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zsh-select
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zsh-select
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#!/usr/bin/env zsh
# Configuration variables:
# - ZSHSELECT_BOLD
# - ZSHSELECT_COLOR_PAIR
# - ZSHSELECT_BORDER
# - ZSHSELECT_ACTIVE_TEXT
# - ZSHSELECT_START_IN_SEARCH_MODE
emulate -LR zsh
setopt extendedglob
# Should the list (text, borders) be drawn in bold
# Value 1 is the default
local bold=1
[[ "$ZSHSELECT_BOLD" = <-> ]] && bold="$ZSHSELECT_BOLD"
# Main color pair (foreground/background)
local colorpair="white/black"
[[ "$ZSHSELECT_COLOR_PAIR" = [[:alnum:]]##/[[:alnum:]]## ]] && colorpair="$ZSHSELECT_COLOR_PAIR"
# Should draw the border?
local border=0
[[ "$ZSHSELECT_BORDER" = <-> ]] && border="$ZSHSELECT_BORDER"
# Combinations of colors to try out with Ctrl-T and Ctrl-G
# The last number is the bold option, 0 or 1
local -a themes
themes=( "white/black/0" "white/black/1" "green/black/0" "green/black/1" "white/blue/0" "white/blue/1"
"magenta/black/0" "magenta/black/1" )
# If 1, pressing enter when in search mode will not only
# leave the mode, but also do selection and leave tool
local NLIST_INSTANT_SELECT=0
# How should be current element of the list drawn. Possible values: reverse, underline.
# On Linux virtual terminal this will be enforced to reverse (because of poor
# underline support on that terminal). The same for screen/tmux. You can fix
# those terminals, see: http://psprint.github.io/Fixing-TMux-Screen-and-Linuxs-VT/
local active_text=reverse
[[ "$ZSHSELECT_ACTIVE_TEXT" = (reverse|underline) ]] && active_text="$ZSHSELECT_ACTIVE_TEXT"
NLIST_START_IN_SEARCH_MODE=1
[[ "$ZSHSELECT_START_IN_SEARCH_MODE" = <-> ]] && NLIST_START_IN_SEARCH_MODE="$ZSHSELECT_START_IN_SEARCH_MODE"
#######################################################################################
_sellist_has_terminfo=0
setopt extendedglob typesetsilent noshortloops
zmodload zsh/curses
zmodload zsh/terminfo 2>/dev/null && _sellist_has_terminfo=1
local IFS="
"
NLIST_REMEMBER_STATE=0
#######################################################################################
_sellist_compute_first_to_show_idx() {
from_what_idx_list_is_shown=0+((current_idx-1)/page_height)*page_height+1
}
_sellist_update_from_keywords() {
keywordisfresh="1"
if [ "$nkeywords" -gt 0 ]; then
curkeyword=$(( (curkeyword+1) % (nkeywords+1) ))
if [ "$curkeyword" -eq "0" ]; then
buffer=""
else
buffer="${keywords[curkeyword]}"
fi
fi
}
_sellist_iterate_theme() {
themeisfresh="1"
if [ "$1" = "1" ]; then
curtheme=$(( (curtheme+1) % (nthemes+1) ))
else
curtheme=curtheme-1
[ "$curtheme" -lt 0 ] && curtheme=nthemes
fi
if [ "$nthemes" -gt 0 ]; then
local theme=${themes[curtheme]}
[ "$curtheme" -eq "0" ] && theme="$backuptheme"
colorpair="${theme%/*}"
bold="${theme##*/}"
background="${colorpair#*/}"
zcurses bg main "$colorpair"
zcurses bg inner "$colorpair"
fi
}
_sellist_rotate_buffer() {
setopt localoptions noglob
local -a words
words=( ${(s: :)buffer} )
words=( ${words[-1]} ${words[1,-2]} )
local space=""
[ "${buffer[-1]}" = " " ] && space=" "
buffer="${(j: :)words}$space"
}
sel-list-input() {
typeset -ga reply
reply=( -1 '' )
integer current_idx="$1"
integer from_what_idx_list_is_shown="$2"
integer page_height="$3"
integer page_width="$4"
integer last_element="$5"
integer hscroll="$6"
local key="$7"
integer search="$8"
local buffer="$9"
integer uniq_mode="$10"
integer f_mode="$11"
#
# Listening for input
#
if [ "$search" = "0" ]; then
case "$key" in
(UP|k|$'\C-P')
