/**
* Creates formatter using a message format style pattern.
*
* @param pattern the pattern.
* @throws NullPointerException if pattern is null.
* @throws IllegalArgumentException if pattern contains an ISO control character.
*/
public SummaryNameFormatter(final String pattern) {
for (int i = 0; i < pattern.length(); i++) {
if (Character.isISOControl(pattern.charAt(i))) {
throw new IllegalArgumentException("At index " + i);
}
}
this.pattern = pattern;
}
