Review implementations by Megaparsec (or implement combinators from Text.Megaparsec.Combinator)

[schneiderfelipe]

Some Parsec combinators were improved by Megaparsec. Implement the following or find alternatives:

• [x] between
• [x] sepBy
• [x] sepBy1
• [ ] choice
• [ ] count
• [ ] count'
• [ ] eitherP
• [ ] endBy
• [ ] endBy1
• [ ] manyTill
• [ ] someTill
• [ ] option
• [ ] sepEndBy
• [ ] sepEndBy1
• [ ] skipMany
• [ ] skipSome

Code can be found here. See here in particular about sepBy1 and sepBy.

EDIT: review and ensure

• [ ] preference on Megaparsec's naming over Parsec's
• [ ] preference on Megaparsec's strategies over Parsec's