Possible extensions to OUString class

[Matteo Casalin]

Dear all,
     I'm working on improving code that calls getToken (e.g. using its 
version with index, or using other OUString functions in its place when 
possible).
One thing that I noticed is that there are a lot of calls in the form 
getToken().toInt# which require memory management just to obtain a value 
that could be generated by the original OUString. Similarly (but less 
frequently), some tokens are extracted just to compare them against a 
string, which again requires memory management that is really not needed.

I was wondering if extending O(U)String with functions like:

* getTokenAs[U]Int#(token, sep, index)
* matchToken(token, sep, index, string)

would be accepted/appreciated or not. At the moment I already submitted 
to gerrit a patch [1] which adds comphelper::string::matchToken but I 
think that adding such functionality to OUString directly would be 
nicer. Also, introducing getTokenAsInt in OUString would likely allow to 
reuse its toInt code.

looking forward to your feedback.
Matteo

[1] https://gerrit.libreoffice.org/#/c/66935/