On Sep 14, 2011, at 4:15 PM, Brian Oney wrote: > Hi there, > new idea (at 10 at night). All the emails keep me thinking (btw thanks for > all the feedback). > What does this do on linux? > > getOption("pdfviewer") > ### I got this idea from: getS3method("print","vignette") >
It gives you the detected PDF viewer as I was explaining (essentially R_PDFVIEWER). The two detected settings I was referring to are R_PDFVIEWER (for PDF) and R_BROWSER (for URLs) which are the initial settings for the "pdfviewer" and "browser" options. Note that it's what it say it is - R_PDFVIEWER is usually something like acroread or evince so not particularly useful for your purpose ... Cheers, Simon > On windows, (an advantage...) somebody wrote a little program "open.exe" that > comes stock with an R-installation, which somehow accesses the file system to > find the default program to for a certain file type. I am guessing this > little beauty is the engine of "shell.exec". > > (An honest) cheers, > Brian > > On 9/14/2011 7:49 PM, Simon Urbanek wrote: >> On Sep 14, 2011, at 1:10 PM, Henrik Bengtsson wrote: >> >>> On Wed, Sep 14, 2011 at 8:35 AM, Simon Urbanek >>> <simon.urba...@r-project.org> wrote: >>>> On Sep 14, 2011, at 11:08 AM, Brian Oney wrote: >>>> >>>>> Hi Steve, >>>>> >>>>> a quick look at "browseURL" will tell you that indeed "system" or >>>>> "shell.exec" (on a windows platform) is used to open up a URL. >>>>> The "open " part of the proposed function was written to work on a Mac. >>>>> Because Mac is a unix platform, I assumed that the function "open" would >>>>> be omnipresent on unix platforms, my mistake. >>>> Well, the problem is that "open" is unfortunately mapped to openvt on >>>> Linux systems which is a quite obscure anachronism. But since Linux is >>>> Linux there is no standard way to open a file, so it doesn't really matter >>>> ;) -- xdg-utils come closest to what one may call standard but on many >>>> systems they are not installed by default (in fact on none of the Linux >>>> machines I have around). For URLs R does the hard work to try to figure >>>> out what to do with them (it also does the same for PDFs), but you may end >>>> up opening things in a browser although that's not what you had in mind. >>>> >>>> >>>>> Well I guess, we know how to make to work on a mac. >>>>> >>>> Yes, "open" works very well on Macs and is extremely useful (I use it all >>>> the time - among other things you can use it with directories to browse >>>> them...) - it is still beyond me why other unices don't bother ... >>> Apple probably patented it. >>> >> I'm pretty sure it's at least as old as NeXT so that's way before the abuse >> of software patents ;) - but who knows ... >> >> Cheers, >> S >> >> >> >>> /Henrik >>> >>>> Cheers, >>>> Simon >>>> >>>> >>>> >>>>> I will make the transition to Linux and get back to this in a while, ok? >>>>> >>>>> Cheers, >>>>> Brian >>>>> >>>>> >>>>> On 9/14/2011 2:50 PM, Stephen Weston wrote: >>>>>> 2011/9/14 Uwe Ligges<lig...@statistik.tu-dortmund.de>: >>>>>>> On 14.09.2011 12:27, Brian Oney wrote: >>>>>>>> Hi List, >>>>>>>> I hope this is correct list to propose function extensions, sorry if >>>>>>>> not. >>>>>>>> I am preparing for a (hopefully painless) migration to linux. As far as >>>>>>>> I am aware of, the function "shell.exec" only comes with the windows >>>>>>>> version. I think this is a handy little function and would like to see >>>>>>>> my scripts work when I migrate. >>>>>>>> >>>>>>>> May I propose something (like the following)? >>>>>>>> >>>>>>>> open.file<- function(file) { >>>>>>>> if(.Platform$OS.type=="windows") {shell.exec(file)} else >>>>>>>> {system(paste("open ",file))} >>>>>>>> } >>>>>>>> >>>>>>>> Or just a small addition to the shell.exec function and no new named >>>>>>>> function. >>>>>>>> Hope the idea isn't received as "too stupid". >>>>>>> What is "open" supposed to do on a non-Windows machine? I do not have >>>>>>> it on >>>>>>> the only Linux installation I looked at now, hence we obviously cannot >>>>>>> assume it exists on an arbitrary installation. >>>>>> I think the nearest equivalent for those running Gnome or KDE may be >>>>>> "xdg-open". So there would probably need to be a new option for >>>>>> specifying >>>>>> the appropriate command. >>>>>> >>>>>> Personally, I am more inclined to use "system" for executing commands, >>>>>> and "browseURL" for opening documents. "browseURL" even uses >>>>>> "xdg-open" in my R installation on my Linux machine. >>>>>> >>>>>> - Steve >>>>>> >>>>>> >>>>>>> Best, >>>>>>> Uwe Ligges >>>>>>> >>>>>>> >>>>>>>> Cheers, >>>>>>>> Brian >>>>>>>> >>>>>>>> ______________________________________________ >>>>>>>> R-devel@r-project.org mailing list >>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-devel >>>>>>> ______________________________________________ >>>>>>> R-devel@r-project.org mailing list >>>>>>> https://stat.ethz.ch/mailman/listinfo/r-devel >>>>>>> >>>>> ______________________________________________ >>>>> R-devel@r-project.org mailing list >>>>> https://stat.ethz.ch/mailman/listinfo/r-devel >>>>> >>>>> >>>> ______________________________________________ >>>> R-devel@r-project.org mailing list >>>> https://stat.ethz.ch/mailman/listinfo/r-devel >>>> >>> > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel