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package Pandoc; |
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765292
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use 5.014; |
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162
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use warnings; |
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304
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5
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6081
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use utf8; |
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154
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50
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6
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=head1 NAME |
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9
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Pandoc - wrapper for the mighty Pandoc document converter |
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=cut |
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our $VERSION = '0.9.1'; |
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15
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10
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4417
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use Pandoc::Version; |
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30
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10
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339
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62
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use Pandoc::Error; |
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18
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10
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178
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17
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10
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4739
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use File::Which; |
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10112
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10
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611
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18
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10
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10
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3746
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use File::Spec::Functions 'catdir'; |
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7243
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10
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606
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10
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5493
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use IPC::Run3; |
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313871
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10
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698
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20
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10
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10
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107
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use parent 'Exporter'; |
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21
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10
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163
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21
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our @EXPORT = qw(pandoc pandoc_data_dir); |
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23
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our $PANDOC; |
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our $PANDOC_PATH ||= $ENV{PANDOC_PATH} || 'pandoc'; |
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26
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sub import { |
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9
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9
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101
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shift; |
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29
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9
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50
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33
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46
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if ( @_ and $_[0] =~ /^[v0-9.<>=!, ]+$/ ) { |
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0
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0
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0
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$PANDOC //= Pandoc->new; |
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0
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0
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$PANDOC->require(shift); |
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} |
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0
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31
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$PANDOC //= Pandoc->new(@_) if @_; |
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35
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9
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12740
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Pandoc->export_to_level( 1, 'pandoc' ); |
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} |
37
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38
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sub VERSION { |
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0
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0
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0
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shift; |
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0
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0
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0
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$PANDOC //= Pandoc->new; |
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0
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0
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0
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$PANDOC->require(shift) if @_; |
42
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0
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0
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$PANDOC->version; |
43
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} |
44
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45
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sub new { |
46
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8
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8
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1
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29
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my $pandoc = bless {}, shift; |
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48
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8
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50
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33
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70
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my $bin = ( @_ and $_[0] !~ /^-./ ) ? shift : $PANDOC_PATH; |
49
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50
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8
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40
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my $bin_from_version = pandoc_data_dir( "bin", "pandoc-$bin" ); |
51
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8
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50
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33
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196
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if ( !-x $bin && $bin =~ /^\d+(\.\d+)*$/ && -x $bin_from_version ) { |
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33
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52
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0
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0
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$pandoc->{bin} = $bin_from_version; |
53
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} |
54
