| name | regex | op | | - | - | - | | concat | ab | a & b | | alternation | a\|b | a \| b | | repetition | a{n,m} | a * (n..m) | | class | [a-z] | 'a'..'z' |
ab
a & b
a\|b
a \| b
a{n,m}
a * (n..m)
[a-z]
'a'..'z'
TODO