def evaluate_properties(lines):
props = 'width', 'height', 'top', 'left', 'color', 'background-color', 'line-height', 'max-width', 'min-width', 'border-top-color'
for f, n, name, level, behind, sel, _sel in lines:
if not sel and name != 'pass':
prop, expr = name
if prop.startswith('margin-') or prop.startswith('padding-') or prop in props:
expr = color_pattern(expr)
expr = unit_pattern(expr)
try:
expr = str(eval(expr, _globals, _locals))
except SyntaxError as e:
raise SyntaxError(e.msg, (f, n, None, name))
except (NameError, AttributeError, ValueError) as e:
raise SyntaxError(e, (f, n, None, name))
elif prop in ('margin', 'padding', 'border', 'flex') or prop.startswith('border-'):
expr = color_pattern(expr)
expr = unit_pattern(expr)
for i in range(4):
try:
expr = ' '.join([str(eval(v, _globals, _locals)) for v in expr.split(None, i)])
except (SyntaxError, NameError, ValueError) as e:
if i == 3:
raise SyntaxError(getattr(e, 'msg', e.message), (f, n, None, name))
else:
break
name = prop, expr
yield f, n, name, level, behind, sel, _sel
def define_variables(lines, target):
for f, n, line in lines:
if '=' in line:
variable, _, value = line.partition('=')
variable, value = variable.rstrip(), value.lstrip()
if not variable or not value:
raise SyntaxError('variable or value not defined', (f, n, None, line))
elif ',' in variable:
raise SyntaxError('multiple assignments not allowed', (f, n, None, line))
elif variable[:1].isspace():
raise IndentationError('unresolved variable indent', (f, n, None, line))
elif variable.replace('_', '').isalnum():
if variable[0].isdigit():
raise SyntaxError('variable can\'t start with digit', (f, n, None, line))
elif variable in _reserved:
raise SyntaxError('variable uses reserved word', (f, n, None, line))
exec_line = variable + ' = ' + color_pattern(unit_pattern(value))
try:
exec exec_line in _globals, _locals
except (TypeError, SyntaxError, ValueError) as e:
raise SyntaxError(e.message + ': %s' % exec_line, (f, n, None, line))
else:
target.send((f, n, line))
else:
yield f, n, line
else:
yield f, n, line