Node: Syntax of Logical Pathname Namestrings, Next: Logical Pathname Components, Previous: Logical Pathnames, Up: Logical Pathnames
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.