updated man page

sfm

@@ -22,36 +22,15 @@ file_colour() {
     _fc_ext="${_fc_name##*.}"
     _fc_ext=$(printf '%s' "$_fc_ext" | tr '[:upper:]' '[:lower:]')
     # executable?
-    [ -x "${CWD}/${_fc_name}" ] && { printf '%s' "${RED}${BOLD}"; return; }
-    case "$_fc_ext" in
-        # images
-        jpg|jpeg|png|gif|bmp|tiff|tif|webp|svg|ico|heic|heif|avif)
-            printf '%s' "${MAGENTA}" ;;
-        # video
-        mp4|mkv|avi|mov|wmv|flv|webm|m4v|mpeg|mpg|3gp|ogv)
-            printf '%s' "${MAGENTA}${BOLD}" ;;
-        # audio
-        mp3|flac|ogg|wav|aac|m4a|opus|wma|aiff)
-            printf '%s' "${CYAN}${BOLD}" ;;
-        # archives
-        zip|tar|gz|bz2|xz|zst|7z|rar|tgz|tbz2)
-            printf '%s' "${RED}" ;;
-        # documents / text
-        pdf|doc|docx|odt|xls|xlsx|ods|ppt|pptx|odp)
-            printf '%s' "${YELLOW}" ;;
-        # code / scripts
-        sh|bash|zsh|fish|py|rb|pl|lua|js|ts|jsx|tsx|\
-        c|h|cpp|cc|cxx|hpp|rs|go|java|kt|swift|cs|php|r)
-            printf '%s' "${GREEN}" ;;
-        # data / config
-        json|xml|yaml|yml|toml|ini|conf|cfg|env)
-            printf '%s' "${CYAN}" ;;
-        # markdown / text
-        md|markdown|rst|txt|log)
-            printf '%s' "${WHITE}" ;;
-        # default
-        *) printf '%s' "${WHITE}" ;;
-    esac
+    [ -x "${CWD}/${_fc_name}" ] && { printf '%s' "${GREEN}${BOLD}"  ; return; }
+    # node device?
+    [ -c "${CWD}/${_fc_name}" ] && { printf '%s' "${MAGENTA}${BOLD}"; return; }
+    # block device?
+    [ -b "${CWD}/${_fc_name}" ] && { printf '%s' "${MAGENTA}${BOLD}"; return; }
+    # readable?
+    [ -r "${CWD}/${_fc_name}" ] || { printf '%s' "${RED}${BOLD}"    ; return; }
+    # writable?
+    [ -w "${CWD}/${_fc_name}" ] || { printf '%s' "${RED}${BOLD}"    ; return; }
 }
 
 goto()        { printf '\033[%d;%dH' "$1" "$2"; }
@@ -265,40 +244,42 @@ apply_filter() {
     if [ -z "$FILTER" ]; then
         ENTRIES="$ALL_ENTRIES"
         COUNT="$ALL_COUNT"
-        return
-    fi
-    ENTRIES=""
-    COUNT=0
-    printf '%s\n' "$ALL_ENTRIES" | while IFS= read -r line; do
-        case "$line" in
-            *"$FILTER"*) printf '%s\n' "$line" ;;
-        esac
-    done | {
-        while IFS= read -r line; do
-            ENTRIES="$ENTRIES
-$line"
-            COUNT=$((COUNT + 1))
-        done
-        # write back via temp — subshell can't modify parent vars directly
-        printf '%s\n' "$COUNT" > /tmp/_fm_count
-        printf '%s' "$ENTRIES" > /tmp/_fm_entries
-    }
-    COUNT=$(cat /tmp/_fm_count 2>/dev/null || echo 0)
-    ENTRIES=$(cat /tmp/_fm_entries 2>/dev/null || echo "")
-    ENTRIES="${ENTRIES#
+    else
+        ENTRIES=""
+        COUNT=0
+        _rest="$ALL_ENTRIES"
+        while [ -n "$_rest" ]; do
+            _line="${_rest%%
+*}"; _next="${_rest#*
 }"
+            [ "$_next" = "$_rest" ] && _next=""
+            _rest="$_next"
+            [ -z "$_line" ] && continue
+            case "$_line" in
+                *"$FILTER"*)
+                    if [ -z "$ENTRIES" ]; then ENTRIES="$_line"
+                    else ENTRIES="$ENTRIES
+$_line"; fi
+                    COUNT=$((COUNT + 1)) ;;
+            esac
+        done
+    fi
+    # write to tmp file for O(1) line access in get_entry
+    printf '%s\n' "$ENTRIES" > /tmp/_sfm_list
 }
 
 get_entry() {
-    printf '%s\n' "$ENTRIES" | awk -v n="$(($1 + 1))" 'NR==n{print; exit}'
+    sed -n "$(($1 + 1))p" /tmp/_sfm_list
 }
 
