Wrapping it in double quotes causes it to output, and seems like a better
solution than using eval.
Thanks all!
On Wed, Sep 18, 2019 at 5:43 AM Gerald Richter - ECOS Technology <
gerald.rich...@ecos.de> wrote:
> What is happing if you write "$LETTERS{$letter}", i.e. us quotes instead
> of eval?
>
>
>
> Regards
>
>
>
> Gerald
>
>
>
> *Von:* Chuck Zumbrun [mailto:chuck.zumb...@gmail.com]
> *Gesendet:* Dienstag, 17. September 2019 17:22
> *An:* embperl@perl.apache.org
> *Betreff:* embPerl and Readonly module issue
>
>
>
> Using embPerl 2.5.0, porting an application from Ubuntu 12.04, perl 5.14,
> Readonly 2.0.0 to Ubuntu 18.04, perl 5.26, Readonly 2.05
>
>
>
> If I have a Readonly hash like this:
>
>
>
> [-
> use Readonly;
>
> Readonly our %LETTERS => {
> "A" => "Letter A",
> "B" => "Letter B",
> "C" => "Letter C"
> }
> -]
>
>
> and I try to use it like this:
>
>
> [$ foreach $letter (keys %LETTERS) $]
> [+ $LETTERS{$letter} +]
> [$ endforeach $]
>
>
>
> That works with the older versions and doesn't with the newer. With the
> newer version nothing is output. If I do something to force it to be
> evaluated, like:
>
>
>
> [$ foreach $letter (keys %LETTERS) $]
> [+ eval { $LETTERS{$letter} } +]
> [$ endforeach $]
>
>
>
> It does output "LETTER A", etc. in both versions.
>
>
>
> Any explanation of what's happening or suggestions on how to best deal
> with it?
>
>
>
>
>
>
>
>
> --
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