CODEWITHSUNDEEP
roptparse
tok
tok

Reputation: 981

R optparse and short flag arguments

I can't get optparse to work with short arguments. What's wrong with this?

library("optparse")
packageVersion("optparse")
option_list = list(
  make_option(c("-f", "--file"), action = "store", type="character", default=NULL)
)
opt_parser = OptionParser(option_list=option_list)
parse_args(opt_parser, args=c("--file=anyfile.txt")) # this works
parse_args(opt_parser, args=c("-f anyfile.txt")) # but this does not

[1] ‘1.7.1’
Error in getopt_options(object, args) : 
  Error in getopt(spec = spec, opt = args) : 
  short flag "f" requires an argument, but has none

Upvotes: 1

Views: 778

Answers (1)

mirmo
mirmo

Reputation: 376

args is a character vector. From help:

A character vector containing command line options to be parsed. Default is everything after the Rscript program in the command line. If positional_arguments is not FALSE then parse_args will look for positional arguments at the end of this vector.

args=c("-f", "anyfile.txt")

Upvotes: 0

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