hi,
this could be me misunderstanding the posix standard but this link
http://java.sun.com/docs/books/tutorial/essential/attributes/_posix.html
says
"Options that do not require arguments can be grouped after a
hyphen, so, for example, -lst is equivalent to -t -l -s."
but the following code:
import org.apache.commons.cli.*;
import java.util.*;
public class CLITest {
public static void main(String[]arg) throws Exception {
CommandLineParser parser = new PosixParser();
Options options = new Options();
Option p = new Option("p", "pets", true, "takes
a list of up to 4 animals");
p.setArgs(4);
p.setRequired(true);
Option v = new Option("v", "vet", true, "the
name of a vet");
v.setArgs(100);
v.setRequired(true);
options.addOption(p).addOption(v);
CommandLine line = parser.parse(options, arg);
System.out.println("p ? "+line.hasOption("p")+"
"+Arrays.asList(line.getOptionValues("p")));
System.out.println("v ? "+line.hasOption("v")+"
"+Arrays.asList(line.getOptionValues("v")));
}
}
produces these results
y:\java\misc>java CLITest -p 1 2 3 -v 4 5 6
p ? true [1, 2, 3]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 2 v 3 -v 4 5 6
p ? true [1, 2]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 v 2 3 -v 4 5 6
p ? true [1]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 V 2 3 -v 4 5 6
p ? true [1, V, 2, 3]
v ? true [4, 5, 6]
when I was expecting: (* marks different from above)
y:\java\misc>java CLITest -p 1 2 3 -v 4 5 6
p ? true [1, 2, 3]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 2 v 3 -v 4 5 6
* p ? true [1, 2, v, 3]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 v 2 3 -v 4 5 6
* p ? true [1, v, 2, 3]
v ? true [4, 5, 6]
y:\java\misc>java CLITest -p 1 V 2 3 -v 4 5 6
p ? true [1, V, 2, 3]
v ? true [4, 5, 6]
I'm constantly misunderstanding how command lines are meant to be
interpreted, but this seems wrong??
thanks,
Andrew
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