public static Options parsePattern()

in src/main/java/org/apache/commons/cli/PatternOptionBuilder.java [153:191]

27 lines of code
6 McCabe index (conditional complexity)


    public static Options parsePattern(final String pattern) {
        char opt = ' ';
        boolean required = false;
        Class<?> type = null;

        final Options options = new Options();

        for (int i = 0; i < pattern.length(); i++) {
            final char ch = pattern.charAt(i);

            // a value code comes after an option and specifies
            // details about it
            if (!isValueCode(ch)) {
                if (opt != ' ') {
                    final Option option = Option.builder(String.valueOf(opt)).hasArg(type != null).required(required).type(type).build();

                    // we have a previous one to deal with
                    options.addOption(option);
                    required = false;
                    type = null;
                }

                opt = ch;
            } else if (ch == '!') {
                required = true;
            } else {
                type = (Class<?>) getValueClass(ch);
            }
        }

        if (opt != ' ') {
            final Option option = Option.builder(String.valueOf(opt)).hasArg(type != null).required(required).type(type).build();

            // we have a final one to deal with
            options.addOption(option);
        }

        return options;
    }