quote-safe way to extract field(s) from a csv using awk (bashfunction)

csvget.bash

# usage: cat my.csv | csvget 2     (outputs: "foo bar")
# @dependency: gawk

[[ ! -n $SEP ]] && SEP=','
[[ ! -n $SEPOUT ]] && SEPOUT=$SEP

csvget(){
  local fields="$*" ; fields="\$${fields// /\"$SEPOUT\"\$}"
  cat - | sed 's/""/" "/g' | gawk -vFS='^"|"'$SEP'"|"$|"'$SEP'|'$SEP'"|'$SEP '{ sub(".*" $1 FS,""); print '${fields}' }'                                      
}

csvget "$@"