Verify JSON Data

[Chris Angelico]

On Tue, May 27, 2014 at 1:37 AM, Gene Heskett <gheskett at shentel.net> wrote:
> Just for S&G, and without checking the version numbers of anything, this
> may not be all that bulletproof a test:
>
> gene at coyote:~$ echo '[1, 2, 3]' | json_xs -t null 2>/dev/null; echo $?
> 127
> gene at coyote:~$ echo '[1; 2, 3]' | json_xs -t null 2>/dev/null; echo $?
> 127
>
> Old, buntu 10.04.4 LTS system, all up to date security patches wise.
> kernal 3.13.9, PAE on a quad core phenom.
>
> Interesting result.  Source of error? DamnedifIknow.
>

Return value 127 might well mean that json_xs isn't installed. It's
very difficult for a non-program to tell you whether JSON is valid or
not :) So I'd be checking 'which json_xs' before continuing.

ChrisA