Function addpatt

other_src/lua/src/lpeg.cpp:1002–1015

static int addpatt (lua_State *L, Instruction *p, int p1idx) {
  Instruction *p1 = (Instruction *)lua_touserdata(L, p1idx);
  int sz = pattsize(L, p1idx);
  int corr = jointable(L, p1idx);
  copypatt(p, p1, sz + 1);
  if (corr != 0) {
    Instruction *px;
    for (px = p; px < p + sz; px += sizei(px)) {
      if (isfenvoff(px) && px->i.offset != 0)
        px->i.offset += corr;
    }
  }
  return sz;
}


static void setinstaux (Instruction *i, Opcode op, int offset, int aux) {