[Pharo-dev] Streaming over a UTF-8 encoded file using upToAll:

Hi all, I want to stream over a file which is encoded in UTF-8 and have a problem with upToAll: answering more than it should. Here is a minimal test: 'ße' readStream upToAll: 'e'. This answers 'ß' as expected. I wrote those two characters to a file: FileStream forceNewFileNamed: 'test' do: [ :stream | stream nextPutAll: 'ße' ]. I opened it using a text editor to verify the encoding. It is UTF-8 as expected. Now if I do the following... 'test' asFileReference readStreamDo: [ :stream | stream upToAll: 'e' ]. ... I get 'ße' instead of just 'ß'. I tried explicitly setting a UTF8TextConverter: 'test' asFileReference readStreamDo: [ :stream | stream converter: UTF8TextConverter new; upToAll: 'e' ]. However, the result is still 'ße'. If I read the entire file first using #contentsOfEntireFile first it works: ('test' asFileReference readStreamDo: [ :stream | stream contentsOfEntireFile ]) readStream upToAll: 'e' However, that defies the purpose of streaming. Can someone tell me what I am doing wrong? I am on Pharo 6.1 on a Mac. Bernhard