Overlay tput to make it work portably

tput

# Detect if our version of 'tput' is so old that it uses termcap syntax
# If this is the case, overlay it so that newer terminfo style syntax works
# Inspired by 'bashlib' and 'liquidprompt'
# For performance we only implement if 'tput ce' (a harmless test) works
if tput ce 2>/dev/null; then
  tput() {
    ctput-null() { command tput "${@}" 2>/dev/null; }
    ctput() { command tput "${@}"; }
    case "${1}" in
      (blink)         ctput-null blink || ctput mb;;
      (bold)          ctput-null bold  || ctput md;;
      (civis)         ctput-null civis || ctput vi;;
      (cnorm)         ctput-null cnorm || ctput ve;;
      (cols)          ctput-null cols  || ctput co;;
      (dim)           ctput-null dim   || ctput mh;;
      (ed)            ctput-null ed    || ctput cd;;
      (el)            ctput-null el    || ctput ce;;
      (el1)           ctput-null el1   || ctput cb;;
      (lines)         ctput-null lines || ctput li;;
      (ritm)          ctput-null ritm  || ctput ZR;;
      (rmcup)         ctput-null rmcup || ctput te;;
      (rmso)          ctput-null rmso  || ctput se;;
      (rmul)          ctput-null rmul  || ctput ue;;
      (setaf)
        case $(uname) in
          (FreeBSD)   ctput AF "${2}";;
          (OpenBSD)   ctput AF "${2}" 0 0;;
          (*)         ctput setaf "${2}";;
        esac
      ;;
      (setab)
        case $(uname) in
          (FreeBSD)   ctput AB "${2}";;
          (OpenBSD)   ctput AB "${2}" 0 0;;
          (*)         ctput setab "${2}";;
        esac
      ;;
      (sgr0)          ctput-null sgr0  || ctput me;;
      (sitm)          ctput-null sitm  || ctput ZH;;
      (smcup)         ctput-null smcup || ctput ti;;
      (smso)          ctput-null smso  || ctput so;;
      (smul)          ctput-null smul  || ctput us;;
      (*)             ctput "${@}";;
    esac
  }
fi