 # find index of entry by name (0-based), returns -1 if not found
 find_entry() {
-    printf '%s\n' "$ENTRIES" | awk -v name="$1" '
-        { if ($0 == name) { print NR-1; found=1; exit } }
-        END { if (!found) print -1 }
-    '
+    _fe_n=$(grep -n "^${1}$" /tmp/_sfm_list 2>/dev/null | head -1 | cut -d: -f1)
+    if [ -n "$_fe_n" ]; then
+        printf '%d' $((_fe_n - 1))
+    else
+        printf '%d' -1
+    fi
 }
 
 # is entry name in SELECTED list?
@@ -362,16 +343,22 @@ render_row() {
     entry=$(get_entry "$_idx")
 
     case "$entry" in
-        */) colour="${GREEN}${BOLD}" ;;
+        */) colour="${BLUE}${BOLD}" ;;
         *@)
             _name="${entry%@}"
-            # broken symlink if target doesn't exist
             if [ -e "${CWD}/${_name}" ]; then
-                colour="${MAGENTA}${BOLD}"
+                colour="${CYAN}${BOLD}"
             else
                 colour="${RED}${BOLD}"
             fi ;;
-        *)  colour=$(file_colour "$entry") ;;
+        *)
+            _fc="${CWD}/${entry}"
+            if   [ -x "$_fc" ]; then colour="${GREEN}${BOLD}"
+            elif [ -c "$_fc" ]; then colour="${MAGENTA}${BOLD}"
+            elif [ -b "$_fc" ]; then colour="${MAGENTA}${BOLD}"
+            elif [ ! -r "$_fc" ] || [ ! -w "$_fc" ]; then colour="${RED}${BOLD}"
+            else colour="${WHITE}"
+            fi ;;
     esac
 
     # multi-select marker
@@ -403,17 +390,21 @@ render_row() {
     if [ "$SHOW_DETAILS" = "1" ]; then
         _path="${CWD}/${entry%/}"; _path="${_path%@}"
         _info=$(ls -ldh "$_path" 2>/dev/null)
-        _sz=$(printf '%s' "$_info" | awk '{print $5}')
-        _dt=$(printf '%s' "$_info" | awk '{print $6, $7}')
-        # fixed width: size=6, date=6 → total detail = 14 chars
+        # parse ls output with parameter expansion — no awk fork
+        set -- $_info
+        _sz=$5; _dt="$6 $7"
         _detail=$(printf ' %6s  %-6s' "$_sz" "$_dt")
+        set --
     fi
 
     # layout: marker(1) + name + spaces + detail
     _dlen=${#_detail}
-    maxw=$((_cols - 1 - _dlen - 1))
+    maxw=$((_cols - 2 - _dlen))
     if [ "${#display}" -gt "$maxw" ]; then
-        display=$(printf '%s' "$display" | cut -c1-$((_cols - _dlen - 4)))
+        _trunc=$((maxw - 3))
+        while [ "${#display}" -gt "$_trunc" ]; do
+            display="${display%?}"
+        done
         display="${display}..."
     fi
     _namew=$((${#display} + 1))   # 1 for marker
@@ -471,7 +462,7 @@ draw_preview() {
                 _dl=" ${_dn}/"
                 [ "${#_dl}" -gt "$((_pw - 1))" ] && _dl="$(printf '%s' "$_dl" | cut -c1-$((_pw-2)))~"
                 goto "$_pr" "$_px"
-                printf '%s%s%s' "${GREEN}${BOLD}" "$_dl" "${RESET}"
+                printf '%s%s%s' "${BLUE}${BOLD}" "$_dl" "${RESET}"
                 _pr=$((_pr + 1))
             done
             for _fe in "$_path"/*; do
@@ -684,15 +675,21 @@ draw() {
 read_key() {
     IFS= read -r -n1 key 2>/dev/null || IFS= read -r key
     if [ "$key" = "$(printf '\033')" ]; then
-        # peek at next char with a very short timeout
         IFS= read -r -n1 -t 0.1 _k2 2>/dev/null || _k2=""
         if [ -z "$_k2" ]; then
-            # nothing followed — bare esc
             printf '\033'; return
         fi
-        # got a second char — read one more for full sequence (e.g. [A [B [C [D)
         IFS= read -r -n1 -t 0.1 _k3 2>/dev/null || _k3=""
-        key="${key}${_k2}${_k3}"
+        # if sequence ends with ~, it may have more chars — read one more
+        case "${_k2}${_k3}" in
+            '['[0-9])
+                IFS= read -r -n1 -t 0.1 _k4 2>/dev/null || _k4=""
+                key="${key}${_k2}${_k3}${_k4}"
+                ;;
+            *)
+                key="${key}${_k2}${_k3}"
+                ;;
+        esac
     fi
     printf '%s' "$key"
 }
@@ -1654,7 +1651,7 @@ do_paste() {
 }
 
