Case class to represent a "flag", a.k.a.
Case class to represent a "flag", a.k.a. option.
TEST
the single-character string which is the name of this flag
An argument can be made up of alphabetic and numeric characters, including "." but not "-"
An argument can be made up of alphabetic and numeric characters, including "." but not "-"
TODO should make this more flexible.
a Parser[Argument]
"flag" is the old name for an "option"
"flag" is the old name for an "option"
a Parser[Flag]
(Changed in version 2.9.0) The p0
call-by-name arguments is evaluated at most once per constructed Parser object, instead of on every need that arises during parsing.
Parser of non-POSIX command lines