Haven't got any feedback on this one. Will we be getting a perl/python/ruby style -x switch for Rscript for R 2.5.0?
It certainly would give more flexibility to users of Rscript on non-UNIX systems where #! notation is not available. On 1/26/07, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > Good idea. ruby seems to work the same way. python does too but with > a slightly different definition: > > C:\> ruby -h | findstr strip > -x[directory] strip off text before #!ruby line and perhaps cd to directory > > C:\> perl -h | findstr strip > -x[directory] strip off text before #!perl line and perhaps cd to directory > > C:\> python -h | findstr skip > -x : skip first line of source, allowing use of non-Unix forms of #!cmd > > > On 1/26/07, Vladimir Eremeev <[EMAIL PROTECTED]> wrote: > > > > ActivePerl has '-x' switch which tells it to skip all lines in the file till > > "#!". > > This allows writing perl scripts in ordinary .bat files. > > > > ?shQuote contains a link with the following perl script example: > > ===8<=== > > @echo off > > :: hello.bat > > :: Windows executable Perl script > > :: Note: > > :: assumes perl.exe is in path > > :: otherwise, use absolute path > > perl -x -S "%0" %* > > goto end > > #!perl > > > > print "Hello, World!\n"; > > __END__ > > :end > > :: ------ end of hello.bat ------ > > > > Windows Notes: > > " -x " (lower case x): Skip all text until shebang line. > > " -S " (upper case S): Look for script using PATH variable. Special meaning > > in Windows: appends .bat or .cmd if lookup for name fails and name does not > > have either suffix. > > " %* " only on WinNT/2K/XP; use %1 %2 . . . %9 on Win9x/DOS > > ===8<=== > > > > I think the simplest way to implement shebang on windows would be embedding > > one more command line switch with similar functionality to perl's '-x'. > > > > -- > > View this message in context: > > http://www.nabble.com/Rscript-on-Windows-tf3120774.html#a8651815 > > Sent from the R devel mailing list archive at Nabble.com. > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel