Add a combinator for decoding maybe fields

[passy]

I'm not sure if this is something you want to include here, but I found it quite useful in my code.

This adds a (.??) combinator to decode optional fields, like (.:?) in Aeson. I'm not really sure how to add that to the existing test suite. Any help there would be much appreciated.

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This change is

[garyb]

Perhaps we could talk about it as an optional field rather than specifically a "maybe" field? As the intent is to handle fields that may not exist, not those that are maybe-typed, right?

[passy]

True. Do you think renaming the function from getFieldMaybe to getFieldOptional would address that?

[garyb]

That was exactly what I meant, sorry I wasn't clear 😄

[passy]

@garyb No worries, just wanted to be sure. :) I've updated the name.

[garyb]

Thanks!

[passy]

Thanks for reviewing and merging! :)

On Fri, Aug 5, 2016, 12:39 Gary Burgess [email protected] wrote:

Merged #17
#17
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