/guava/guava/src/com/google/common/io/BaseEncoding.java
Alphabet upper = alphabet.upperCase( ) ;Alphabet ignore = alphabet.ignoreCase( ) ;
Alphabet ignore = alphabet.ignoreCase ( ) ;
return result; } @Override public BaseEncoding ignoreCase() { BaseEncoding result = ignoreCase; if (result == null) { <extra_id_0> result = ignoreCase = (ignore == alphabet) ? this : newInstance(ignore, paddingChar); } return result; } BaseEncoding newInstance(Alphabet alphabet, @CheckForNull Character paddingChar) { return new StandardBaseEncoding(alphabet, paddingChar);