132 lines
2.7 KiB
Perl
132 lines
2.7 KiB
Perl
# Auto IRC Bot. An advanced, lightweight and powerful IRC bot.
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# Copyright (C) 2010-2011 Xelhua Development Team (doc/CREDITS)
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# This program is free software; rights to this code are stated in doc/LICENSE.
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package m_Calc;
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use strict;
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use warnings;
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use API::Std qw(cmd_add cmd_del);
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use API::IRC qw(privmsg);
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use LWP::UserAgent;
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use URI::Escape;
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use JSON -support_by_pp;
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# Initialization subroutine.
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sub _init
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{
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# Create the CALC command.
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cmd_add("CALC", 0, \%m_Calc::SHELP_CALC, \%m_Calc::FHELP_CALC, \&m_Calc::calc) or return 0;
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# Success.
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return 1;
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}
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# Void subroutine.
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sub _void
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{
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# Delete the CALC command.
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cmd_del("CALC") or return 0;
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# Success.
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return 1;
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}
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# Help hashes.
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our %SHELP_CALC = (
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'en' => "Calculate an expression.",
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);
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our %FHELP_CALC = (
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'en' => "This command will calculate an expression using Google Calculator. Syntax: CALC <expression>",
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);
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# Callback for CALC command.
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sub calc
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{
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my (%data) = @_;
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# Create an instance of LWP::UserAgent.
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my $ua = LWP::UserAgent->new();
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$ua->agent('Auto IRC Bot');
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$ua->timeout(2);
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# Create an instance of JSON.
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my $json = JSON->new();
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# Put together the call to the Google Calculator API.
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my @args = @{ $data{args} };
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my $expr = join(' ', @args);
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my $url = "http://www.google.com/ig/calculator?q=".uri_escape($expr);
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# Get the response via HTTP.
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my $response = $ua->get($url);
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if ($response->is_success) {
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# If successful, decode the content.
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my $d = $json->allow_nonref->utf8->relaxed->escape_slash->loose->allow_singlequote->allow_barekey->decode($response->decoded_content);
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if ($d->{error} eq "" or $d->{error} == 0) {
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# And send to channel
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privmsg($data{svr}, $data{chan}, "Result: ".$d->{lhs}." = ".$d->{rhs});
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}
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else {
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# Otherwise, send an error message.
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privmsg($data{svr}, $data{chan}, "Google Calculator sent an error.");
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}
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}
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else {
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# Otherwise, send an error message.
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privmsg($data{svr}, $data{chan}, "An error occurred while sending your expression to Google Calculator.");
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}
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return 1;
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}
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# Start initialization.
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API::Std::mod_init("Calc", "Xelhua", "1.00", "3.0d", __PACKAGE__);
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__END__
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=head1 Calc
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=head2 Description
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=over
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This module adds the CALC command for evaluating an expression using
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Google Calculator.
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=back
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=head2 How To Use
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=over
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Add Calc to the module autoload.
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=back
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=head2 Examples
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=over
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<JohnSmith> !calc 1+1
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<Auto> Result: 1+1 = 2
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=back
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=head2 To Do
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=over
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* Add Spanish, French and German translations for the help hashes.
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=back
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=head2 Technical
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=over
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This module requires LWP::UserAgent, URI::Escape and JSON. All are obtainable
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from the CPAN <http://www.cpan.org>.
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This module is compatible with Auto version 3.0a2+.
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=back
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