in modules/core/src/main/java/org/apache/fluo/core/util/Hex.java [101:106]
public static String encNonAscii(Span span) {
return ((span.isStartInclusive() && !span.getStart().equals(RowColumn.EMPTY)) ? "[" : "(")
+ (span.getStart().equals(RowColumn.EMPTY) ? "-inf" : encNonAscii(span.getStart())) + ","
+ (span.getEnd().equals(RowColumn.EMPTY) ? "+inf" : encNonAscii(span.getEnd()))
+ ((span.isEndInclusive() && !span.getEnd().equals(RowColumn.EMPTY)) ? "]" : ")");
}