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From: ZyX <zyx.vim@gmail.com>
Reply-To: zyx.vim@gmail.com
To: zsh-workers@zsh.org
Subject: Re: CTRL-O in vi mode
Date: Wed, 17 Nov 2010 00:04:23 +0300
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Reply to message =ABCTRL-O in vi mode=BB,=20
sent 23:32:05 16 November 2010, Tuesday
by Bernd Strohhaecker:

> I'm using vi mode. Is it possible in viins mode to realize Vim's CTRL-O
> command, e.g. execute one vicmd command and then return to viins mode?
Of course, it is. I do use emacs mode but have lots of custom mappings and =
<C-o>
is one of them:

    function _-vi-digit-arg
    {
        emulate -LR zsh
        [[ -z "${NUMERIC}" ]] && NUMERIC=3D0
        [[ -z "$1" ]] && num=3D0 || num=3D$(( $1 ))
        shift
        (( NUMERIC=3DNUMERIC*10+num )) && $@
    }
    function _-repeat-for-key
    {
        emulate -LR zsh
        local key
        read -k key
        local -i OLDLLEN=3D${#LBUFFER} OLDRLEN=3D${#RBUFFER}
        local OLDLBUFFER=3D"$LBUFFER" OLDRBUFFER=3D"$RBUFFER"
        (( NUMERIC )) || NUMERIC=3D1
        if ! [[ -z $2 ]] ; then
            eval $2
            (( NUMERIC-- ))
        fi
        while (( NUMERIC )) ; do
            eval $1
            (( NUMERIC-- ))
        done
        local -i LLEN=3D${#LBUFFER} RLEN=3D${#RBUFFER}
        if (( LLEN<OLDLLEN || RLEN<OLDRLEN )) ; then
            local KILLTEXT=3D"${OLDLBUFFER[LLEN+1,-1]}${OLDRBUFFER[1,OLDRLE=
N-RLEN]}"
            zle copy-region-as-kill "$KILLTEXT"
        fi
    }
    function _-vi-delete
    {
        emulate -LR zsh
        local key
        read -k key
        key=3D$(( #key ))
        if   (( key=3D=3D##t )) ; then
            _-repeat-for-key 'RBUFFER=3D${(S)RBUFFER/#$key*$key/$key}' \
                             'RBUFFER=3D${(S)RBUFFER/#*$key/$key}'
        elif (( key=3D=3D##T )) ; then
            _-repeat-for-key 'LBUFFER=3D${(S)LBUFFER/%$key*$key/$key}' \
                             'LBUFFER=3D${(S)LBUFFER/%$key*/$key}'
        elif (( key=3D=3D##f )) ; then _-repeat-for-key 'RBUFFER=3D${RBUFFE=
R#*$key}'
        elif (( key=3D=3D##F )) ; then _-repeat-for-key 'LBUFFER=3D${LBUFFE=
R%$key*}'
        elif (( key=3D=3D##d )) ; then zle kill-whole-line
        elif (( key=3D=3D##$ )) ; then zle kill-line
        elif (( key=3D=3D##\^ )); then zle backward-kill-line
        elif (( key=3D=3D##0 )) && [[ -z $NUMERIC ]] ;
                              then zle backward-kill-line
        elif (( key>=3D##0 && key<=3D##9 ))
                              then _-vi-digit-arg $(( key - ##0 )) _-vi-del=
ete
        fi
    }
    function _-vi-ctrl-o
    {
        emulate -LR zsh
        local keystr
        read -k keystr
        local -r keystr
        local -ri key=3D$(( #keystr ))
          if (( key=3D=3D##A )) ; then zle end-of-line
        elif (( key=3D=3D##$ )) ; then zle end-of-line
        elif (( key=3D=3D##I )) ; then zle vi-first-non-blank
        elif (( key=3D=3D##d )) ; then _-vi-delete
        elif (( key=3D=3D##0 )) && [[ -z $NUMERIC ]] ;
                              then zle beginning-of-line
        elif (( key>=3D##0 && key<=3D##9 ))
                              then _-vi-digit-arg $(( key - ##0 )) _-vi-ctr=
l-o
        #elif (( key=3D=3D##s )) ; then zle sedsubstitute
        #elif (( key=3D=3D##=3D )) ; then zle tailfor
        else
            zle ${${(z)$(bindkey -M vicmd $keystr)}[2]}
        fi
    }

    zle -N vi-ctrl-o                         _-vi-ctrl-o
    bindkey  -N evi    emacs
    bindkey  -A evi     main
    bindkey -rM evi    "\C-o"
    bindkey  -M evi    "\C-o"         "vi-ctrl-o"

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