Re: How to parse zsh history

[Ahmad Ismail <ismail783@gmail.com>]

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My current solution is:
....
skim-history() {
  origquery=${BUFFER}
  # output=$(history 1 -1 | sd '^[ ]*[0-9]*[ ]*' '' | sk --tac --no-sort
--exact)
  # output=$(fc -ln 1 -1 | sk --tac --no-sort --exact)
  num=$(fc -l 1 -1 | sk --tac --no-sort --exact | rg -o '^[ ]*([0-9]*)[ ]*'
-r '$1')

 if [ -n "$num" ]; then
    BUFFER=$(fc -ln $num $num)
  else
    BUFFER=$origquery
  fi

  # CURSOR=$#BUFFER
  # zle redisplay
}

zle     -N   skim-history
bindkey '^R' skim-history
....

Please let me know how can i make it better.

On Thu, Jul 7, 2022 at 12:40 PM Ahmad Ismail <ismail783@gmail.com> wrote:

> The way fzf do it is
>
> ....
> fzf-history-widget() {
>   local selected num
>   setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2>
> /dev/null
>   selected=( $(fc -rl 1 | perl -ne 'print if
> !$seen{(/^\s*[0-9]+\**\s+(.*)/, $1)}++' |
>     FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS
> -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore
> $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
>   local ret=$?
>   if [ -n "$selected" ]; then
>     num=$selected[1]
>     if [ -n "$num" ]; then
>       zle vi-fetch-history -n $num
>     fi
>   fi
>   zle reset-prompt
>   return $ret
> }
> zle     -N            fzf-history-widget
> bindkey -M emacs '^R' fzf-history-widget
> bindkey -M vicmd '^R' fzf-history-widget
> bindkey -M viins '^R' fzf-history-widget
> ....
>
> but I want to do it with skim instead of fzf.
>
> On Thu, Jul 7, 2022 at 11:56 AM Ahmad Ismail <ismail783@gmail.com> wrote:
>
>> My history file looks like:
>>
>> ....
>> : 1656846180:0;mint-vm
>> : 1657092275:4;g d fpull
>> : 1657092331:0;stow-dotfiles
>> : 1657092447:0;fd --hidden --ignore-file .gitignore
>> --base-directory="$HOME/.dotfiles/.common-dotfiles-buggy-nemo-bookmarks"
>> --type l --type f | sd ^. $HOME | xargs -I{} rm {}\
>>
>> : 1657092530:0;fd --hidden
>> --base-directory="$HOME/.dotfiles/.common-dotfiles-buggy-nemo-bookmarks"
>> --type l --type f | sd ^. $HOME | xargs -I{} rm {}\
>> stow --target="$HOME" --dir="$HOME/.dotfiles" --no-folding --restow
>> .common-dotfiles-buggy-nemo-bookmarks\
>>
>> : 1657092737:0;for i in "${array[@]}"\
>> do\
>>  \
>>  DOWNLOAD_URL=$(curl -Lfs ${i} | grep -m1 -Po '(?<=href=")[^"]*zip')\
>>  FILE_NAME=$(echo $DOWNLOAD_URL | grep -Eo "([^\/]+$)")\
>>  \
>>  wget $DOWNLOAD_URL\
>>  \
>> \
>> done
>> : 1657092752:15;array=(
>> https://cinnamon-spices.linuxmint.com/applets/view/83\
>>  https://cinnamon-spices.linuxmint.com/applets/view/106\
>>  https://cinnamon-spices.linuxmint.com/applets/view/222\
>>  https://cinnamon-spices.linuxmint.com/applets/view/238\
>>  https://cinnamon-spices.linuxmint.com/applets/view/284\
>> https://cinnamon-spices.linuxmint.com/applets/view/303 )\
>> \
>> for i in "${array[@]}"\
>> do\
>>  \
>>  DOWNLOAD_URL=$(curl -Lfs ${i} | grep -m1 -Po '(?<=href=")[^"]*zip')\
>>  FILE_NAME=$(echo $DOWNLOAD_URL | grep -Eo "([^\/]+$)")\
>>  \
>>  wget $DOWNLOAD_URL\
>>  \
>> \
>> done
>> ....
>>
>> I am working on a widget for fuzzy search history.
>>
>> ....
>> skim-history() {
>>   origquery=${BUFFER}
>>   output=$(history -1 1 | sd '^[ ]*[0-9]*[ ]*' '' | sk --tac --no-sort
>> --exact)
>>
>>   if [ $? -eq 0 ]; then
>>     BUFFER=$output
>>   else
>>     BUFFER=$origquery
>>   fi
>>
>>   CURSOR=$#BUFFER
>> }
>>
>> zle     -N   skim-history
>> bindkey '^R' skim-history
>> ....
>>
>> In `history -1 1 | sd '^[ ]*[0-9]*[ ]*' '' | sk --tac --no-sort --exact`,
>> sd is used instead of sed, which just removes numbers from the beginning.
>> However, it messes things up if the command is multi-line.
>>
>> What I found is, the only way zsh history parsing works correctly is if I
>> use something like !NUM, to get the history. How can I edit my zle
>> extension to do that?
>>
>> Another option is (if previous fails), do not save multi line commands in
>> history. How can I do that?
>>
>>
>>
>>
>>
>>

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