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 " newest-word—The six character sequence " 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. |