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package TeX::XDV::Parse; |
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1189
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use strict; |
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use warnings; |
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use Exporter 'import'; |
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1547
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require TeX::DVI::Parse; |
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$TeX::XDV::Parse::VERSION = '0.04'; |
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@TeX::XDV::Parse::ISA = qw/TeX::DVI::Parse/; |
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@TeX::XDV::Parse::EXPORT_OK = qw( |
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XDV_FLAG_FONTTYPE_ATSUI |
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XDV_FLAG_FONTTYPE_ICU |
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XDV_FLAG_VERTICAL |
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XDV_FLAG_COLORED |
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XDV_FLAG_FEATURES |
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XDV_FLAG_VARIATIONS |
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XDV_FLAG_EXTEND |
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XDV_FLAG_SLANT |
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XDV_FLAG_EMBOLDEN |
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); |
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%TeX::XDV::Parse::EXPORT_TAGS = ( |
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'constants' => [qw/ |
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XDV_FLAG_FONTTYPE_ATSUI |
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XDV_FLAG_FONTTYPE_ICU |
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XDV_FLAG_VERTICAL |
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XDV_FLAG_COLORED |
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XDV_FLAG_FEATURES |
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XDV_FLAG_VARIATIONS |
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XDV_FLAG_EXTEND |
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XDV_FLAG_SLANT |
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XDV_FLAG_EMBOLDEN |
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/], |
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); |
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# from xdvipdfmx |
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# no hash interface before 5.8 for constant |
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use constant XDV_FLAG_FONTTYPE_ATSUI => 0x0001; |
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use constant XDV_FLAG_FONTTYPE_ICU => 0x0002; |
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138
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use constant XDV_FLAG_VERTICAL => 0x0100; |
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122
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use constant XDV_FLAG_COLORED => 0x0200; |
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use constant XDV_FLAG_FEATURES => 0x0400; |
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use constant XDV_FLAG_VARIATIONS => 0x0800; |
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use constant XDV_FLAG_EXTEND => 0x1000; |
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use constant XDV_FLAG_SLANT => 0x2000; |
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use constant XDV_FLAG_EMBOLDEN => 0x4000; |
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3
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2802
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50
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# Hmm.. either way we do this, the dispatcher in DVI::Parse |
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# sees the same thing. Either way, it ends up calling either |
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# DVI's handler or the one here. Since we're not trying to |
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# override anything, it doesn't really matter. The end result |
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# is the same as seen from the superclassing module. |
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56
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#our @COMMANDS; |
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#*COMMANDS = *TeX::DVI::Parse::COMMANDS; |
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59
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push @TeX::DVI::Parse::COMMANDS, ( |
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# opcode 250 is still unused, as in TeX::DVI::Parse |
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[ 'pic_file', \&make_pic_file ], # 251 |
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[ 'native_font_def', \&make_native_font_def ], # 252 |
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[ 'glyph_array', \&make_glyph_array ], # 253 |
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[ 'glyph_string', \&make_glyph_string ], # 254 |
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[ 'dir', \&dir ], # 255 |
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'undefined_command' # 256, not possible |
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); |
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69
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0
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2965
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sub make_glyph_string { make_glyph_thingy( 0, @_ ) } |
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0
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0
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0
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sub make_glyph_array { make_glyph_thingy( 1, @_ ) } |
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72
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sub make_glyph_thingy { |
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41
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41
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0
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my $is_array = shift; |
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41
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47
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my $buff = pop @_; |
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76
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# width, count |
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41
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294
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my @list = |
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unpack "lna*", |
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pack "Lna*", |
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unpack "Nna*", |
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$buff; |
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$buff = pop @list; |
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84
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# locations, glyphs |
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my $c = $list[-1]; |
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my $z = $is_array ? $c<<1 : $c; |
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329
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push @list, |
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unpack "l${z}n${c}a*", |
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pack "L${z}n${c}a*", |
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unpack "N${z}n${c}a*", |
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$buff; |
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$buff = pop @list; |
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253
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return @_, @list, $buff; |
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} |
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97
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sub make_pic_file { |
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0
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my $buff = pop @_; |
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28
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my @list = |
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unpack "CllllllsSa*", |
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pack "CLLLLLLSSa*", |
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unpack "CNNNNNNnna*", |
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$buff; |
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$buff = pop @list; |
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3
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my $file; |
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3
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($file,$buff) = unpack "A$list[-1]a*", $buff; |
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20
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return @_, @list, $file , $buff; |
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} |
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110
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sub make_native_font_def { |
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0
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4966
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my $buff = pop @_; |
