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/cvs/deliantra/server/ext/help.ext
Revision: 1.21
Committed: Tue Nov 20 14:40:01 2012 UTC (11 years, 6 months ago) by root
Branch: MAIN
Changes since 1.20: +8 -14 lines
Log Message:
better

File Contents

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