protected String toSyntaxOptions()

in src/main/java/org/apache/commons/cli/help/AbstractHelpFormatter.java [421:451]

• 21 lines of code
• 4 McCabe index (conditional complexity)

    protected String toSyntaxOptions(final Iterable<Option> options, final Function<Option, OptionGroup> lookup) {
        // list of groups that have been processed.
        final Collection<OptionGroup> processedGroups = new ArrayList<>();
        final List<Option> optList = sort(options);
        final StringBuilder buff = new StringBuilder();
        String prefix = "";
        // iterate over the options
        for (final Option option : optList) {
            // get the next Option
            // check if the option is part of an OptionGroup
            final OptionGroup group = lookup.apply(option);
            // if the option is part of a group
            if (group != null) {
                // and if the group has not already been processed
                if (!processedGroups.contains(group)) {
                    // add the group to the processed list
                    processedGroups.add(group);
                    // add the usage clause
                    buff.append(prefix).append(toSyntaxOptions(group));
                    prefix = " ";
                }
                // otherwise the option was displayed in the group previously so ignore it.
            }
            // if the Option is not part of an OptionGroup
            else {
                buff.append(prefix).append(optionFormatBuilder.build(option).toSyntaxOption());
                prefix = " ";
            }
        }
        return buff.toString();
    }