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1 | #!/usr/bin/perl -w | |
2 | ||
3 | use strict; | |
4 | ||
5 | my $P = $0; | |
6 | ||
7 | # sort comparison functions | |
8 | sub by_category($$) { | |
9 | my ($a, $b) = @_; | |
10 | ||
11 | $a = uc $a; | |
12 | $b = uc $b; | |
13 | ||
14 | # This always sorts last | |
15 | $a =~ s/THE REST/ZZZZZZ/g; | |
16 | $b =~ s/THE REST/ZZZZZZ/g; | |
17 | ||
18 | return $a cmp $b; | |
19 | } | |
20 | ||
21 | sub by_pattern($$) { | |
22 | my ($a, $b) = @_; | |
23 | my $preferred_order = 'MRPLSWTQBCFXNK'; | |
24 | ||
25 | my $a1 = uc(substr($a, 0, 1)); | |
26 | my $b1 = uc(substr($b, 0, 1)); | |
27 | ||
28 | my $a_index = index($preferred_order, $a1); | |
29 | my $b_index = index($preferred_order, $b1); | |
30 | ||
31 | $a_index = 1000 if ($a_index == -1); | |
32 | $b_index = 1000 if ($b_index == -1); | |
33 | ||
34 | if (($a1 =~ /^F$/ && $b1 =~ /^F$/) || | |
35 | ($a1 =~ /^X$/ && $b1 =~ /^X$/)) { | |
36 | return $a cmp $b; | |
37 | } | |
38 | ||
39 | if ($a_index < $b_index) { | |
40 | return -1; | |
41 | } elsif ($a_index == $b_index) { | |
42 | return 0; | |
43 | } else { | |
44 | return 1; | |
45 | } | |
46 | } | |
47 | ||
48 | sub trim { | |
49 | my $s = shift; | |
50 | $s =~ s/\s+$//; | |
51 | $s =~ s/^\s+//; | |
52 | return $s; | |
53 | } | |
54 | ||
55 | sub alpha_output { | |
56 | my ($hashref, $filename) = (@_); | |
57 | ||
58 | open(my $file, '>', "$filename") or die "$P: $filename: open failed - $!\n"; | |
59 | foreach my $key (sort by_category keys %$hashref) { | |
60 | if ($key eq " ") { | |
61 | chomp $$hashref{$key}; | |
62 | print $file $$hashref{$key}; | |
63 | } else { | |
64 | print $file "\n" . $key . "\n"; | |
65 | foreach my $pattern (sort by_pattern split('\n', %$hashref{$key})) { | |
66 | print $file ($pattern . "\n"); | |
67 | } | |
68 | } | |
69 | } | |
70 | close($file); | |
71 | } | |
72 | ||
73 | sub file_input { | |
74 | my ($hashref, $filename) = (@_); | |
75 | ||
76 | my $lastline = ""; | |
77 | my $case = " "; | |
78 | $$hashref{$case} = ""; | |
79 | ||
80 | open(my $file, '<', "$filename") or die "$P: $filename: open failed - $!\n"; | |
81 | ||
82 | while (<$file>) { | |
83 | my $line = $_; | |
84 | ||
85 | # Pattern line? | |
86 | if ($line =~ m/^([A-Z]):\s*(.*)/) { | |
87 | $line = $1 . ":\t" . trim($2) . "\n"; | |
88 | if ($lastline eq "") { | |
89 | $$hashref{$case} = $$hashref{$case} . $line; | |
90 | next; | |
91 | } | |
92 | $case = trim($lastline); | |
93 | exists $$hashref{$case} and die "Header '$case' already exists"; | |
94 | $$hashref{$case} = $line; | |
95 | $lastline = ""; | |
96 | next; | |
97 | } | |
98 | ||
99 | if ($case eq " ") { | |
100 | $$hashref{$case} = $$hashref{$case} . $lastline; | |
101 | $lastline = $line; | |
102 | next; | |
103 | } | |
104 | trim($lastline) eq "" or die ("Odd non-pattern line '$lastline' for '$case'"); | |
105 | $lastline = $line; | |
106 | } | |
107 | $$hashref{$case} = $$hashref{$case} . $lastline; | |
108 | close($file); | |
109 | } | |
110 | ||
111 | my %hash; | |
112 | my %new_hash; | |
113 | ||
114 | file_input(\%hash, "MAINTAINERS"); | |
115 | ||
116 | foreach my $type (@ARGV) { | |
117 | foreach my $key (keys %hash) { | |
118 | if ($key =~ /$type/ || $hash{$key} =~ /$type/) { | |
119 | $new_hash{$key} = $hash{$key}; | |
120 | delete $hash{$key}; | |
121 | } | |
122 | } | |
123 | } | |
124 | ||
125 | alpha_output(\%hash, "MAINTAINERS.new"); | |
126 | alpha_output(\%new_hash, "SECTION.new"); | |
127 | ||
128 | exit(0); |