How to use

trimQuotes

method

in

picocli.CommandLine$Model$ParserSpec

private String unquote(String value) {
  if (!commandSpec.parser().trimQuotes()) { return value; }
  return value == null
      ? null
      : (value.length() > 1 && value.startsWith("\"") && value.endsWith("\""))
        ? value.substring(1, value.length() - 1)
        : value;
}

private static String restoreQuotedValues(String part, Queue<String> quotedValues, ParserSpec parser) {
  StringBuilder result = new StringBuilder();
  boolean escaping = false, inQuote = false, skip = false;
  for (int ch = 0, i = 0; i < part.length(); i += Character.charCount(ch)) {
    ch = part.codePointAt(i);
    switch (ch) {
      case '\\': escaping = !escaping; break;
      case '\"':
        if (!escaping) {
          inQuote = !inQuote;
          if (!inQuote) { result.append(quotedValues.remove()); }
          skip = parser.trimQuotes();
        }
        break;
      default: escaping = false; break;
    }
    if (!skip) { result.appendCodePoint(ch); }
    skip = false;
  }
  return result.toString();
}

@SuppressWarnings("unchecked")
@Test
public void testInterpreterApplyValueToSingleValuedField() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Class lookBehindClass = Class.forName("picocli.CommandLine$LookBehind");
  Method applyValueToSingleValuedField = c.getDeclaredMethod("applyValueToSingleValuedField",
      ArgSpec.class,
      lookBehindClass,
      Range.class,
      Stack.class, Set.class, String.class);
  applyValueToSingleValuedField.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  Method clear = c.getDeclaredMethod("clear");
  clear.setAccessible(true);
  clear.invoke(interpreter); // initializes the interpreter instance
  PositionalParamSpec arg = PositionalParamSpec.builder().arity("1").build();
  Object SEPARATE = lookBehindClass.getDeclaredField("SEPARATE").get(null);
  int value = (Integer) applyValueToSingleValuedField.invoke(interpreter,
      arg, SEPARATE, Range.valueOf("1"), new Stack<String>(), new HashSet<String>(), "");
  assertEquals(0, value);
}

@SuppressWarnings("unchecked")
@Test
public void testInterpreterApplyValueToSingleValuedField() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Class lookBehindClass = Class.forName("picocli.CommandLine$LookBehind");
  Method applyValueToSingleValuedField = c.getDeclaredMethod("applyValueToSingleValuedField",
      ArgSpec.class,
      lookBehindClass,
      Range.class,
      Stack.class, Set.class, String.class);
  applyValueToSingleValuedField.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  Method clear = c.getDeclaredMethod("clear");
  clear.setAccessible(true);
  clear.invoke(interpreter); // initializes the interpreter instance
  PositionalParamSpec arg = PositionalParamSpec.builder().arity("1").build();
  Object SEPARATE = lookBehindClass.getDeclaredField("SEPARATE").get(null);
  int value = (Integer) applyValueToSingleValuedField.invoke(interpreter,
      arg, SEPARATE, Range.valueOf("1"), new Stack<String>(), new HashSet<String>(), "");
  assertEquals(0, value);
}

private String restoreQuotedValues(String part, Queue<String> quotedValues, ParserSpec parser) {
  StringBuilder result = new StringBuilder();
  boolean escaping = false, inQuote = false, skip = false;
  for (int ch = 0, i = 0; i < part.length(); i += Character.charCount(ch)) {
    ch = part.codePointAt(i);
    switch (ch) {
      case '\\': escaping = !escaping; break;
      case '\"':
        if (!escaping) {
          inQuote = !inQuote;
          if (!inQuote) { result.append(quotedValues.remove()); }
          skip = parser.trimQuotes();
        }
        break;
      default: escaping = false; break;
    }
    if (!skip) { result.appendCodePoint(ch); }
    skip = false;
  }
  return result.toString();
}

/** Sets whether the parser should trim quotes from command line arguments before processing them. The default is
 * read from the system property "picocli.trimQuotes" and will be {@code true} if the property is set and empty, or
 * if its value is "true".
 * <p>The specified setting will be registered with this {@code CommandLine} and the full hierarchy of its
 * subcommands and nested sub-subcommands <em>at the moment this method is called</em>. Subcommands added
 * later will have the default setting. To ensure a setting is applied to all
 * subcommands, call the setter last, after adding subcommands.</p>
 * <p>Calling this method will cause the "picocli.trimQuotes" property to have no effect.</p>
 * @param newValue the new setting
 * @return this {@code CommandLine} object, to allow method chaining
 * @since 3.7
 */
public CommandLine setTrimQuotes(boolean newValue) {
  getCommandSpec().parser().trimQuotes(newValue);
  for (CommandLine command : getCommandSpec().subcommands().values()) {
    command.setTrimQuotes(newValue);
  }
  return this;
}

@SuppressWarnings("unchecked")
@Ignore
@Test
public void testInterpreterProcessClusteredShortOptions() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Method processClusteredShortOptions = c.getDeclaredMethod("processClusteredShortOptions",
      Collection.class, Set.class, String.class, Stack.class);
  processClusteredShortOptions.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.addOption(OptionSpec.builder("-x").arity("0").build());
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  Stack<String> stack = new Stack<String>();
  String arg = "-xa";
  processClusteredShortOptions.invoke(interpreter, new ArrayList<ArgSpec>(), new HashSet<String>(), arg, stack);
  // TODO
}

