Read/write multiple histories from non-interactive shell

[OG Code Poet <ogcodepoet@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 964 bytes --]

Let's say there is a non-interactive script with multiple form fields (each
with a different vared), and a user can enter the form multiple times. I
want to preserve individual history for each form field.

There are two possibilities:

1. Keep history internal to the script
        I couldn't find an interface for this. Doing ``fc -p`` once in the
beginning of script does provide an internal history, but it is shared
between all vareds (which is not ideal).
2. Keep history external to the script
        Not all ``fc`` commands work. ``fc -R`` does read correctly from
external history files. But ``print -s``, ``fc-W`` and ``fc -A`` do not.
Seems the only option is to do an echo "$string"
>>~/path//form_entry_1.hist file. But I guess that has disadvantages
because it lacks the benefits that zsh provides in resolving duplicates.

Is there a way out? Should this also be copied to zsh-workers for feature
request?

Thanks!

P.S. I can be slow to respond.

[-- Attachment #2: Type: text/html, Size: 1187 bytes --]