I am betting that Ruby library still can’t handle a good 50% of the files that people throw at it because there’s not such thing as CSV standard. On the other

I am betting that Ruby library still can’t handle a good 50% of the files that people throw at it because there’s not such thing as CSV standard. On the other hand writing a custom parser using some off-the-shelf parser combinator library is easy and straightforward (ie I know how much time it will take to implement one and what exactly it does). Sometimes having multiple implementations of the same is better than a single generalised implementation struggling from combinatorial explosion.