DB<1> x split /(a|b)+/, '12aba34ba5'
0  12
1  'a'
2  34
3  'a'
4  5

##</code><code>##

  DB<8> x split /(a|b|c|d|e)+/, '12abc34de5'
0  12
1  'c'
2  34
3  'e'
4  5

##</code><code>##

  DB<12> x '12abc34de5' =~ /(a|b|c|d|e)+/g
0  'c'
1  'e'

##</code><code>##

  DB<16> x split /([abcde]+)/, '12abc34de5'
0  12
1  'abc'
2  34
3  'de'
4  5