I´m making a project where my script tests our JSON API. I have one functional version: 
use strict;
use warnings;
use JSON;
use JSON::Parse 'parse_json';
use Data::Dumper qw(Dumper);

my $content = `curl --silent -k -u admin:pass https://url/api/v2/GetDe
+viceInfo?$ARGV[0]`;
my $decoded_json = decode_json($content);

my $data = Dumper $decoded_json;
foreach my $line($data) {
    print "$line\n";
}

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The second part is to get the same output with all the Objects and Arrays highlighted but without any modules. I´ve got this so far: 
my $content = `curl --silent -k -u admin:pass https://url/api/v2/GetDe
+viceInfo?$ARGV[0]`;
$content =~ tr/"/ /;
$content =~ tr/,/\n/;
print "$content\n";

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The $content variable is an JSON API. The whole JSON is an Array, with objects in it, and other Arrays in those objects. The [] are for the Arrays and {} for Objects. Current Output of my script is: 
"device":[{ host_info: { engine_id: null
name: null
host_group_info: { name: null
remarks: null
id: 0}
...

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The objective is to make it look like below: 
"device": [{
       "host_info": {
               "engine_id": null,
               "name": null,
               "host_group_info": {
                   "name": null,
                   "remarks": null,
                   "id": 0
               }
       }
               ...

[download]
I strugle to implement a tab after each opening bracket and reverse the tab after each closing bracket. Maybe someone has got even a simpler solution than that?

In reply to Regex replacing Brackets with horizontal tabs and newliners by PerlMonkey22

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