lib/standard/environ.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2006 Floréal Morandat <morandat@lirmm.fr>
   4 # Copyright 2008 Jean Privat <jean@pryen.org>
   5 #
   6 # This file is free software, which comes along with NIT.  This software is
   7 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   8 # without  even  the implied warranty of  MERCHANTABILITY or  FITNESS FOR A
   9 # PARTICULAR PURPOSE.  You can modify it is you want,  provided this header
  10 # is kept unaltered, and a notification of the changes is added.
  11 # You  are  allowed  to  redistribute it and sell it, alone or is a part of
  12 # another product.
  13
  14 # Acces of the environement variables of the process
  15 import symbol
  16
  17 # TODO prevoir une structure pour recup tout un environ, le modifier et le passer a process
  18
  19 redef class Symbol
  20         # Return environement valued for this symbol
  21         fun environ: String
  22         do
  23                 var res = to_s.to_cstring.get_environ
  24                 # FIXME: There is no proper way to handle NULL C string yet. What a pitty.
  25                 var nulstr = once ("".to_cstring.get_environ)
  26                 if res != nulstr then
  27                         return new String.from_cstring(res)
  28                 else
  29                         return ""
  30                 end
  31         end
  32 end
  33
  34 redef class NativeString
  35 # Refinned to add environement bindings
  36         private fun get_environ: NativeString is extern "string_NativeString_NativeString_get_environ_0"
  37 end