chezmoi init
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371
dot_oh-my-zsh/plugins/zsh-navigation-tools/n-history
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371
dot_oh-my-zsh/plugins/zsh-navigation-tools/n-history
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# Copy this file into /usr/share/zsh/site-functions/
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# and add 'autoload n-history` to .zshrc
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#
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# This function allows to browse Z shell's history and use the
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# entries
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#
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# Uses n-list
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emulate -L zsh
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setopt extendedglob
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zmodload zsh/curses
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zmodload zsh/parameter
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local IFS="
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"
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# Variables to save list's state when switching views
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# The views are: history and "most frequent history words"
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local one_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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local one_NLIST_CURRENT_IDX
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local one_NLIST_IS_SEARCH_MODE
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local one_NLIST_SEARCH_BUFFER
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local one_NLIST_TEXT_OFFSET
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local one_NLIST_IS_UNIQ_MODE
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local one_NLIST_IS_F_MODE
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local one_NLIST_GREP_STRING
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local one_NLIST_NONSELECTABLE_ELEMENTS
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local one_NLIST_REMEMBER_STATE
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local one_NLIST_ENABLED_EVENTS
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local two_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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local two_NLIST_CURRENT_IDX
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local two_NLIST_IS_SEARCH_MODE
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local two_NLIST_SEARCH_BUFFER
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local two_NLIST_TEXT_OFFSET
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local two_NLIST_IS_UNIQ_MODE
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local two_NLIST_IS_F_MODE
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local two_NLIST_GREP_STRING
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local two_NLIST_NONSELECTABLE_ELEMENTS
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local two_NLIST_REMEMBER_STATE
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local two_NLIST_ENABLED_EVENTS
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local three_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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local three_NLIST_CURRENT_IDX
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local three_NLIST_IS_SEARCH_MODE
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local three_NLIST_SEARCH_BUFFER
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local three_NLIST_TEXT_OFFSET
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local three_NLIST_IS_UNIQ_MODE
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local three_NLIST_IS_F_MODE
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local three_NLIST_GREP_STRING
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local three_NLIST_NONSELECTABLE_ELEMENTS
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local three_NLIST_REMEMBER_STATE
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local three_NLIST_ENABLED_EVENTS
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# history view
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integer active_view=0
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# Lists are "0", "1", "2" - 1st, 2nd, 3rd
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# Switching is done in cyclic manner
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# i.e. 0 -> 1, 1 -> 2, 2 -> 0
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_nhistory_switch_lists_states() {
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# First argument is current, newly selected list, i.e. $active_view
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# This implies that we are switching from previous view
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if [ "$1" = "0" ]; then
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# Switched to 1st list, save 3rd list's state
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three_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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three_NLIST_CURRENT_IDX=$NLIST_CURRENT_IDX
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three_NLIST_IS_SEARCH_MODE=$NLIST_IS_SEARCH_MODE
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three_NLIST_SEARCH_BUFFER=$NLIST_SEARCH_BUFFER
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three_NLIST_TEXT_OFFSET=$NLIST_TEXT_OFFSET
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three_NLIST_IS_UNIQ_MODE=$NLIST_IS_UNIQ_MODE
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three_NLIST_IS_F_MODE=$NLIST_IS_F_MODE
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three_NLIST_GREP_STRING=$NLIST_GREP_STRING
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three_NLIST_NONSELECTABLE_ELEMENTS=( ${NLIST_NONSELECTABLE_ELEMENTS[@]} )
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three_NLIST_REMEMBER_STATE=$NLIST_REMEMBER_STATE
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three_NLIST_ENABLED_EVENTS=( ${NLIST_ENABLED_EVENTS[@]} )
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# ..and restore 1st list's state
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NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$one_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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NLIST_CURRENT_IDX=$one_NLIST_CURRENT_IDX
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NLIST_IS_SEARCH_MODE=$one_NLIST_IS_SEARCH_MODE
