= Wordexp

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The Wordexp module only includes the wordexp method and WRDE_* constants. 
Include this module into any class to use the wordexp method.

call-seq:
  include Wordexp
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= Constants:

WRDE_NOCMD:
  WRDE_NOCMD Do not do command substition.  Command-substition is enabled by
  default, so it is possible to read the standard output of arbitrary
  commands.

WRDE_SHOWERR:
  WRDE_SHOWERR Do not redirect stderr to /dev/null when performing command
  substition.  Normally, stderr is directed to /dev/null.

WRDE_UNDEF:
  WRDE_UNDEF Causes WordexpError::Badval to be raised if an undefined
  environment variable is used.  Otherwise undefined variables will evaluate
  to an empty string


= Instance methods:

  wordexp

= Wordexp#wordexp

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  wordexp("hello $(echo world)")           -> [ "hello", "world" ]
  wordexp("untrusted string", WRDE_NOCMD)  -> [ "untrusted", "string" ]

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wordexp performs word expansion like a POSIX-shell