Re: Optioanlly installing YAML and YAML::Syck

Ron Savage wrote:
> Because of this curiosity:
> 
> ron@zoe:~/perl.modules$ perl -MCPAN -e 'install YAML'
> Can't locate object method "install" via package "YAML" at -e line 1.
> ron@zoe:~/perl.modules$ perl -MCPAN -e 'install YAML::Syck'
> Can't locate object method "install" via package "YAML::Syck" at -e line
> 1.
> ron@zoe:~/perl.modules$ perl -MCPAN -e 'install CPAN::Mini'
> CPAN: File::HomeDir loaded ok (v0.66)
> ...etc...
> 
> it's not clear to me how to optionally install YAML and YAML::Syck after
> asking the user if they want to. Or are these modules designed
> deliberately to disallow that?

You're running into the ambiguity surrounding indirect object syntax, has 
nothing to do with CPAN.pm.

$ perl -wle 'foo Bar'
Can't locate object method "foo" via package "Bar" (perhaps you forgot to load 
"Bar"?) at -e line 1.

Perl thinks you're saying Bar->foo().  Use a + to disambiguate:

$ perl -MCPAN -e 'install +YAML'
CPAN: File::HomeDir loaded ok (v0.69)
...

Or use the cpan script:

$ cpan YAML
CPAN: File::HomeDir loaded ok (v0.69)
...


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