def compact(*args):
"""Returns a new list after removing any non-true values"""
ret = {}
if len(args) == 1:
args = args[0]
if isinstance(args, ListValue):
args = args.value
if isinstance(args, dict):
for i, item in args.items():
if False if isinstance(item, basestring) and _undefined_re.match(item) else bool(item):
ret[i] = item
elif False if isinstance(args, basestring) and _undefined_re.match(args) else bool(args):
ret[0] = args
else:
ret['_'] = ','
for i, item in enumerate(args):
if False if isinstance(item, basestring) and _undefined_re.match(item) else bool(item):
ret[i] = item
if isinstance(args, ListValue):
args = args.value
if isinstance(args, dict):
separator = args.get('_', None)
if separator is not None:
ret['_'] = separator
return ListValue(ret)
def a_expr(self, R):
m_expr = self.m_expr(R)
v = m_expr
while self._peek(self.a_expr_rsts) in self.a_expr_chks:
_token_ = self._peek(self.a_expr_chks)
if _token_ == 'ADD':
ADD = self._scan('ADD')
m_expr = self.m_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(m_expr, basestring) and _undefined_re.match(m_expr) else (v + m_expr)
else: # == 'SUB'
SUB = self._scan('SUB')
m_expr = self.m_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(m_expr, basestring) and _undefined_re.match(m_expr) else (v - m_expr)
return v
def m_expr(self, R):
u_expr = self.u_expr(R)
v = u_expr
while self._peek(self.m_expr_rsts) in self.m_expr_chks:
_token_ = self._peek(self.m_expr_chks)
if _token_ == 'MUL':
MUL = self._scan('MUL')
u_expr = self.u_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(u_expr, basestring) and _undefined_re.match(u_expr) else (v * u_expr)
else: # == 'DIV'
DIV = self._scan('DIV')
u_expr = self.u_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(u_expr, basestring) and _undefined_re.match(u_expr) else (v / u_expr)
return v
def first(self):
for v in self.values():
if isinstance(v, basestring) and _undefined_re.match(v):
continue
if bool(v):
return v
return v
def __init__(self, tokens, type=None):
self.tokens = tokens
self.units = {}
if tokens is None:
self.value = 0.0
elif isinstance(tokens, ParserValue):
self.value = float(tokens.value)
elif isinstance(tokens, NumberValue):
self.value = tokens.value
self.units = tokens.units.copy()
if tokens.units:
type = None
elif isinstance(tokens, (StringValue, basestring)):
tokens = getattr(tokens, 'value', tokens)
if _undefined_re.match(tokens):
raise ValueError("Value is not a Number! (%s)" % tokens)
try:
if tokens and tokens[-1] == '%':
self.value = to_float(tokens[:-1]) / 100.0
self.units = {'%': _units_weights.get('%', 1), '_': '%'}
else:
self.value = to_float(tokens)
except ValueError:
raise ValueError("Value is not a Number! (%s)" % tokens)
elif isinstance(tokens, (int, float)):
self.value = float(tokens)
else:
raise ValueError("Can't convert to CSS number: %r" % tokens)
if type is not None:
self.units = {type: _units_weights.get(type, 1), '_': type}
def u_expr(self, R):
_token_ = self._peek(self.u_expr_rsts)
if _token_ == 'SIGN':
SIGN = self._scan('SIGN')
u_expr = self.u_expr(R)
return 'undefined' if isinstance(u_expr, basestring) and _undefined_re.match(u_expr) else _inv('-', u_expr)
elif _token_ == 'ADD':
ADD = self._scan('ADD')
u_expr = self.u_expr(R)
return 'undefined' if isinstance(u_expr, basestring) and _undefined_re.match(u_expr) else u_expr
else: # in self.u_expr_chks
atom = self.atom(R)
v = atom
if self._peek(self.u_expr_rsts_) == 'UNITS':
UNITS = self._scan('UNITS')
v = call(UNITS, ListValue(ParserValue({0: v, 1: UNITS})), R, self._library, False)
return v
def and_test(self, R):
not_test = self.not_test(R)
v = not_test
while self._peek(self.and_test_rsts) == 'AND':
AND = self._scan('AND')
not_test = self.not_test(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) else (v and not_test)
return v
def expr(self, R):
and_test = self.and_test(R)
v = and_test
while self._peek(self.expr_rsts) == 'OR':
OR = self._scan('OR')
and_test = self.and_test(R)
v = and_test if isinstance(v, basestring) and _undefined_re.match(v) else (v or and_test)
return v
