Re: Changing the way bash expands associative array subscripts

[Léa Gris]

Le 16/03/2021 à 01:12, Chet Ramey écrivait :

What do folks think?

What direction has taken zsh with expanding associative array indexes?





for key value in "${(kv)assoc_array}"; do
    printf '%s -> %s\n' "$key" "$value"
done

which is quite nicer than doing same in bash:

for key in "${!assoc_array[@]}"; do
    value="${assoc_array[$key]}"
    printf '%s -> %s\n' "$key" "$value"
done


I'd love there would be more convergence when this is possible.

--
Léa Gris

Please excuse my profanity of mentioning zsh in this list, but I really think features and behavior convergence can benefit end users in multiple ways, especially when expanding beyond the POSIX sh scope. I don't know zsh, but I remember in the past, some features have been aligned across shells, and it has proven especially helpful for clarity as an end-user when dealing with non-POSIX shell features zsh also provide a nice feature to iterate both keys and values in a single loop:

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