[jira] Resolved: (CLI-124) HelpFormatter should be more cunning when deciding if a Group is Optional and therefore square-bracketing it

["Oliver Heger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLI-124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oliver Heger resolved CLI-124.
------------------------------

    Resolution: Fixed

A fix was applied in revision 681185.

So far HelpFormatter never displayed optional child groups in square brackets. I did not want to change this globally because existing code may rely on this behavior. So I added a new constant "DISPLAY_OPTIONAL_CHILD_GROUP" to DisplaySettings, which can be explicitly set in the properties of the HelpFormatter instance (the set returned by getFullUsageSettings()).

If this flag is added, optional child groups will be displayed in square brackets.

> HelpFormatter should be more cunning when deciding if a Group is Optional and therefore square-bracketing it
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: CLI-124
>                 URL: https://issues.apache.org/jira/browse/CLI-124
>             Project: Commons CLI
>          Issue Type: Improvement
>          Components: Help formatter
>            Reporter: Andrew Shirley
>            Assignee: Oliver Heger
>             Fix For: 2.0
>
>
> Currently all child groups are required to satisfy their constraints (defaul is any thing goes) and so if you have a Group A as a child of Group B and set a minimum of 1 on A then B is no longer Optional as A is not Optional.

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