+++ /dev/null
-# $1, $2, ... - elements of the list
-# $NLIST_NONSELECTABLE_ELEMENTS - array of indexes (1-based) that cannot be selected
-# $REPLY is the output variable - contains index (1-based) or -1 when no selection
-# $reply (array) is the second part of the output - use the index (REPLY) to get selected element
-#
-# Copy this file into /usr/share/zsh/site-functions/
-# and add 'autoload n-list` to .zshrc
-#
-# This function outputs a list of elements that can be
-# navigated with keyboard. Uses curses library
-
-emulate -LR zsh
-
-setopt typesetsilent extendedglob noshortloops
-
-_nlist_has_terminfo=0
-
-zmodload zsh/curses
-zmodload zsh/terminfo 2>/dev/null && _nlist_has_terminfo=1
-
-trap "REPLY=-2; reply=(); return" TERM INT QUIT
-trap "_nlist_exit" EXIT
-
-# Drawing and input
-autoload n-list-draw n-list-input
-
-# Cleanup before any exit
-_nlist_exit() {
- setopt localoptions
- setopt extendedglob
-
- [[ "$REPLY" = -(#c0,1)[0-9]## || "$REPLY" = F<-> || "$REPLY" = "EDIT" || "$REPLY" = "HELP" ]] || REPLY="-1"
- zcurses 2>/dev/null delwin inner
- zcurses 2>/dev/null delwin main
- zcurses 2>/dev/null refresh
- zcurses end
- _nlist_alternate_screen 0
- _nlist_cursor_visibility 1
- unset _nlist_has_terminfo
-}
-
-# Outputs a message in the bottom of the screen
-_nlist_status_msg() {
- # -1 for border, -1 for 0-based indexing
- zcurses move main $(( term_height - 1 - 1 )) 2
- zcurses clear main eol
- zcurses string main "$1"
- #status_msg_strlen is localized in caller
- status_msg_strlen=$#1
-}
-
-# Prefer tput, then module terminfo
-_nlist_cursor_visibility() {
- if type tput 2>/dev/null 1>&2; then
- [ "$1" = "1" ] && { tput cvvis; tput cnorm }
- [ "$1" = "0" ] && tput civis
- elif [ "$_nlist_has_terminfo" = "1" ]; then
- [ "$1" = "1" ] && { [ -n $terminfo[cvvis] ] && echo -n $terminfo[cvvis];
- [ -n $terminfo[cnorm] ] && echo -n $terminfo[cnorm] }
- [ "$1" = "0" ] && [ -n $terminfo[civis] ] && echo -n $terminfo[civis]
- fi
-}
-
-# Reason for this function is that on some systems
-# smcup and rmcup are not knowing why left empty
-_nlist_alternate_screen() {
- [ "$_nlist_has_terminfo" -ne "1" ] && return
- [[ "$1" = "1" && -n "$terminfo[smcup]" ]] && return
- [[ "$1" = "0" && -n "$terminfo[rmcup]" ]] && return
-
- case "$TERM" in
- *rxvt*)
- [ "$1" = "1" ] && echo -n $'\x1b7\x1b[?47h'
- [ "$1" = "0" ] && echo -n $'\x1b[2J\x1b[?47l\x1b8'
- ;;
- *)
- [ "$1" = "1" ] && echo -n $'\x1b[?1049h'
- [ "$1" = "0" ] && echo -n $'\x1b[?1049l'
- # just to remember two other that work: $'\x1b7\x1b[r\x1b[?47h', $'\x1b[?47l\x1b8'
- ;;
- esac
-}
-
-_nlist_compute_user_vars_difference() {
- if [[ "${(t)NLIST_NONSELECTABLE_ELEMENTS}" != "array" &&
- "${(t)NLIST_NONSELECTABLE_ELEMENTS}" != "array-local" ]]
- then
- last_element_difference=0
- current_difference=0
- else
- last_element_difference=$#NLIST_NONSELECTABLE_ELEMENTS
- current_difference=0
- local idx
- for idx in "${(n)NLIST_NONSELECTABLE_ELEMENTS[@]}"; do
- [ "$idx" -le "$NLIST_CURRENT_IDX" ] && current_difference+=1 || break
- done
- fi
-}
-
-# List was processed, check if variables aren't off range
-_nlist_verify_vars() {
