def p_alphabet(p):
"""alphabet : BO ALPHABET alphabet_components BC"""
g = Model.Alphabet()
# build the grammar from the properties defined
# down the tree
for k, v in p[3].items():
if k == 'name':
g.setName(v)
elif k == 'tokens':
g.setTokens(v)
elif k == 'complements':
g.setComplements(v)
elif k == 'extend':
for kk, vv in v.items():
g.addExtension(kk, vv)
elif k == 'wildcard':
g.setWildcard(v)
p[0] = g
