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[ #206 ] Deriving FromField/ToField instances

15

Works only for the following representations: * Single nullary constructor By default encodes constructor name * Sum with nullary or unary constructors Encoding is similar to 'UntaggedValue' encoding from 'aeson'

stevladimir

There is an instance of `ParseField` for `Word16` and I was expecting it to fail for an input of "65536" because it is out-of-range. I was surprised to find out...

jchia

Question on csv programming exercise and encoding rows missing specific header keys

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# Problem Description I have the need to take a collection of csv documents in a folder and merge them together into one really large csv document. The columns within...

CoreyWinkelmannPP

Per-line parser reporting per-line errors

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Right now, the functions in Data.Csv generally return `Either String (Vector a)` or a similar variant, which is great in most cases. If you want to get errors on a...

MaxGabriel

Several of the example files reference a salaries.csv file. As far as I can tell from searching the codebase, this file doesn't actually exist. I _believe_ this would just be...

MaxGabriel

Deriving FromField/ToField instances?

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There is an API for deriving ToRecord/FromRecord instances, but none for ToField/FromField. I looked through opened and closed issues and was unable to find any discussion regarding this. Are there...

stevladimir

Fixes handling of double quotes for unescaped fields with tests

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related to issue #98. This is to fix a possible Oracle / MS Excel CSV export weirdness where fields can be created which are 'unescaped' but still contain double quote...

robwithhair

Use specific builder functions for encoding.

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Instead of keeping internal function for decoding we can reuse much more efficient builders from the bytestring library. It increases speed and improves memory usage and allows more code sharing...

qnikst

Not clear what is meant by unpacking

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An error of `Exception: parse error (Failed reading: conversion error: cannot unpack array of length 10 into a 10-tuple.` is received which does not make any sense to me. It's...

chrissound

Fail to parse UTF-8 file with BOM

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When trying to decode a CSV file with BOM (U+EFFF at beginning of file), it fails with the following error: ``` *** Exception: parse error (Failed reading: satisfy) at "...

abailly