/usr/share/perl5/Term/Choose/Linux.pm is in libterm-choose-perl 1.511-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 | package Term::Choose::Linux;
use warnings;
use strict;
use 5.008003;
our $VERSION = '1.511';
use Term::ReadKey qw( GetTerminalSize ReadKey ReadMode );
use Term::Choose::Constants qw( :linux );
sub new {
return bless {}, $_[0];
}
sub __get_key_OS {
my ( $self, $mouse ) = @_;
my $c1 = ReadKey( 0 );
return if ! defined $c1;
if ( $c1 eq "\e" ) {
my $c2 = ReadKey( 0.10 );
if ( ! defined $c2 ) { return KEY_ESC; } # unused
#elsif ( $c3 eq 'A' ) { return VK_UP; } vt 52
#elsif ( $c3 eq 'B' ) { return VK_DOWN; }
#elsif ( $c3 eq 'C' ) { return VK_RIGHT; }
#elsif ( $c3 eq 'D' ) { return VK_LEFT; }
#elsif ( $c3 eq 'H' ) { return VK_HOME; }
elsif ( $c2 eq 'O' ) {
my $c3 = ReadKey( 0 );
if ( $c3 eq 'A' ) { return VK_UP; }
elsif ( $c3 eq 'B' ) { return VK_DOWN; }
elsif ( $c3 eq 'C' ) { return VK_RIGHT; }
elsif ( $c3 eq 'D' ) { return VK_LEFT; }
elsif ( $c3 eq 'F' ) { return VK_END; }
elsif ( $c3 eq 'H' ) { return VK_HOME; }
elsif ( $c3 eq 'Z' ) { return KEY_BTAB; }
else {
return NEXT_get_key;
}
}
elsif ( $c2 eq '[' ) {
my $c3 = ReadKey( 0 );
if ( $c3 eq 'A' ) { return VK_UP; }
elsif ( $c3 eq 'B' ) { return VK_DOWN; }
elsif ( $c3 eq 'C' ) { return VK_RIGHT; }
elsif ( $c3 eq 'D' ) { return VK_LEFT; }
elsif ( $c3 eq 'F' ) { return VK_END; }
elsif ( $c3 eq 'H' ) { return VK_HOME; }
elsif ( $c3 eq 'Z' ) { return KEY_BTAB; }
elsif ( $c3 =~ m/^[0-9]$/ ) {
my $c4 = ReadKey( 0 );
if ( $c4 eq '~' ) {
if ( $c3 eq '2' ) { return VK_INSERT; } # unused
elsif ( $c3 eq '3' ) { return VK_DELETE; } # unused
elsif ( $c3 eq '5' ) { return VK_PAGE_UP; }
elsif ( $c3 eq '6' ) { return VK_PAGE_DOWN; }
else {
return NEXT_get_key;
}
}
elsif ( $c4 =~ m/^[;0-9]$/ ) { # response to "\e[6n"
my $abs_curs_y = $c3;
my $ry = $c4;
while ( $ry =~ m/^[0-9]$/ ) {
$abs_curs_y .= $ry;
$ry = ReadKey( 0 );
}
return NEXT_get_key if $ry ne ';';
my $abs_curs_x = '';
my $rx = ReadKey( 0 );
while ( $rx =~ m/^[0-9]$/ ) {
$abs_curs_x .= $rx;
$rx = ReadKey( 0 );
}
if ( $rx eq 'R' ) {
#$self->{abs_cursor_x} = $abs_curs_x; # unused
$self->{abs_cursor_y} = $abs_curs_y;
}
return NEXT_get_key;
}
else {
return NEXT_get_key;
}
}
# http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
elsif ( $c3 eq 'M' && $mouse ) {
my $event_type = ord( ReadKey( 0 ) ) - 32;
my $x = ord( ReadKey( 0 ) ) - 32;
my $y = ord( ReadKey( 0 ) ) - 32;
my $button = $self->__mouse_event_to_button( $event_type );
return NEXT_get_key if $button == NEXT_get_key;
return [ $self->{abs_cursor_y}, $button, $x, $y ];
}
elsif ( $c3 eq '<' && $mouse ) { # SGR 1006
my $event_type = '';
my $m1;
while ( ( $m1 = ReadKey( 0 ) ) =~ m/^[0-9]$/ ) {
$event_type .= $m1;
}
return NEXT_get_key if $m1 ne ';';
my $x = '';
my $m2;
while ( ( $m2 = ReadKey( 0 ) ) =~ m/^[0-9]$/ ) {
$x .= $m2;
}
return NEXT_get_key if $m2 ne ';';
my $y = '';
my $m3;
while ( ( $m3 = ReadKey( 0 ) ) =~ m/^[0-9]$/ ) {
$y .= $m3;
}
