Examples of net.sourceforge.argparse4j.inf.Subparsers.addParser()

Class net.sourceforge.argparse4j.inf.Subparsers

Examples of net.sourceforge.argparse4j.inf.Subparsers.addParser()

net.sourceforge.argparse4j.inf.Subparsers.addParser()

Adds and returns {@link Subparser} object with given sub-command name.The given command must be unique for each Subparsers instance.

The prefixChars is inherited from main ArgumentParser.
@param command Sub-command name @return {@link Subparser} object.

        ap.addArgument("-f");
        ap.addArgument("--baz").nargs(2);
        ap.addArgument("x");
        ap.addArgument("y").nargs(2);
        Subparsers subparsers = ap.addSubparsers();
        Subparser subparser = subparsers.addParser("add");
        subparser.addArgument("--foo");
        subparser.addArgument("--bar").action(Arguments.storeTrue());


        Namespace res = ap.parseArgs("-f foo @target/test-classes/args.txt --baz alpha @target/test-classes/args2.txt x y1 @target/test-classes/args3.txt add --bar @target/test-classes/args4.txt".split(" "));
        assertEquals("bar", res.getString("f"));

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    @Test
    public void testParseArgsWithSubparsers() throws ArgumentParserException {
        ap.addArgument("-f");
        Subparsers subparsers = ap.addSubparsers();
        Subparser parserA = subparsers.addParser("install");
        parserA.addArgument("pkg1");
        parserA.setDefault("func", "install");
        Subparser parserB = subparsers.addParser("search");
        parserB.addArgument("pkg2");
        parserB.setDefault("func", "search");

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        ap.addArgument("-f");
        Subparsers subparsers = ap.addSubparsers();
        Subparser parserA = subparsers.addParser("install");
        parserA.addArgument("pkg1");
        parserA.setDefault("func", "install");
        Subparser parserB = subparsers.addParser("search");
        parserB.addArgument("pkg2");
        parserB.setDefault("func", "search");
        Namespace res = ap.parseArgs("install aria2".split(" "));
        assertEquals("aria2", res.get("pkg1"));
        assertEquals("install", res.get("func"));

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    }


    @Test
    public void testParseArgsWithSubparsersAlias() throws ArgumentParserException {
        Subparsers subparsers = ap.addSubparsers();
        Subparser checkout = subparsers.addParser("checkout").aliases("co");
        checkout.setDefault("func", "checkout");
        Namespace res = ap.parseArgs("co".split(" "));
        assertEquals("checkout", res.get("func"));
    }

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    @Test
    public void testParseArgsWithSubparsersAmbiguousCommand() throws ArgumentParserException {
        Namespace res;
        Subparsers subparsers = ap.addSubparsers();
        Subparser checkout = subparsers.addParser("clone")
                .setDefault("func", "clone");
        Subparser clean = subparsers.addParser("clean")
                .setDefault("func", "clean");


        res = ap.parseArgs("clo".split(" "));

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    public void testParseArgsWithSubparsersAmbiguousCommand() throws ArgumentParserException {
        Namespace res;
        Subparsers subparsers = ap.addSubparsers();
        Subparser checkout = subparsers.addParser("clone")
                .setDefault("func", "clone");
        Subparser clean = subparsers.addParser("clean")
                .setDefault("func", "clean");


        res = ap.parseArgs("clo".split(" "));
        assertEquals("clone", res.get("func"));

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    }


    @Test
    public void testParseArgsWithCommandAfterSeparator() throws ArgumentParserException {
        Subparsers subparsers = ap.addSubparsers();
        subparsers.addParser("install");
        try {
            ap.parseArgs("-- install".split(" "));
            fail();
        } catch(ArgumentParserException e) {
            assertEquals("unrecognized arguments: 'install'", e.getMessage());

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    }


    @Test
    public void testParseArgsWithoutSubcommand() throws ArgumentParserException {
        Subparsers subparsers = ap.addSubparsers();
        subparsers.addParser("install");
        try {
            ap.parseArgs(new String[]{});
            fail();
        } catch(ArgumentParserException e) {
            assertEquals("too few arguments", e.getMessage());

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    }
    
    @Test
    public void testSubparsersDest() throws ArgumentParserException {
        Subparsers subparsers = ap.addSubparsers().dest("command");
        subparsers.addParser("install").addArgument("--command")
                .setDefault("default");
        Namespace res = ap.parseArgs("install".split(" "));
        assertEquals("install", res.get("command"));
    }

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    }


    @Test
    public void testSubparserWithoutAddHelp() throws ArgumentParserException {
        Subparsers subparsers = ap.addSubparsers();
        subparsers.addParser("install", false, ArgumentParsers.DEFAULT_PREFIX_CHARS);
        try {
            ap.parseArgs("install -h".split(" "));
            fail();
        } catch (ArgumentParserException e) {
            assertEquals("unrecognized arguments: '-h'", e.getMessage());

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