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/cvs/deliantra/server/ext/help.ext
Revision: 1.18
Committed: Fri Nov 9 20:37:57 2012 UTC (11 years, 6 months ago) by root
Branch: MAIN
Changes since 1.17: +75 -2 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #! perl # mandatory depends=doclet
2
3 our $TOPIC;
4 our %DOCLET;
5
6 our $HELP_CHANNEL = {
7 id => "help",
8 title => "Help",
9 reply => "help ",
10 tooltip => "Online Help",
11 };
12
13 # considerable duplication between load_doclets and load_topics
14 sub load_doclets {
15 %DOCLET = ();
16
17 my @command_list;
18
19 for (
20 [0, "command_help"],
21 [1, "emote_help"],
22 [2, "dmcommand_help"],
23 ) {
24 my ($type, $path) = @$_;
25
26 my $paragraphs = cf::pod::load_pod "$PODDIR/$path.pod"
27 or die "unable to load $path";
28
29 my $level = 1e9;
30 my $rpar;
31
32 for my $par (@$paragraphs) {
33 if ($par->{type} eq "head2") {
34 # this code taken almost verbatim from DC/Protocol.pm
35
36 if ($par->{markup} =~ /^(\S+) (?:\s+ \( ([^\)]*) \) )?/x) {
37 my $cmd = $1;
38 my @args = split /\|/, $2;
39 @args = (".*") unless @args;
40
41 $_ = $_ eq ".*" ? "" : " $_"
42 for @args;
43
44 my @variants = map "$cmd$_", sort { (length $a) <=> (length $b) } @args;
45
46 $rpar = \($DOCLET{$cmd} = &cf::pod::as_cfpod ([$par]));
47
48 push @command_list, [$type, \@variants];
49 $level = $par->{level};
50 } else {
51 cf::error "$par->{markup}: unparsable command heading";
52 }
53 } elsif ($par->{level} > $level) {
54 $$rpar .= &cf::pod::as_cfpod ([$par]);
55 }
56
57 cf::cede_to_tick;
58 }
59 }
60
61 @command_list = sort {
62 $a->[0] <=> $b->[0]
63 or $a->[1] cmp $b->[1]
64 } @command_list;
65
66 cf::cede_to_tick;
67
68 cf::set_face "res/command_list" => cf::FT_RSRC,
69 JSON::XS->new->utf8->encode (\@command_list);
70 }
71
72 our $DOCLET_HANDLER = ext::doclet::register command => sub {
73 my ($pl, $category, $command) = @_;
74
75 my $guard = cf::lock_acquire "ext::help::loading";
76
77 $DOCLET{$command}
78 || "B<No documentation available for '$category/$command'>"
79 };
80
81 sub load_topics($$) {
82 my ($type, $path) = @_;
83
84 my $paragraphs = cf::pod::load_pod "$PODDIR/$path.pod"
85 or die "unable to load $path";
86
87 my @topics;
88 my $level = 1e9;
89
90 for my $par (@$paragraphs) {
91 cf::cede_to_tick;
92 if ($par->{type} eq "head2") {
93 if ($par->{markup} =~ /^(\S+)/) {
94 push @topics, $1 => [$type => $par];
95 $level = $par->{level};
96 }
97 } elsif ($par->{level} > $level) {
98 push @{ $topics[-1] }, $par;
99 }
100 }
101
102 @topics
103 }
104
105 sub reload() {
106 my $guard1 = cf::lock_acquire "ext::help::loading";
107 my $guard2 = cf::lock_acquire "ext::resource";
108
109 local $Coro::current->{desc} = "help loader";
110
111 $TOPIC = {
112 (load_topics "DM Commands" => "dmcommand_help"),
113 (load_topics "Emotes" => "emote_help"),
114 (load_topics "Commands" => "command_help"),
115 (load_topics "Generic Help Topics" => "generic_help"),
116 };
117
118 load_doclets;
119
120 ()
121 }
122
123 cf::post_init {
124 cf::async_ext { reload };
125 Coro::cede; # make sure reload acquires the lock(s)
126 };
127
128 cf::register_command help => sub {
129 my ($pl, $topic) = @_;
130
131 if (cf::lock_active "ext::help::loading") {
132 $pl->send_msg ($HELP_CHANNEL => "help files are being loaded currently, try again in a few seconds.", cf::NDI_REPLY | cf::NDI_CLEAR);
133 return;
134 }
135
136 $topic = $1 if $topic =~ /(\S+)/;
137
138 if (!length $topic) {
139 # sort..
140
141 my %topics;
142 while (my ($k, $v) = each %$TOPIC) {
143 push @{$topics{$v->[0]}}, $k;
144 }
145
146 my $res;
147 while (my ($k, $v) = each %topics) {
148 $res .= "T<$k:>\n\n" . (join " ", sort @$v) . "\n\n";
149 }
150
151 $pl->send_msg ($HELP_CHANNEL => $res, cf::NDI_REPLY | cf::NDI_CLEAR);
152
153 } elsif (my $item = $TOPIC->{$topic}) {
154 my ($type, @pars) = @$item;
155 $pl->send_msg ($HELP_CHANNEL => (cf::pod::as_cfpod \@pars), cf::NDI_REPLY | cf::NDI_CLEAR);
156
157 } else {
158 $pl->send_msg ($HELP_CHANNEL => "'$topic' no such help topic, try just 'help' to get a list of topics.", cf::NDI_REPLY);
159 }
160 };
161