streaming-parsers

Streaming parsers for file formats like JSON and YAML

Introduction

• reparsec is a resumable, backtracking parser (like attoparsec),
  that works on any token and can produce any type of error message
  (like megaparsec). It’s used as an auxilliary package for
  parsax.
• parsax is the main package that can parse either JSON or YAML in a
  streaming fashion, protects against security attacks, it can explain
  what it can parse (like optparse-applicative), and is written in
  applicative style.

Go to the parsax directory for more explanation.

Milestones

Milestone	Status	Appraisal
Test suite		Easy
High-level GADT for parser		Fairly straight-forward
Avoiding collision exploits		Difficult
Resumable parsing with backtracking		Difficult
Output warnings of ignored object keys		Easy
Custom errors		Straight-forward
Running m (IO/RIO) actions in a user parser		Fairly straight-forward
YAML backend		Straight-forward
JSON backend		Fairly straight-forward
Documentation generator		Straight-forward
Deal with utf8 strictly		Straight-forward
Deal with duplicate keys		Straight-forward
Supplying extra limits (array length, etc.)		Easy
Set hard limit on number of warnings generated		Fairly easy
Cleaned up, robust documentation generator	-	Fairly straight-forward
Include line/col info in errors	-	Fairly easy
Get code coverage to near 100%	-	Detailed
Memory/allocation tests	-	Fairly straight-forward
Update copyright (esp. from aeson, yaml) before publication	-	Easy