This file is indexed.

/usr/share/zsh/functions/Zle/edit-command-line is in zsh-common 5.3.1-4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
# Edit the command line using your usual editor.
# Binding this to '!' in the vi command mode map,
#   autoload -Uz edit-command-line
#   zle -N edit-command-line
#   bindkey -M vicmd '!' edit-command-line
# will give ksh-like behaviour for that key,
# except that it will handle multi-line buffers properly.

() {
  exec </dev/tty

  # Compute the cursor's position in bytes, not characters.
  setopt localoptions nomultibyte noksharrays

  (( $+zle_bracketed_paste )) && print -r -n - $zle_bracketed_paste[2]

  # Open the editor, placing the cursor at the right place if we know how.
  local editor=${${VISUAL:-${EDITOR:-vi}}}
  case $editor in 
    (*vim*)
      integer byteoffset=$(( $#PREBUFFER + $#LBUFFER + 1 ))
      ${=editor} -c "normal! ${byteoffset}go" -- $1;;
    (*emacs*)
      local lines=( ${(f):-"$PREBUFFER$LBUFFER"} )
      ${=editor} +${#lines}:$((${#lines[-1]} + 1)) $1;;
    (*) ${=editor} $1;;
  esac

  (( $+zle_bracketed_paste )) && print -r -n - $zle_bracketed_paste[1]

  # Replace the buffer with the editor output.
  print -Rz - "$(<$1)" 
} =(<<<"$PREBUFFER$BUFFER")

zle send-break		# Force reload from the buffer stack