Method digit

corpus/java/training/guava/base/CharMatcher.java:121–123

Determines whether a character is a digit according to Unicode . If you only care to match ASCII digits, you can use inRange('0', '9'). @since 19.0 (since 1.0 as constant DIGIT)

()

   * @since 19.0 (since 1.0 as constant {@code DIGIT})
   */
  public static CharMatcher digit() {
    return Digit.INSTANCE;
  }

  /**
   * Determines whether a character is a digit according to {@linkplain Character#isDigit(char)