Variables starting with `o' in netiso/xebec

• object netiso/xebec/xebec.bnf:285
• obj_name netiso/xebec/xebec.bnf:198
• obj_parent netiso/xebec/sets.h:23
• Objtree netiso/xebec/sets.c:14
• optsemi netiso/xebec/xebec.bnf:136