Hi, I personally think it would a very "nice to have" feature, I had to face similar issues in the past and, if that feature was available would have saved me developing time.
I just have a small request/suggestion: since int/char can be casted to each other, I would use BitSets rather than Sets. Good luck! -Simo http://people.apache.org/~simonetripodi/ http://twitter.com/simonetripodi On Thu, Sep 1, 2016 at 10:53 AM, Eyal Allweil < eyal_allw...@yahoo.com.invalid> wrote: > Hi guys, > Would you be interested in adding a utility class that creates alphabet > converters, perhaps using a helper method available from StringUtils? It > doesn't have to stay the way it is now, but the API for the class - > AlphabetConverter - is currently: > /** * The input is integers representing code points, but we can make it > accept chars as well * * doNotEncode represents chars we want to leave in > the original state (not to encode them using the chars in encoding) */ > public AlphabetConverter(Set<Integer> original, Set<Integer> encoding, > Set<Integer> doNotEncode); > public String encode (String original); > > public String decode (String encoded); > In StringUtils, we could add > > public AlphabetConverter getAlphabetConverter (Set<Integer> original, > Set<Integer> encoding, Set<Integer> doNotEncode); > I used it to convert from unicode to latin letters, without using any > chars I wanted as delimiters, and preserving the English alphabet as is for > readability. If you'd like to add it, I'll clean up the code and prepare it > for a pull request so you can review it. > > It makes sense to me to add a method that returns the HashMaps used > internally for the mappings so they can be serialized (and deserialized) > for preserving the mapping. > Regards,Eyal Allweil (PayPal) > > > >