mirror of https://github.com/dylanaraps/shfm.git
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26 Commits
Author | SHA1 | Date |
---|---|---|
dylan | 696318e947 | |
dylan | 9a968b2c48 | |
dylan | 25d4f809d7 | |
Nathan Sketch | 01ae386143 | |
Nathan Sketch | 1bbd788ee0 | |
Nathan Sketch | 7b21d545b3 | |
Nathan Sketch | ec27f90096 | |
Dylan Araps | 8920178753 | |
dylan | b8efa71b97 | |
dylan | e9fbd754ce | |
Crestwave | 6849998609 | |
Gregory Chamberlain | 2a70030c02 | |
Dylan Araps | 8ad3756a1c | |
Dylan Araps | 2e3fc777b4 | |
Dylan Araps | 0868399d04 | |
Dylan Araps | fa04365aa2 | |
Dylan Araps | 33ce6cce78 | |
Dylan Araps | e55cdf00ac | |
Dylan Araps | efd8a9a233 | |
Dylan Araps | ab3a6932fe | |
Dylan Araps | 0bd79a5f00 | |
dylan | 0b12c5397b | |
Henrik Aalto | d1c1439fa8 | |
Dylan Araps | b9f475ac6b | |
Dylan Araps | 9741e308d5 | |
Dylan Araps | e5fbeb04a0 |
30
README
30
README
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@ -32,13 +32,24 @@ g - go to top
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G - go to bottom
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q - quit
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: - cd to <input>
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/ - search current directory *<input>*
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/ - search current directory <input>*
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- - go to last directory
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~ - go home
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! - spawn shell
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. - toggle hidden files
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? - show help
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Also supported:
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down arrow - down
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up arrow - up
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left arrow - go up level
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right arrow - open file or directory
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backspace - up
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enter - open file or directory
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todo
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________________________________________________________________________________
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@ -65,7 +76,7 @@ rather flexible.
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# store pwd in var on exit
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var=$(shfm)
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# store pwd in a file one exit
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# store pwd in a file on exit
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shfm > file
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For ease of use, a wrapper function can be added to your .shellrc (.bashrc, etc).
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@ -164,9 +175,9 @@ ________________________________________________________________________________
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* VT100/ANSI escape sequences (widely available) are used in place of tput. A
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few non-VT100 sequences /are/ needed however.
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- IL vt102 \033[L: controls upwards scroll. (required)
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- ? xterm \033[?1049[lh]: controls alternate screen. (optional)
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- DECTCEM vt520 \033[?25[lh]: controls cursor visibility. (optional)
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- IL vt102 \033[L: upwards scroll. (required)
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- xterm \033[?1049[lh]: alternate screen. (optional)
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- DECTCEM vt520 \033[?25[lh]: cursor visibility. (optional)
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Why avoid tput?
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@ -244,15 +255,6 @@ ________________________________________________________________________________
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- If input doesn't follow this sequence, 'esc' is reset to '0'.
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* There is no usage of '[' or 'test'.
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Despite these being commonly provided as "shell builtins" (part of the shell),
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a lot of shells still use the external utilities from the coreutils. All usage
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of these has been replaced with 'case' as it is always a "shell keyword".
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This is one of the approaches taken to reduce the need for anything external.
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* Filename escaping works via looping over a string char by char.
