Lazily parse a JSON text file using stdx.data.json?
Steven Schveighoffer
schveiguy at yahoo.com
Sun Dec 17 16:51:21 UTC 2017
On 12/17/17 4:44 AM, Jonathan M Davis wrote:
> If I were seriously looking at
> reading in a file lazily as a forward range, I'd look at
> http://code.dlang.org/packages/iopipe, though as I understand it, it's very
> much a work in progress.
There is an even more work-in-progress library built on that, but it's
not yet in dub (this was the library I wrote for my dconf talk this
year): https://github.com/schveiguy/jsoniopipe
This kind of demonstrates how to parse json data lazily with pretty high
performance.
It really depends on what you are trying to do, though.
> As for auto-decoding, yeah, it sucks. You can work around it with stuff like
> std.utf.byCodeUnit, but auto-decoding is a problem all around, and it's one
> that we're likely stuck with, because unfortunately, we haven't found a way
> to remove it without breaking everything.
I think there eventually will have to be a day of reckoning for
auto-decoding. But it probably will take a monumental effort to show how
it can be done without being too painful for existing code. I still
believe it can be done.
-Steve
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