yaws_api:filter_parse/3 bug

[leoliu]

The function says return a list of values but erroneously return a tuple. Could someone take a look and also consider if returning {ok, Vs} is better than Vs? Thanks.

[vinoski]

Clearly, the code returns either a tuple or undefined, and this has been true for a long time — I traced the list_to_tuple call back over a decade, and the comment and the list_to_tuple call have been there together for quite awhile. Changing the return value now would likely break user code, so I won't change that, but I'll change the comment.

[leoliu]

Thanks for the clarification.

Come to think about it more returning a list here would make it indistinguishable to single value.