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pbot/lib/PBot/Core/Commands/Func.pm
2023-04-13 21:04:12 -07:00

53 lines
1.5 KiB
Perl

# File: Func.pm
#
# 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 $args to be safely
# used in the URL of this simple Google Image Search factoid command.
# SPDX-FileCopyrightText: 2020-2023 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Core::Commands::Func;
use parent 'PBot::Core::Class';
use PBot::Imports;
sub initialize($self, %conf) {
$self->{pbot}->{commands}->register(sub { $self->cmd_func(@_) }, 'func', 0);
}
sub cmd_func($self, $context) {
my $func = $self->{pbot}->{interpreter}->shift_arg($context->{arglist});
if (not defined $func) {
return "Usage: func <keyword> [arguments]; see also: func help";
}
if (not exists $self->{pbot}->{functions}->{funcs}->{$func}) {
return "[No such func '$func']"
}
my @params;
while (defined(my $param = $self->{pbot}->{interpreter}->shift_arg($context->{arglist}))) {
push @params, $param;
}
my $result = $self->{pbot}->{functions}->{funcs}->{$func}->{subref}->(@params);
$result =~ s/\x1/1/g; # strip CTCP code
return $result;
}
1;