def not_test(self, R):
_token_ = self._peek(self.not_test_rsts)
if _token_ not in self.not_test_chks:
comparison = self.comparison(R)
return comparison
else: # in self.not_test_chks
while 1:
_token_ = self._peek(self.not_test_chks)
if _token_ == 'NOT':
NOT = self._scan('NOT')
not_test = self.not_test(R)
v = 'undefined' if isinstance(not_test, basestring) and _undefined_re.match(not_test) else (not not_test)
else: # == 'INV'
INV = self._scan('INV')
not_test = self.not_test(R)
v = 'undefined' if isinstance(not_test, basestring) and _undefined_re.match(not_test) else _inv('!', not_test)
if self._peek(self.not_test_rsts_) not in self.not_test_chks:
break
return v
def comparison(self, R):
a_expr = self.a_expr(R)
v = a_expr
while self._peek(self.comparison_rsts) in self.comparison_chks:
_token_ = self._peek(self.comparison_chks)
if _token_ == 'LT':
LT = self._scan('LT')
a_expr = self.a_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else (v < a_expr)
elif _token_ == 'GT':
GT = self._scan('GT')
a_expr = self.a_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else (v > a_expr)
elif _token_ == 'LE':
LE = self._scan('LE')
a_expr = self.a_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else (v <= a_expr)
elif _token_ == 'GE':
GE = self._scan('GE')
a_expr = self.a_expr(R)
v = 'undefined' if isinstance(v, basestring) and _undefined_re.match(v) or isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else (v >= a_expr)
elif _token_ == 'EQ':
EQ = self._scan('EQ')
a_expr = self.a_expr(R)
v = (None if isinstance(v, basestring) and _undefined_re.match(v) else v) == (None if isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else a_expr)
else: # == 'NE'
NE = self._scan('NE')
a_expr = self.a_expr(R)
v = (None if isinstance(v, basestring) and _undefined_re.match(v) else v) != (None if isinstance(a_expr, basestring) and _undefined_re.match(a_expr) else a_expr)
return v
def __init__(self, tokens):
self.tokens = tokens
self.value = (0, 0, 0, 1)
self.types = {}
if tokens is None:
self.value = (0, 0, 0, 1)
elif isinstance(tokens, ParserValue):
hex = tokens.value
self.value = self.HEX2RGBA[len(hex)](hex)
self.types = {'rgba': 1}
elif isinstance(tokens, ColorValue):
self.value = tokens.value
self.types = tokens.types.copy()
elif isinstance(tokens, NumberValue):
val = tokens.value
self.value = (val, val, val, 1)
elif isinstance(tokens, (list, tuple)):
c = tokens[:4]
r = 255.0, 255.0, 255.0, 1.0
c = [0.0 if c[i] < 0 else r[i] if c[i] > r[i] else c[i] for i in range(4)]
self.value = tuple(c)
type = tokens[-1]
if type in ('rgb', 'rgba', 'hsl', 'hsla'):
self.types = {type: 1}
elif isinstance(tokens, (int, float)):
val = float(tokens)
self.value = (val, val, val, 1)
else:
if isinstance(tokens, StringValue):
tokens = tokens.value
tokens = to_str(tokens)
tokens.replace(' ', '').lower()
if _undefined_re.match(tokens):
raise ValueError("Value is not a Color! (%s)" % tokens)
try:
self.value = self.HEX2RGBA[len(tokens)](tokens)
except:
try:
val = to_float(tokens)
self.value = (val, val, val, 1)
except ValueError:
try:
type, _, colors = tokens.partition('(')
colors = colors.rstrip(')')
if type in ('rgb', 'rgba'):
c = tuple(colors.split(','))
try:
c = [to_float(c[i]) for i in range(4)]
col = [0.0 if c[i] < 0 else 255.0 if c[i] > 255 else c[i] for i in range(3)]
col += [0.0 if c[3] < 0 else 1.0 if c[3] > 1 else c[3]]
self.value = tuple(col)
self.types = {type: 1}
except:
raise ValueError("Value is not a Color! (%s)" % tokens)
elif type in ('hsl', 'hsla'):
c = colors.split(',')
try:
c = [to_float(c[i]) for i in range(4)]
col = [c[0] % 360.0] / 360.0
col += [0.0 if c[i] < 0 else 1.0 if c[i] > 1 else c[i] for i in range(1, 4)]
self.value = tuple([c * 255.0 for c in colorsys.hls_to_rgb(col[0], 0.999999 if col[2] == 1 else col[2], 0.999999 if col[1] == 1 else col[1])] + [col[3]])
self.types = {type: 1}
except:
raise ValueError("Value is not a Color! (%s)" % tokens)
else:
raise ValueError("Value is not a Color! (%s)" % tokens)
except:
raise ValueError("Value is not a Color! (%s)" % tokens)
