#!/bin/bash
#<pre><b>
# Script     : titles
# Version    : 2.1
# Author     : Roland Rashleigh-Berry
# Date       : 11-Mar-2007
# Purpose    : To create the titles file defined to "prog" and to edit it if a
#              call to an editor is made.
# SubScripts : crtitlestmpl
# Notes      : You must have set up the system environment variable "prog"
#              to your sas program name (no extension) and have exported it.
# Usage      : titles
#===============================================================================
# PARAMETERS:
#-pos- -------------------------------description-------------------------------
# N/A  Do not supply any parameters
#===============================================================================
# AMENDMENT HISTORY:
# init --date-- mod-id ----------------------description------------------------
# rrb  25Feb07         Editor call removed. Feel free to add a call to an editor
#                      to edit the titles file as a last background task.
# rrb  11Mar07         Editor call added again if something defined to EDITOR
#                      system environment variable (v2.1)
#===============================================================================
# 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.
#===============================================================================

# No parameters allowed
if [ $# -gt 0 ] ; then
  echo "Error: (titles) Do not supply any parameters" 1>&2
  exit 2
fi

if [ -z $prog ] ; then
  echo "You have to set \"prog\" equal to your sas program name and export it" 1>&2
  exit 1
fi

newprog=${prog%.*}

if [ ! -f ${prog%.*}.titles ] ; then
  if [ ! -f titles.template ] ; then
    crtitlestmpl
  fi
  sed "s/^program:/program: $newprog/" titles.template > ${newprog}.titles
  echo "The file ${newprog}.titles has just been created" 1>&2
fi

if [ -n "$EDITOR" ] ; then
  if [ "$EDITOR" == "vi" ] ; then
    # done in terminal window
    $EDITOR ${newprog}.titles
  else
    # done as a background task
    $EDITOR ${newprog}.titles &
  fi
fi