Function parseArgv

docopt.go:196–234

(tokens *tokenList, options *patternList, optionsFirst bool)

}

func parseArgv(tokens *tokenList, options *patternList, optionsFirst bool) (patternList, error) {
	/*
		Parse command-line argument vector.

		If options_first:
			argv ::= [ long | shorts ]* [ argument ]* [ '--' [ argument ]* ] ;
		else:
			argv ::= [ long | shorts | argument ]* [ '--' [ argument ]* ] ;
	*/
	parsed := patternList{}
	for tokens.current() != nil {
		if tokens.current().eq("--") {
			for _, v := range tokens.tokens {
				parsed = append(parsed, newArgument("", v))
			}
			return parsed, nil
		} else if tokens.current().hasPrefix("--") {
			pl, err := parseLong(tokens, options)
			if err != nil {
				return nil, err
			}
			parsed = append(parsed, pl...)
		} else if tokens.current().hasPrefix("-") && !tokens.current().eq("-") {
			ps, err := parseShorts(tokens, options)
			if err != nil {
				return nil, err
			}
			parsed = append(parsed, ps...)
		} else if optionsFirst {
			for _, v := range tokens.tokens {
				parsed = append(parsed, newArgument("", v))
			}
			return parsed, nil
		} else {
			parsed = append(parsed, newArgument("", tokens.move().String()))
		}
	}
	return parsed, nil
}

func parseOption(optionDescription string) *pattern {
	optionDescription = strings.TrimSpace(optionDescription)