Initial revision

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 29 insertions, 0 deletions

diff --git a/lib/importenv.rb b/lib/importenv.rb
new file mode 100644
index 0000000000..41253765ea
--- /dev/null
+++ b/lib/importenv.rb
@@ -0,0 +1,29 @@
+# importenv.rb -- imports environment variables as global variables
+#
+# Usage:
+#
+#  require 'importenv'
+#  p $USER
+#  $USER = "matz"
+#  p ENV["USER"]
+
+for k,v in ENV
+  next unless /^[a-zA-Z][_a-zA-Z0-9]*/ =~ k
+  eval <<EOS
+  $#{k} = %q!#{v}!
+  trace_var "$#{k}", proc{|v|
+    ENV[%q!#{k}!] = v; 
+    $#{k} = %q!#{v}!
+    if v == nil
+      untrace_var "$#{k}"
+    end
+  }
+EOS
+end
+
+p $TERM
+$TERM = nil
+p $TERM
+p ENV["TERM"]
+$TERM = "foo"
+p ENV["TERM"]