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https://issues.apache.org/jira/browse/CLI-150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oliver Heger resolved CLI-150.
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Resolution: Fixed
Fix applied in revision 681191.
WriteableCommandLineImpl.looksLikeOption() now tries harder to find out whether
an element of the command line is an option. Instead of simply checking for a
possible option prefix, it now also verifies whether an option with such a name
exists in the current group.
> Negative numbers mistaken for options
> -------------------------------------
>
> Key: CLI-150
> URL: https://issues.apache.org/jira/browse/CLI-150
> Project: Commons CLI
> Issue Type: Bug
> Components: Parser
> Environment: Sun JDK 1.6, Ubuntu 7.04
> Reporter: Dioktos
> Fix For: 2.0
>
> Attachments: BugCLI150Test.java, patchCL150.patch
>
>
> If an option has a negative numerical argument, the parser mistakes it for
> another option and throws an error. For example, consider:
> {{Argument numArg =
> aBuilder.withValidator(NumberValidator.getNumberInstance()).withMinimum(1).withMaximum(1).create();}}
> {{Option numOpt =
> oBuilder.withLongName("num").withArgument(numArg).create();}}
> {{Group options = gBuilder.withOption(numOpt).create();}}
> Then parsing {{--num -0.1}} results in:
> {{Unexpected -0.1 while processing --num}}
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