#--------------------------------------------------------------------------
#    Name: lsPath.jy
#    Role: Script to display delimited environment variable values
#          one per line.
#
#  Author: Robert A. (Bob) Gibson [rag] - bgibson@us.ibm.com
#
#   Usage: jython lsPath.jy [Path-Environment-Variable]
#
# Example: lsPath classpath
#
# History:
#
#   When   Ver Who What
# -------- --- --- -----------------------------------------------------
# 04/10/07 0.0 rag New - Based strictly upon personal needs & requirements
#--------------------------------------------------------------------------

"""lsPath - Display delimited environment variables in an easy to read format"""

from os  import environ, path, pathsep
from sys import argv

Name  =  path.split( argv[ 0 ] )[ 1 ] 
if not Name : Name = "lsPath.jy"
Usage = "Usage: jython " + Name + " [Path-Environment-Variable]"

def main( EnvVar = None ) :
  """lsPath()
Display Environment variable values in an easier to read format"""
  if EnvVar == None :
    EnvVar = "PATH"
  else :
    EnvVar = EnvVar.upper()
  try :
    Path = environ[ EnvVar ].split( pathsep )
    print EnvVar + "="
    for dir in Path :
      print "  " + dir
  except :
    print "Unknown ENV variable: " + EnvVar
  
if __name__ == "__main__" :
  if len( argv ) == 1 :
    main()
  elif len( argv ) == 2 :
    main( argv[ 1 ] )
  else :
    print Usage