Grep output with tree format (Bash function)

treegrep()

# Bash function
# 
# usage: treegrep GREPOPTIONS "pattern"
treegrep() {
    # grep:
    #   --recursive             like --directories=recurse
    #   --files-with-match      print only names of FILEs with selected lines
    # tree:
    #   --fromfile              Reads paths from files (.=stdin)
    #   -F                      Appends '/', '=', '*', '@', '|' or '>' as per ls -F.
    grep --recursive --files-with-match "${@}" |
        tree --fromfile -F
}