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else { |
55
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8
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54
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$pandoc->{bin} = which($bin); |
56
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} |
57
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58
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8
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2064
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$pandoc->{arguments} = []; |
59
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8
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50
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43
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$pandoc->arguments(@_) if @_; |
60
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61
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8
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23
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my ( $in, $out, $err ); |
62
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63
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8
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50
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31
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if ( $pandoc->{bin} ) { |
64
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0
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0
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run3 [ $pandoc->{bin}, '-v' ], \$in, \$out, \$err, |
65
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{ return_if_system_error => 1 }; |
66
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} |
67
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8
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50
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33
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35
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unless ( $out and $out =~ /^[^ ]+ (\d+(\.\d+)+)/ ) { |
68
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8
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64
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Pandoc::Error->throw( |
69
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message => "pandoc executable not found", |
70
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out => $out, |
71
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err => $err, |
72
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); |
73
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} |
74
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75
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0
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0
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$pandoc->{version} = Pandoc::Version->new($1); |
76
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0
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0
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0
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$pandoc->{data_dir} = $1 if $out =~ /^Default user data directory: (.+)$/m; |
77
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78
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# before pandoc supported --list-highlight-languages |
79
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0
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0
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0
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if ( $out =~ /^Syntax highlighting is supported/m ) { |
80
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$pandoc->{highlight_languages} = |
81
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0
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0
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[ map { split /\s*,\s*/, $_ } ( $out =~ /^ (.+)$/mg ) ]; |
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0
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82
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} |
83
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84
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0
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0
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my %libs; |
85
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10
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10
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7173
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my $LIBRARY_VERSION = qr/\s+(\pL\w*(?:-\pL\w*)*)\s+(\d+(?:\.\d+)*),?/; |
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10
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131
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10
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183
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0
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0
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86
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0
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0
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0
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if ( $out =~ /^Compiled with($LIBRARY_VERSION+)/m ) { |
87
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0
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0
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%libs = $1 =~ /$LIBRARY_VERSION/g; |
88
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0
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0
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for my $name ( keys %libs ) { |
89
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0
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0
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$libs{$name} = Pandoc::Version->new( $libs{$name} ); |
90
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} |
91
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} |
92
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0
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0
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$pandoc->{libs} = \%libs; |
93
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94
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0
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0
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return $pandoc; |
95
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} |
96
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97
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sub pandoc(@) { ## no critic |
98
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8
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50
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8
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1
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747
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$PANDOC //= eval { Pandoc->new } // 0; |
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8
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33
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55
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99
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100
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8
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50
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36
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if (@_) { |
101
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0
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0
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0
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return $PANDOC ? $PANDOC->run(@_) : -1; |
102
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} |
103
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else { |
104
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8
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29
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return $PANDOC; |
105
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} |
106
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} |
107
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108
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sub run { |
109
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0
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0
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1
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0
