Parsec how to find "matches" within a string

For an arbitrary parser myParser, it's quite easy:

solution = many (let one = myParser <|> (anyChar >> one) in one)

It might be clearer to write it this way:

solution = many loop
    where 
        loop = myParser <|> (anyChar >> loop)

Essentially, this defines a recursive parser (called loop) that will continue searching for the first thing that can be parsed by myParser. many will simply search exhaustively until failure, ie: EOF.

You can use

 many ( noneOf "0123456789")

i'm not sure about "noneOf" and "digit" types but you can give e try also to

many $ noneOf digit