112
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113
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# font_id, point_size, flags |
114
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my @list = |
115
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unpack "lLna*", |
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pack "LLna*", |
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unpack "NNna*", |
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$buff; |
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4
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$buff = pop @list; |
120
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121
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4
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my $f = $list[-1]; |
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123
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33
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65
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die "invalid signature" |
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unless $f & XDV_FLAG_FONTTYPE_ICU || $f & XDV_FLAG_FONTTYPE_ATSUI; |
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126
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# plen, flen, slen |
127
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push @list, unpack "CCCa*", $buff; |
128
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$buff = pop @list; |
129
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130
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# font_name, family_name, style_name |
131
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push @list, unpack "A$list[-3]A$list[-2]A$list[-1]a*", $buff; |
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$buff = pop @list; |
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134
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# rgba_color |
135
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4
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50
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if ($f & XDV_FLAG_COLORED) { |
136
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0
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0
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push @list, unpack "Na*", $buff; |
137
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0
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0
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$buff = pop @list; |
138
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} |
139
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140
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# variations |
141
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4
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50
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13
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if ($f & XDV_FLAG_VARIATIONS) { |
142
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0
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0
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push @list, unpack "na*", $buff; |
143
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0
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0
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$buff = pop @list; |
144
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0
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0
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my $n = $list[-1]; |
145
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0
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0
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push @list, |
146
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unpack "l${n}N${n}a*", # need to make sure first is signed |
147
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pack "L${n}N${n}a*", |
148
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unpack "N${n}N${n}a*", |
149
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$buff; |
150
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0
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0
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$buff = pop @list; |
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} |
152
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153
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# extend ? |
154
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4
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50
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12
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if ($f & XDV_FLAG_EXTEND) { |
155
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0
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0
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push @list, |
156
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unpack "la*", |
157
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pack "La*", |
158
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unpack "Na*", |
159
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$buff; |
160
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0
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0
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$buff = pop @list; |
161
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} |
162
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163
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# slant ? |
164
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4
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50
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12
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if ($f & XDV_FLAG_SLANT) { |
165
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0
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0
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push @list, |
166
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unpack "la*", |
167
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pack "La*", |
168
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unpack "Na*", |
169
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$buff; |
170
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0
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0
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$buff = pop @list; |
171
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} |
172
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173
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# bold ? |
174
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4
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50
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10
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if ($f & XDV_FLAG_EMBOLDEN) { |
175
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0
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0
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push @list, |
176
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unpack "la*", |
177
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pack "La*", |
178
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unpack "Na*", |
179
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$buff; |
180
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0
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0
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$buff = pop @list; |
181
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} |
182
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183
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4
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43
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return @_, @list, $buff; |
184
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} |
185
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186
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sub dir { |
187
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0
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0
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1
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my $buff = pop @_; |
188
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0
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my @list = unpack "Ca*", $buff; |
189
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0
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$buff = pop @list; |
190
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0
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0
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$list[-1] = $list[-1] ? 1 : 0; # 0=horizontal 1=vertical |
191
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0
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return @_, @list, $buff; |
192
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} |
193
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194
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sub undefined_command { |
195
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0
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0
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1
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die "undefined_command: @_\n"; |
196
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} |
197
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198
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1; |
199
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200
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__END__ |