def get_slot_constraint(self, vrs):
"""
build rule CE slot constraint for clips
as time in a prem
"""
if utils.varpat.match(self.value):
return self.get_var_slot_constraint(vrs, self.value)
newvar = utils._newvar()
constraint = '?'+newvar
for x in ('start', 'end'):
x_constraint = getattr(self, x).get_constraint(vrs, newvar, [x])
if x_constraint:
constraint += '&:(eq (send ?%s get-%s) %s)' % (newvar, x, x_constraint)
return constraint
def get_slot_constraint(self, vrs):
"""
build rule CE constraint for clips
for a slot constraint for a prop in a rule
"""
if utils.varpat.match(self.value):
if self.clsvar and self.clsvar not in vrs:
if vrs[self.value]:
vrs[self.clsvar] = (
utils.clips_instance(*(vrs[self.value])),
[], ['class'])
else:
vrs[self.clsvar] = (self.value, [], ['class'])
return self.get_var_slot_constraint(vrs, self.value)
newvar = utils._newvar()
if self.clsvar:
if self.clsvar in vrs:
if vrs[self.clsvar]:
constraint = [
'?%(newvar)s&:(eq (class ?%(newvar)s) %(var)s)' % {
'newvar': newvar,
'var': utils.clips_instance(*(vrs[self.clsvar]))}]
else:
constraint = [
'?%(newvar)s&:(eq (class ?%(newvar)s) %(var)s)' % {
'newvar': newvar,
'var': self.clsvar}]
else:
vrs[self.clsvar] = (newvar, [], ('class',))
constraint = [class_constraint % {'val': newvar,
'cls': self.__class__.__name__}]
else:
constraint = [class_constraint % {'val': newvar,
'cls': self.__class__.__name__}]
for mod,cls in self.mods.items():
mod_o = getattr(self, mod, _m)
if mod_o is not _m:
constraint_meth = getattr(mod_o, 'get_constraint_cls',
mod_o.get_constraint)
constraint.append(constraint_meth(vrs, newvar, (mod,)))
return ''.join(constraint)
