[Pharo-dev] back and oldBack in UTF-8 files

Hi, I was looking why we cannot do condenseChanges and the reason looks to be clear: we do not have proper methods to move backwards (messages #back and # oldBack) in UTF-8 files. The current implementation changes position by one byte but in UTF-8 files it can be up to six bytes. And it's worse. We do not have mechanism how a text converter could handle this. Obvious solution is to rewrite condenseChanges to backup position somehow and do not move backwards at all but it doesn't seem to be so easy. Any ideas? And why do we need working condenseChanges? Because when we unload non-kernel packages and load them back, the resultant changes file has about 51MB :-) Cheers, -- Pavel