Re: [Haskell-cafe] Attoparsec: match many, skipping rest

Am 11.04.20 um 22:23 schrieb amindfv@gmail.com:

Say I've got an Attoparsec parser like:

p = string "prio:" *> digit

And some text, e.g.

s = "this is just a prio:5 example, I'd prio:6 very much like to prio:4 parse"

What's the most idiomatic way to apply p to s so that I get out a list ['5', '6', '4']?

If your input language is regular, as it appears to be, you could try regex-applicative. Your desired combinator could be expressed simply as: many_ending_with p = many (many anySym *> p) without incurring any backtracking cost. Cheers Ben