empserver/info/mksubj.pl

152 lines
4.1 KiB
Perl

#!/usr/bin/perl
#
# Empire - A multi-player, client/server Internet based war game.
# Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
# Ken Stevens, Steve McClure
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# ---
#
# See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
# related information and legal notices. It is expected that any future
# projects/authors will amend these files as needed.
#
# ---
#
# mksubj.pl: Create the index for a subject
#
# Known contributors to this file:
# Ken Stevens (when it was still info.pl)
# Markus Armbruster, 2006
#
# Usage: mksubj.pl OUTFILE INFILE...
# The INFILE... contain all the topics belonging to a subject. Read
# and check the information required for the index from them, write
# the index to OUTFILE.
use strict;
use warnings;
# The chapters, in order
our @Chapters = qw/Introduction Concept Command Server/;
our $filename;
my (%subject, %level, %desc);
my $largest = "";
my $out = shift @ARGV;
$out =~ /([^\/]*)\.t$/
or die "Strange subject file name $out";
my $subj = $1;
for (@ARGV) {
my ($topic, $chap, $lvl, $desc) = parse_file($_);
$largest = $topic if length $topic > length $largest;
$subject{$chap} .= "$topic\n";
$level{$topic} = $lvl;
$desc{$topic} = $desc;
}
open(SUBJ, ">$out")
or die "Can't open $out for writing: $!";
print SUBJ '.\" DO NOT EDIT THIS FILE. It was automatically generated by mksubj.pl'."\n";
print SUBJ ".TH Subject \U$subj\n";
$largest =~ s/-/M/g;
print SUBJ ".in \\w'$largest", "XX\\0\\0\\0\\0'u\n";
for my $chap (@Chapters) {
next unless exists $subject{$chap};
print SUBJ ".s1\n";
for (split(/\n/, $subject{$chap})) {
print SUBJ ".L \"$_ ";
if ($level{$_} eq 'Basic') {
print SUBJ "* \"\n";
} else {
print SUBJ " \"\n";
}
print SUBJ "$desc{$_}\n";
}
}
print SUBJ <<EOF;
.s1
.in 0
For info on a particular subject, type "info <subject>" where <subject> is
one of the subjects listed above. Subjects marked by * are the most
important and should be read by new players.
EOF
close SUBJ;
# Check .TH, .NA, .LV and .SA.
# Parse .NA into %desc and .SA into %see_also
sub parse_file {
($filename) = @_;
my ($topic, $chap, $lvl, $desc);
$topic = $filename;
$topic =~ s,.*/([^/]*)\.t$,$1,;
open(F, "<$filename")
or die "Can't open $filename: $!";
$_ = <F>;
if (/^\.TH (\S+) (\S.+\S)$/) {
if (!grep(/^$1$/, @Chapters)) {
error("First argument to .TH was '$1', which is not a known chapter");
}
$chap = $1;
if ($1 eq "Command" && $2 ne "\U$topic") {
error("Second argument to .TH was '$2' but it should be '\U$topic'");
}
} else {
error("The first line in the file must be a .TH request");
}
$_ = <F>;
if (/^\.NA (\S+) "(\S.+\S)"$/) {
if ($topic ne $1) {
error("First argument to .NA was '$1' but it should be '$topic'");
}
$desc = $2;
} else {
error("The second line in the file must be a .NA request");
}
$_ = <F>;
if (/^\.LV (\S+)$/) {
if ($1 ne 'Basic' && $1 ne 'Expert') {
error("The argument to .LV was '$1' but it must be either 'Basic' or 'Expert'");
}
$lvl = $1;
} else {
error("The third line in the file must be a .LV request");
}
close F;
return ($topic, $chap, $lvl, $desc);
}
# Print an integrity error message and exit with code 1
sub error {
my ($error) = @_;
print STDERR "info.pl:$filename:$.: $error\n";
exit 1;
}