- [ "$NLIST_CURRENT_IDX" -gt "$last_element" ] && NLIST_CURRENT_IDX="$last_element"
- [[ "$NLIST_CURRENT_IDX" -eq 0 && "$last_element" -ne 0 ]] && NLIST_CURRENT_IDX=1
- (( NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=0+((NLIST_CURRENT_IDX-1)/page_height)*page_height+1 ))
-}
-
-# Compute the variables which are shown to the user
-_nlist_setup_user_vars() {
- if [ "$1" = "1" ]; then
- # Basic values when there are no non-selectables
- NLIST_USER_CURRENT_IDX="$NLIST_CURRENT_IDX"
- NLIST_USER_LAST_ELEMENT="$last_element"
- else
- _nlist_compute_user_vars_difference
- NLIST_USER_CURRENT_IDX=$(( NLIST_CURRENT_IDX - current_difference ))
- NLIST_USER_LAST_ELEMENT=$(( last_element - last_element_difference ))
- fi
-}
-
-_nlist_colorify_disp_list() {
- local col=$'\x1b[00;34m' reset=$'\x1b[0m'
- [ -n "$NLIST_COLORING_COLOR" ] && col="$NLIST_COLORING_COLOR"
- [ -n "$NLIST_COLORING_END_COLOR" ] && reset="$NLIST_COLORING_END_COLOR"
-
- if [ "$NLIST_COLORING_MATCH_MULTIPLE" -eq 1 ]; then
- disp_list=( "${(@)disp_list//(#mi)$~NLIST_COLORING_PATTERN/$col${MATCH}$reset}" )
- else
- disp_list=( "${(@)disp_list/(#mi)$~NLIST_COLORING_PATTERN/$col${MATCH}$reset}" )
- fi
-}
-
-#
-# Main code
-#
-
-# Check if there is proper input
-if [ "$#" -lt 1 ]; then
- echo "Usage: n-list element_1 ..."
- return 1
-fi
-
-REPLY="-1"
-typeset -ga reply
-reply=()
-
-integer term_height="$LINES"
-integer term_width="$COLUMNS"
-if [[ "$term_height" -lt 1 || "$term_width" -lt 1 ]]; then
- local stty_out=$( stty size )
- term_height="${stty_out% *}"
- term_width="${stty_out#* }"
-fi
-integer inner_height=term_height-3
-integer inner_width=term_width-3
-integer page_height=inner_height
-integer page_width=inner_width
-
-typeset -a list disp_list
-integer last_element=$#
-local action
-local final_key
-integer selection
-integer last_element_difference=0
-integer current_difference=0
-local prev_search_buffer=""
-integer prev_uniq_mode=0
-integer prev_start_idx=-1
-local MBEGIN MEND MATCH mbegin mend match
-
-# Iteration over predefined keywords
-integer curkeyword nkeywords
-local keywordisfresh="0"
-if [[ "${(t)keywords}" != *array* ]]; then
- local -a keywords
- keywords=()
-fi
-curkeyword=0
-nkeywords=${#keywords}
-
-# Iteration over themes
-integer curtheme nthemes
-local themeisfresh="0"
-if [[ "${(t)themes}" != *array* ]]; then
- local -a themes
- themes=()
-fi
-curtheme=0
-nthemes=${#themes}
-
-# Ability to remember the list between calls
-if [[ -z "$NLIST_REMEMBER_STATE" || "$NLIST_REMEMBER_STATE" -eq 0 || "$NLIST_REMEMBER_STATE" -eq 2 ]]; then
- NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN=1
- NLIST_CURRENT_IDX=1
- NLIST_IS_SEARCH_MODE=0
- NLIST_SEARCH_BUFFER=""
- NLIST_TEXT_OFFSET=0
- NLIST_IS_UNIQ_MODE=0
- NLIST_IS_F_MODE=0
-
- # Zero - because it isn't known, unless we
- # confirm that first element is selectable
- NLIST_USER_CURRENT_IDX=0
- [[ ${NLIST_NONSELECTABLE_ELEMENTS[(r)1]} != 1 ]] && NLIST_USER_CURRENT_IDX=1
- NLIST_USER_LAST_ELEMENT=$(( last_element - $#NLIST_NONSELECTABLE_ELEMENTS ))
-
- # 2 is init once, then remember
- [ "$NLIST_REMEMBER_STATE" -eq 2 ] && NLIST_REMEMBER_STATE=1
-fi
-
