perl require

[bob]

Is it possible to dynamically change the location of a module
i.e.
require Plugins::Wetherbys::Generate::GenerateXML;
Plugins::Wetherbys::Generate::GenerateXML->import('help');

works fine

but ideally

i would like

require Plugins::$VAR::Generate::GenerateXML;
Plugins::Wetherbys::$VAR::GenerateXML->import('help');

I have looked through the FAQs and couldn't find anything.
I know you can do require $VAR;

Cheers

 

[Anno Siegel]

Is it possible to dynamically change the location of a module
i.e.
require Plugins::Wetherbys::Generate::GenerateXML;
Plugins::Wetherbys::Generate::GenerateXML->import('help');

works fine

but ideally

i would like

require Plugins::$VAR::Generate::GenerateXML;
Plugins::Wetherbys::$VAR::GenerateXML->import('help');

Your original example has the same string twice. These two lines
can never be the same string, no matter what $VAR contains. I'll
assume you meant

require Plugins::$VAR::Generate::GenerateXML;
Plugins::$VAR::Generate::GenerateXML->import( 'help');

I have looked through the FAQs and couldn't find anything.
I know you can do require $VAR;

You can even do "require EXPRESSION", but the problem is that "require"
in that form expects a file name and the method call needs a class name.
You won't be able to do this with a single variable, but this should work
(untested):

my $VAR = 'Wetherbys';
my $class = "Plugins::$VAR::Generate::GenerateXML";
( my $module = $class) =~ s{::}{/}g; # File::Spec would be better
$module .= '.pm'; # File::Spec would be better
require $module;
$class->import('help');

This mess may be best stuffed into a sub and taken out of sight.

Anno

 

[bob]

cheers ill give it a try.

Your original example has the same string twice. These two lines
can never be the same string, no matter what $VAR contains. I'll
assume you meant

require Plugins::$VAR::Generate::GenerateXML;
Plugins::$VAR::Generate::GenerateXML->import( 'help');


You can even do "require EXPRESSION", but the problem is that "require"
in that form expects a file name and the method call needs a class name.
You won't be able to do this with a single variable, but this should work
(untested):

my $VAR = 'Wetherbys';
my $class = "Plugins::$VAR::Generate::GenerateXML";
( my $module = $class) =~ s{::}{/}g; # File::Spec would be better
$module .= '.pm'; # File::Spec would be better
require $module;
$class->import('help');

This mess may be best stuffed into a sub and taken out of sight.

Anno

 

[GreenLight]

Is it possible to dynamically change the location of a module
i.e.
require Plugins::Wetherbys::Generate::GenerateXML;
Plugins::Wetherbys::Generate::GenerateXML->import('help');

works fine

but ideally

i would like

require Plugins::$VAR::Generate::GenerateXML;
Plugins::Wetherbys::$VAR::GenerateXML->import('help');

I have looked through the FAQs and couldn't find anything.
I know you can do require $VAR;

Cheers

perldoc LIB

 

[Brian McCauley]

my $VAR = 'Wetherbys';
my $class = "Plugins::$VAR::Generate::GenerateXML";
( my $module = $class) =~ s{::}{/}g; # File::Spec would be better
$module .= '.pm'; # File::Spec would be better
require $module;
$class->import('help');

This mess may be best stuffed into a sub and taken out of sight.

There is UNIVERSAL::require but I'm not too happy with the fact that
it doesn't re-throw errors.

--
\\ ( )
. _\\__[oo
.__/ \\ /\@
. l___\\
# ll l\\
###LL LL\\