 # --- main ---
-trap 'restore_term; show_cursor; printf "\033[2J\033[H"; exit 0' INT TERM EXIT
+trap 'restore_term; show_cursor; printf "\033[2J\033[H"; rm -f /tmp/_sfm_list /tmp/_sfm_find; exit 0' INT TERM EXIT
 
 setup_term
 hide_cursor
@@ -1674,6 +1671,7 @@ while true; do
         G)  SEL=$((COUNT - 1)) ;;
         "$(printf '\033[6~')") SEL=$((SEL + $(term_rows) / 2)) ;;
         "$(printf '\033[5~')") SEL=$((SEL - $(term_rows) / 2)) ;;
+        "$(printf '\033[3~')") do_delete ;;
         "$(printf '\n')"|\
         "$(printf '\r')"|\
         "$(printf '\033[C')"|\

sfm.1

@@ -43,6 +43,16 @@ Go to home directory.
 .TP
 .B \`
 Jump to previous directory (toggle).
+.TP
+.B :
+Prompt for a path to jump to directly. Supports
+.B ~
+expansion. Shows an error if the path does not exist. Press esc to cancel.
+.TP
+.B f
+Find files recursively under the current directory. Opens an interactive
+picker. Press j/k or arrows to navigate results, enter or l to jump to the
+selected result, esc/q/h to close.
 
 .SS Search and Filter
 .TP
@@ -58,7 +68,9 @@ Exit search mode while keeping the current filter active.
 .SS Display Toggles
 .TP
 .B .
-Toggle hidden files (dotfiles).
+Toggle hidden files (dotfiles). Hidden entries appear before regular
+entries (hidden dirs, then regular dirs, then hidden files, then
+regular files).
 .TP
 .B T
 Toggle size/date detail column.
@@ -86,7 +98,7 @@ Create a new directory. Press esc to cancel.
 .B n
 Create a new empty file. Press esc to cancel.
 .TP
-.B d
+.B d " or " del
 Delete selected entry or all multi-selected entries.
 Non-empty directories require a second confirmation.
 .TP
@@ -98,6 +110,14 @@ Open the trash directory.
 .TP
 .B o
 Open selected file with a custom program. Press esc to cancel.
+.TP
+.B +
+Make the selected file executable
+.RB ( "chmod +x" ).
+.TP
+.B \-
+Remove execute permission from the selected file
+.RB ( "chmod -x" ).
 
 .SS Clipboard
 .TP
@@ -109,9 +129,11 @@ Cut selected entry or all multi-selected entries.
 .TP
 .B p
 Paste clipboard contents into the current directory.
+Auto-renames on conflict by appending
+.IR _copy .
 .TP
 .B c
-Copy the full path of selected entry to the system clipboard.
+Copy the full path of the selected entry to the system clipboard.
 Requires
 .BR wl-copy ", " xclip ", " xsel ", or " pbcopy .
 
@@ -122,6 +144,9 @@ Toggle multi-select on the current entry (cursor advances).
 .TP
 .B a
 Select all entries / deselect all.
+.PP
+Multi-select works with
+.BR y ", " x ", and " d .
 
 .SS Bookmarks
 .TP
@@ -139,7 +164,8 @@ Drop into
 .B $SHELL
 in the current directory. Type
 .I exit
-to return to sfm.
+to return to sfm. The working directory is updated if you cd elsewhere
+in the shell.
 .TP
 .B ?
 Show the keyboard shortcuts help overlay.
@@ -186,6 +212,9 @@ case "$1" in
 esac
 .fi
 .PP
+Make it executable with:
+.B chmod +x ~/.config/sfm/opener
+.PP
 If the opener script does not exist, sfm falls back to its built-in
 smart opener which detects file types by extension and MIME type.
 
@@ -335,11 +364,13 @@ s() { cd "$(sfm)"; }
 .fi
 
 .SH AUTHORS
-Built interactively with Claude (Anthropic).
+Emmett1 <me@emmett1.my> with help of AI.
 
 .SH SEE ALSO
+.BR find (1),
 .BR ls (1),
 .BR mv (1),
 .BR cp (1),
 .BR rm (1),
+.BR chmod (1),
 .BR vi (1)