I found a simple fix:

options(crayon.enabled=TRUE)

After which, the following example works:
example(green)

Now to see if I can get the colored output from the pillar package...
https://github.com/hadley/pillar

Sort of works. Negative numbers are red, but place-holder zeros are not
being shown in gray.

Kevin Wright


On Wed, Sep 13, 2017 at 6:50 PM, Kevin Wright <kw.s...@gmail.com> wrote:

>
> Has anyone successfully used the R package "crayon" for colored text
> inside Emacs?  The package claims to work with ESS:
> https://cran.r-project.org/web/packages/crayon/index.html
>
> Digging deeper, I find this inside my iESS buffer:
>
> crayon::has_color() # returns FALSE
>
> Which seems to be caused by this code in the has_color function:
>
> isatty(stdout()) # returns FALSE. Why not TRUE?
>
> Maybe my inferior terminal settings aren't quite right... Or maybe the
> problem is with Windows...
>
> --
> Kevin Wright
>



-- 
Kevin Wright

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