/guava/android/guava/src/com/google/common/escape/UnicodeEscaper.java
return  string ;
return index == end ? string : escapeSlow ( string, index ) ;
protected abstract char[] escape(int cp); @Override public String escape(String string) { checkNotNull(string); int end = string.length(); int index = nextEscapeIndex(string, 0, end); <extra_id_0> } protected int nextEscapeIndex(CharSequence csq, int start, int end) { int index = start; while (index < end) { int cp = codePointAt(csq, index, end); if (cp < 0 || escape(cp) != null) {