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author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1999-08-13 05:45:20 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1999-08-13 05:45:20 +0000 |
commit | 07bb9f21f56b0d066c44c62b0e6be35eb0e0fd51 (patch) | |
tree | 082bb7d5568f3b2e36e3fe166e9f3039394fcf44 /lib/Env.rb | |
parent | f746453a4ae16f643b2ae8c0d6ec77a2e63b4eb1 (diff) | |
download | ruby-07bb9f21f56b0d066c44c62b0e6be35eb0e0fd51.tar.gz ruby-07bb9f21f56b0d066c44c62b0e6be35eb0e0fd51.tar.xz ruby-07bb9f21f56b0d066c44c62b0e6be35eb0e0fd51.zip |
1.4.0
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/Env.rb')
-rw-r--r-- | lib/Env.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/Env.rb b/lib/Env.rb new file mode 100644 index 000000000..b3ee3bae8 --- /dev/null +++ b/lib/Env.rb @@ -0,0 +1,31 @@ +# Env.rb -- imports environment variables as global variables +# +# Usage: +# +# require 'Env' +# 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 + +if __FILE__ == $0 + p $TERM + $TERM = nil + p $TERM + p ENV["TERM"] + $TERM = "foo" + p ENV["TERM"] +end |