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From: Mikael Magnusson <mikachu@gmail.com>
Date: Thu, 20 Feb 2020 16:25:27 +0100
Message-ID: <CAHYJk3QujSp07HMqH2K=HPa7ECzDvRy7_V3T0aDRwnCYHixYUQ@mail.gmail.com>
Subject: Re: history expansion
To: Pier Paolo Grassi <pierpaolog@gmail.com>
Cc: Zsh-Users List <zsh-users@zsh.org>
Content-Type: text/plain; charset="UTF-8"

On 2/20/20, Pier Paolo Grassi <pierpaolog@gmail.com> wrote:
> something like an alias that could allow me to reuse history expandable
> expressions, such as !!, !:1, ^cdcd^cddcd and so on

If you make an alias like normal, but instead of pressing enter, press
^Xa (_expand_alias), it should do what you want. This could then be
extended with a custom widget bound to accept-line that checks if the
current input is one of your special history-aliases and expand it for
you before accepting the line, etc.
skeleton example of the latter,
zle -N accept-line accept-line-history-alias
accept-line-history-alias() {
  if [[ $BUFFER = histalias-* ]]; then
    zle _expand_alias
  fi
  zle .$WIDGET
}
if you go this route, you could also use a custom lookup assoc array
instead of using aliases.

-- 
Mikael Magnusson