Global symbol "$EVAL_ERROR" requires explicit package name

[Cev Ing]

When I try the example from the synopsis of Scanless::R, I get the error

Global symbol "$EVAL_ERROR" requires explicit package name

https://metacpan.org/pod/distribution/Marpa-R2/pod/Scanless/R.pod#Synopsis

Is it necessary to import the variable from a Marpa package?

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Re: Global symbol "$EVAL_ERROR" requires explicit package name

[Jeffrey Kegler]

Also, one feature of Marpa is that *all* examples of code are in the test
suite -- so they all do actually run in some context.

The one for the Scanless::R synopsis is in t/sl_gyn.t.  Note that, in the
test suite, the context may be some intricate framework required by the
testing, but it nonetheless will be a context in which the example was made
to work.

On Thu, Nov 26, 2015 at 8:11 AM, Ruslan Shvedov <ruslan.shve...@gmail.com>
wrote:

>
>
> On Thu, Nov 26, 2015 at 6:02 PM, Cev Ing <cev...@gmail.com> wrote:
>
>> When I try the example from the synopsis of Scanless::R, I get the error
>>
>> Global symbol "$EVAL_ERROR" requires explicit package name
>>
>> https://metacpan.org/pod/distribution/Marpa-R2/pod/Scanless/R.pod#Synopsis
>>
>> Is it necessary to import the variable from a Marpa package?
>>
> Nope, you an add use English; -- it's a long name for eval's return value.
>
> But then you'll have to add the grammar and input string.
>
> If you need a full runnable example, the code from
> https://metacpan.org/pod/distribution/Marpa-R2/pod/Scanless.pod#Synopsis
> will serve you better.
>
>
>>
>> --
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>
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Re: Global symbol "$EVAL_ERROR" requires explicit package name

[Cev Ing]

Am Donnerstag, 26. November 2015 17:12:10 UTC+1 schrieb rns:
>
>
> Nope, you an add use English; -- it's a long name for eval's return value.
>

Ah thanks I got it. Never used the English packages.
 

> If you need a full runnable example, the code from 
> https://metacpan.org/pod/distribution/Marpa-R2/pod/Scanless.pod#Synopsis 
> will serve you better.
>

I was looking for an example with actions. The example of Scannless just 
blesses and traverses the blessed objects.

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Re: Global symbol "$EVAL_ERROR" requires explicit package name

[Ruslan Shvedov]

On Thu, Nov 26, 2015 at 6:51 PM, Cev Ing  wrote:

>
>
> Am Donnerstag, 26. November 2015 17:12:10 UTC+1 schrieb rns:
>>
>>
>> Nope, you an add use English; -- it's a long name for eval's return value.
>>
>
> Ah thanks I got it. Never used the English packages.
>
>
>> If you need a full runnable example, the code from
>> https://metacpan.org/pod/distribution/Marpa-R2/pod/Scanless.pod#Synopsis
>> will serve you better.
>>
>
> I was looking for an example with actions. The example of Scannless just
> blesses and traverses the blessed objects.
>
Then, per Jeffrey's advice, you can adapt code from
https://github.com/jeffreykegler/Marpa--R2/blob/master/cpan/t/sl_gsyn.t


>
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