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#!/usr/bin/env perl
use strict;
use warnings;
use 5.010;
my %opts;
for my $chr ('a' .. 'z', 'A' .. 'Z') {
$opts{$chr} = q{};
}
open(my $fh, '<', 'src/options.c') or die("Can't open options.c: $!");
while (my $line = <$fh>) {
chomp($line);
if ($line =~ /\{"(?<long>[^"]+)"\s*,.+,.+, (?<short>...)/) {
if (substr($+{'short'}, 0, 1) eq '\'') {
$opts{substr($+{'short'}, 1, 1)} = $+{'long'};
}
else {
$opts{$+{'short'}} = $+{'long'};
}
}
}
close($fh);
foreach my $short (sort keys %opts) {
printf(
"%s\t%s\n",
$short,
$opts{$short},
);
}
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