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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" json_xs \- JSON::XS commandline utility .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& json_xs [\-v] [\-f inputformat] [\-t outputformat] .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fIjson_xs\fR converts between some input and output formats (one of them is \&\s-1JSON\s0). .PP The default input format is \f(CW\*(C`json\*(C'\fR and the default output format is \&\f(CW\*(C`json\-pretty\*(C'\fR. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\-v" 4 .IX Item "-v" Be slightly more verbose. .IP "\-f fromformat" 4 .IX Item "-f fromformat" Read a file in the given format from \s-1STDIN.\s0 .Sp \&\f(CW\*(C`fromformat\*(C'\fR can be one of: .RS 4 .IP "json \- a json text encoded, either utf\-8, utf16\-be/le, utf32\-be/le" 4 .IX Item "json - a json text encoded, either utf-8, utf16-be/le, utf32-be/le" .PD 0 .IP "cbor \- \s-1CBOR \s0(\s-1RFC 7049, \s0\s-1CBOR::XS\s0), a kind of binary \s-1JSON\s0" 4 .IX Item "cbor - CBOR (RFC 7049, CBOR::XS), a kind of binary JSON" .IP "storable \- a Storable frozen value" 4 .IX Item "storable - a Storable frozen value" .IP "storable-file \- a Storable file (Storable has two incompatible formats)" 4 .IX Item "storable-file - a Storable file (Storable has two incompatible formats)" .IP "bencode \- use Convert::Bencode, if available (used by torrent files, among others)" 4 .IX Item "bencode - use Convert::Bencode, if available (used by torrent files, among others)" .IP "clzf \- Compress::LZF format (requires that module to be installed)" 4 .IX Item "clzf - Compress::LZF format (requires that module to be installed)" .ie n .IP "eval \- evaluate the given code as (non\-utf\-8) Perl, basically the reverse of ""\-t dump""" 4 .el .IP "eval \- evaluate the given code as (non\-utf\-8) Perl, basically the reverse of ``\-t dump''" 4 .IX Item "eval - evaluate the given code as (non-utf-8) Perl, basically the reverse of -t dump" .IP "yaml \- \s-1YAML\s0 format (requires that module to be installed)" 4 .IX Item "yaml - YAML format (requires that module to be installed)" .IP "string \- do not attempt to decode the file data" 4 .IX Item "string - do not attempt to decode the file data" .ie n .IP "none \- nothing is read, creates an ""undef"" scalar \- mainly useful with ""\-e""" 4 .el .IP "none \- nothing is read, creates an \f(CWundef\fR scalar \- mainly useful with \f(CW\-e\fR" 4 .IX Item "none - nothing is read, creates an undef scalar - mainly useful with -e" .RE .RS 4 .RE .IP "\-t toformat" 4 .IX Item "-t toformat" .PD Write the file in the given format to \s-1STDOUT.\s0 .Sp \&\f(CW\*(C`toformat\*(C'\fR can be one of: .RS 4 .IP "json, json\-utf\-8 \- json, utf\-8 encoded" 4 .IX Item "json, json-utf-8 - json, utf-8 encoded" .PD 0 .IP "json-pretty \- as above, but pretty-printed" 4 .IX Item "json-pretty - as above, but pretty-printed" .IP "json\-utf\-16le, json\-utf\-16be \- little endian/big endian utf\-16" 4 .IX Item "json-utf-16le, json-utf-16be - little endian/big endian utf-16" .IP "json\-utf\-32le, json\-utf\-32be \- little endian/big endian utf\-32" 4 .IX Item "json-utf-32le, json-utf-32be - little endian/big endian utf-32" .IP "cbor \- \s-1CBOR \s0(\s-1RFC 7049, \s0\s-1CBOR::XS\s0), a kind of binary \s-1JSON\s0" 4 .IX Item "cbor - CBOR (RFC 7049, CBOR::XS), a kind of binary JSON" .IP "cbor-packed \- \s-1CBOR\s0 using extensions to make it smaller" 4 .IX Item "cbor-packed - CBOR using extensions to make it smaller" .IP "storable \- a Storable frozen value in network format" 4 .IX Item "storable - a Storable frozen value in network format" .IP "storable-file \- a Storable file in network format (Storable has two incompatible formats)" 4 .IX Item "storable-file - a Storable file in network format (Storable has two incompatible formats)" .IP "bencode \- use Convert::Bencode, if available (used by torrent files, among others)" 4 .IX Item "bencode - use Convert::Bencode, if available (used by torrent files, among others)" .IP "clzf \- Compress::LZF format" 4 .IX Item "clzf - Compress::LZF format" .IP "yaml \- \s-1YAML::XS\s0 format" 4 .IX Item "yaml - YAML::XS format" .IP "dump \- Data::Dump" 4 .IX Item "dump - Data::Dump" .IP "dumper \- Data::Dumper" 4 .IX Item "dumper - Data::Dumper" .IP "string \- writes the data out as if it were a string" 4 .IX Item "string - writes the data out as if it were a string" .ie n .IP "none \- nothing gets written, mainly useful together with ""\-e""" 4 .el .IP "none \- nothing gets written, mainly useful together with \f(CW\-e\fR" 4 .IX Item "none - nothing gets written, mainly useful together with -e" .PD Note that Data::Dumper doesn't handle self-referential data structures correctly \- use \*(L"dump\*(R" instead. .RE .RS 4 .RE .IP "\-e code" 4 .IX Item "-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 \f(CW$_\fR, and whatever is in there is written out afterwards. .SH "EXAMPLES" .IX Header "EXAMPLES" .Vb 1 \& json_xs \-t none <isitreally.json .Ve .PP \&\*(L"\s-1JSON\s0 Lint\*(R" \- tries to parse the file \fIisitreally.json\fR as \s-1JSON \-\s0 if it is valid \s-1JSON,\s0 the command outputs nothing, otherwise it will print an error message and exit with non-zero exit status. .PP .Vb 1 \& <src.json json_xs >pretty.json .Ve .PP Prettify the \s-1JSON\s0 file \fIsrc.json\fR to \fIdst.json\fR. .PP .Vb 1 \& json_xs \-f storable\-file <file .Ve .PP Read the serialised Storable file \fIfile\fR and print a human-readable \s-1JSON\s0 version of it to \s-1STDOUT.\s0 .PP .Vb 1 \& json_xs \-f storable\-file \-t yaml <file .Ve .PP Same as above, but write \s-1YAML\s0 instead (not using \s-1JSON\s0 at all :) .PP .Vb 1 \& json_xs \-f none \-e \*(Aq$_ = [1, 2, 3]\*(Aq .Ve .PP Dump the perl array as \s-1UTF\-8\s0 encoded \s-1JSON\s0 text. .PP .Vb 1 \& <torrentfile json_xs \-f bencode \-e \*(Aq$_ = join "\en", map @$_, @{$_\->{"announce\-list"}}\*(Aq \-t string .Ve .PP Print the tracker list inside a torrent file. .PP .Vb 1 \& lwp\-request http://cpantesters.perl.org/show/JSON\-XS.json | json_xs .Ve .PP Fetch the cpan-testers result summary \f(CW\*(C`JSON::XS\*(C'\fR and pretty-print it. .SH "AUTHOR" .IX Header "AUTHOR" Copyright (C) 2008 Marc Lehmann <json@schmorp.de>