0.2

• Change the API such that

  - type Sasha tag = [(Tag, ERE)]
  + type Sasha r   = [(ERE, BS.ByteString -> BS.ByteString -> r)]
  

  This allows to write scanner actions more like in alex:

  [ someRegexp := \tok inp' -> ...
  , another    := \tok inp' -> ...
  ]
  

  Similar change is also done in TTH interface.

• Add charSet :: Word8Set -> ERE helper.

0.1

• Use word8set package.