@SuppressWarnings("unchecked")
@Test
public void testInterpreterUnquote() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Method unquote = c.getDeclaredMethod("unquote", String.class);
  unquote.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  assertNull(unquote.invoke(interpreter, new Object[]{null}));
  assertEquals("abc", unquote.invoke(interpreter, "\"abc\""));
  assertEquals("", unquote.invoke(interpreter, "\"\""));
  assertEquals("only balanced quotes 1", "\"abc", unquote.invoke(interpreter, "\"abc"));
  assertEquals("only balanced quotes 2", "abc\"", unquote.invoke(interpreter, "abc\""));
  assertEquals("only balanced quotes 3", "\"", unquote.invoke(interpreter, "\""));
  assertEquals("no quotes", "X", unquote.invoke(interpreter, "X"));
}

@Test
public void testArgSpecSplitValue_MultipleQuotedValues_QuotesTrimmedIfRequested() {
  ParserSpec parser = new ParserSpec().trimQuotes(true);
  ArgSpec spec = PositionalParamSpec.builder().splitRegex(",").build();
  String[] actual = spec.splitValue("a,b,\"c,d,e\",f,\"xxx,yyy\"", parser, Range.valueOf("0"), 0);
  assertArrayEquals(new String[]{"a", "b", "c,d,e", "f", "xxx,yyy"}, actual);
}

private String unquote(String value) {
  if (!commandSpec.parser().trimQuotes()) { return value; }
  return value == null
      ? null
      : (value.length() > 1 && value.startsWith("\"") && value.endsWith("\""))
        ? value.substring(1, value.length() - 1)
        : value;
}

/** Returns whether the parser should trim quotes from command line arguments before processing them. The default is
 * read from the system property "picocli.trimQuotes" and will be {@code true} if the property is present and empty,
 * or if its value is "true".
 * @return {@code true} if the parser should trim quotes from command line arguments before processing them, {@code false} otherwise;
 * @since 3.7 */
public boolean isTrimQuotes() { return getCommandSpec().parser().trimQuotes(); }

/** Sets whether the parser should trim quotes from command line arguments before processing them. The default is
 * read from the system property "picocli.trimQuotes" and will be {@code true} if the property is set and empty, or
 * if its value is "true".
 * <p>The specified setting will be registered with this {@code CommandLine} and the full hierarchy of its
 * subcommands and nested sub-subcommands <em>at the moment this method is called</em>. Subcommands added
 * later will have the default setting. To ensure a setting is applied to all
 * subcommands, call the setter last, after adding subcommands.</p>
 * <p>Calling this method will cause the "picocli.trimQuotes" property to have no effect.</p>
 * @param newValue the new setting
 * @return this {@code CommandLine} object, to allow method chaining
 * @since 3.7
 */
public CommandLine setTrimQuotes(boolean newValue) {
  getCommandSpec().parser().trimQuotes(newValue);
  for (CommandLine command : getCommandSpec().subcommands().values()) {
    command.setTrimQuotes(newValue);
  }
  return this;
}

@SuppressWarnings("unchecked")
@Ignore
@Test
public void testInterpreterProcessClusteredShortOptions() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Method processClusteredShortOptions = c.getDeclaredMethod("processClusteredShortOptions",
      Collection.class, Set.class, String.class, Stack.class);
  processClusteredShortOptions.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.addOption(OptionSpec.builder("-x").arity("0").build());
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  Stack<String> stack = new Stack<String>();
  String arg = "-xa";
  processClusteredShortOptions.invoke(interpreter, new ArrayList<ArgSpec>(), new HashSet<String>(), arg, stack);
  // TODO
}

@SuppressWarnings("unchecked")
@Test
public void testInterpreterUnquote() throws Exception {
  Class c = Class.forName("picocli.CommandLine$Interpreter");
  Method unquote = c.getDeclaredMethod("unquote", String.class);
  unquote.setAccessible(true);
  CommandSpec spec = CommandSpec.create();
  spec.parser().trimQuotes(true);
  CommandLine cmd = new CommandLine(spec);
  Object interpreter = PicocliTestUtil.interpreter(cmd);
  assertNull(unquote.invoke(interpreter, new Object[]{null}));
  assertEquals("abc", unquote.invoke(interpreter, "\"abc\""));
  assertEquals("", unquote.invoke(interpreter, "\"\""));
  assertEquals("only balanced quotes 1", "\"abc", unquote.invoke(interpreter, "\"abc"));
  assertEquals("only balanced quotes 2", "abc\"", unquote.invoke(interpreter, "abc\""));
  assertEquals("only balanced quotes 3", "\"", unquote.invoke(interpreter, "\""));
  assertEquals("no quotes", "X", unquote.invoke(interpreter, "X"));
}

@Test
public void testArgSpecSplitValue_MultipleQuotedValues_QuotesTrimmedIfRequested() {
  ParserSpec parser = new ParserSpec().trimQuotes(true);
  ArgSpec spec = PositionalParamSpec.builder().splitRegex(",").build();
  String[] actual = spec.splitValue("a,b,\"c,d,e\",f,\"xxx,yyy\"", parser, Range.valueOf("0"), 0);
  assertArrayEquals(new String[]{"a", "b", "c,d,e", "f", "xxx,yyy"}, actual);
}

/** Returns whether the parser should trim quotes from command line arguments before processing them. The default is
 * read from the system property "picocli.trimQuotes" and will be {@code true} if the property is present and empty,
 * or if its value is "true".
 * @return {@code true} if the parser should trim quotes from command line arguments before processing them, {@code false} otherwise;
 * @since 3.7 */
public boolean isTrimQuotes() { return getCommandSpec().parser().trimQuotes(); }