The provided Perl code appears to be creating a hash reference ($w
) and initializing it with a combination of data from another hash reference ($a->{b}
) and additional key-value pairs.
Let's break down the code:
$w = { %($a->{b}), gl => { doc => [["w" => "$abc/path"]], imp => [] } };
-
$w
: This is the variable being assigned. It is a reference to a hash. In Perl,{}
is used to create an anonymous hash reference. -
%($a->{b})
: This part involves copying the key-value pairs from the hash reference$a->{b}
into the new hash referenced by$w
. The%{...}
syntax is used to dereference the hash. The%
symbol is used to copy the elements from one hash to another. -
,
: This comma separates the copied key-value pairs from the additional key-value pairs that will be added to the hash. -
gl => { doc => [["w" => "$abc/path"]], imp => [] }
: This part adds a new key-value pair to the hash. The key is "gl", and its associated value is another hash reference. This nested hash has two keys: "doc" and "imp".-
"doc" => [["w" => "$abc/path"]]
: This key-value pair associates the key "doc" with an array reference containing a single element, which is itself an array reference. This innermost array reference contains two elements, "w" and "$abc/path". -
"imp" => []
: This key-value pair associates the key "imp" with an empty array reference.
-
In summary, the code creates a new hash reference $w
by combining the key-value pairs from $a->{b}
with additional key-value pairs under the key "gl". The resulting structure is a nested hash containing information copied from $a->{b}
and new data under the "gl" key.
Here's the equivalent Python code for the given Perl code:
w = {**a['b'], 'gl': {'doc': [['w', f'{abc}/path']], 'imp': []}}
In Python, you can use the {**dict1, **dict2}
syntax to merge dictionaries. This is used to combine the key-value pairs from a['b']
into a new dictionary referenced by w
. The additional key-value pairs are then added for the "gl" key, creating the nested structure similar to the Perl code. Note that in Python, f-strings are used for string interpolation, and {abc}
is assumed to be a variable containing the value of $abc
in the Perl code.