| CPANEL_JSON_XS(1) | User Contributed Perl Documentation | CPANEL_JSON_XS(1) |
NAME
cpanel_json_xs - Cpanel::JSON::XS commandline utility
SYNOPSIS
cpanel_json_xs [-v] [-f inputformat] [-t outputformat]
DESCRIPTION
cpanel_json_xs converts between some input and output formats (one of them is JSON).
The default input format is "json" and the default output format is "json-pretty".
OPTIONS
- -v
- Be slightly more verbose.
- -f fromformat
- Read a file in the given format from STDIN.
"fromformat" can be one of:
- json - a json text encoded, either utf-8, utf16-be/le, utf32-be/le
- json-nonref - json according to RFC 7159
- json-relaxed - json with all relaxed options
- json-unknown - json with allow_unknown
- storable - a Storable frozen value
- storable-file - a Storable file (Storable has two incompatible formats)
- bencode - uses one of Net::BitTorrent::Protocol::BEP03::Bencode, Bencode or the broken Convert::Bencode, if available (used by torrent files, among others)
- clzf - Compress::LZF format (requires that module to be installed)
- eval - evaluate the given code as (non-utf-8) Perl, basically the reverse of "-t dump"
- yaml - loose YAML (requires YAML)
- yaml-tiny - loose YAML (requires YAML::Tiny or CPAN::Meta::YAML)
- yaml-xs - strict YAML 1.2 (requires YAML::XS)
- yaml-syck - YAML (requires YAML::Syck)
- cbor - CBOR (via CBOR::XS)
- string - do not attempt to decode the file data
- sereal - Sereal (via Sereal::Decoder)
- none - nothing is read, creates an "undef" scalar - mainly useful with "-e"
- -t toformat
- Write the file in the given format to STDOUT.
"toformat" can be one of:
- json, json-utf-8 - json, utf-8 encoded
- json-pretty - as above, but pretty-printed with sorted object keys
- json-stringify - as json-pretty with allow_stringify
- json-relaxed - as json-pretty, but with the additional options
- ->allow_stringify->allow_blessed->convert_blessed->allow_unknown ->allow_tags->stringify_infnan(1)
- json-utf-16le, json-utf-16be - little endian/big endian utf-16
- json-utf-32le, json-utf-32be - little endian/big endian utf-32
- storable - a Storable frozen value in network format
- storable-file - a Storable file in network format (Storable has two incompatible formats)
- bencode - uses one of Net::BitTorrent::Protocol::BEP03::Bencode, Bencode or the broken Convert::Bencode, if available (used by torrent files, among others)
- clzf - Compress::LZF format
- yaml - loose YAML (requires YAML)
- yaml-tiny - loose YAML (requires YAML::Tiny or CPAN::Meta::YAML)
- yaml-xs - strict YAML 1.2 (requires YAML::XS)
- yaml-syck - YAML (requires YAML::Syck)
- dump - Data::Dump
- dumper - Data::Dumper
- string - writes the data out as if it were a string
- sereal - Sereal (via Sereal::Encoder)
- none - nothing gets written, mainly useful together with "-e"
- Note that Data::Dumper doesn't handle self-referential data structures correctly - use "dump" instead.
- -e code
- Evaluate perl code after reading the data and before writing it out again - can be used to filter, create or extract data. The data that has been written is in $_, and whatever is in there is written out afterwards.
EXAMPLES
cpanel_json_xs -t none <isitreally.json
"JSON Lint" - tries to parse the file isitreally.json as JSON - if it is valid JSON, the command outputs nothing, otherwise it will print an error message and exit with non-zero exit status.
<src.json cpanel_json_xs >pretty.json
Prettify the JSON file src.json to dst.json.
cpanel_json_xs -f storable-file <file
Read the serialized Storable file file and print a human-readable JSON version of it to STDOUT.
cpanel_json_xs -f storable-file -t yaml <file
Same as above, but write YAML instead (not using JSON at all :)
cpanel_json_xs -f none -e '$_ = [1, 2, 3]'
Dump the perl array as UTF-8 encoded JSON text.
<torrentfile cpanel_json_xs -f bencode -e '$_ = join "\n", map @$_, @{$_->{"announce-list"}}' -t string
Print the tracker list inside a torrent file.
lwp-request http://cpantesters.perl.org/show/Cpanel-JSON-XS.json | cpanel_json_xs
Fetch the cpan-testers result summary "Cpanel::JSON::XS" and pretty-print it.
cpanel_json_xs -f yaml-xs -t yaml-tiny <META.yml >MYMETA.yml cpanel_json_xs -f yaml-tiny -t yaml-xs <MYMETA.yml >XSMETA.yml cpanel_json_xs -f yaml -t yaml <XSMETA.yml #BOOM! Error: YAML_LOAD_ERR_BAD_MAP_ELEMENT
Compare YAML en- and decoders, and see that YAML::XS generates unparsable YAML https://github.com/ingydotnet/yaml-libyaml-pm/issues/9
AUTHOR
Copyright (C) 2008 Marc Lehmann <json@schmorp.de> Copyright (C) 2016 Cpanel Inc
| 2023-07-25 | perl v5.38.0 |