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my $pandoc = shift; |
110
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111
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0
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0
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my $args = 'ARRAY' eq ref $_[0] ? \@{ shift @_ } : undef; # \@args [ ... ] |
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0
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0
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112
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0
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my $opts = 'HASH' eq ref $_[-1] ? \%{ pop @_ } : undef; # [ ... ] \%opts |
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0
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0
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113
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114
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0
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0
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0
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if (@_) { |
115
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0
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0
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0
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0
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if ( !$args ) { # @args |
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0
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0
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116
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0
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0
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0
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0
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if ( $_[0] =~ /^-/ or $opts or @_ % 2 ) { |
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0
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117
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0
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0
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$args = \@_; |
118
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} |
119
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else { # %opts |
120
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0
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0
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$opts = {@_}; |
121
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} |
122
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} |
123
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elsif ( $args and !$opts and ( @_ % 2 == 0 ) ) { # \@args [, %opts ] |
124
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0
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0
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$opts = {@_}; |
125
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} |
126
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else { |
127
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# passed both the args and opts by ref, |
128
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# so other arguments don't make sense; |
129
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# or passed args by ref and an odd-length list |
130
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0
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0
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Pandoc::Error->throw('Too many or ambiguous arguments'); |
131
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} |
132
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} |
133
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134
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0
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0
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0
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$args //= []; |
135
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0
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0
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0
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$opts //= {}; |
136
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137
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0
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0
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for my $io (qw(in out err)) { |
138
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0
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0
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0
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0
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$opts->{"binmode_std$io"} //= $opts->{binmode} if $opts->{binmode}; |
139
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0
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0
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0
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if ( 'SCALAR' eq ref $opts->{$io} ) { |
140
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0
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0
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0
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next unless utf8::is_utf8( ${ $opts->{$io} } ); |
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0
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0
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141
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0
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0
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0
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$opts->{"binmode_std$io"} //= ':encoding(UTF-8)'; |
142
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} |
143
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} |
144
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145
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0
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0
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0
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my $throw = $opts->{throw} || !( $opts->{return_if_system_error} // 1 ); |
146
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0
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0
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0
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$opts->{out} //= \( my $out ); |
147
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0
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0
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0
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$opts->{err} //= \( my $err ); |
148
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149
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0
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0
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$opts->{return_if_system_error} = 1; |
150
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0
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0
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run3 [ $pandoc->{bin}, @{ $pandoc->{arguments} }, @$args ], |
151
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0
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0
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$opts->{in}, $opts->{out}, $opts->{err}, $opts; |
152
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153
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0
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0
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0
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my $status = $? == -1 ? -1 : $? >> 8; |
154
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155
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0
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0
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0
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0
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if ( $status && $throw ) { |
156
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Pandoc::Error->throw( |
157
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system => $!, |
158
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0
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0
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out => ${ $opts->{out} }, |
159
