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| ANSI Common Lisp 19 Filenames 19.3 Logical Pathnames ### 19.3.1 Syntax of Logical Pathname Namestrings The syntax of a logical pathname namestring is as follows. (Note that unlike many notational descriptions in this document, this is a syntactic description of character sequences, not a structural description of objects.) logical-pathname::= [host host-marker] [relative-directory-marker] `{`directory directory-marker`}`* [name] [type-marker type [version-marker version]] host::= word directory::= word | wildcard-word | wild-inferiors-word name::= word | wildcard-word type::= word | wildcard-word version::= pos-int | newest-word | wildcard-version host-marker - a colon. relative-directory-marker - a semicolon. directory-marker - a semicolon. type-marker - a dot. version-marker - a dot. wild-inferiors-word - The two character sequence "`**`" (two asterisks). newest-word - The six character sequence "`newest`" or the six character sequence "`NEWEST`". wildcard-version - an asterisk. wildcard-word - one or more asterisks, uppercase letters, digits, and hyphens, including at least one asterisk, with no two asterisks adjacent. word - one or more uppercase letters, digits, and hyphens. pos-int - a positive integer. 19.3.1.1 Additional Information about Parsing Logical Pathname Namestrings

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