# Are there any elements before the current one?
[ "$current_idx" -gt 1 ] && current_idx=current_idx-1;
_sellist_compute_first_to_show_idx
;;
(DOWN|j|$'\C-N')
# Are there any elements after the current one?
[ "$current_idx" -lt "$last_element" ] && current_idx=current_idx+1;
_sellist_compute_first_to_show_idx
;;
(PPAGE|$'\b'|$'\C-?'|BACKSPACE)
current_idx=current_idx-page_height
[ "$current_idx" -lt 1 ] && current_idx=1;
_sellist_compute_first_to_show_idx
;;
(NPAGE|" ")
current_idx=current_idx+page_height
[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
_sellist_compute_first_to_show_idx
;;
($'\C-U')
current_idx=current_idx-page_height/2
[ "$current_idx" -lt 1 ] && current_idx=1;
_sellist_compute_first_to_show_idx
;;
($'\C-D')
current_idx=current_idx+page_height/2
[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
_sellist_compute_first_to_show_idx
;;
(HOME|g)
current_idx=1
_sellist_compute_first_to_show_idx
;;
(END|G)
current_idx=last_element
_sellist_compute_first_to_show_idx
;;
($'\n'|ENTER)
# Is that element selectable?
# Check for this only when there is no search
if [[ "$NLIST_SEARCH_BUFFER" != "" || "$NLIST_IS_UNIQ_MODE" -eq 1 ||
${NLIST_NONSELECTABLE_ELEMENTS[(r)$current_idx]} != $current_idx ]]
then
# Save current element in the result variable
reply=( $current_idx "SELECT" )
fi
;;
(H|'?')
# This event needs to be enabled
if [[ "${NLIST_ENABLED_EVENTS[(r)HELP]}" = "HELP" ]]; then
reply=( -1 "HELP" )
fi
;;
(F1)
# This event needs to be enabled
if [[ "${NLIST_ENABLED_EVENTS[(r)F1]}" = "F1" ]]; then
reply=( -1 "$key" )
fi
;;
(F4|F5|F6|F7|F8|F9|F10|DC)
# ignore; F2, F3 are used below
;;
(q)
reply=( -1 "QUIT" )
;;
(/)
search=1
_sellist_cursor_visibility 1
;;
($'\t')
reply=( $current_idx "LEAVE" )
;;
($'\C-L')
reply=( -1 "REDRAW" )
;;
(\])
[[ "${(t)NLIST_HOP_INDEXES}" = "array" || "${(t)NLIST_HOP_INDEXES}" = "array-local" ]] &&
[ -z "$NLIST_SEARCH_BUFFER" ] && [ "$NLIST_IS_UNIQ_MODE" -eq 0 ] &&
for idx in "${(n)NLIST_HOP_INDEXES[@]}"; do
if [ "$idx" -gt "$current_idx" ]; then
current_idx=$idx
_sellist_compute_first_to_show_idx
break
fi
done
;;
(\[)
[[ "${(t)NLIST_HOP_INDEXES}" = "array" || "${(t)NLIST_HOP_INDEXES}" = "array-local" ]] &&
[ -z "$NLIST_SEARCH_BUFFER" ] && [ "$NLIST_IS_UNIQ_MODE" -eq 0 ] &&
for idx in "${(nO)NLIST_HOP_INDEXES[@]}"; do
if [ "$idx" -lt "$current_idx" ]; then
current_idx=$idx
_sellist_compute_first_to_show_idx
break
fi
done
;;
('<'|'{'|LEFT|'h')
hscroll=hscroll-7
[ "$hscroll" -lt 0 ] && hscroll=0
;;
('>'|'}'|RIGHT|'l')
hscroll+=7
;;
($'\E')
buffer=""
;;
(F3)
if [ "$search" = "1" ]; then
search=0
_sellist_cursor_visibility 0
else
search=1
_sellist_cursor_visibility 1
fi
;;
(o|$'\C-O')
uniq_mode=1-uniq_mode
;;
(f|$'\C-F')
(( f_mode=(f_mode+1) % 3 ))
;;
($'\x1F'|F2|$'\C-X')
search=1
_sellist_cursor_visibility 1
_sellist_update_from_keywords
;;
($'\C-T')
_sellist_iterate_theme 1
;;
($'\C-G')
_sellist_iterate_theme 0
;;
($'\C-E'|e)
# This event needs to be enabled
if [[ "${NLIST_ENABLED_EVENTS[(r)EDIT]}" = "EDIT" ]]; then
reply=( -1 "EDIT" )
fi
;;
($'\C-A')
_sellist_rotate_buffer
;;
(*)
;;
esac
else
case "$key" in
($'\n'|ENTER)
