# You are allowed to redistribute it and sell it, alone or is a part of
# another product.
-import symbol
+# Access to the environment variables of the process
+module environ
+
+import string
+import file
# TODO prevoir une structure pour recup tout un environ, le modifier et le passer a process
-redef class Symbol
- # Return environement valued for this symbol
- meth environ: String
+redef class String
+ # Return environment value for the symbol.
+ # If there is no such environment variable, then return ""
+ #
+ # assert "PATH".environ != ""
+ # assert "NIT %\n".environ == ""
+ fun environ: String
do
- environ_default = "" # FIXME: Why this ?!?
- return new String.from_cstring(to_s.to_cstring.get_environ)
+ var res = self.to_cstring.get_environ
+ # FIXME: There is no proper way to handle NULL C string yet. What a pitty.
+ var nulstr = once ("".to_cstring.get_environ)
+ if res != nulstr then
+ return res.to_s
+ else
+ return ""
+ end
end
- # set environement value for this symbol
- meth environ=(v: String) do to_s.to_cstring.set_environ(v.to_cstring, 1)
-
- # set default environement value for this symbol
- meth environ_default=(v: String) do to_s.to_cstring.set_environ(v.to_cstring, 0)
-
- # Unset the environement value of this symbol
- meth unset do to_s.to_cstring.unset_environ
+ # Set the enviroment value of a variable.
+ #
+ # "NITis".setenv("fun")
+ # assert "NITis".environ == "fun"
+ fun setenv(v: String) do to_cstring.setenv( v.to_cstring )
+
+ # Search for the program `self` in all directories from `PATH`
+ fun program_is_in_path: Bool
+ do
+ var full_path = "PATH".environ
+ var paths = full_path.split(":")
+ for path in paths do if path.file_exists then
+ if path.join_path(self).file_exists then return true
+ end
+
+ return false
+ end
end
redef class NativeString
-# Refinned to add environement bindings
- private meth get_environ: NativeString is extern "string_NativeString_NativeString_get_environ_0"
- private meth put_environ is extern "string_NativeString_NativeString_put_environ_0" # this one is a bit compilcated to use ... so we dosen't use
- private meth unset_environ is extern "string_NativeString_NativeString_unset_environ_0"
- private meth set_environ(value : NativeString, overwrite : Int) is extern "string_NativeString_NativeString_set_environ_2"
+ private fun get_environ: NativeString is extern "string_NativeString_NativeString_get_environ_0"
+ private fun setenv( v : NativeString ) is extern "string_NativeString_NativeString_setenv_1"
end