| #!/usr/bin/env perl |
| # |
| # xxdi.pl - perl implementation of 'xxd -i' mode |
| # |
| # Copyright 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| # Copyright 2013 Linux Foundation |
| # |
| # Released under the GPLv2. |
| # |
| # Implements the "basic" functionality of 'xxd -i' in perl to keep build |
| # systems from having to build/install/rely on vim-core, which not all |
| # distros want to do. But everyone has perl, so use it instead. |
| # |
| |
| use strict; |
| use warnings; |
| use File::Slurp qw(slurp); |
| |
| my $indata = slurp(@ARGV ? $ARGV[0] : \*STDIN); |
| my $len_data = length($indata); |
| my $num_digits_per_line = 12; |
| my $var_name; |
| my $outdata; |
| |
| # Use the variable name of the file we read from, converting '/' and '. |
| # to '_', or, if this is stdin, just use "stdin" as the name. |
| if (@ARGV) { |
| $var_name = $ARGV[0]; |
| $var_name =~ s/\//_/g; |
| $var_name =~ s/\./_/g; |
| } else { |
| $var_name = "stdin"; |
| } |
| |
| $outdata .= "unsigned char $var_name\[] = {"; |
| |
| # trailing ',' is acceptable, so instead of duplicating the logic for |
| # just the last character, live with the extra ','. |
| for (my $key= 0; $key < $len_data; $key++) { |
| if ($key % $num_digits_per_line == 0) { |
| $outdata .= "\n\t"; |
| } |
| $outdata .= sprintf("0x%.2x, ", ord(substr($indata, $key, 1))); |
| } |
| |
| $outdata .= "\n};\nunsigned int $var_name\_len = $len_data;\n"; |
| |
| binmode STDOUT; |
| print {*STDOUT} $outdata; |
| |