def test_printing():
for c in (LatexPrinter, LatexPrinter(), MathMLPrinter,
PrettyPrinter, prettyForm, stringPict, stringPict("a"), Printer,
Printer(), PythonPrinter, PythonPrinter()):
#FIXME-py3k: sympy/printing/printer.py", line 220, in order
#FIXME-py3k: return self._settings['order']
#FIXME-py3k: KeyError: 'order'
check(c)
def __init__(self, **kwargs):
"""Initialize the printer.
All keyword arguments are forwarded to the base class
:py:class:`BasePrinter`.
"""
super().__init__(PythonPrinter(), **kwargs)
def _print_Function(self, expr):
if expr.func == re:
arg = expr.args[0]
if hasattr(arg, 'name'):
return arg.name + '_re'
return str(arg.func) + '(' + ','.join(
[self._print(x) for x in arg.args]) + ')'
if expr.func == im:
arg = expr.args[0]
if hasattr(arg, 'name'):
return arg.name + '_im'
return str(arg.func) + '(' + ','.join(
[self._print(x) for x in arg.args]) + ')'
return PythonPrinter._print_Function(self, expr)
def test_printing():
for c in (
LatexPrinter,
LatexPrinter(),
MathMLContentPrinter,
MathMLPresentationPrinter,
PrettyPrinter,
prettyForm,
stringPict,
stringPict("a"),
Printer,
Printer(),
PythonPrinter,
PythonPrinter(),
):
check(c)
def __init__(
self, zeros='zeros', dtype=None, einsum='einsum', extr_unary=True,
add_globals=None, **kwargs
):
"""Initialize the printer.
"""
globals_ = {
'einsum': einsum
}
if add_globals is not None:
globals_.update(add_globals)
super().__init__(
PythonPrinter(), extr_unary=extr_unary, add_globals=globals_,
**kwargs
)
self._zeros = zeros
self._dtype = dtype
self._einsum = einsum
C_UFs = {
"Heaviside": "Heaviside",
"DiracDelta": "DiracDelta",
"Abs": "fabsf",
"Min": "fminf",
"Max": "fmaxf"
}
Py_UFs = {
"Abs": "abs",
"Min": "min",
"Max": "max",
}
pyprint = PythonPrinter(None)
def ccode(expr):
return sp.ccode(expr, user_functions=C_UFs)
def pycode(expr):
return pyprint._str(expr.subs(Py_UFs))
def ccode_matrix(matexpr, indent):
lines = []
H, W = matexpr.shape
indent = ' ' * indent
for j in range(H):
def __init__(self, skip_multiplication_by_one=False):
self.skip_multiplication_by_one = skip_multiplication_by_one
PythonPrinter.__init__(self)
def test_base_printer_ctx(simple_drudge, colourful_tensor):
"""Test the context formation facility in base printer."""
dr = simple_drudge
p = dr.names
tensor = colourful_tensor
# Process indexed names by mangling the base name.
printer = BasePrinter(
PythonPrinter(),
mangle_base(lambda base, indices: base + str(len(indices))))
ctx = printer.transl(tensor)
def check_range(ctx, index):
"""Check the range information in a context for a index."""
assert ctx.index == index
assert ctx.range == p.R
assert ctx.lower == '0'
assert ctx.upper == 'n'
assert ctx.size == 'n'
assert ctx.base == 'x2'
for i, j in zip(ctx.indices, ['a', 'b']):
check_range(i, j)
continue
assert len(ctx.terms) == 2
for term in ctx.terms:
if len(term.sums) == 0:
# The transpose term.
assert term.phase == '+'
assert term.numerator == '2*r'
assert term.denominator == '(3*s)'
assert len(term.indexed_factors) == 1
factor = term.indexed_factors[0]
assert factor.base == 'u2'
for i, j in zip(factor.indices, ['b', 'a']):
check_range(i, j)
continue
assert len(term.other_factors) == 0
elif len(term.sums) == 1:
check_range(term.sums[0], 'c')
assert term.phase == '-'
assert term.numerator == '1'
assert term.denominator == '2'
assert len(term.indexed_factors) == 2
for factor in term.indexed_factors:
if factor.base == 'u2':
expected = ['a', 'c']
elif factor.base == 'v2':
expected = ['c', 'b']
else:
assert False
for i, j in zip(factor.indices, expected):
check_range(i, j)
continue
continue
assert len(term.other_factors) == 1
assert term.other_factors[0] == 'c**2'
else:
assert False
def test_events_generation(eval_seq_deps):
"""Test the event generation facility in the base printer."""
eval_seq = eval_seq_deps
with patch.object(BasePrinter, '__abstractmethods__', frozenset()):
printer = BasePrinter(PythonPrinter())
events = printer.form_events(eval_seq)
i1 = IndexedBase('I1')
i2 = IndexedBase('I2')
i3 = Symbol('I3')
r1 = IndexedBase('R1')
r2 = IndexedBase('R2')
events.reverse() # For easy popping from front.
for i in [i1, i2, i3]:
event = events.pop()
assert isinstance(event, TensorDecl)
assert event.comput.target == i
continue
event = events.pop()
assert isinstance(event, BeginBody)
event = events.pop()
assert isinstance(event, BeforeComp)
assert event.comput.target == i1
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == i1
assert event.term_idx == 0
# I1 drives I3.
event = events.pop()
assert isinstance(event, BeforeComp)
assert event.comput.target == i3
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == i3
assert event.term_idx == 0
# I3, I1, drives the first term of R1.
event = events.pop()
assert isinstance(event, BeforeComp)
assert event.comput.target == r1
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == r1
assert event.term_idx == 0
# Now I3 should be out of dependency.
event = events.pop()
assert isinstance(event, OutOfUse)
assert event.comput.target == i3
# Another one driven by I1.
event = events.pop()
assert isinstance(event, BeforeComp)
assert event.comput.target == r2
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == r2
assert event.term_idx == 0
# I1 no longer needed any more.
event = events.pop()
assert isinstance(event, OutOfUse)
assert event.comput.target == i1
# Nothing driven.
event = events.pop()
assert isinstance(event, BeforeComp)
assert event.comput.target == i2
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == i2
assert event.term_idx == 0
# The last term in R1.
event = events.pop()
assert isinstance(event, CompTerm)
assert event.comput.target == r1
assert event.term_idx == 1
# Finally, free I2.
event = events.pop()
assert isinstance(event, OutOfUse)
assert event.comput.target == i2
event = events.pop()
assert isinstance(event, EndBody)
assert len(events) == 0