Inject attoparsec parser with backtracking into non-backtracking scanner https://github.com/Yuras/scanner-attoparsec
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Inject attoparsec parser with backtracking into non-backtracking scanner
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.
- initial implementation