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#!/usr/bin/env perl |
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9296
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use strict; |
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72
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use warnings; |
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122
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920
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use utf8; |
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532
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336199
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our $VERSION = '0.31'; |
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binmode STDERR, ':encoding(UTF-8)'; |
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1586
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binmode STDOUT, ':encoding(UTF-8)'; |
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binmode STDIN, ':encoding(UTF-8)'; |
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1570
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use Getopt::Long qw(:config no_ignore_case); |
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31360
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1635
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use Data::Roundtrip; |
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my $INPUT_STRING = undef; |
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my $INPUT_FILE = undef; |
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my $OUTPUT_FILE = undef; |
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my %params = ( |
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'escape-unicode' => 0, |
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# 'pretty' => 0, # not supported |
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); |
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sub usage { return |
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0
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"Usage : $0 [--I 'a-json-string' | --i 'afile.json'] [--o afile] [--(no-)escape-unicode|-e]\n" |
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."\nIt will read a JSON string from command line (-I), or from a file (-i)\n" |
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."\nor from STDIN (beware 4K limit on linux terminal, see CAVEATS for workaround).\n" |
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."It will print its contents as YAML to STDOUT or to a file (--o).\n" |
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."It can escape/un-escape unicode characters (--escape-unicode). Pretty-printing is not supported.\n" |
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} |
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2
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if( ! Getopt::Long::GetOptions( |
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'i=s' => \$INPUT_FILE, |
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0
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0
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'I=s' => sub { $INPUT_STRING = Encode::decode_utf8($_[1]) }, |
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'o=s' => \$OUTPUT_FILE, |
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0
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0
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'pretty|p!' => sub { warn "--pretty has no effect for converting to YAML and will be ignored.\n" }, |
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'escape-unicode|e!' => \$params{'escape-unicode'}, |
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0
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0
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) ){ die usage() } |
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2
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2103
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if( defined $INPUT_FILE ){ |
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0
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2
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$INPUT_STRING = Data::Roundtrip::read_from_file($INPUT_FILE); |
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2
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if( ! defined $INPUT_STRING ){ print STDERR "$0 : error, call to ".'Data::Roundtrip::read_from_file()'." has failed.\n"; exit(1) } |
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0
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0
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0
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0
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} elsif( ! defined $INPUT_STRING ){ |
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# read from STDIN |
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0
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0
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$INPUT_STRING = do { local $/; } |
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0
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0
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0
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0
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47
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} |
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49
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2
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11
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my $result = Data::Roundtrip::json2yaml($INPUT_STRING, \%params); |
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2
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100
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9
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if( ! defined $result ){ print STDERR "$0 : error, call to ".'Data::Roundtrip::json2yaml()'." has failed.\n"; exit(1) } |
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1
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5
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1
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0
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51
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52
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1
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50
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5
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if( defined $OUTPUT_FILE ){ |
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53
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0
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0
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0
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if( ! Data::Roundtrip::write_to_file($OUTPUT_FILE, $result) ){ print STDERR "$0 : error, call to ".'Data::Roundtrip::write_to_file()'." has failed for '$OUTPUT_FILE'.\n"; exit(1) } |
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0
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0
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54
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} else { |
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1
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7
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print STDOUT $result |
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56
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} |
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1; |
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__END__ |