def __init__(self, line):
Definition.__init__(
self, line,
'([a-zA-Z_][a-zA-Z0-9_]*)(|\\[.+\\])/([^ ]+)Ref(?:|/([!m]+))$')
self.refname = self.matches.group(1)
arrdef = self.matches.group(2)
self.objname = self.matches.group(3)
try:
objdef = PhysicsObject.get(self.objname)
except KeyError:
raise Definition.NoMatch()
if objdef.is_singlet():
raise RuntimeError('Cannot create reference to single object ' +
objdef.name)
modifier = self.matches.group(4)
if modifier is None:
mod = ''
else:
mod = '/' + modifier
# create a branch for the index with name {name}_
Branch.__init__(
self, '{name}_{arrdef}/S{mod} = -1'.format(name=self.refname,
arrdef=arrdef,
mod=mod))
