mirror of https://github.com/pragma-/pbot.git
108 lines
3.3 KiB
Perl
108 lines
3.3 KiB
Perl
|
|
# File: Functions.pm
|
|
# Author: pragma_
|
|
#
|
|
# Purpose: Special `func` command that executes built-in functions with
|
|
# optional arguments. Usage: func <identifier> [arguments].
|
|
#
|
|
# Intended usage is with command-substitution (&{}) or pipes (|{}).
|
|
#
|
|
# For example:
|
|
#
|
|
# factadd img /call echo https://google.com/search?q=&{func uri_escape $args}&tbm=isch
|
|
#
|
|
# The above would invoke the function 'uri_escape' on $args and then replace
|
|
# the command-substitution with the result, thus escaping $args to be safely
|
|
# used in the URL of this simple Google Image Search factoid command.
|
|
|
|
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
package PBot::Functions;
|
|
use parent 'PBot::Class';
|
|
|
|
use warnings; use strict;
|
|
use feature 'unicode_strings';
|
|
|
|
sub initialize {
|
|
my ($self, %conf) = @_;
|
|
$self->{pbot}->{commands}->register(sub { $self->do_func(@_) }, 'func', 0);
|
|
|
|
$self->register(
|
|
'help',
|
|
{
|
|
desc => 'provides help about a func',
|
|
usage => 'help [func]',
|
|
subref => sub { $self->func_help(@_) }
|
|
}
|
|
);
|
|
|
|
$self->register(
|
|
'list',
|
|
{
|
|
desc => 'lists available funcs',
|
|
usage => 'list [regex]',
|
|
subref => sub { $self->func_list(@_) }
|
|
}
|
|
);
|
|
}
|
|
|
|
sub register {
|
|
my ($self, $func, $data) = @_;
|
|
$self->{funcs}->{$func} = $data;
|
|
}
|
|
|
|
sub unregister {
|
|
my ($self, $func) = @_;
|
|
delete $self->{funcs}->{$func};
|
|
}
|
|
|
|
sub do_func {
|
|
my ($self, $from, $nick, $user, $host, $arguments, $stuff) = @_;
|
|
my $func = $self->{pbot}->{interpreter}->shift_arg($stuff->{arglist});
|
|
return "Usage: func <keyword> [arguments]; see also: func help" if not defined $func;
|
|
return "[No such func '$func']" if not exists $self->{funcs}->{$func};
|
|
|
|
my @params;
|
|
while (my $param = $self->{pbot}->{interpreter}->shift_arg($stuff->{arglist})) { push @params, $param; }
|
|
|
|
my $result = $self->{funcs}->{$func}->{subref}->(@params);
|
|
$result =~ s/\x1/1/g;
|
|
return $result;
|
|
}
|
|
|
|
sub func_help {
|
|
my ($self, $func) = @_;
|
|
return "func: invoke built-in functions; usage: func <keyword> [arguments]; to list available functions: func list [regex]" if not length $func;
|
|
return "No such func '$func'." if not exists $self->{funcs}->{$func};
|
|
return "$func: $self->{funcs}->{$func}->{desc}; usage: $self->{funcs}->{$func}->{usage}";
|
|
}
|
|
|
|
sub func_list {
|
|
my ($self, $regex) = @_;
|
|
$regex = '.*' if not defined $regex;
|
|
my $result = eval {
|
|
my $text = '';
|
|
foreach my $func (sort keys %{$self->{funcs}}) {
|
|
if ($func =~ m/$regex/i or $self->{funcs}->{$func}->{desc} =~ m/$regex/i) { $text .= "$func, "; }
|
|
}
|
|
|
|
$text =~ s/,\s+$//;
|
|
if (not length $text) {
|
|
if ($regex eq '.*') { $text = "No funcs yet."; }
|
|
else { $text = "No matching func."; }
|
|
}
|
|
return "Available funcs: $text; see also: func help <keyword>";
|
|
};
|
|
|
|
if ($@) {
|
|
my $error = $@;
|
|
$error =~ s/at PBot.Functions.*$//;
|
|
return "Error: $error\n";
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
1;
|