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29 lines
417 B
Plaintext
29 lines
417 B
Plaintext
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#!/usr/bin/perl
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sub usage
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{
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print STDERR "usage: $0 [-g] [file ...]\n";
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exit(1);
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}
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if ($ARGV[0] eq "-g") {
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$grep = 1;
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shift @ARGV;
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}
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&usage if $ARGV[0] =~ /^-/;
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while (<>) {
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@c = unpack "C*";
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for (@c) {
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if ($_ == 10) {
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print "$s\n" if $found || !$grep;
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$found = 0;
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undef $s;
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} elsif ($_ < 0x80) {
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$s .= pack("c", $_);
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} else {
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$s .= sprintf("\e[7m%02x\e[0m", $_);
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$found = 1;
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}
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}
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}
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