def maybe_oop_invoke(form):
head = rt.first(form)
if isinstance(rt.first(form), symbol.Symbol) and rt.name(head).startswith(".-"):
postfix = rt.next(form)
affirm(rt.count(postfix) == 1, u" Attribute lookups must only have one argument")
subject = rt.first(postfix)
kw = keyword(rt.name(head)[2:])
fn = symbol.symbol(u"pixie.stdlib/-get-attr")
return create_from_list([fn, subject, kw])
elif isinstance(rt.first(form), symbol.Symbol) and rt.name(head).startswith("."):
subject = rt.first(rt.next(form))
postfix = rt.next(rt.next(form))
form = cons(keyword(rt.name(head)[1:]), postfix)
form = cons(subject, form)
form = cons(symbol.symbol(u"pixie.stdlib/-call-method"), form)
return form
else:
return form
def invoke(self, rdr, ch):
lst = []
while True:
eat_whitespace(rdr)
ch = rdr.read()
if ch == u")":
acc = nil
for x in range(len(lst) - 1, -1, -1):
acc = cons(lst[x], acc)
return acc
rdr.unread(ch)
lst.append(read(rdr, True))
def invoke(self, rdr, ch):
lst = []
while True:
try:
eat_whitespace(rdr)
except EOFError:
throw_syntax_error_with_data(rdr, u"Unmatched list open '('")
ch = rdr.read()
if ch == u")":
if len(lst) == 0:
return EmptyList()
acc = nil
for x in range(len(lst) - 1, -1, -1):
acc = cons(lst[x], acc)
return acc
rdr.unread()
itm = read_inner(rdr, True, always_return_form=False)
if itm != rdr:
lst.append(itm)
def invoke(self, rdr, ch):
itm = read(rdr, True)
return cons(symbol(u"quote"), cons(itm))
def invoke(self, rdr, ch):
itm = read_inner(rdr, True)
return cons(symbol(u"quote"), cons(itm))