3 # Empire - A multi-player, client/server Internet based war game.
4 # Copyright (C) 1986-2013, Dave Pare, Jeff Bailey, Thomas Ruschak,
5 # Ken Stevens, Steve McClure, Markus Armbruster
7 # Empire is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
22 # See files README, COPYING and CREDITS in the root of the source
23 # tree for related information and legal notices. It is expected
24 # that future projects/authors will amend these files as needed.
28 # mksubj.pl: Update the subject index pages
30 # Known contributors to this file:
31 # Ken Stevens (when it was still info.pl)
32 # Markus Armbruster, 2006-2013
34 # Usage: mksubj.pl SUBJECT... INFO-FILE...
36 # Read the INFO-FILE..., update info/SUBJECT.t for each SUBJECT.
42 # The chapters, in order
43 my @Chapters = qw/Introduction Concept Command Server/;
45 my @Levels = qw/Basic Expert Obsolete/;
48 # $filename{TOPIC} is TOPIC's file name
50 # $long{TOPIC} is true when TOPIC's page is "long"
52 # $chapter{TOPIC} is TOPIC's chapter (first arg to .TH)
54 # $desc{TOPIC} is a one line description of TOPIC (second arg to .NA)
56 # $level{TOPIC} is TOPIC's difficulty level (arg to .LV)
62 # $subject{$subj}{$chap} = "item1\nitem2\n..."
63 # Topics in that subject organized by chapter.
65 # $largest{$sub} The largest topic name in that subject (used for
69 while ($#ARGV >= 0 && $ARGV[0] !~ /\.t$/) {
70 $Subjects{shift @ARGV} = undef;
74 $filename{fn2topic($_)} = $_;
81 for (keys %Subjects) {
87 $fn =~ s,.*/([^/]*)\.t$,$1,;
92 # Set $filename, $long{TOPIC}, $chapter{TOPIC}, $desc{TOPIC},
94 # Update %subject, %largest.
97 my $topic = fn2topic($filename);
101 or die "Can't stat $filename: $!";
102 $long{$topic} = $st->size > 9999;
104 open(F, "<$filename")
105 or die "Can't open $filename: $!";
108 if (/^\.TH (\S+) (\S.+\S)$/) {
109 if (!grep(/^$1$/, @Chapters)) {
110 error("First argument to .TH was '$1', which is not a known chapter");
112 $chapter{$topic} = $1;
113 if ($1 eq "Command" && $2 ne "\U$topic") {
114 error("Second argument to .TH was '$2' but it should be '\U$topic'");
117 error("The first line in the file must be a .TH request");
121 if (/^\.NA (\S+) "(\S.+\S)"$/) {
123 error("First argument to .NA was '$1' but it should be '$topic'");
127 error("The second line in the file must be a .NA request");
131 if (/^\.LV (\S+)$/) {
132 if (!grep(/^$1$/, @Levels)) {
133 error("The argument to .LV was '$1', which is not a known level");
137 error("The third line in the file must be a .LV request");
145 if (/^\.SA "([^\"]*)"/) {
146 parse_see_also($topic, $1);
148 error("Incorrect .SA Syntax. Syntax should be '.SA \"item1, item2\"'");
152 error("Multiple .SA requests. Each file may contain at most one.") if /^\.SA/;
155 error(".SA request is missing");
162 my ($topic, $sa) = @_;
163 my $wanted = $chapter{$topic};
164 my $found; # found a subject?
166 $wanted = undef if $wanted eq 'Concept' or $wanted eq 'Command';
168 for (split(/, /, $sa)) {
169 next if exists $filename{$_};
170 error("Unknown topic $_ in .SA") unless exists $Subjects{$_};
171 set_subject($_, $topic);
173 if ($wanted && $_ eq $wanted) {
178 error("No subject listed in .SA") unless $found;
179 error("Chapter $wanted not listed in .SA") if $wanted;
182 # Add a new entry to %subject and possibly to %largest
184 my ($sub, $topic) = @_;
185 my $chap = $chapter{$topic};
186 $subject{$sub}{$chap} .= "$topic\n";
187 $largest{$sub} = "" unless defined $largest{$_};
188 $largest{$sub} = $topic if length $topic > length $largest{$sub};
191 # Update a Subject.t file
194 my $fname = "info/$subj.t";
196 my ($any_topic, $any_basic, $any_obsolete, $any_long);
198 $out .= '.\" DO NOT EDIT THIS FILE. It was automatically generated by mksubj.pl'."\n";
199 $out .= ".TH Subject \U$subj\n";
200 $largest{$subj} =~ s/-/M/g;
201 $out .= ".in \\w'$largest{$subj}XX\\0\\0\\0\\0'u\n";
202 for my $chap (@Chapters) {
203 next unless exists $subject{$subj}{$chap};
205 for my $topic (split(/\n/, $subject{$subj}{$chap})) {
208 if ($level{$topic} eq 'Basic') {
212 if ($level{$topic} eq 'Obsolete') {
220 $flags = sprintf("%-2s", $flags);
221 $out .= ".L \"$topic $flags\"\n";
222 $out .= "$desc{$topic}\n";
225 unless ($any_topic) {
226 print STDERR "$0: Subject $subj has no topics\n";
231 . "For info on a particular subject, type \"info <subject>\" where <subject> is\n"
232 . "one of the subjects listed above.\n";
233 $out .= "Subjects marked by * are the most important and should be read by new players.\n"
235 $out .= "Subjects marked by + are obsolete.\n"
237 $out .= "Unusually long subjects are marked with a !.\n"
240 return if (same_contents($fname, $out));
241 open(SUBJ, ">$fname")
242 or die "Can't open $fname for writing: $!";
248 my ($fname, $contents) = @_;
251 if (!open(SUBJ, "<$fname")) {
252 return 0 if ($!{ENOENT});
253 die "Can't open $fname for reading: $!";
257 return $contents eq $old;
260 # Print an integrity error message and exit with code 1
264 print STDERR "mksubj.pl:$filename:$.: $error\n";