Bug 17693 – std.json cannot parse dub.json package files

It's only a minor issue but I want to bring this to your attention. std.json cannot parse several dub.json files as the json implementation of dub allows trailing commas. std.json will fail to parse these package definitions. I noticed this (annoying) issue while writing an own dub registry server.

Fairly sure the JSON spec forbids trailing commas, so accepting them would actually be violating the spec. Although we could add an option to allow parsing trailing commas, it would make much more sense to fix Dub instead. Please file this at https://github.com/dlang/dub/issues ? If you would like std.json to have an option to allow trailing commas, please file a new issue, but I think it would need to have a much stronger justification than just Dub allowing them. As a workaround, I suggest that you use the same JSON parsing library in your project that Dub uses. That should guarantee compatibility.