DO NOT REPLY [Bug 36998] New: - Parsing error?

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http://issues.apache.org/bugzilla/show_bug.cgi?id=36998

           Summary: Parsing error?
           Product: Commons
           Version: 1.0 Final
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: CLI
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: junk5@microserf.org.uk


Hi

If one accidentally confuses the long and short argument name styles, then the value of the argument is 
incorrect. This is mad clear by an example:

If I have a program that I call as follows:

my_prog --file my_file.txt

or

my_prog -f my_file.txt

but I make a typo and write

my_prog -file my_file.txt

then getOptionValue('f') will return "ile" (i.e. it thinks the remainder of the argument's name is the 
argument). "my_file.txt" will be ignored.

This is clearly an error that the user has made, but I think that CLI should be able to detect such an 
error and throw an appropriate exception.

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