It seems that zle send-break commits to history the content of PREBUFFER
when used from PS2, does this makes sense?
I replicated it with:

echo abc\<enter>
> def<ctrl-G>

now the first item in the history is:
: 1630178520:0;E qwe\

this is wrong, due to the \ at the end of the row that will make the
subsequent row treated as part of a multi-line construct but it is not,
only the first line has been inserted in the history. in my case the
following line in .zsh_history is:
: 1630178638:0;tail -n 1 ~/.zsh_history

if I insert more lines before pressing ctrl-g just the last one is missing:

echo ab\<enter>
> bc\<enter>
> de<ctrl-G>

tail -n 3 zsh-history
: 1630178860:0;echo ab\\
bc\
: 1630178870:0;tail -n 3 ~/.zsh_history

this may be due to my very old zsh (5.1.1)

Pier Paolo Grassi


Il giorno ven 27 ago 2021 alle ore 23:59 Bart Schaefer <
schaefer@brasslantern.com> ha scritto:

> On Fri, Aug 27, 2021 at 2:15 PM Pier Paolo Grassi <pierpaolog@gmail.com>
> wrote:
> >
> > the send-break widget returns a status code 1, and since I have a precmd
> that displays the last status code, I was wondering if it is in some way
> possibile to suppress that return status.
>
> The short answer is no, there is not.  There was a long thread about
> this on zsh-workers earlier this year, search "curious incident of the
> feep".
>
> As written your widget discards multi-line structures if invoked at
> the PS2 prompt.  If that's intentional you can replace with:
>
> commit_to_history() {
>   print -rs -- ${(q)${(z)BUFFER}}
>   BUFFER=''
>   if [[ -n $PREBUFFER ]]
>   then zle accept-line
>   else zle send-break
>   fi
> }
>
> If you would prefer to capture multi-line structure at PS2,
>
> commit_to_history() {
>   local fullbuffer="$PREBUFFER$BUFFER"
>   print -rs -- ${(q)${(z)fullbuffer}}
>   BUFFER=''
>   if [[ -n $PREBUFFER ]]
>   then zle accept-line
>   else zle send-break
>   fi
> }
>