It is actually fairly common in programming-languages for an identifier (such as "next" or "dir") to have multiple meanings depending on the context in which they are used. Furthermore, the Perl language (again, in a manner typical of its genre) defers many aspects of the name-resolution process to very late, at runtime.
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
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horizontal scrolling (and possible janitor
intervention).
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