method

expand_environ

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expand_environ(str) public

Replace %w+% into the environment value of what is contained between the %‘s This method is used for REG_EXPAND_SZ.

For detail, see expandEnvironmentStrings Win32 API.

# File ext/dl/win32/lib/win32/registry.rb, line 332
    def self.expand_environ(str)
      str.gsub(/%([^%]+)%/) { ENV[$1] || ENV[$1.upcase] || $& }
    end

expand_environ

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