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NLIST_SEARCH_BUFFER=$one_NLIST_SEARCH_BUFFER
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NLIST_TEXT_OFFSET=$one_NLIST_TEXT_OFFSET
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NLIST_IS_UNIQ_MODE=$one_NLIST_IS_UNIQ_MODE
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NLIST_IS_F_MODE=$one_NLIST_IS_F_MODE
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NLIST_GREP_STRING=$one_NLIST_GREP_STRING
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NLIST_NONSELECTABLE_ELEMENTS=( ${one_NLIST_NONSELECTABLE_ELEMENTS[@]} )
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NLIST_REMEMBER_STATE=$one_NLIST_REMEMBER_STATE
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NLIST_ENABLED_EVENTS=( ${one_NLIST_ENABLED_EVENTS[@]} )
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elif [ "$1" = "1" ]; then
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# Switched to 2nd list, save 1st list's state
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one_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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one_NLIST_CURRENT_IDX=$NLIST_CURRENT_IDX
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one_NLIST_IS_SEARCH_MODE=$NLIST_IS_SEARCH_MODE
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one_NLIST_SEARCH_BUFFER=$NLIST_SEARCH_BUFFER
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one_NLIST_TEXT_OFFSET=$NLIST_TEXT_OFFSET
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one_NLIST_IS_UNIQ_MODE=$NLIST_IS_UNIQ_MODE
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one_NLIST_IS_F_MODE=$NLIST_IS_F_MODE
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one_NLIST_GREP_STRING=$NLIST_GREP_STRING
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one_NLIST_NONSELECTABLE_ELEMENTS=( ${NLIST_NONSELECTABLE_ELEMENTS[@]} )
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one_NLIST_REMEMBER_STATE=$NLIST_REMEMBER_STATE
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one_NLIST_ENABLED_EVENTS=( ${NLIST_ENABLED_EVENTS[@]} )
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# ..and restore 2nd list's state
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NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$two_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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NLIST_CURRENT_IDX=$two_NLIST_CURRENT_IDX
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NLIST_IS_SEARCH_MODE=$two_NLIST_IS_SEARCH_MODE
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NLIST_SEARCH_BUFFER=$two_NLIST_SEARCH_BUFFER
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NLIST_TEXT_OFFSET=$two_NLIST_TEXT_OFFSET
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NLIST_IS_UNIQ_MODE=$two_NLIST_IS_UNIQ_MODE
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NLIST_IS_F_MODE=$two_NLIST_IS_F_MODE
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NLIST_GREP_STRING=$two_NLIST_GREP_STRING
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NLIST_NONSELECTABLE_ELEMENTS=( ${two_NLIST_NONSELECTABLE_ELEMENTS[@]} )
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NLIST_REMEMBER_STATE=$two_NLIST_REMEMBER_STATE
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NLIST_ENABLED_EVENTS=( ${two_NLIST_ENABLED_EVENTS[@]} )
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elif [ "$1" = "2" ]; then
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# Switched to 3rd list, save 2nd list's state
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two_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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two_NLIST_CURRENT_IDX=$NLIST_CURRENT_IDX
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two_NLIST_IS_SEARCH_MODE=$NLIST_IS_SEARCH_MODE
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two_NLIST_SEARCH_BUFFER=$NLIST_SEARCH_BUFFER
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two_NLIST_TEXT_OFFSET=$NLIST_TEXT_OFFSET
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two_NLIST_IS_UNIQ_MODE=$NLIST_IS_UNIQ_MODE
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two_NLIST_IS_F_MODE=$NLIST_IS_F_MODE
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two_NLIST_GREP_STRING=$NLIST_GREP_STRING
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two_NLIST_NONSELECTABLE_ELEMENTS=( ${NLIST_NONSELECTABLE_ELEMENTS[@]} )
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two_NLIST_REMEMBER_STATE=$NLIST_REMEMBER_STATE
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two_NLIST_ENABLED_EVENTS=( ${NLIST_ENABLED_EVENTS[@]} )
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# ..and restore 3rd list's state
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NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=$three_NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN
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NLIST_CURRENT_IDX=$three_NLIST_CURRENT_IDX
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NLIST_IS_SEARCH_MODE=$three_NLIST_IS_SEARCH_MODE
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NLIST_SEARCH_BUFFER=$three_NLIST_SEARCH_BUFFER
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NLIST_TEXT_OFFSET=$three_NLIST_TEXT_OFFSET
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NLIST_IS_UNIQ_MODE=$three_NLIST_IS_UNIQ_MODE
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NLIST_IS_F_MODE=$three_NLIST_IS_F_MODE
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NLIST_GREP_STRING=$three_NLIST_GREP_STRING
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NLIST_NONSELECTABLE_ELEMENTS=( ${three_NLIST_NONSELECTABLE_ELEMENTS[@]} )
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NLIST_REMEMBER_STATE=$three_NLIST_REMEMBER_STATE
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NLIST_ENABLED_EVENTS=( ${three_NLIST_ENABLED_EVENTS[@]} )
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fi
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}
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local most_frequent_db="$HOME/.config/znt/mostfrequent.db"
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_nhistory_generate_most_frequent() {
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local title=$'\x1b[00;31m'"Most frequent history words:"$'\x1b[00;00m\0'
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typeset -A uniq
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for k in "${historywords[@]}"; do
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uniq[$k]=$(( ${uniq[$k]:-0} + 1 ))
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done
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vk=()