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0
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0
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err => ${ $opts->{err} }, |
160
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status => $status, |
161
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0
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0
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0
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message => ${ $opts->{err} } || 'pandoc execution failed' |
162
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); |
163
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} |
164
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else { |
165
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0
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0
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$status; |
166
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} |
167
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} |
168
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169
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sub convert { |
170
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0
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0
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1
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0
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my $pandoc = shift; |
171
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0
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0
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my $from = shift; |
172
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0
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0
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my $to = shift; |
173
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0
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0
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my $in = shift; |
174
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0
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0
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my $out = ""; |
175
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176
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0
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0
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my $utf8 = utf8::is_utf8($in); |
177
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178
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0
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0
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$pandoc->run( |
179
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[ @_, '-f' => $from, '-t' => $to, '-o' => '-' ], |
180
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{ in => \$in, out => \$out, throw => 1 } |
181
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); |
182
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183
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0
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0
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0
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utf8::decode($out) if $utf8; |
184
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185
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0
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0
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chomp $out; |
186
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0
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0
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return $out; |
187
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} |
188
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189
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sub parse { |
190
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0
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0
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1
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0
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my $pandoc = shift; |
191
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0
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0
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my $format = shift; |
192
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0
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0
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my $json = ""; |
193
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194
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0
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0
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0
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if ( $format eq 'json' ) { |
195
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0
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0
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$json = shift; |
196
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} |
197
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else { |
198
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0
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0
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$pandoc->require('1.12.1'); |
199
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0
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$json = $pandoc->convert( $format => 'json', @_ ); |
200
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} |
201
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202
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0
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0
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require Pandoc::Elements; |
203
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0
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0
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Pandoc::Elements::pandoc_json($json); |
204
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} |
205
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206
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sub file { |
207
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0
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0
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1
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0
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my $pandoc = shift; |
208
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0
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0
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$pandoc->require('1.12.1'); |
209
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210
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0
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0
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my @args = ( @_, '-t' => 'json', '-o' => '-' ); |
211
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0
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0
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$pandoc->run( \@args, out => \( my $json ), throw => 1 ); |
212
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213
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0
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0
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require Pandoc::Elements; |
214
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0
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0
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Pandoc::Elements::pandoc_json($json); |
215
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} |
216
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217
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sub require { |
218
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0
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0
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1
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0
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my $pandoc = shift; |
219
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0
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0
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0
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0
|
$pandoc = do { $PANDOC //= Pandoc->new } if $pandoc eq 'Pandoc'; |
|
0
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0
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220
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0
