg2.optional(pypeg2.csl(Parameter))
class ModifiersArgument(peg.List):
""" modifiers= or mods= argument in action command. Takes a list of '+'-separated modifiers """
grammar = ["modifiers", "mods"], "=", peg.csl(peg.word, separator="+")
class CallList(List):
grammar = csl(Field, separator='.')
class Parameters(Namespace):
grammar = optional(csl(Parameter))
class Events(Namespace):
grammar = optional(csl(Event))
body = None
class List(MExpression):
head = MSymbol("List")
grammar = (
Literal("{"), optional(attr("body", csl(MExpression))), Literal("}")
)
# Since MExpression is recursive, we need to define the class,
# then the grammar. Moreover, since it depends on List and other
# such things, we need to put it last.
MExpression.grammar = [
(
attr("head", MSymbol), Literal("["), optional(attr("body", csl(MExpression))), Literal("]")
),
attr("head", MSymbol),
List,
atom
]
## TESTING ###########################################################
if __name__ == "__main__":
print parse("ab`c", MExpression)
print parse('12', MExpression)
print parse('"a"', MExpression)
print parse("List", MExpression)
print parse("List[]", MExpression)
class BlockBody(List):
grammar = optional(
csl([ParentField, IncludedField, ExcludedField, AllFields],
separator=','))
class List(MExpression):
head = MSymbol("List")
grammar = (
Literal("{"), optional(attr("body", csl(MExpression))), Literal("}")
)
class Modules(List):
grammar = optional(csl(Module))
class Parameters(peg.Namespace):
grammar = peg.optional(peg.csl(Parameter))
ternary_expression_or_less = [TernaryExpression, *binary_expression_or_less]
TernaryExpression.grammar = (attr('operand1',
binary_expression_or_less), '?', blank,
attr('operand2',
ternary_expression_or_less), blank, ':',
blank, attr('operand3',
ternary_expression_or_less))
BracketedExpression.grammar = '[', attr('content',
ternary_expression_or_less), ']'
ParensExpression.grammar = '(', attr('content',
ternary_expression_or_less), ')'
InvocationExpression.grammar = (attr('reference', token), '(',
attr('arguments',
pypeg2.csl(ternary_expression_or_less)),
')')
AttributeExpression.grammar = (attr(
'reference',
[InvocationExpression, token, ParensExpression
]), attr('attributes', pypeg2.some([BracketedExpression, ('.', token)])))
AssignmentExpression.grammar = (
attr('operand1', [AttributeExpression, token]), blank,
attr('operator', re.compile('[*/+-]?=')), blank,
attr('operand2', [AssignmentExpression, *ternary_expression_or_less]))
VariableDeclaration.grammar = (
attr(
'qualifiers',
maybe_some(
class Block(List):
grammar = '{', optional(csl([Call, Field], separator=',')), '}'
