why gson can parse some string not stand json such as "[a,b,c]" ?

[somewon]

        JsonParser parser = new JsonParser();
        JsonElement el = parser.parse("[a,b,c]");
        JsonArray array = new JsonArray();
        array = el.getAsJsonArray();

? why?

[JakeWharton]

It's not valid JSON. Try "[\"a\", \"b\", \"c\"]" instead.

[somewon]

Yes. I know that. It's not valid JSON. But gson could parse this.
I'm curious about why gson have this feature.

[JakeWharton]

Oh you're asking why it can parse it? For historical reasons Gson is lenient by default and unfortunately there's no sane API to disable it for JsonParser that I can see. Even if you create your own JsonReader and call setLenient(false) Gson will ignore that setting.

Disabling the lenient behavior can be done when using the object binding API (via the Gson type), but there's hoops to jump through. Are you able to use the binding API instead of the DOM API?

[pretizy]

I haven't reviewed the code, but can you explain why the lenient behavior
affects the json standard format
On Jan 4, 2016 6:12 AM, "Jake Wharton" notifications@github.com wrote:

Oh you're asking why it can parse it? For historical reasons Gson is
lenient by default and unfortunately there's no sane API to disable it for
JsonParser that I can see. Even if you create your own JsonReader and
call setLenient(false) Gson will ignore that setting.

Disabling the lenient behavior can be done when using the object binding
API (via the Gson type), but there's hoops to jump through. Are you able
to use the binding API instead of the DOM API?

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#763 (comment).

[Marcono1234]

Probably resolved (but not really fixed) by the documentation improvements of #2122.

[eamonnmcmanus]

I think those documentation improvements are probably the best we can do given compatibility requirements and the maintenance-mode status of this project.