return NEXT_get_key if $m3 !~ m/^[mM]$/;
my $button_released = $m3 eq 'm' ? 1 : 0;
return NEXT_get_key if $button_released;
my $button = $self->__mouse_event_to_button( $event_type );
return NEXT_get_key if $button == NEXT_get_key;
return [ $self->{abs_cursor_y}, $button, $x, $y ];
}
else {
return NEXT_get_key;
}
}
else {
return NEXT_get_key;
}
}
else {
return ord $c1;
}
};
sub __mouse_event_to_button {
my ( $self, $event_type ) = @_;
my $button_drag = ( $event_type & 0x20 ) >> 5;
return NEXT_get_key if $button_drag;
my $button;
my $low_2_bits = $event_type & 0x03;
if ( $low_2_bits == 3 ) {
$button = 0;
}
else {
if ( $event_type & 0x40 ) {
$button = $low_2_bits + 4; # 4,5
}
else {
$button = $low_2_bits + 1; # 1,2,3
}
}
return $button;
}
sub __set_mode {
my ( $self, $mouse, $hide_cursor ) = @_;
if ( $mouse ) {
if ( $mouse == 3 ) {
my $return = binmode STDIN, ':utf8';
if ( $return ) {
print SET_ANY_EVENT_MOUSE_1003;
print SET_EXT_MODE_MOUSE_1005;
}
else {
$mouse = 0;
warn "binmode STDIN, :utf8: $!\n";
warn "mouse-mode disabled\n";
}
}
elsif ( $mouse == 4 ) {
my $return = binmode STDIN, ':raw';
if ( $return ) {
print SET_ANY_EVENT_MOUSE_1003;
print SET_SGR_EXT_MODE_MOUSE_1006;
}
else {
$mouse = 0;
warn "binmode STDIN, :raw: $!\n";
warn "mouse-mode disabled\n";
}
}
else {
my $return = binmode STDIN, ':raw';
if ( $return ) {
print SET_ANY_EVENT_MOUSE_1003;
}
else {
$mouse = 0;
warn "binmode STDIN, :raw: $!\n";
warn "mouse-mode disabled\n";
}
}
}
Term::ReadKey::ReadMode( 'ultra-raw' );
print HIDE_CURSOR if $hide_cursor;
return $mouse;
};
sub __reset_mode {
my ( $self, $mouse, $hide_cursor ) = @_;
print SHOW_CURSOR if $hide_cursor;
if ( $mouse ) {
binmode STDIN, ':encoding(UTF-8)' or warn "binmode STDIN, :encoding(UTF-8): $!\n";
print UNSET_EXT_MODE_MOUSE_1005 if $mouse == 3;
print UNSET_SGR_EXT_MODE_MOUSE_1006 if $mouse == 4;
print UNSET_ANY_EVENT_MOUSE_1003;
}
$self->__reset();
Term::ReadKey::ReadMode( 'restore' );
}
sub __get_term_size {
#my ( $self ) = @_;
my ( $width, $height ) = ( GetTerminalSize() )[ 0, 1 ];
return $width - WIDTH_CURSOR, $height;
# $width - WIDTH_CURSOR: don't let items reach the right edge of the terminal;
# selecting an item which reaches the right edge of the terminal
# messes up the output - maybe because the (hidden) terminal-cursor needs a space
}
sub __get_cursor_position {
my ( $self ) = @_;
#$self->{abs_cursor_x} = 0; # unused
$self->{abs_cursor_y} = 0;
print GET_CURSOR_POSITION;
}
sub __clear_screen {
#my ( $self ) = @_;
print CLEAR_SCREEN;
}
sub __clear_to_end_of_screen {
#my ( $self ) = @_;
print CLEAR_TO_END_OF_SCREEN;
}
sub __bold_underline {
#my ( $self ) = @_;
print BOLD_UNDERLINE;
}
sub __reverse {
#my ( $self ) = @_;
print REVERSE;
}
sub __reset {
#my ( $self ) = @_;
print RESET;
}
sub __up {
#my ( $self ) = @_;
print "\e[${_[1]}A";
}
sub __left {
#my ( $self ) = @_;
print "\e[${_[1]}D";
}
sub __right {
#my ( $self ) = @_;
print "\e[${_[1]}C";
}
1;
__END__
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