- (extend-opt-grammar HELP? OPTION ...)syntax
- (extend-opt-grammar SOURCE OPTION ...)syntax
- HELP?
- boolean ; include help flag
- SOURCE
- (or (list-of OPTION) OPTION) ; appends SOURCE OPTION ...
- OPTION
- see {[getopt-long]} Command-line option grammar
Extends the option grammer w/ ((long s) ...) => ((long s) ... (single-char #\s)).