@hackage / scanner-attoparsec

Inject attoparsec parser with backtracking into non-backtracking scanner

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  • Last updated , by YurasShumovich
  • License BSD-3-Clause
  • Categories Parsers

  • Maintained by: shumovichy@gmail.com

  • Lottery factor: 0

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scanner-attoparsec

Inject attoparsec parser with backtracking into non-backtracking scanner

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Backtracking kills performance, so scanner package doesn't support it. But sometimes you just need it. E.g. you have a mostly non-backtracking parser, but a small bit of its grammar is too complex to transform it to non-backtracking form. In that case you can inject a backtracking attoparsec parser into otherwise non-backtracking scanner.

See also http://hackage.haskell.org/package/scanner