Mark H Weaver <m...@netris.org> skribis: > I wrote: >> Having slept on this, I think I agree that 'open-input-file' should >> auto-consume BOMs.
Good. > So what should (open-file FILENAME "r+") do? What about doing the same as for just “r”? I can’t think of any reasonable scenario where this could be a problem in practice. > Also, Unicode 6.2 section 2.6 table 2-4 says that BOMs are only allowed > for the encoding schemes UTF-8, UTF-16, and UTF-32. They are *not* > allowed for UTF-16BE, UTF-16LE, UTF-32BE, or UTF-32LE. What about this: in ‘open-file’, if %default-port-encoding is one of the BE/LE variants, then skip the BOM logic; otherwise, check the presence of a BOM and consume it? Thanks for investigating! Ludo’.
