129 lines
2.7 KiB
Perl
129 lines
2.7 KiB
Perl
#!/usr/bin/perl -w
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use strict;
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my $P = $0;
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# sort comparison functions
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sub by_category($$) {
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my ($a, $b) = @_;
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$a = uc $a;
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$b = uc $b;
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# This always sorts last
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$a =~ s/THE REST/ZZZZZZ/g;
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$b =~ s/THE REST/ZZZZZZ/g;
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return $a cmp $b;
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}
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sub by_pattern($$) {
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my ($a, $b) = @_;
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my $preferred_order = 'MRPLSWTQBCFXNK';
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my $a1 = uc(substr($a, 0, 1));
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my $b1 = uc(substr($b, 0, 1));
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my $a_index = index($preferred_order, $a1);
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my $b_index = index($preferred_order, $b1);
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$a_index = 1000 if ($a_index == -1);
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$b_index = 1000 if ($b_index == -1);
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if (($a1 =~ /^F$/ && $b1 =~ /^F$/) ||
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($a1 =~ /^X$/ && $b1 =~ /^X$/)) {
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return $a cmp $b;
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}
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if ($a_index < $b_index) {
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return -1;
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} elsif ($a_index == $b_index) {
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return 0;
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} else {
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return 1;
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}
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}
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sub trim {
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my $s = shift;
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$s =~ s/\s+$//;
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$s =~ s/^\s+//;
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return $s;
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}
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sub alpha_output {
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my ($hashref, $filename) = (@_);
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open(my $file, '>', "$filename") or die "$P: $filename: open failed - $!\n";
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foreach my $key (sort by_category keys %$hashref) {
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if ($key eq " ") {
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chomp $$hashref{$key};
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print $file $$hashref{$key};
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} else {
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print $file "\n" . $key . "\n";
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foreach my $pattern (sort by_pattern split('\n', %$hashref{$key})) {
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print $file ($pattern . "\n");
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}
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}
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}
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close($file);
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}
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sub file_input {
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my ($hashref, $filename) = (@_);
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my $lastline = "";
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my $case = " ";
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$$hashref{$case} = "";
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open(my $file, '<', "$filename") or die "$P: $filename: open failed - $!\n";
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while (<$file>) {
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my $line = $_;
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# Pattern line?
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if ($line =~ m/^([A-Z]):\s*(.*)/) {
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$line = $1 . ":\t" . trim($2) . "\n";
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if ($lastline eq "") {
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$$hashref{$case} = $$hashref{$case} . $line;
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next;
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}
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$case = trim($lastline);
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exists $$hashref{$case} and die "Header '$case' already exists";
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$$hashref{$case} = $line;
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$lastline = "";
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next;
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}
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if ($case eq " ") {
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$$hashref{$case} = $$hashref{$case} . $lastline;
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$lastline = $line;
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next;
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}
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trim($lastline) eq "" or die ("Odd non-pattern line '$lastline' for '$case'");
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$lastline = $line;
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}
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$$hashref{$case} = $$hashref{$case} . $lastline;
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close($file);
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}
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my %hash;
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my %new_hash;
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file_input(\%hash, "MAINTAINERS");
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foreach my $type (@ARGV) {
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foreach my $key (keys %hash) {
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if ($key =~ /$type/ || $hash{$key} =~ /$type/) {
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$new_hash{$key} = $hash{$key};
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delete $hash{$key};
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}
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}
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}
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alpha_output(\%hash, "MAINTAINERS.new");
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alpha_output(\%new_hash, "SECTION.new");
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exit(0);
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