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for k v in ${(kv)uniq}; do
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vk+="$v"$'\t'"$k"
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done
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print -rl -- "$title" "${(On)vk[@]}" > "$most_frequent_db"
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}
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# Load configuration
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unset NLIST_COLORING_PATTERN
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[ -f ~/.config/znt/n-list.conf ] && builtin source ~/.config/znt/n-list.conf
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[ -f ~/.config/znt/n-history.conf ] && builtin source ~/.config/znt/n-history.conf
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local list
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local selected
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local private_history_db="$HOME/.config/znt/privhist.db"
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local NLIST_GREP_STRING="$1"
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# 2 is: init once, then remember
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local NLIST_REMEMBER_STATE=2
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two_NLIST_REMEMBER_STATE=2
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three_NLIST_REMEMBER_STATE=2
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# Only Private history has EDIT
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local -a NLIST_ENABLED_EVENTS
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NLIST_ENABLED_EVENTS=( "F1" "HELP" )
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two_NLIST_ENABLED_EVENTS=( "F1" "EDIT" "HELP" )
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three_NLIST_ENABLED_EVENTS=( "F1" "HELP" )
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# All view should attempt to replace new lines with \n
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local NLIST_REPLACE_NEWLINES="1"
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two_NLIST_REPLACE_NEWLINES="1"
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three_NLIST_REPLACE_NEWLINES="1"
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# Only second and third view has non-selectable first entry
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local -a NLIST_NONSELECTABLE_ELEMENTS
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NLIST_NONSELECTABLE_ELEMENTS=( )
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two_NLIST_NONSELECTABLE_ELEMENTS=( 1 )
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three_NLIST_NONSELECTABLE_ELEMENTS=( 1 )
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while (( 1 )); do
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#
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# View 1 - history
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#
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if [ "$active_view" = "0" ]; then
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list=( "$history[@]" )
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list=( "${(@M)list:#(#i)*$NLIST_GREP_STRING*}" )
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if [ "$#list" -eq 0 ]; then
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echo "No matching history entries"
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return 1
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fi
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n-list "${list[@]}"
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# Selection or quit?
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if [[ "$REPLY" = -(#c0,1)[0-9]## && ("$REPLY" -lt 0 || "$REPLY" -gt 0) ]]; then
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break
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fi
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# View change?
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if [ "$REPLY" = "F1" ]; then
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# Target view: 2
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active_view=1
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_nhistory_switch_lists_states "1"
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elif [ "$REPLY" = "HELP" ]; then
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n-help
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fi
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#
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# View 3 - most frequent words in history
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#
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elif [ "$active_view" = "2" ]; then
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local -a dbfile
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dbfile=( $most_frequent_db(Nm+1) )
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# Compute most frequent history words
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if [[ "${#NHISTORY_WORDS}" -eq "0" || "${#dbfile}" -ne "0" ]]; then
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# Read the list if it's there
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local -a list
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list=()
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[ -s "$most_frequent_db" ] && list=( ${(f)"$(<$most_frequent_db)"} )
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# Will wait for the data?
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local message=0
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if [[ "${#list}" -eq 0 ]]; then
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message=1
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_nlist_alternate_screen 1
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zcurses init
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zcurses delwin info 2>/dev/null
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zcurses addwin info "$term_height" "$term_width" 0 0
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zcurses bg info white/black
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zcurses string info "Computing most frequent history words..."$'\n'
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zcurses string info "(This is done once per day, from now on transparently)"$'\n'
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zcurses refresh info
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sleep 3
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fi
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# Start periodic list regeneration?