-if [ "$NLIST_START_IN_SEARCH_MODE" -eq 1 ]; then
- NLIST_START_IN_SEARCH_MODE=0
- NLIST_IS_SEARCH_MODE=1
-fi
-
-if [ -n "$NLIST_SET_SEARCH_TO" ]; then
- NLIST_SEARCH_BUFFER="$NLIST_SET_SEARCH_TO"
- NLIST_SET_SEARCH_TO=""
-fi
-
-if [ "$NLIST_START_IN_UNIQ_MODE" -eq 1 ]; then
- NLIST_START_IN_UNIQ_MODE=0
- NLIST_IS_UNIQ_MODE=1
-fi
-
-_nlist_alternate_screen 1
-zcurses init
-zcurses delwin main 2>/dev/null
-zcurses delwin inner 2>/dev/null
-zcurses addwin main "$term_height" "$term_width" 0 0
-zcurses addwin inner "$inner_height" "$inner_width" 1 2
-# From n-list.conf
-[ "$colorpair" = "" ] && colorpair="white/black"
-[ "$border" = "0" ] || border="1"
-local background="${colorpair#*/}"
-local backuptheme="$colorpair/$bold"
-zcurses bg main "$colorpair"
-zcurses bg inner "$colorpair"
-if [ "$NLIST_IS_SEARCH_MODE" -ne 1 ]; then
- _nlist_cursor_visibility 0
-fi
-
-zcurses refresh
-
-#
-# Listening for input
-#
-
-local key keypad
-
-# Clear input buffer
-zcurses timeout main 0
-zcurses input main key keypad
-zcurses timeout main -1
-key=""
-keypad=""
-
-# This loop makes script faster on some Zsh's (e.g. 5.0.8)
-repeat 1; do
- list=( "$@" )
-done
-
-last_element="$#list"
-
-zcurses clear main redraw
-zcurses clear inner redraw
-while (( 1 )); do
- # Do searching (filtering with string)
- if [ -n "$NLIST_SEARCH_BUFFER" ]; then
- # Compute new list?
- if [[ "$NLIST_SEARCH_BUFFER" != "$prev_search_buffer" || "$NLIST_IS_UNIQ_MODE" -ne "$prev_uniq_mode"
- || "$NLIST_IS_F_MODE" -ne "$prev_f_mode" ]]
- then
- prev_search_buffer="$NLIST_SEARCH_BUFFER"
- prev_uniq_mode="$NLIST_IS_UNIQ_MODE"
- prev_f_mode="$NLIST_IS_F_MODE"
- # regenerating list -> regenerating disp_list
- prev_start_idx=-1
-
- # Take all elements, including duplicates and non-selectables
- typeset +U list
- repeat 1; do
- list=( "$@" )
- done
-
- # Remove non-selectable elements
- [ "$#NLIST_NONSELECTABLE_ELEMENTS" -gt 0 ] && for i in "${(nO)NLIST_NONSELECTABLE_ELEMENTS[@]}"; do
- if [[ "$i" = <-> ]]; then
- list[$i]=()
- fi
- done
-
- # Remove duplicates
- [ "$NLIST_IS_UNIQ_MODE" -eq 1 ] && typeset -U list
-
- last_element="$#list"
-
- # Next do the filtering
- local search_buffer="${NLIST_SEARCH_BUFFER%% ##}"
- search_buffer="${search_buffer## ##}"
- search_buffer="${search_buffer//(#m)[][*?|#~^()><\\]/\\$MATCH}"
- local search_pattern=""
- local colsearch_pattern=""
- if [ -n "$search_buffer" ]; then
- # The repeat will make the matching work on a fresh heap
- repeat 1; do
- if [ "$NLIST_IS_F_MODE" -eq "1" ]; then
- search_pattern="${search_buffer// ##/*~^(#a1)*}"
- colsearch_pattern="${search_buffer// ##/|(#a1)}"
- list=( "${(@M)list:#(#ia1)*$~search_pattern*}" )
- elif [ "$NLIST_IS_F_MODE" -eq "2" ]; then
- search_pattern="${search_buffer// ##/*~^(#a2)*}"
- colsearch_pattern="${search_buffer// ##/|(#a2)}"
- list=( "${(@M)list:#(#ia2)*$~search_pattern*}" )
- else
- # Pattern will be *foo*~^*bar* (inventor: Mikael Magnusson)
- search_pattern="${search_buffer// ##/*~^*}"
- # Pattern will be (foo|bar)
- colsearch_pattern="${search_buffer// ##/|}"
- list=( "${(@M)list:#(#i)*$~search_pattern*}" )
- fi
- done
-
- last_element="$#list"
- fi
-
