#!/bin/bash
#<pre><b>
# Script     : mhdr
# Version    : 1.0
# Author     : Roland Rashleigh-Berry
# Date       : 18-Feb-2007
# Purpose    : To create a standard SAS macro header
# SubScripts : getname
# Notes      : This shell script generates a SAS macro header for a sas macro
#              in the current directory and places it at the top of the code if
#              the macro exists. If invoked without a following program name 
#              then the user will be prompted to enter the name. 
# Usage      : mhdr
#              mhdr progname
#===============================================================================
# PARAMETERS:
#-pos- -------------------------------description-------------------------------
#  1   macro name (optional)
#===============================================================================
# AMENDMENT HISTORY:
# init --date-- mod-id ----------------------description------------------------
# rrb  18Feb07         SAS version changed to 9.1.3
#===============================================================================
# This is public domain software. No guarantee as to suitability or accuracy is
# given or implied. User uses this code entirely at their own risk.
#===============================================================================

# prompt for the program name if not supplied
if [ $# -lt 1 ]
then
  echo -n "Enter program name: "
  read progname
else
  progname=$1
fi

# make sure program name has ".sas" at the end
progname=`echo $progname | awk -F. '{print $1 ".sas"}'`

# prompt for the program purpose
echo -n "Enter program purpose: "
read purpose

# use "getname" to find out the full name of the person invoking this script
author=`getname`

# format today's date in DD-Mon-YYYY form
date=`date '+%d-%b-%Y'`


# write out the following to a file until "FINISH" is encountered
cat > $HOME/mhdr.tmp << FINISH
/*
/ Program      : $progname
/ Version      : 1.0
/ Author       : $author
/ Date         : $date
/ SAS version  : 9.1.3
/ Purpose      : $purpose
/ SubMacros    : none
/ Notes        : 
/ Usage        : 
/ 
/===============================================================================
/ PARAMETERS:
/-------name------- -------------------------description------------------------
/ 
/===============================================================================
/ AMENDMENT HISTORY:
/ init --date-- mod-id ----------------------description------------------------
/ 
/=============================================================================*/

FINISH

# if the program already exists then add the header to the top,
# otherwise just create the program out of the generated header
if [ -f $progname ]
then
  cat $HOME/mhdr.tmp $progname > $HOME/mhdr2.tmp
  rm -f $progname
  cat $HOME/mhdr2.tmp > $progname
  rm -f $HOME/mhdr2.tmp
else
  cat $HOME/mhdr.tmp > $progname
  echo "created $progname"
fi

# delete the temporary file
rm -f $HOME/mhdr.tmp