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if [[ "${#list}" -eq 0 || "${#dbfile}" -ne "0" ]]; then
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# Mark the file with current time, to prevent double
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# regeneration (on quick double change of view)
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print >> "$most_frequent_db"
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(_nhistory_generate_most_frequent &) &> /dev/null
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fi
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# Ensure we got the list, wait for it if needed
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while [[ "${#list}" -eq 0 ]]; do
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zcurses string info "."
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zcurses refresh info
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LANG=C sleep 0.5
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[ -s "$most_frequent_db" ] && list=( ${(f)"$(<$most_frequent_db)"} )
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done
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NHISTORY_WORDS=( "${list[@]}" )
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if [ "$message" -eq "1" ]; then
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zcurses delwin info 2>/dev/null
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zcurses refresh
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zcurses end
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_nlist_alternate_screen 0
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fi
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else
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# Reuse most frequent history words
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local -a list
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list=( "${NHISTORY_WORDS[@]}" )
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fi
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n-list "${list[@]}"
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if [ "$REPLY" = "F1" ]; then
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# Target view: 1
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active_view=0
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_nhistory_switch_lists_states "0"
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elif [[ "$REPLY" = -(#c0,1)[0-9]## && "$REPLY" -lt 0 ]]; then
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break
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elif [[ "$REPLY" = -(#c0,1)[0-9]## && "$REPLY" -gt 0 ]]; then
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local word="${reply[REPLY]#(#s) #[0-9]##$'\t'}"
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one_NLIST_SEARCH_BUFFER="$word"
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one_NLIST_SEARCH_BUFFER="${one_NLIST_SEARCH_BUFFER## ##}"
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# Target view: 1
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active_view=0
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_nhistory_switch_lists_states "0"
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elif [ "$REPLY" = "HELP" ]; then
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n-help
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fi
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#
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# View 2 - private history
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#
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elif [ "$active_view" = "1" ]; then
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if [ -s "$private_history_db" ]; then
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local title=$'\x1b[00;32m'"Private history:"$'\x1b[00;00m\0'
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() { fc -Rap "$private_history_db" 20000 0; list=( "$title" ${history[@]} ) }
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else
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list=( "Private history - history entries selected via this tool will be put here" )
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fi
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n-list "${list[@]}"
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# Selection or quit?
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if [[ "$REPLY" = -(#c0,1)[0-9]## && ("$REPLY" -lt 0 || "$REPLY" -gt 0) ]]; then
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break
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fi
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# View change?
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if [ "$REPLY" = "F1" ]; then
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# Target view: 3
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active_view=2
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_nhistory_switch_lists_states "2"
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# Edit of the history?
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elif [ "$REPLY" = "EDIT" ]; then
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"${EDITOR:-vim}" "$private_history_db"
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elif [ "$REPLY" = "HELP" ]; then
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n-help
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fi
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fi
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done
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if [ "$REPLY" -gt 0 ]; then
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selected="$reply[REPLY]"
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# Append to private history
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if [[ "$active_view" = "0" ]]; then
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local newline=$'\n'
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local selected_ph="${selected//$newline/\\$newline}"
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print -r -- "$selected_ph" >> "$private_history_db"
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fi
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# TMUX?
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if [[ "$ZNT_TMUX_MODE" = "1" ]]; then
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tmux send -t "$ZNT_TMUX_ORIGIN_SESSION:$ZNT_TMUX_ORIGIN_WINDOW.$ZNT_TMUX_ORIGIN_PANE" "$selected"
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tmux kill-window
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return 0
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# ZLE?
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elif [ "${(t)CURSOR}" = "integer-local-special" ]; then
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zle .redisplay
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zle .kill-buffer
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LBUFFER+="$selected"
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else
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print -zr -- "$selected"
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fi
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else
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# TMUX?
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if [[ "$ZNT_TMUX_MODE" = "1" ]]; then
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tmux kill-window
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# ZLE?
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elif [[ "${(t)CURSOR}" = "integer-local-special" ]]; then
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zle redisplay
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fi
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fi
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return 0
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# vim: set filetype=zsh:
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