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From "Sebb (JIRA)" <>
Subject [jira] Commented: (CLI-166) Terminal width detection
Date Thu, 28 May 2009 15:48:45 GMT


Sebb commented on CLI-166:

IMO - reverse out until such time as there is a standard Java way to do this on all systems.

At which point, I'd suggest setting the default width directly, without relying on the user
to setAuthWidth().

Meanwhile, perhaps one could set the default terminal width from a system property or resource

Otherwise, it's easy enough for the user to call setWidth() themselves.

> Terminal width detection
> ------------------------
>                 Key: CLI-166
>                 URL:
>             Project: Commons CLI
>          Issue Type: New Feature
>          Components: Help formatter
>            Reporter: Emmanuel Bourg
>            Assignee: Jim Jagielski
>             Fix For: 1.3
> HelpFormatter could be improved by adjusting automatically its width to the width of
the terminal. The width of the terminal can be retrieved by the stty command on unix systems,
on Windows it requires a native call. The JLine project on SourceForge already implements
this logic.
> I suggest to add a setAutoWidth(boolean) method in HelpFormatter that will try to get
the terminal width. If it fails it'll fall back to the width provided by getWidth().

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