- # Called after processing list
- _nlist_verify_vars
- fi
-
- _nlist_setup_user_vars 1
-
- integer end_idx=$(( NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN + page_height - 1 ))
- [ "$end_idx" -gt "$last_element" ] && end_idx=last_element
-
- if [ "$prev_start_idx" -ne "$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN" ]; then
- prev_start_idx="$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN"
- disp_list=( "${(@)list[NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN, end_idx]}" )
-
- if [ -n "$colsearch_pattern" ]; then
- local red=$'\x1b[00;31m' reset=$'\x1b[00;00m'
- # The repeat will make the matching work on a fresh heap
- repeat 1; do
- if [ "$NLIST_IS_F_MODE" -eq "1" ]; then
- disp_list=( "${(@)disp_list//(#mia1)($~colsearch_pattern)/$red${MATCH}$reset}" )
- elif [ "$NLIST_IS_F_MODE" -eq "2" ]; then
- disp_list=( "${(@)disp_list//(#mia2)($~colsearch_pattern)/$red${MATCH}$reset}" )
- else
- disp_list=( "${(@)disp_list//(#mi)($~colsearch_pattern)/$red${MATCH}$reset}" )
- fi
- done
- fi
-
- # We have display list, lets replace newlines with "\n" when needed (1/2)
- [ "$NLIST_REPLACE_NEWLINES" -eq 1 ] && disp_list=( "${(@)disp_list//$'\n'/\\n}" )
- fi
-
- # Output colored list
- zcurses clear inner
- n-list-draw "$(( (NLIST_CURRENT_IDX-1) % page_height + 1 ))" \
- "$page_height" "$page_width" 0 0 "$NLIST_TEXT_OFFSET" inner \
- "$disp_list[@]"
- else
- # There is no search, but there was in previous loop
- # OR
- # Uniq mode was entered or left out
- # -> compute new list
- if [[ -n "$prev_search_buffer" || "$NLIST_IS_UNIQ_MODE" -ne "$prev_uniq_mode" ]]; then
- prev_search_buffer=""
- prev_uniq_mode="$NLIST_IS_UNIQ_MODE"
- # regenerating list -> regenerating disp_list
- prev_start_idx=-1
-
- # Take all elements, including duplicates and non-selectables
- typeset +U list
- repeat 1; do
- list=( "$@" )
- done
-
- # Remove non-selectable elements only when in uniq mode
- [ "$NLIST_IS_UNIQ_MODE" -eq 1 ] && [ "$#NLIST_NONSELECTABLE_ELEMENTS" -gt 0 ] &&
- for i in "${(nO)NLIST_NONSELECTABLE_ELEMENTS[@]}"; do
- if [[ "$i" = <-> ]]; then
- list[$i]=()
- fi
- done
-
- # Remove duplicates when in uniq mode
- [ "$NLIST_IS_UNIQ_MODE" -eq 1 ] && typeset -U list
-
- last_element="$#list"
- # Called after processing list
- _nlist_verify_vars
- fi
-
- # "1" - shouldn't bother with non-selectables
- _nlist_setup_user_vars "$NLIST_IS_UNIQ_MODE"
-
- integer end_idx=$(( NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN + page_height - 1 ))
- [ "$end_idx" -gt "$last_element" ] && end_idx=last_element
-
- if [ "$prev_start_idx" -ne "$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN" ]; then
- prev_start_idx="$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN"
- disp_list=( "${(@)list[NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN, end_idx]}" )
-
- [ -n "$NLIST_COLORING_PATTERN" ] && _nlist_colorify_disp_list
-
- # We have display list, lets replace newlines with "\n" when needed (2/2)
- [ "$NLIST_REPLACE_NEWLINES" -eq 1 ] && disp_list=( "${(@)disp_list//$'\n'/\\n}" )
- fi
-
- # Output the list
- zcurses clear inner
- n-list-draw "$(( (NLIST_CURRENT_IDX-1) % page_height + 1 ))" \
