Updated function works in Linux terminal in AWS SageMaker. In R session, print command returns 19775. But if I start a new R session, same print command returns 24904. And so on
Sent from my iPhone > On Sep 10, 2025, at 11:01 AM, Tyler Smith <[email protected]> wrote: > > On Wed, Sep 10, 2025, at 6:42 AM, Naresh Gurbuxani wrote: >> It does not work in Linux terminal emacs run inside AWS SageMaker. >> Here it needs to open >> /home/ec2-user/anaconda3/envs/R/lib/R/doc/html/index.html > > This is interesting. If it needs to open a local file, that suggests the http > server is not started. Can you tell me what the output of > `print(tools::startDynamicHelp(NA))` (run from within R) is in that > situation? The new version of my function (below) may fix this. > >> On Mac emacs GUI, this function does not work with default settings. >> This is the message displayed in in *eww* buffer: >> Loading http://127.0.0.1:ting httpd help server ... done >> [1] 23824/doc/html/index.html… > > This is helpful! My original code didn't account for the extra text emitted > when the http server is started the first time. The following should fix that: > > ``` > (defun ess-eww () > (interactive) > (let ((BUF (generate-new-buffer "URL")) > (PORT)) > (ess-command "print(tools::startDynamicHelp(NA))" BUF) > (with-current-buffer BUF > (setq PORT (buffer-substring (search-forward-regexp "\\[1\\] ") > (point-max))) > (message (buffer-substring (point-min) (point-max)))) > (kill-buffer BUF) > (eww (concat "http://127.0.0.1:"; PORT "/doc/html/index.html")))) > ``` > > This may also fix the problem in the Linux terminal. It works here using > terminal Emacs (on Debian). > > Question for the ESS devs - is there a simpler way to get text from the R > process into Elisp? I've used `ess-command`, and then collected the relevant > info out of the buffer the result is printed to. This requires a bit of > fussing to get to the value I want (via `search-forward-regexp`). That might > be brittle. If I could directly transfer the first value of an R vector into > an Elisp variable that would be better. > > - tyler > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/ess-help
