[ESS] ANSI escape sequences in ESS

[Vitalie Spinu]

Don't you have TERM=dumb in process-environment list?

What's the value of Sys.getenv("TERM") for you?


 >>> Martin Maechler on Mon, 11 May 2015 23:02:05 +0200 wrote:

 > Interestingly, this *works* extremely nicely for me,  using emacs
 > 23.4.1 (still the default on ubuntu 14.03 LTS).
 > I attach an emacs window screen shot, which at least Vitalie and Tamas will get.

 > (R 3.2.0 patched, "current";  emacs 15.09-devel "current")

 > Martin

 > On Mon, May 11, 2015 at 1:23 AM, Vitalie Spinu <spinuvit using gmail.com> wrote:
 >> 
 >> We are not even getting those delimiters because TERM var is "dumb" by
 >> default. You can either:
 >> 
 >> Sys.setenv(TERM = "xterm-256color")
 >> 
 >> directly in R, or prepend that to process-environment in emacs.
 >> 
 >> Vitalie
 >> 
 >> 
 >> >>> Tamas Papp on Sun, 10 May 2015 17:28:49 +0200 wrote:
 >> 
 >> > On Fri, May 08 2015, Vitalie Spinu <spinuvit using gmail.com> wrote:
 >> 
 >> >> >>> Tamas Papp on Fri, 08 May 2015 13:23:54 +0200 wrote:
 >> >>
 >> >> > Hi,
 >> >> > I saw some R packages that implement ANSI escapes in R and Julia, eg
 >> >> > https://github.com/gaborcsardi/crayon . But when I tried this in ESS/R,
 >> >> > the output was unchanged, in Julia I saw the escapes.
 >> >>
 >> >> There is ansi-color-process-output in comint-output-filter-functions so
 >> >> it should work in principle. But, as R is not producing any of shush, it
 >> >> was never tested.
 >> >>
 >> >> If you give a small reproducible example that works in terminal but not
 >> >> in ESS, I might have a look at it.
 >> 
 >> > Hi Vitalie,
 >> 
 >> > This works in the terminal, but not in Emacs/ESS (versions below):
 >> 
 >> > install.packages("crayon")
 >> > library(crayon)
 >> > cat(green("test\n"))
 >> 
 >> > Should print "test" in green.
 >> 
 >> > Thanks for looking into this.
 >> 
 >> > Best,
 >> 
 >> > Tamas
 >> 
 >> > PS.: Versions:
 >> 
 >> > GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.5) of
 >> > 2015-03-07 on trouble, modified by Debian
 >> 
 >> > ess-version: 15.09-devel [elpa: 20150423.923] (loaded from /home/tamas/.emacs.d/elpa/ess-20150423.923/)
 >> 
 >> > R version:
 >> >                _
 >> > platform       x86_64-pc-linux-gnu
 >> > arch           x86_64
 >> > os             linux-gnu
 >> > system         x86_64, linux-gnu
 >> > status
 >> > major          3
 >> > minor          2.0
 >> > year           2015
 >> > month          04
 >> > day            16
 >> > svn rev        68180
 >> > language       R
 >> > version.string R version 3.2.0 (2015-04-16)
 >> > nickname       Full of Ingredients
 >> 
 >> > Crayon: 2015-04-09 00:30:34
 >> 
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