if [ "$NLIST_INSTANT_SELECT" = "1" ]; then
if [[ "$NLIST_SEARCH_BUFFER" != "" || "$NLIST_IS_UNIQ_MODE" -eq 1 ||
${NLIST_NONSELECTABLE_ELEMENTS[(r)$current_idx]} != $current_idx ]]
then
reply=( $current_idx "SELECT" )
fi
else
search=0
_sellist_cursor_visibility 0
fi
;;
($'\C-L')
reply=( -1 "REDRAW" )
;;
#
# Slightly limited navigation
#
(UP|$'\C-P')
[ "$current_idx" -gt 1 ] && current_idx=current_idx-1;
_sellist_compute_first_to_show_idx
;;
(DOWN|$'\C-N')
[ "$current_idx" -lt "$last_element" ] && current_idx=current_idx+1;
_sellist_compute_first_to_show_idx
;;
(PPAGE)
current_idx=current_idx-page_height
[ "$current_idx" -lt 1 ] && current_idx=1;
_sellist_compute_first_to_show_idx
;;
(NPAGE)
current_idx=current_idx+page_height
[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
_sellist_compute_first_to_show_idx
;;
($'\C-U')
current_idx=current_idx-page_height/2
[ "$current_idx" -lt 1 ] && current_idx=1;
_sellist_compute_first_to_show_idx
;;
($'\C-D')
current_idx=current_idx+page_height/2
[ "$current_idx" -gt "$last_element" ] && current_idx=last_element;
_sellist_compute_first_to_show_idx
;;
(HOME)
current_idx=1
_sellist_compute_first_to_show_idx
;;
(END)
current_idx=last_element
_sellist_compute_first_to_show_idx
;;
(LEFT)
hscroll=hscroll-7
[ "$hscroll" -lt 0 ] && hscroll=0
;;
(RIGHT)
hscroll+=7
;;
(F1)
# This event needs to be enabled
if [[ "${NLIST_ENABLED_EVENTS[(r)F1]}" = "F1" ]]; then
reply=( -1 "$key" )
fi
;;
(F4|F5|F6|F7|F8|F9|F10|DC)
# ignore; F2, F3 are used below
;;
#
# The input
#
($'\b'|$'\C-?'|BACKSPACE)
buffer="${buffer%?}"
;;
($'\C-W')
[ "$buffer" = "${buffer% *}" ] && buffer="" || buffer="${buffer% *}"
;;
($'\C-K')
buffer=""
;;
($'\E')
buffer=""
search=0
_sellist_cursor_visibility 0
;;
(F3)
if [ "$search" = "1" ]; then
search=0
_sellist_cursor_visibility 0
else
search=1
_sellist_cursor_visibility 1
fi
;;
($'\C-O')
uniq_mode=1-uniq_mode
;;
($'\C-F')
(( f_mode=(f_mode+1) % 3 ))
;;
($'\x1F'|F2|$'\C-X')
_sellist_update_from_keywords
;;
($'\C-T')
_sellist_iterate_theme 1
;;
($'\C-G')
_sellist_iterate_theme 0
;;
($'\C-E')
# This event needs to be enabled
if [[ "${NLIST_ENABLED_EVENTS[(r)EDIT]}" = "EDIT" ]]; then
reply=( -1 "EDIT" )
fi
;;
($'\C-A')
_sellist_rotate_buffer
;;
(*)
if [[ $#key == 1 && $((#key)) -lt 31 ]]; then
# ignore all other control keys
else
buffer+="$key"
fi
;;
esac
fi
reply[3]="$current_idx"
reply[4]="$from_what_idx_list_is_shown"
reply[5]="$hscroll"
reply[6]="$search"
reply[7]="$buffer"
reply[8]="$uniq_mode"
reply[9]="$f_mode"
}
#######################################################################################
_sellist_print_with_ansi() {
local win="$1" text="$2" out col chunk Xout
integer text_offset="$3" max_text_len="$4" text_len=0 no_match=0 nochunk_text_len to_skip_from_chunk to_chop_off_from_chunk before_len
# 1 - non-escaped text, 2 - first number in the escaped text, with ;
# 3 - second number, 4 - text after whole escape text
typeset -a c
c=( black red green yellow blue magenta cyan white )
while [[ -n "$text" && "$no_match" -eq 0 ]]; do
if [[ "$text" = (#b)([^$'\x1b']#)$'\x1b'\[([0-9](#c0,2))(#B)(\;|)(#b)([0-9](#c0,2))m(*) ]]; then
