[Rd] R --interactive -e 'browser()'

[Abby Spurdle]

Here's what I would expect:

In interactive mode, input is taken from the user (i.e. command line).
In non-interactive mode, input is taken from a text file (or equivalent).

What you're trying to do is run R in *non*-interactive mode, and call
the browser function.
This requires input to come from the user (i.e. command line) and from
a text file (or equivalent), at essentially the same time.

While doing fantasmoswankyblastik things with I/O is a lot of fun.
I don't think it's R's job to do that.


On Fri, Feb 21, 2020 at 6:25 PM <frederik using ofb.net> wrote:
>
> I would like to have a mode where I can run some R code in an executable script, like with Rscript, but interactively, so that e.g. 'browser()' works.
>
>  From the manual page it looks like this should work:
>
>      R --interactive -e 'source("script.R")'
>
> or we could shorten it to:
>
>      R --interactive -e 'browser()'
>
> However, it seems that --interactive causes -e to be ignored.
>
> And if I leave out --interactive, then R quits before the browser() function exits.
>
>  From an engineering standpoint it doesn't seem like it should be very difficult to tell the interactive REPL to pretend that a certain command was entered before everything else. Also, it would be useful to me to be able to debug R scripts using standard features like 'browser()'. Should I submit a feature request on Bugzilla, or maybe someone can advise me how to proceed?
>
> Thanks,
>
> Frederick
>
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