Am Samstag, 5. Oktober 2019, 18:16:53 CEST schrieb Eli Zaretskii: > > Date: Sat, 05 Oct 2019 19:08:21 +0300 > > From: Eli Zaretskii > > Cc: 37633@debbugs.gnu.org, anton@mips.complang.tuwien.ac.at > > > > > Suggested solution: Use byte-to-position to calculate the position in > > > compilation-move-to-column. > > > > This only works in UTF-8 locales, and is not 100% even there, so it > > isn't the right solution. > > In general, byte-to-position is meant to be used only for converting > between byte and character positions of text in Emacs buffers. > > For byte offsets in external text we have bufferpos-to-filepos, but > that requires us to know the encoding of the external text. We need > to find a reasonable way of getting that. Suggestions and patches > welcome. We can likely assume that the auto-detected encoding is the correct one, i.e. buffer-file-coding-system can be used (the default for the optional encoding system parameter for bufferpos-to-filepos and filepos-to-bufferpos). I.e. go to the line selected, do a bufferpos-to-filepos on that position, add the column-1 to that, and do a filepos-to-bufferpos. Jump there. Problem with precision: "exact" requires encoding the entire file, so it's slow for large files. Particularly with automatically generated files, this is likely not acceptable, so "approximate" could be good enough. -- Bernd Paysan "If you want it done right, you have to do it yourself" net2o id: kQusJzA;7*?t=uy@X}1GWr!+0qqp_Cn176t4(dQ* https://net2o.de/