[LON-CAPA-dev] Extracting problems from page or sequence

[Jerf]

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H. K. Ng wrote:
| Two problems.
|
| 1.         my $parts = $curRes->parts();
|
| does not return anything?

Returns a reference to a list containing the parts.

On non-problems, it returns a reference to an empty list.

I am not aware of any problems with this, so please let me know if you
are still getting "nothing" back from ->parts(). (In perl, "nothing" is
an ambiguous term. "undef"? Empty list? etc.)
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