def _repr_(self):
from printing import repr_operator
approximation = "%s" % self._approximation
if self.is_exact():
return approximation
else:
precision = "%s" % self._precision
return repr_operator(" + ", [approximation, precision])
def repr(self):
from printing import repr_parenthesis, repr_operator, repr_exponant, repr_index, repr_function
name = self.name
if self.__dict__.has_key("args"):
args = []
parenthesis = []
for arg in self.args:
level = 0
if hasattr(arg, "parenthesis_level"):
level = arg.parenthesis_level()
elif hasattr(arg, "is_atomic") and self._parenthesis_level < Infinity:
if arg.is_atomic():
level = 3
elif isinstance(arg, Integer):
level = 3
args.append("%s" % arg)
parenthesis.append(level)
s = ""
if name == "add":
s = repr_operator(" + ", args)
elif name == "sub" and len(args) == 2:
if parenthesis[1] < 1:
args[1] = repr_parenthesis(args[1])
s = repr_operator(" - ", args)
elif name == "neg" and len(args) == 1:
if parenthesis[0] < 1:
args[0] = repr_parenthesis("%s" % args[0])
s = repr_operator("-", ["", args[0]])
elif name == "mul":
for i in range(len(args)):
if parenthesis[i] < 1:
args[i] = repr_parenthesis(args[i])
s = repr_operator("*", args)
elif name == "div" and len(args) == 2:
if parenthesis[0] < 1:
args[0] = repr_parenthesis(args[0])
if parenthesis[1] < 2:
args[1] = repr_parenthesis(args[1])
s = repr_operator("/", args)
elif name == "invert" and len(args) == 1:
if parenthesis[0] < 2:
args[0] = repr_parenthesis(args[0])
s = repr_operator("/", ["1", args[0]])
elif name == "pow" and len(args) == 2:
if parenthesis[0] < 3:
args[0] = repr_parenthesis(args[0])
if parenthesis[1] < 3:
args[1] = repr_parenthesis(args[1])
s = repr_exponant(args[0], args[1])
elif name == "getitem" and len(args) == 2:
if parenthesis[0] < 2:
args[0] = repr_parenthesis("%s" % args[0])
s = repr_index(args[0], args[1])
else:
s = repr_function(name, args)
return s
else:
return "%s(...)" % name