I have (define-key inferior-ess-r-mode-map "_" #'ess-insert-assign) in my init file. After installing R on a new system and starting ESS (built from the Github repo at commit e21ce9b260ff2ae0f162624ae3888c60bca3ae55) I called install.packages() and after that, typing `_' only inserted that character instead of `<-'. I tracked the problem down to certain lines of the compilation output from the install.packages() invocation. In particular, this line from the compilation output of nlopt:
sed 's/\"/\\"/g' ./nlopt_optimize.m | sed 's,^% ,\",;s,^%,\",;s,$,\\n\" \\,' >> nlopt_optimize_usage.h With point at the third to last `"' in this line, (nth 3 (syntax-ppss (point))) returns nil, but with point at any later position in the buffer (nth 3 (syntax-ppss (point))) returns 34. If I insert `"' at the end of the above line, that corrects the subsequent buffer parsing, until the following line later in the output of nlopt: - have your system administrator add LIBDIR to `/etc/ld.so.conf' With point at ``' (nth 3 (syntax-ppss (point))) returns nil, but with point at any later position (until the end of the buffer) (nth 3 (syntax-ppss (point))) returns 96. If I insert ``' at the end of the above line (after `''), this again corrects the buffer parsing, now for the rest of the buffer. I can reproduce these observations in inferior-ess-r-mode in a fresh R session without actual compilation output from install.packages() simply by inserting the above lines into the buffer. However, in a buffer in ess-r-mode inserting the above sed line does not corrupt the parsing but inserting the second line does. Can anyone here replicate this? I'm not sure if this is a bug in ESS or in Emacs (perhaps in comint-mode, the grandparent of inferior-ess-r-mode, or in prog-mode, the grandparent of ess-r-mode). Any ideas? Steve Berman ______________________________________________ ESS-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/ess-help
