def from_user(self, x):
factor = self.factor
if factor is None:
return x
x = x.remainder_near(factor)
pi_4 = Decimal("1.0").atan()
return x * pi_4 * 8 / factor
def moneyfmt(value,
places=2,
curr="",
sep=",",
dp=".",
pos="",
neg="-",
trailneg=""):
"""Convert Decimal to a money formatted string.
places: required number of places after the decimal point
curr: optional currency symbol before the sign (may be blank)
sep: optional grouping separator (comma, period, space, or blank)
dp: decimal point indicator (comma or period)
only specify as blank when places is zero
pos: optional sign for positive numbers: '+', space or blank
neg: optional sign for negative numbers: '-', '(', space or blank
trailneg:optional trailing minus indicator: '-', ')', space or blank
>>> d = Decimal('-1234567.8901')
>>> moneyfmt(d, curr='$')
'-$1,234,567.89'
>>> moneyfmt(d, places=0, sep='.', dp='', neg='', trailneg='-')
'1.234.568-'
>>> moneyfmt(d, curr='$', neg='(', trailneg=')')
'($1,234,567.89)'
>>> moneyfmt(Decimal(123456789), sep=' ')
'123 456 789.00'
>>> moneyfmt(Decimal('-0.02'), neg='<', trailneg='>')
'<0.02>'
"""
q = Decimal(10)**-places # 2 places --> '0.01'
sign, digits, _ = value.quantize(q).as_tuple()
result = []
digits = list(map(str, digits))
build, next = result.append, digits.pop
if sign:
build(trailneg)
for i in range(places):
build(next() if digits else "0")
if places:
build(dp)
if not digits:
build("0")
i = 0
while digits:
build(next())
i += 1
if i == 3 and digits:
i = 0
build(sep)
build(curr)
build(neg if sign else pos)
return "".join(reversed(result))
def to_user(self, x):
factor = self.factor
if factor is None:
return x
pi_4 = Decimal("1.0").atan()
return x * factor / pi_4 / 8
def loop():
impl.start_redraw()
pstack(f'{gc.mem_free()} RPN bytes free')
impl.setline(5, "> " + "".join(entry) + "_")
impl.refresh()
impl.end_redraw()
while True:
do_pstack = False
do_pentry = False
message = ''
c = impl.getch()
if c in '\x7f\x08':
if entry:
entry.pop()
do_pentry = True
elif stack:
stack.pop()
do_pstack = True
if c == '\x1b':
del entry[:]
do_pentry = True
elif c in '0123456789.eE':
if c == '.' and '.' in entry:
c = 'e'
entry.append(c)
do_pentry = True
elif c == '\x04':
break
elif c in ' \n':
if entry:
try:
stack.append(Decimal("".join(entry)))
except Exception as e:
message = str(e)
del entry[:]
elif c == '\n' and stack:
stack.append(stack[-1])
do_pstack = True
elif c in ops:
if entry:
try:
stack.append(Decimal("".join(entry)))
except Exception as e:
message = str(e)
del entry[:]
op = ops.get(c)
try:
if callable(op):
message = op() or ''
else:
message = do_op(*op) or ''
except (KeyboardInterrupt, SystemExit):
raise
except Exception as e:
message = str(e)
do_pstack = True
impl.start_redraw()
if do_pstack:
pstack(message)
do_pentry = True
if do_pentry:
impl.setline(5, "> " + "".join(entry) + "_")
if do_pentry or do_pstack:
impl.refresh()
impl.end_redraw()
result = []
digits = list(map(str, digits))
build, next = result.append, digits.pop
if sign:
build(trailneg)
for i in range(places):
build(next() if digits else "0")
if places:
build(dp)
if not digits:
build("0")
i = 0
while digits:
build(next())
i += 1
if i == 3 and digits:
i = 0
build(sep)
build(curr)
build(neg if sign else pos)
return "".join(reversed(result))
if __name__ == "__main__":
d = Decimal("-1234567.8901")
print(moneyfmt(d, curr="$"))
print(moneyfmt(d, places=0, sep=".", dp="", neg="", trailneg="-"))
print(moneyfmt(d, curr="$", neg="(", trailneg=")"))
print(moneyfmt(Decimal(123456789), sep=" "))
print(moneyfmt(Decimal("-0.02"), neg="<", trailneg=">"))