Started working on file size support.

fff

@@ -162,6 +162,29 @@ status_line() {
            "$LINES"
 }
 
+get_file_sizes() {
+    # Get sizes of files.
+    [[ -z ${files[*]} ]] &&
+        return
+
+    IFS=$'\n' read -d "" -ra file_sizes < <(du -ks "${files[@]}")
+    file_sizes=("${file_sizes[@]//[[:space:]]*}")
+
+    # Find the longest file size.
+    for size in "${file_sizes[@]}"; do
+        ((${#size} > max_size)) &&
+            ((max_size=${#size}))
+    done
+
+    # Convert byte formatted sizes to human-readable.
+    for i in "${!file_sizes[@]}"; do
+        case "${file_sizes[i]}" in
+            ???|??|?) file_sizes[i]+="KB" ;;
+            *) file_sizes[i]="$((file_sizes[i]/1024))MB" ;;
+        esac
+    done
+}
+
 read_dir() {
     # Read a directory to an array and sort it directories first.
     local dirs=()
@@ -187,11 +210,16 @@ read_dir() {
 
     list=("${dirs[@]}" "${files[@]}")
 
+    # Retrieve file sizes if enabled.
+    ((${FFF_SHOW_SIZE:=1} == 1)) &&
+        get_file_sizes
+
     # Indicate that the directory is empty.
     [[ -z ${list[0]} ]] &&
         list[0]="empty"
 
     ((list_total=${#list[@]}-1))
+    ((dir_total=${#dirs[@]}))
 
     # Save the original dir in a second list as a backup.
     cur_list=("${list[@]}")
@@ -277,7 +305,14 @@ print_line() {
     # Remove all non-printable characters.
     file_name="${file_name//[^[:print:]]/^[}"
 
-    printf '\r%b%s\e[m\r' "$format" "${file_name}${suffix}"
+    ((${FFF_SHOW_SIZE:=1} == 1)) && [[ -f ${list[$1]} ]] && {
+        local file_size="${file_sizes[$1-dir_total]}"
+        file_name="${file_name:0:$((COLUMNS-max_size-1))}"
+    }
+
+    printf '\r%b%s\e[m\e[%sC\e[%sD%s\r' \
+        "$format" "${file_name}${suffix}" \
+        "$COLUMNS" "${#file_size}" "$file_size"
 }
 
 draw_dir() {