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#! /usr/bin/env perl
use strict;
use warnings;
# Convert the contents of a file into a C string constant.
# Note that the compiler will implicitly add an extra 0 byte at the end
# of every string, so code using the string may need to remove that to get
# the exact contents of the original file.
# FIXME: why not a char array?
# treat only alphanumeric and not-" punctuation as safe
my $unsafe_chars = qr{[^][A-Za-z0-9!#%&'()*+,./:;<=>?^_{|}~ -]};
for my $file (@ARGV) {
open my $fh, '<:raw', $file or next;
print "/* Generated from $file */\n";
while (<$fh>) {
# replace unsafe chars with their equivalent octal escapes
s/($unsafe_chars)/\\@{[sprintf '%03o', ord($1)]}/gos;
print "\"$_\"\n"
}
close $fh;
}
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