* or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.base;

import static com.google.common.base.Strings.lenientFormat;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import org.jspecify.annotations.Nullable;

/**

  private static String badElementIndex(int index, int size, String desc) {
    if (index < 0) {
      return lenientFormat("%s (%s) must not be negative", desc, index);
    } else if (size < 0) {
      throw new IllegalArgumentException("negative size: " + size);
    } else { // index >= size
      return lenientFormat("%s (%s) must be less than size (%s)", desc, index, size);
    }
  }

  /**

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.base;

import static com.google.common.base.Strings.lenientFormat;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import org.jspecify.annotations.Nullable;

/**

  private static String badElementIndex(int index, int size, String desc) {
    if (index < 0) {
      return lenientFormat("%s (%s) must not be negative", desc, index);
    } else if (size < 0) {
      throw new IllegalArgumentException("negative size: " + size);
    } else { // index >= size
      return lenientFormat("%s (%s) must be less than size (%s)", desc, index, size);
    }
  }

  /**

  }

  static boolean patternCompilerIsPcreLike() {
    throw new UnsupportedOperationException();
  }

  static String lenientFormat(@Nullable String template, @Nullable Object @Nullable ... args) {
    return Strings.lenientFormat(template, args);
  }

  static String stringValueOf(@Nullable Object o) {
    return String.valueOf(o);
  }

  private Platform() {}

   *     non-null values are converted to strings using {@link Object#toString()}.
   * @since 25.1
   */
  // TODO(diamondm) consider using Arrays.toString() for array parameters
  public static String lenientFormat(
      @Nullable String template, @Nullable Object @Nullable ... args) {
    template = String.valueOf(template); // null -> "null"

    if (args == null) {
      args = new Object[] {"(Object[])null"};
    }

   */
  static @Nullable String emptyToNull(@Nullable String string) {
    return stringIsNullOrEmpty(string) ? null : string;
  }

  static String lenientFormat(
      @Nullable String template, @Nullable Object @Nullable ... args) {
    return Strings.lenientFormat(template, args);
  }

  static String stringValueOf(@Nullable Object o) {
    return String.valueOf(o);
  }

   */
  static @Nullable String emptyToNull(@Nullable String string) {
    return stringIsNullOrEmpty(string) ? null : string;
  }

  static String lenientFormat(
      @Nullable String template, @Nullable Object @Nullable ... args) {
    return Strings.lenientFormat(template, args);
  }

  static String stringValueOf(@Nullable Object o) {
    return String.valueOf(o);
  }

   *     non-null values are converted to strings using {@link Object#toString()}.
   * @since 25.1
   */
  // TODO(diamondm) consider using Arrays.toString() for array parameters
  public static String lenientFormat(
      @Nullable String template, @Nullable Object @Nullable ... args) {
    template = String.valueOf(template); // null -> "null"

    if (args == null) {
      args = new Object[] {"(Object[])null"};
    }

    assertThat(Strings.lenientFormat("%s")).isEqualTo("%s");
    assertThat(Strings.lenientFormat("%s", 5)).isEqualTo("5");
    assertThat(Strings.lenientFormat("foo", 5)).isEqualTo("foo [5]");
    assertThat(Strings.lenientFormat("foo", 5, 6, 7)).isEqualTo("foo [5, 6, 7]");
    assertThat(Strings.lenientFormat("%s %s %s", "%s", 1, 2)).isEqualTo("%s 1 2");
    assertThat(Strings.lenientFormat("", 5, 6)).isEqualTo(" [5, 6]");