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0
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0
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unless ( $pandoc->version(@_) ) { |
221
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Pandoc::Error->throw( |
222
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message => "pandoc $_[0] required, only found " |
223
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. $pandoc->{version}, |
224
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|
version => $pandoc->{version}, |
225
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0
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0
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require => $_[0], |
226
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); |
227
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} |
228
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0
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0
|
return $pandoc; |
229
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|
} |
230
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231
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sub version { |
232
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0
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0
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0
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1
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0
|
my $pandoc = shift or return; |
233
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0
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0
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0
|
my $version = $pandoc->{version} or return; |
234
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235
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|
# compare against given version |
236
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0
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0
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0
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0
|
return if @_ and not $version->fulfills(@_); |
237
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238
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0
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0
|
return $version; |
239
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|
} |
240
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241
|
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|
sub data_dir { |
242
|
0
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0
|
1
|
0
|
catdir( shift->{data_dir}, @_ ); |
243
|
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|
} |
244
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245
|
|
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|
|
|
sub pandoc_data_dir { |
246
|
9
|
50
|
|
9
|
1
|
146
|
if ( $^O eq 'MSWin32' ) { |
247
|
0
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|
0
|
catdir( $ENV{APPDATA}, 'pandoc', @_ ); |
248
|
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|
} |
249
|
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|
else { |
250
|
9
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|
99
|
catdir( $ENV{HOME}, '.pandoc', @_ ); |
251
|
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|
|
} |
252
|
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|
} |
253
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254
|
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|
|
sub bin { |
255
|
0
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|
|
0
|
1
|
|
my $pandoc = shift; |
256
|
0
|
0
|
|
|
|
|
if (@_) { |
257
|
0
|
|
|
|
|
|
my $new = Pandoc->new(shift); |
258
|
0
|
|
|
|
|
|
$pandoc->{$_} = $new->{$_} for (qw(version bin data_dir)); |
259
|
|
|
|
|
|
|
} |
260
|
0
|
|
|
|
|
|
$pandoc->{bin}; |
261
|
|
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|
|
} |
262
|
|
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|
263
|
|
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|
|
sub arguments { |
264
|
0
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|
|
0
|
1
|
|
my $pandoc = shift; |
265
|
0
|
0
|
|
|
|
|
if (@_) { |
266
|
0
|
0
|
|
|
|
|
my $args = 'ARRAY' eq ref $_[0] ? shift : \@_; |
267
|
0
|
0
|
0
|
|
|
|
Pandoc::Error->throw("first default argument must be an -option") |
268
|
|
|
|
|
|
|
if @$args and $args->[0] !~ /^-./; |
269
|
0
|
|
|
|
|
|
$pandoc->{arguments} = $args; |
270
|
|
|
|
|
|
|
} |
271
|
0
|
|
|
|
|
|
@{ $pandoc->{arguments} }; |
|
0
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
} |
273
|
|
|
|
|
|
|
|
274
|
|
|
|
|
|
|
sub _list { |
275
|
0
|
|
|
0
|
|
|
my ( $pandoc, $which ) = @_; |
276
|
0
|
0
|
|
|
|
|
if ( !$pandoc->{$which} ) { |
277
|
0
|
0
|
|
|
|
|
if ( $pandoc->version('1.18') ) { |
|
|
0
|
|
|
|
|
|
278
|
0
|
|
|
|
|
|
my $list = ""; |
279
|
0
|
|
|
|
|
|
my $command = $which; |
280
|
0
|
|
|
|
|
|
$command =~ s/_/-/g; |
281
|
0
|
|
|
|
|
|
$pandoc->run( "--list-$command", { out => \$list } ); |
282
|
0
|
|
|
|
|
|
$pandoc->{$which} = [ split /\n/, $list ]; |
283
|
|
|
|
|
|
|
} |
284
|
|
|
|
|
|
|
elsif ( !defined $pandoc->{help} ) { |
285
|
0
|
|
|
|
|
|
my $help; |
286
|
0
|
|
|
|
|
|
$pandoc->run( '--help', { out => \$help } ); |
287
|
0
|
|
|
|
|
|
for my $inout (qw(Input Output)) { |
288
|
0
|
0
|
|
|
|
|
$help =~ /^$inout formats:\s+([a-z_0-9,\+\s*]+)/m or next; |
289
|
0
|
|
|
|
|
|
$pandoc->{ lc($inout) . '_formats' } = |
290
|
|
|
|
|
|
|
[ split /\*?,\s+|\*?\s+/, $1 ]; |
291
|
|
|
|
|
|
|
} |
292
|
0
|
|
|
|
|
|
$pandoc->{help} = $help; |
293
|
|
|
|
|
|
|
} |
294
|
|
|
|
|
|
|
} |
295
|
0
|
|
0
|
|
|
|
@{ $pandoc->{$which} // [] }; |
|
0
|
|
|
|
|
|
|
296
|
|
|
|
|
|
|
} |
297
|
|
|
|
|
|
|
|
298
|
|
|
|
|
|
|
sub input_formats { |
299
|
0
|
|
|
0
|
1
|
|
$_[0]->_list('input_formats'); |
300
|
|
|
|
|
|
|
} |
301
|
|
|
|
|
|
|
|
302
|
|
|
|
|
|
|
sub output_formats { |
303
|
0
|
|
|
0
|
1
|
|
$_[0]->_list('output_formats'); |
304
|
|
|
|
|
|
|
} |
305
|
|
|
|
|
|
|
|
306
|
|
|
|
|
|
|
sub highlight_languages { |
307
|
0
|
|
|
0
|
1
|
|
$_[0]->_list('highlight_languages'); |
308
|
|
|
|
|
|
|
} |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
sub extensions { |
311
|
0
|
|
|
0
|
1
|
|
my $pandoc = shift; |
312
|
0
|
|
0
|
|
|
|
my $format = shift // ''; |
313
|
0
|
|
|
|
|
|
my $out = ""; |
314
|
0
|
|
|
|
|
|
my %ext; |
315
|
|
|
|
|
|
|
|
316
|
0
|
0
|
|
|
|
|
if ( $pandoc->version < 1.18 ) { |
317
|
0
|
|
|
|
|
|
warn "pandoc >= 1.18 required for --list-extensions\n"; |
318
|
|
|
|
|
|
|
} |
319
|
|
|
|
|
|
|
else { |
320
|
0
|
0
|
|
|
|
|
if ($format) { |
321
|
0
|
0
|
0
|
|
|
|
if ( $format =~ /^[a-z0-9_]$/ and $pandoc->version >= '2.0.6' ) { |
322
|
0
|
|
|
|
|
|
$format = "=$format"; |
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
else { |
325
|
0
|
|
|
|
|
|
warn "ignoring format argument to Pandoc->extensions\n"; |
326
|
0
|
|
|
|
|
|
$format = ''; |
327
|
|
|
|
|
|
|
} |
328
|
|
|
|
|
|
|
} |
329
|
0
|
|
|
|
|
|
$pandoc->run( "--list-extensions$format", { out => \$out } ); |
330
|
|
|
|
|
|
|
%ext = map { |
331
|
0
|
|
|
|
|
|
$_ =~ /^([+-]?)\s*([^-+ ]+)\s*([+-]?)$/; |
|
0
|
|
|
|
|
|
|
332
|
0
|
0
|
0
|
|
|
|
( $2 => ( $1 || $3 ) eq '+' ? 1 : 0 ); |
333
|
|
|
|
|
|
|
} split /\n/, $out; |
334
|
|
|
|
|
|
|
} |
335
|
|
|
|
|
|
|
|
336
|
0
|
|
|
|
|
|
%ext; |
337
|
|
|
|
|
|
|
} |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
sub libs { |
340
|
0
|
|
|
0
|
1
|
|
$_[0]->{libs}; |
341
|
|
|
|
|
|
|
} |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
sub symlink { |
344
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
345
|
0
|
0
|
|
|
|
|
my ( $name, %opts ) = @_ % 2 ? @_ : ( '', @_ ); |
346
|
|
|
|
|
|
|
|
347
|
0
|
0
|
0
|
|
|
|
if ( '' eq $name // '' ) { |
|
|
0
|
|
|
|
|
|
348
|
0
|
|
|
|
|
|
$name = pandoc_data_dir( 'bin', 'pandoc' ); |
349
|
|
|
|
|
|
|
} |
350
|
|
|
|
|
|
|
elsif ( -d $name ) { |
351
|
0
|
|
|
|
|
|
$name = "$name/pandoc"; |
352
|
|
|
|
|
|
|
} |
353
|
|
|
|
|
|
|
|
354
|
0
|
|
|
|
|
|
my $bin = $self->bin; |
355
|
|
|
|
|
|
|
|
356
|
0
|
0
|
|
|
|
|
unlink $name if -l $name; |
357
|
0
|
0
|
|
|
|
|
if ( symlink $bin, $name ) { |
358
|
0
|
0
|
|
|
|
|
say "symlinked $name -> $bin" if $opts{verbose}; |
359
|
0
|
|
|
|
|
|
$self->bin($name); |
360
|
|
|
|
|
|
|
} |
361
|
|
|
|
|
|
|
else { |
362
|
0
|
|
|
|
|
|
die "failed to create symlink $name -> $bin\n"; |
363
|
|
|
|
|
|
|
} |
364
|
|
|
|
|
|
|
|
365
|
0
|
|
|
|
|
|
$self; |
366
|
|
|
|
|
|
|
} |
367
|
|
|
|
|
|
|
|
368
|
|
|
|
|
|
|
1; |
369
|
|
|
|
|
|
|
|
370
|
|
|
|
|
|
|
__END__ |