# Text for further processing
text="$match[4]"
# Text chunk to output now
out="$match[1]"
# Save color
col="$match[2]"
(( match[3] >= 30 && match[3] <= 37 )) && col="$match[3]"
else
out="$text"
no_match=1
fi
if [ -n "$out" ]; then
################ Expand tabs ################
chunk="$out"
before_len="$text_len"
Xout=""
while [ -n "$chunk" ]; do
[[ "$chunk" = (#b)([^$'\t']#)$'\t'(*) ]] && {
(( all_text_len=((before_len+${#match[1]})/8+1)*8 ))
Xout+="${(r:all_text_len-before_len:: :)match[1]}"
before_len+=all_text_len-before_len
chunk="$match[2]"
} || {
Xout+="$chunk"
break
}
done
#############################################
# Input text length without the current chunk
nochunk_text_len=text_len
# Input text length up to current chunk
text_len+="$#Xout"
# Should start displaying with this chunk?
# I.e. stop skipping left part of the input text?
if (( text_len > text_offset )); then
to_skip_from_chunk=text_offset-nochunk_text_len
# LEFT - is chunk off the left skip boundary? +1 for 1-based index in string
(( to_skip_from_chunk > 0 )) && Xout="${Xout[to_skip_from_chunk+1,-1]}"
# RIGHT - is text off the screen?
if (( text_len-text_offset > max_text_len )); then
to_chop_off_from_chunk=0+(text_len-text_offset)-max_text_len
Xout="${Xout[1,-to_chop_off_from_chunk-1]}"
fi
[ -n "$Xout" ] && zcurses string "$win" "$Xout"
fi
fi
if (( no_match == 0 )); then
if (( col >= 30 && col <= 37 )); then
zcurses attr "$win" $c[col-29]/"$background"
elif [[ "$col" -eq 0 ]]; then
zcurses attr "$win" "$colorpair"
fi
fi
done
}
sel-list-draw() {
integer highlight="$1"
integer page_height="$2"
integer page_width="$3"
local y_offset="$4"
local x_offset="$5"
local text_offset="$6"
local win="$7"
shift 7
integer max_text_len=page_width-x_offset
[[ "$bold" = "0" || "$bold" = "-bold" ]] && bold="-bold" || bold="+bold"
[[ "$active_text" = "underline" || "$active_text" = "reverse" ]] || local active_text="reverse"
# Linux has ncv 18, screen* has ncv 3 - underline won't work properly
(( ${terminfo[ncv]:-0} & 2 )) && active_text="reverse"
# FreeBSD uses TERM=xterm for newcons but doesn't actually support underline
[[ "$TERM" = "xterm" && -z "$DISPLAY" ]] && active_text="reverse"
integer max_idx=page_height
integer end_idx=max_idx
[ "$end_idx" -gt "$#" ] && end_idx="$#"
integer y=y_offset
zcurses attr "$win" "$bold" "$colorpair"
integer i text_len
local text
for (( i=1; i<=end_idx; i++ )); do
zcurses move "$win" $y "$x_offset"
[ "$i" = "$highlight" ] && zcurses attr "$win" +"$active_text"
_sellist_print_with_ansi "$win" "$@[i]" "$text_offset" "$max_text_len"
zcurses clear "$win" eol
[ "$i" = "$highlight" ] && zcurses attr "$win" -"$active_text"
y+=1
done
if [ "$end_idx" -lt "$max_idx" ]; then
zcurses move "$win" $y "$x_offset"
zcurses clear "$win" eol
fi
zcurses attr "$win" white/black
}
#######################################################################################
# Cleanup before any exit
_sellist_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
_sellist_alternate_screen 0
_sellist_cursor_visibility 1
unset _sellist_has_terminfo
}
# Outputs a message in the bottom of the screen
_sellist_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
