Let's name these two results 'r1' and 'r2'
r1=r2
0
$r1
$r2
$&.>r1
┌─┐
│1│
└─┘
$&.>r2
┌┐
││
└┘
R1=:{.>r1
R2=:{.>r2
R1-:R2
1
In other words, while the contents are the same they are wrapped slightly
differently.
Thanks,
--
Raul
On Mon, Mar 17, 2014 at 12:10 AM, June Kim (김창준) <junea...@gmail.com> wrote:
> Hi
>
> Thanks Bill. And sorry for my delayed reply. BTW, I am cross-posting this
> to the J programming mailing list, for the people who are interested in the
> follow-up.
>
> I've ran your version of json against the standard package version and the
> standard pure python json module. Your version is faster but takes larger
> memory, but the result is not exactly the same(more on this at the end).
>
> The standard version:
>
> bm=. 1!:1 <'Bookmarks'
> ts=: 6!:2,7!:2@]
> ts 'dec_json bm'
> 66.3499 5.36879e8
>
> The new version you provided:
>
> ts 'dec_json bm'
> 34.6758 1.36445e9
>
> The standard pure python version:
>
> 0.4986 75272192
>
> In J, the standard json and the new version you provided resulted in
> different output.
>
> newresult -: oldresult
> 0
>
> Yet, the enc_json'd result seems to be the same.
>
> newresult -:&enc_json standardresult
> 1
>
> However, the resulted J representation is different. I just sampled one
> difference -- I am not sure if it could help.
>
>
> 3!:3 (((<1 0) {>@(1 {>@((<1 0){ >@((<1 1) { >@((<1 1){]))))))
> standardresult
> e300000000000000
> 2000000000000000
> 0100000000000000
> 0000000000000000
> 2800000000000000
> e300000000000000
> 2000000000000000
> 0100000000000000
> 0100000000000000
> 0100000000000000
> 3000000000000000
> e300000000000000
> 2000000000000000
> 0c00000000000000
> 0200000000000000
> 0200000000000000
> 0600000000000000
> 9000000000000000
> c800000000000000
> f800000000000000
> 2801000000000000
> 7001000000000000
> a001000000000000
> d001000000000000
> 1002000000000000
> 4002000000000000
> 9002000000000000
> c002000000000000
> f002000000000000
> e300000000000000
> 0200000000000000
> 0a00000000000000
> 0100000000000000
> 0a00000000000000
> 646174655f616464
> 6564000000000000
> e300000000000000
> 0200000000000000
> 0200000000000000
> 0100000000000000
> 0200000000000000
> 6964000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 6e616d6500000000
> e300000000000000
> 0200000000000000
> 1800000000000000
> 0100000000000000
> 1800000000000000
> 73796e635f747261
> 6e73616374696f6e
> 5f76657273696f6e
> 0000000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 7479706500000000
> e300000000000000
> 0200000000000000
> 0300000000000000
> 0100000000000000
> 0300000000000000
> 75726c0000000000
> e300000000000000
> 0200000000000000
> 1100000000000000
> 0100000000000000
> 1100000000000000
> 3133303031353737
> 3430313837303032
> 3100000000000000
> e300000000000000
> 0200000000000000
> 0500000000000000
> 0100000000000000
> 0500000000000000
> 3330363133000000
> e300000000000000
> 0200000000000000
> 2200000000000000
> 0100000000000000
> 2200000000000000
> ec9584eab8b02045
> 5350202d20416e64
> 726f696420eba788
> ecbc93ec9d9820ec
> 95b1000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 3230343300000000
> e300000000000000
> 0200000000000000
> 0300000000000000
> 0100000000000000
> 0300000000000000
> 75726c0000000000
> e300000000000000
> 0200000000000000
> 7e00000000000000
> 0100000000000000
> 7e00000000000000
> 68747470733a2f2f
> 6d61726b65742e61
> 6e64726f69642e63
> 6f6d2f6465746169
> 6c733f69643d636f
> 6d2e686577697474
> 736f66742e626162
> 7926666561747572
> 653d746f702d7061
> 6964233f743d5732
> 3531624777734d53
> 77794c4449774e69
> 7769593239744c6d
> 686c64326c306448
> 4e765a6e5175596d
> 466965534a640000
>
> 3!:3 (((<1 0) {>@(1 {>@((<1 0){ >@((<1 1) { >@((<1 1){])))))) newresult
> e300000000000000
> 2000000000000000
> 0100000000000000
> 0000000000000000
> 2800000000000000
> e300000000000000
> 2000000000000000
> 0100000000000000
> 0000000000000000
> 2800000000000000
> e300000000000000
> 2000000000000000
> 0c00000000000000
> 0200000000000000
> 0200000000000000
> 0600000000000000
> 9000000000000000
> c800000000000000
> f800000000000000
> 2801000000000000
> 7001000000000000
> a001000000000000
> d001000000000000
> 1002000000000000
> 4002000000000000
> 9002000000000000
> c002000000000000
> f002000000000000
> e300000000000000
> 0200000000000000
> 0a00000000000000
> 0100000000000000
> 0a00000000000000
> 646174655f616464
> 6564000000000000
> e300000000000000
> 0200000000000000
> 0200000000000000
> 0100000000000000
> 0200000000000000
> 6964000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 6e616d6500000000
> e300000000000000
> 0200000000000000
> 1800000000000000
> 0100000000000000
> 1800000000000000
> 73796e635f747261
> 6e73616374696f6e
> 5f76657273696f6e
> 0000000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 7479706500000000
> e300000000000000
> 0200000000000000
> 0300000000000000
> 0100000000000000
> 0300000000000000
> 75726c0000000000
> e300000000000000
> 0200000000000000
> 1100000000000000
> 0100000000000000
> 1100000000000000
> 3133303031353737
> 3430313837303032
> 3100000000000000
> e300000000000000
> 0200000000000000
> 0500000000000000
> 0100000000000000
> 0500000000000000
> 3330363133000000
> e300000000000000
> 0200000000000000
> 2200000000000000
> 0100000000000000
> 2200000000000000
> ec9584eab8b02045
> 5350202d20416e64
> 726f696420eba788
> ecbc93ec9d9820ec
> 95b1000000000000
> e300000000000000
> 0200000000000000
> 0400000000000000
> 0100000000000000
> 0400000000000000
> 3230343300000000
> e300000000000000
> 0200000000000000
> 0300000000000000
> 0100000000000000
> 0300000000000000
> 75726c0000000000
> e300000000000000
> 0200000000000000
> 7e00000000000000
> 0100000000000000
> 7e00000000000000
> 68747470733a2f2f
> 6d61726b65742e61
> 6e64726f69642e63
> 6f6d2f6465746169
> 6c733f69643d636f
> 6d2e686577697474
> 736f66742e626162
> 7926666561747572
> 653d746f702d7061
> 6964233f743d5732
> 3531624777734d53
> 77794c4449774e69
> 7769593239744c6d
> 686c64326c306448
> 4e765a6e5175596d
> 466965534a640000
>
>
> On Tue, Mar 4, 2014 at 12:40 PM, bill lam <bbill....@gmail.com> wrote:
>
> > June,
> >
> > I changed json decoder to avoid intermediate box contenation, the
> > trade-off might be a much larger space requirement. Please test
> > its performance, the space requirement, and will the result be
> > correct.
> >
> > Thanks.
> >
> > --
> > regards,
> > ====================================================
> > GPG key 1024D/4434BAB3 2008-08-24
> > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
> > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
> >
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
----------------------------------------------------------------------
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