Method replaceFrom

guava/src/com/google/common/base/CharMatcher.java:680–694

Returns a string copy of the input character sequence, with each matching BMP character replaced by a given replacement character. For example: {@snippet : CharMatcher.is('a').replaceFrom("radar", 'o') } ... returns {@code "rodor"}. <p>The default implementation uses {@link #indexIn(CharSequence)

(CharSequence sequence, char replacement)

   * @return the new string
   */
  public String replaceFrom(CharSequence sequence, char replacement) {
    String string = sequence.toString();
    int pos = indexIn(string);
    if (pos == -1) {
      return string;
    }
    char[] chars = string.toCharArray();
    chars[pos] = replacement;
    for (int i = pos + 1; i < chars.length; i++) {
      if (matches(chars[i])) {
        chars[i] = replacement;
      }
    }
    return new String(chars);
  }

  /**
   * Returns a string copy of the input character sequence, with each matching BMP character