_sellist_cursor_visibility() {
# NOP, because Ctrl-C will cause problems
return
if type tput 2>/dev/null 1>&2; then
[ "$1" = "1" ] && { tput cvvis; tput cnorm }
[ "$1" = "0" ] && tput civis
elif [ "$_sellist_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 $terminfo[civis]
fi
}
# Reason for this function is that on some systems
# smcup and rmcup are not knowing why left empty
_sellist_alternate_screen() {
[ "$_sellist_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', $'\x1b[?47l\x1b8'
;;
esac
}
_sellist_compute_user_vars_difference() {
if [[ "${(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 "$NLIST_CURRENT_IDX" ] && current_difference+=1 || break
done
fi
}
# List was processed, check if variables aren't off range
_sellist_verify_vars() {
[ "$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
_sellist_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="$last_element"
else
_sellist_compute_user_vars_difference
NLIST_USER_CURRENT_IDX=$(( NLIST_CURRENT_IDX - current_difference ))
NLIST_USER_LAST_ELEMENT=$(( last_element - last_element_difference ))
fi
}
_sellist_colorify_disp_list() {
local col=$'\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 sel-list code
#
sel-list() {
#trap "REPLY=-2; reply=(); return" TERM INT QUIT
trap "_sellist_exit" EXIT
# Check if there is proper input
if [ "$#" -lt 1 ]; then
echo "Usage: sel-list element_1 ..."
return 1
fi
REPLY="-1"
typeset -ga reply
reply=()
integer term_height="$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
_sellist_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 sel-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
_sellist_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"
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)*$~search_pattern*}" )
else
# Patterns will be *foo*~^*bar* and (foo|bar)
search_pattern="${search_buffer// ##/*~^*}"
colsearch_pattern="${search_buffer// ##/|}"
list=( "${(@M)list:#(#i)*$~search_pattern*}" )
fi
done
last_element="$#list"
fi
# Called after processing list
_sellist_verify_vars
fi
_sellist_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
sel-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="$#list"
# Called after processing list
_sellist_verify_vars
fi
# "1" - shouldn't bother with non-selectables
_sellist_setup_user_vars "$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" ] && _sellist_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//$'\n'/\\n}" )
fi
# Output the list
zcurses clear inner
sel-list-draw "$(( (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 [ "$NLIST_IS_SEARCH_MODE" = "1" ]; then
_sellist_status_msg "${_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=" [$NLIST_GREP_STRING]"
_sellist_status_msg "${_txt2}${_txt3}${keywordmsg}${thememsg}Current #$NLIST_USER_CURRENT_IDX (of #$NLIST_USER_LAST_ELEMENT entries)$_txt"
else
_sellist_status_msg "${keywordmsg}${thememsg}"
fi
[ "$border" = "1" ] && zcurses border main
local top_msg=" ${(C)ZSH_NAME} $ZSH_VERSION, $USER "
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
_sellist_status_msg "Inproper input detected"