Re: [R-SIG-Mac] ANSI escape weirdness on M1 (libedit issue?)
Gabor, as you can see the x86_64 readline is a very old build 5.2-14 - it is the last version released under GPL-2. Later versions are to my best knowledge license-incompatible since they are released under GPL-3 only and thus do not allow the use in GPL-2 software. The arm64 version currently relies on the system library which is libedit. If it is of interest I can check if readline 5.2 can be built for arm64, but it predates the architecture by quite a few years ;). Cheers, Simon > On Nov 4, 2021, at 7:12 AM, Gábor Csárdi wrote: > > On Wed, Nov 3, 2021 at 7:00 PM Prof Brian Ripley > wrote: > [...] >> AFAIK the reason for not distributing readline with binary distributions >> of R is perceived licence restrictions. > > So is the license different for x86_64? Because those builds come with > readline: > ❯ R-4.1 -q -e 'extSoftVersion()[["readline"]]' >> extSoftVersion()[["readline"]] > [1] "5.2" > > Whereas the arm64 build has: > ❯ R-4.1-arm64 -q -e 'extSoftVersion()[["readline"]]' >> extSoftVersion()[["readline"]] > [1] "4.2 (EditLine wrapper)" > > Gabor > > ___ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > ___ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
Re: [R-SIG-Mac] ANSI escape weirdness on M1 (libedit issue?)
On Wed, Nov 3, 2021 at 7:00 PM Prof Brian Ripley wrote: [...] > AFAIK the reason for not distributing readline with binary distributions > of R is perceived licence restrictions. So is the license different for x86_64? Because those builds come with readline: ❯ R-4.1 -q -e 'extSoftVersion()[["readline"]]' > extSoftVersion()[["readline"]] [1] "5.2" Whereas the arm64 build has: ❯ R-4.1-arm64 -q -e 'extSoftVersion()[["readline"]]' > extSoftVersion()[["readline"]] [1] "4.2 (EditLine wrapper)" Gabor ___ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
Re: [R-SIG-Mac] ANSI escape weirdness on M1 (libedit issue?)
On 03/11/2021 12:21, Gábor Csárdi wrote: Anyone else noticed some weirdness with the arm build when the prompt has ANSI escape codes? E.g. in a terminal run this options(prompt = "\033[1m> \033[0m") and then at the new prompt type in some longer word and press CTRL+A. Longer than what? The cursor does not go back to the beginning of the line, probably because the width of the prompt is not calculated correctly by the underlying system library. readline is not listed at https://mac.r-project.org/libs-arm64/ while it is listed among the intel libs. Does that mean that R uses libedit on arm64? Is this an issue with libedit? This is why we added extSoftversion(): please use it. For my personal build of R-patched (which uses readline 8.1) this works as I expected. With the CRAN build of 4.1.2 I do see some weirdness, e.g. > options(prompt = "\033[1mR> \033[0m") R> abcdef where after the Ctrl-A the cursor moves forwards a couple of characters. (That 'R>' is bold will not show up in an email. All on Monterey 12.0.1. AFAIK the reason for not distributing readline with binary distributions of R is perceived licence restrictions. -- Brian D. Ripley, rip...@stats.ox.ac.uk Emeritus Professor of Applied Statistics, University of Oxford ___ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
[R-SIG-Mac] ANSI escape weirdness on M1 (libedit issue?)
Anyone else noticed some weirdness with the arm build when the prompt has ANSI escape codes? E.g. in a terminal run this options(prompt = "\033[1m> \033[0m") and then at the new prompt type in some longer word and press CTRL+A. The cursor does not go back to the beginning of the line, probably because the width of the prompt is not calculated correctly by the underlying system library. readline is not listed at https://mac.r-project.org/libs-arm64/ while it is listed among the intel libs. Does that mean that R uses libedit on arm64? Is this an issue with libedit? Thanks, Gabor ___ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
