OP_END_BUF       1477 regcomp.c        case ANCHOR_END_BUF:        r = add_opcode(reg, OP_END_BUF);        break;
OP_END_BUF       6193 regcomp.c        { OP_END_BUF,             "end-buf",         ARG_NON },
OP_END_BUF       2376 regexec.c          CASE(OP_END_BUF)  MOP_IN(OP_END_BUF);