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I didn't think this was possible in POSIX shell until I needed to do this in
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67
shfm
67
shfm
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@ -24,6 +24,7 @@ esc() {
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term_setup() {
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stty=$(stty -g)
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stty -icanon -echo
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esc screen_alt h
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esc DECAWM l
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esc DECTCEM l
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esc ED2
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@ -31,10 +32,11 @@ term_setup() {
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}
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term_reset() {
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esc DECAWM h >&2
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esc DECTCEM h >&2
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esc ED2 >&2
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esc DECSTBM >&2
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esc DECAWM h >&2
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esc DECTCEM h >&2
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esc ED2 >&2
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esc DECSTBM >&2
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esc screen_alt l >&2
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stty "$stty"
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# needed for cd-on-exit
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@ -88,14 +90,15 @@ term_scroll_up() {
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}
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cmd_run() {
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esc screen_alt h
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stty "$stty"
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esc DECTCEM h
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esc DECSTBM
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esc ED2
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"$@" ||:
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esc DECSTBM 1 "$((LINES - 2))"
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esc screen_alt l
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esc DECTCEM l
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esc CUP "$y2"
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stty -icanon -echo
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hist=2
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}
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file_escape() {
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@ -118,7 +121,7 @@ hist_search() {
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for file do
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case ${PWD%%/}/$file in
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"$old_pwd") y=$j y2=$((j > bottom ? mid : j)) cur=$file
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"$old_pwd") y=$j y2=$((j >= bottom ? mid : j)) cur=$file
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esac
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j=$((j + 1))
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@ -133,13 +136,21 @@ list_print() {
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end=$((bottom + 1))
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mid=$((bottom / 4 < 5 ? 1 : bottom / 4))
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case $# in
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1) [ -e "$1" ] || [ "$1" = 'no results' ] || set -- empty
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esac
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case $hist in
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1)
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2) # redraw after cmd run
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shift "$((y > y2 ? y - y2 : 0))"
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;;
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1) # redraw after go-to-parent
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hist_search "$@"
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shift "$((y >= bottom ? y - mid : 0))"
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;;
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*)
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*) # everything else
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shift "$((y >= bottom ? y - bottom : 0))"
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;;
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esac
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@ -159,7 +170,7 @@ list_print() {
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i=$((i + 1))
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done
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esc CUP "$((y > bottom ? y2 : y))"
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esc CUP "$((y > y2 ? y2 : y))"
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}
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redraw() {
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@ -183,7 +194,7 @@ status_line() {
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*) printf %s "$ltype"
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esac
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esc SGR
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esc SGR 0 0
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esc DECRC
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}
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@ -225,10 +236,11 @@ line_print() {
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line_format() {
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file_escape "$1"
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esc EL0
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[ -d "$1" ] && esc SGR 1 31
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printf %s "$safe"
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[ -d "$1" ] && printf /
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esc SGR
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esc SGR 0 0
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esc EL0
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printf '\r'
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}
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@ -242,7 +254,7 @@ main() {
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;;
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-v|--version)
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printf 'shfm 0.4.1\n'
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printf 'shfm 0.4.2\n'
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exit 0
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;;
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@ -277,13 +289,14 @@ main() {
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;;
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l?|C2|"$esc") # ARROW RIGHT
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if [ -d "$cur" ] && cd "$cur" >/dev/null 2>&1; then
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if [ -d "$cur" ] && cd -- "$cur" >/dev/null 2>&1; then
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set -- *
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y=1 y2=1 cur=$1 ltype=
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redraw "$@"
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elif [ -e "$cur" ]; then
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cmd_run "${SHFM_OPENER:="${EDITOR:=vi}"}" "$cur"
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redraw "$@"
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fi
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;;
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@ -312,13 +325,14 @@ main() {
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G?)
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y=$#
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y2=$(($# < bottom ? $# : bottom))
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line_print "$y" "$@"
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redraw "$@"
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;;
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.?)
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case ${hidden:=1} in
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1) hidden=0; set -- .[!.]* ;;
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*) hidden=1; set -- * ;;
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1) hidden=0; set -- .* ;;
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0) hidden=1; set -- *
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esac
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y=1 y2=1 cur=$1
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@ -335,7 +349,7 @@ main() {
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'~/'*) ans=$HOME/${ans#"~/"}
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esac
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cd "${ans:="$0"}" >/dev/null 2>&1|| continue
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cd -- "${ans:="$0"}" >/dev/null 2>&1|| continue
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set -- *
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y=1 y2=1 cur=$1
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redraw "$@"
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@ -343,14 +357,24 @@ main() {
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/?)
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prompt / r
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set -- "$ans"*
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IFS=
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# globbing intentional, word splitting is disabled.
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# shellcheck disable=2086
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set -- $ans*
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unset IFS
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case $1$# in
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"$ans*1") set -- 'no results'
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esac
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y=1 y2=1 cur=$1 ltype="search $PWD/$ans*"
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redraw "$@"
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status_line "$#"
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;;
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-?)
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cd "$OLDPWD" >/dev/null 2>&1|| continue
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cd -- "$OLDPWD" >/dev/null 2>&1|| continue
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set -- *
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y=1 y2=1 cur=$1
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redraw "$@"
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@ -367,6 +391,7 @@ main() {
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export SHFM_LEVEL
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SHFM_LEVEL=$((SHFM_LEVEL + 1))
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cmd_run "${SHELL:=/bin/sh}"
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redraw "$@"
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;;
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\??)
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