/guava/guava/src/com/google/common/base/CharMatcher.java
if ( index < 0) {
if ( index >= 0 ) {
} } } @Override public boolean matches(char c) { int index = Arrays.binarySearch(rangeStarts, c); <extra_id_0> return true; } else { index = ~index - 1; return index >= 0 && c <= rangeEnds[index]; } }