Data.ByteString: Implement breakSubstring, packCString, packCStringLen

[konsumlamm]

Change the peekCAString/peekCAStringLen primitives to packCString/packCStringLen, which return a bytestring and change peekCAString and peekCAStringLen to use those new primitives.

[konsumlamm]

I think the reason the Hackage CI fails is because its mcabal was compiled with an older mhs version, so it expects peekCAString to be there.

[augustss]

When there are changes to the primitives the idea is to update the binary version number. I almost always forget to do it myself. 🙂

[augustss]

Do 'make preparedist' to rebuild the mcabal and cpphs .c files.

[konsumlamm]

When there are changes to the primitives the idea is to update the binary version number. I almost always forget to do it myself. 🙂

You mean the mhs version? As far as I can tell, that is done through updating the version in MicroHs.cabal and then running sh updateversion.sh? Should this be a patch, minor, or major update? What about the combinator file version?

[augustss]

No, I'm referring to combVersion in ExpPrint.hs and VERSION in eval.c.

[konsumlamm]

I'm getting stuck at bootstrapcpphs, which requires bin/cpphs, but make bin/cpphs doesn't work, because it uses an old combinator file version.

EDIT: Running make bin/cpphs before updating the combinator file version seems to work.

[augustss]

Also you can do make USECPPHS=cpphs bootstratcpphs, assuming you have cpphs installed.

[konsumlamm]

I regenerated everything, is there anything left to do?

[augustss]

Thanks for your ByteString changes. It was exactly what I needed for adding Unicode support.