3 <ebf> <g>               | 12:              REG_ANY(14)
   4 <ebfg> <>               | 14:              WHILEM[1/1](0)
                                                whilem: matched 3 out of 1..32767
   4 <ebfg> <>               |  3:                BRANCH(11)
   4 <ebfg> <>               |  4:                  OPEN1(6)
   4 <ebfg> <>               |  6:                  REG_ANY(7)
                                                    failed...
   4 <ebfg> <>               | 11:                BRANCH(13)
   4 <ebfg> <>               | 12:                  REG_ANY(14)
                                                    failed...
                                                  BRANCH failed...
                                                whilem: failed, trying continuat
ion...
   4 <ebfg> <>               | 15:                NOTHING(16)
   4 <ebfg> <>               | 16:                END(0)
Match successful!
Test:             1='g', 2=''
Freeing REx: "(?:(.)b|.)+"