I am trying to pass multiple file path arguments via command line to an Rscript which can then be processed using an arguments parser. Ultimately I would want something like this
Rscript test.R --inputfiles fileA.txt fileB.txt fileC.txt --printvar yes --size 10 --anotheroption helloworld -- etc...
args$inputfiles = "fileA.txt", "fileB.txt", "fileC.txt"
After searching around, and avoiding to write a new package from the bottom up, I figured the best way to input multiple arguments using the package optparse is to separate input files by a character which is most likely illegal to be included in a file name (for example, a colon)
Rscript test.R --inputfiles fileA.txt:fileB.txt:fileC.txt etc...
File names can also have spaces in them as long as the spaces are escaped (optparse will take care of this)
Rscript test.R --inputfiles file\ A.txt:file\ B.txt:fileC.txt etc...
Ultimatley, it would be nice to have a package (possibly a modified version of optparse) that would support multiple arguments like mentioned in the question and below
Rscript test.R --inputfiles fileA.txt fileB.txt fileC.txt
One would think such trivial features would be implemented into a widely used package such as optparse