70 lines
1.8 KiB
Perl
70 lines
1.8 KiB
Perl
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#!/usr/bin/perl -T -w
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# This is used to reverse xlock format back to life
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&search;
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sub search {
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local ($row, $col, $NOTUSED, $x, $y);
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local (@array);
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$HALFMAX = 64; # really 32 but being safe
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$MAXCOL = $MINCOL = $MAXROW = $MINROW = $HALFMAX;
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$NOTUSED = -127;
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$row = $col = $NOTUSED;
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$number = 0;
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while (<>) {
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if (!($_ =~ /^#/)) {
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@chars = split(//);
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$number = 0;
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$col = $NOTUSED;
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$negative = 1;
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foreach $c (@chars) {
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if ($c =~ /[-]/) {
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$negative = -1;
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} elsif ($c =~ /[0123456789]/) {
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$number = $number * 10 + ($c - '0');
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} elsif ($c =~ /[,]/) { # Last number does not have a ","
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if ($col > $NOTUSED) {
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$row = $number * $negative;
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$col = $col + $HALFMAX;
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$row = $row + $HALFMAX;
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$array{$col, $row} = 1;
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if ($col > $MAXCOL) {
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$MAXCOL = $col;
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} elsif ($col < $MINCOL) {
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$MINCOL = $col;
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}
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if ($row > $MAXROW) {
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$MAXROW = $row;
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} elsif ($row < $MINROW) {
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$MINROW = $row;
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}
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$col = $NOTUSED;
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} else {
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$col = $number * $negative;
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}
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$number = 0;
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$negative = 1;
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} elsif ($c =~ /[{}\/]/) { # Last number does not have a ","
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$col = $NOTUSED;
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$number = 0;
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$negative = 1;
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}
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}
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}
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}
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$x=$MAXCOL - $MINCOL + 1;
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$y=$MAXROW - $MINROW + 1;
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print "#x=$x, y=$y\n";
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for ($j = $MINROW; $j <= $MAXROW; $j++) {
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for ($i = $MINCOL; $i <= $MAXCOL; $i++) {
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if ($array{$i, $j}) {
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print "*";
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} else {
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print ".";
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}
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}
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print "\n";
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}
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}
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