#!/usr/bin/ksh93
################################################################
function usagemsg_evenodd_k93 {
  print "
Program: evenodd_k93

The evenodd_k93 Korn Shell command/function examines a number
from the command line and returns a 0 or 1 to indicate even or odd.
Optionally will return the word "even" or "odd" to standard output.

Usage: ${1##*/} [-v] [-V] [-?] -n NUMBER

            Where:
                 '-n NUMBER' = Number to examine for even or odd
                 '-v' = Verbose mode, return word "even" or "odd"
                 '-V' = Very Verbose Mode

Author: Dana French (dfrench@mtxia.com)    Copyright 2004

\"AutoContent\" enabled"
return 0
}
################################################################
#### 
#### Description:
#### 
#### Assumptions:
#### 
#### Dependencies:
#### 
#### Products:
#### 
#### Configured Usage:
#### 
#### Details:
#### 
################################################################
function evenodd_k93 {
  typeset TRUE="0"
  typeset FALSE="1"
  typeset VERBOSE="${FALSE}"
  typeset VERYVERB="${FALSE}"
  typeset NUMBER=""

  while getopts ":n#vV" OPTION
  do
      case "${OPTION}" in
          'n') NUMBER="${OPTARG}";;
          'v') VERBOSE="${TRUE}";;
          'V') VERYVERB="${TRUE}";;
          '?') usagemsg_evenodd_k93 "${0}" && return 1;;
          ':') print -u 2 "ERROR: Invalid option argument, not a number"
               usagemsg_evenodd_k93 "${0}"
               return 1;;
      esac
  done
   
  shift $(( ${OPTIND} - 1 ))
  
  trap 'usagemsg_evenodd_k93 ${0}' EXIT
  [[ "_${NUMBER}" = "_" ]] &&
      print -u 2 "ERROR: Number not specified" &&
      exit -1
  trap '-' EXIT

  (( VERYVERB == TRUE )) && set -x
  
################################################################
  
  case ${NUMBER} in
      *[02468]) (( VERBOSE == TRUE )) && print "even"
                return 0;;
      *[13579]) (( VERBOSE == TRUE )) && print "odd"
                return 1;;
      *) (( VERBOSE == TRUE )) && print -u 2 "ERROR: Not a number"
                return -2;;
  esac
  return -3
}
################################################################

evenodd_k93 "${@}"