28   BitVector BV(256, false);  in expand()  local
41       BV[Start] = true;  in expand()
53       BV[(uint8_t)C] = true;  in expand()
58     BV[(uint8_t)C] = true;  in expand()
59   return BV;  in expand()
88       Expected<BitVector> BV = expand(Chars.substr(1), Original);  in scan()  local
89       if (!BV)  in scan()
90         return BV.takeError();  in scan()
91       return BV->flip();  in scan()
101     BitVector BV(256, false);  in scan()
102     BV[(uint8_t)S[0]] = true;  in scan()
104     return BV;  in scan()
135     Expected<BitVector> BV = scan(S, Original);  in create()  local
136     if (!BV)  in create()
137       return BV.takeError();  in create()
138     Pat.Tokens.push_back(*BV);  in create()