forked from 0ad/0ad
126 lines
3.1 KiB
Perl
126 lines
3.1 KiB
Perl
package Entity;
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use strict;
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use warnings;
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use XML::Parser;
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use Data::Dumper;
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use File::Find;
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my $vfsroot = '../../../binaries/data/mods';
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sub get_file
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{
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my ($vfspath) = @_;
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my $fn = "$vfsroot/public/simulation/templates/$vfspath.xml";
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if (not -e $fn) {
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$fn = "$vfsroot/internal/simulation/templates/$vfspath.xml";
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}
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open my $f, $fn or die "Error loading $fn: $!";
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local $/;
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return <$f>;
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}
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sub trim
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{
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my ($t) = @_;
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return '' if not defined $t;
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$t =~ /^\s*(.*?)\s*$/s;
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return $1;
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}
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sub load_xml
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{
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my ($file) = @_;
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my $root = {};
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my @stack = ($root);
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my $p = new XML::Parser(Handlers => {
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Start => sub {
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my ($e, $n, %a) = @_;
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my $t = {};
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die "Duplicate child node '$n'" if exists $stack[-1]{$n};
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$stack[-1]{$n} = $t;
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for (keys %a) {
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$t->{'@'.$_}{' content'} = trim($a{$_});
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}
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push @stack, $t;
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},
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End => sub {
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my ($e, $n) = @_;
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$stack[-1]{' content'} = trim($stack[-1]{' content'});
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pop @stack;
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},
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Char => sub {
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my ($e, $str) = @_;
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$stack[-1]{' content'} .= $str;
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},
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});
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$p->parse($file);
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return $root;
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}
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sub apply_layer
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{
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my ($base, $new) = @_;
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if ($new->{'@datatype'} and $new->{'@datatype'}{' content'} eq 'tokens') {
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my @old = split /\s+/, ($base->{' content'} || '');
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my @new = split /\s+/, ($new->{' content'} || '');
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my @t = @old;
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for my $n (@new) {
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if ($n =~ /^-(.*)/) {
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@t = grep $_ ne $1, @t;
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} else {
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push @t, $n if not grep $_ eq $n, @t;
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}
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}
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$base->{' content'} = join ' ', @t;
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} else {
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$base->{' content'} = $new->{' content'};
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}
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for my $k (grep $_ ne ' content', keys %$new) {
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if ($new->{$k}{'@disable'}) {
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delete $base->{$k};
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} else {
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if ($new->{$k}{'@replace'}) {
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delete $base->{$k};
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}
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$base->{$k} ||= {};
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apply_layer($base->{$k}, $new->{$k});
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delete $base->{$k}{'@replace'};
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}
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}
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}
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sub load_inherited
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{
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my ($vfspath) = @_;
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my $layer = load_xml(get_file($vfspath));
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if ($layer->{Entity}{'@parent'}) {
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my $parent = load_inherited($layer->{Entity}{'@parent'}{' content'});
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apply_layer($parent->{Entity}, $layer->{Entity});
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return $parent;
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} else {
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return $layer;
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}
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}
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sub find_entities
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{
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my @files;
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my $find_process = sub {
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return $File::Find::prune = 1 if $_ eq '.svn';
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my $n = $File::Find::name;
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return if /~$/;
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return unless -f $_;
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$n =~ s~\Q$vfsroot\E/(public|internal)/simulation/templates/~~;
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$n =~ s/\.xml$//;
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push @files, $n;
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};
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find({ wanted => $find_process }, "$vfsroot/public/simulation/templates");
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find({ wanted => $find_process }, "$vfsroot/internal/simulation/templates") if -e "$vfsroot/internal";
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return @files;
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}
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