print-help ( options -- ) - Factor Documentation

print-help ( options -- )

Vocabulary
command-line .parser .private

Inputs

options an object

Outputs
None

Definition

USING: command-line.parser io kernel namespaces sequences ;

IN: command-line.parser.private

: print-help ( options -- )
"Usage:\n " write dup print-short-usage
program-prolog get [ nl print ] unless-empty
[ positional? ] partition
[ [ nl "Arguments:" print print-options ] unless-empty ]
[ [ nl "Options:" print print-options ] unless-empty ] bi*
program-epilog get [ nl print ] unless-empty ;