- "$page_height" "$page_width" 0 0 "$NLIST_TEXT_OFFSET" inner \
- "$disp_list[@]"
- fi
-
- local status_msg_strlen
- local keywordmsg=""
- if [ "$keywordisfresh" = "1" ]; then
- keywordmsg="($curkeyword/$nkeywords) "
- keywordisfresh="0"
- fi
-
- local thememsg=""
- if [ "$themeisfresh" = "1" ]; then
- local theme="$backuptheme"
- [ "$curtheme" -gt 0 ] && theme="${themes[curtheme]}"
- thememsg="($curtheme/$nthemes $theme) "
- themeisfresh="0"
- fi
-
- local _txt2="" _txt3=""
- [ "$NLIST_IS_UNIQ_MODE" -eq 1 ] && _txt2="[-UNIQ-] "
- [ "$NLIST_IS_F_MODE" -eq 1 ] && _txt3="[-FIX-] "
- [ "$NLIST_IS_F_MODE" -eq 2 ] && _txt3="[-FIX2-] "
-
- if [ "$NLIST_IS_SEARCH_MODE" = "1" ]; then
- _nlist_status_msg "${_txt2}${_txt3}${keywordmsg}${thememsg}Filtering with: ${NLIST_SEARCH_BUFFER// /+}"
- elif [[ ${NLIST_NONSELECTABLE_ELEMENTS[(r)$NLIST_CURRENT_IDX]} != $NLIST_CURRENT_IDX ||
- -n "$NLIST_SEARCH_BUFFER" || "$NLIST_IS_UNIQ_MODE" -eq 1 ]]; then
- local _txt=""
- [ -n "$NLIST_GREP_STRING" ] && _txt=" [$NLIST_GREP_STRING]"
- _nlist_status_msg "${_txt2}${_txt3}${keywordmsg}${thememsg}Current #$NLIST_USER_CURRENT_IDX (of #$NLIST_USER_LAST_ELEMENT entries)$_txt"
- else
- _nlist_status_msg "${keywordmsg}${thememsg}"
- fi
-
- [ "$border" = "1" ] && zcurses border main
-
- local top_msg=" ${(C)ZSH_NAME} $ZSH_VERSION, shell level $SHLVL "
- if [[ "${NLIST_ENABLED_EVENTS[(r)F1]}" = "F1" ]]; then
- top_msg=" F1-change view,$top_msg"
- fi
- zcurses move main 0 $(( term_width / 2 - $#top_msg / 2 ))
- zcurses string main $top_msg
-
- zcurses refresh main inner
- zcurses move main $(( term_height - 1 - 1 )) $(( status_msg_strlen + 2 ))
-
- # Wait for input
- zcurses input main key keypad
-
- # Get the special (i.e. "keypad") key or regular key
- if [ -n "$key" ]; then
- final_key="$key"
- elif [ -n "$keypad" ]; then
- final_key="$keypad"
- else
- _nlist_status_msg "Inproper input detected"
- zcurses refresh main inner
- fi
-
- n-list-input "$NLIST_CURRENT_IDX" "$NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN" \
- "$page_height" "$page_width" "$last_element" "$NLIST_TEXT_OFFSET" \
- "$final_key" "$NLIST_IS_SEARCH_MODE" "$NLIST_SEARCH_BUFFER" \
- "$NLIST_IS_UNIQ_MODE" "$NLIST_IS_F_MODE"
-
- selection="$reply[1]"
- action="$reply[2]"
- NLIST_CURRENT_IDX="$reply[3]"
- NLIST_FROM_WHAT_IDX_LIST_IS_SHOWN="$reply[4]"
- NLIST_TEXT_OFFSET="$reply[5]"
- NLIST_IS_SEARCH_MODE="$reply[6]"
- NLIST_SEARCH_BUFFER="$reply[7]"
- NLIST_IS_UNIQ_MODE="$reply[8]"
- NLIST_IS_F_MODE="$reply[9]"
-
- if [ -z "$action" ]; then
- continue
- elif [ "$action" = "SELECT" ]; then
- REPLY="$selection"
- reply=( "$list[@]" )
- break
- elif [ "$action" = "QUIT" ]; then
- REPLY=-1
- reply=( "$list[@]" )
- break
- elif [ "$action" = "REDRAW" ]; then
- zcurses clear main redraw
- zcurses clear inner redraw
- elif [[ "$action" = F<-> ]]; then
- REPLY="$action"
- reply=( "$list[@]" )
- break
- elif [[ "$action" = "EDIT" ]]; then
- REPLY="EDIT"
- reply=( "$list[@]" )
- break
- elif [[ "$action" = "HELP" ]]; then
- REPLY="HELP"
- reply=( "$list[@]" )
- break
- fi
-done
-
-# vim: set filetype=zsh:
projects / dotfiles.git / blobdiff