Is there an R function to create a raw string based on an existing object?-CodePudding

I am creating a filepath to read in R through a hard coded raw string (because otherwise the filepath raises an error):

filepath <- r"(C:\User\me\folder\data)"

However, I would like to create the following functionality to prevent the user from writing directly the filepath within the raw string:

filepath <- "C:\User\me\folder\data"
# I know the as_raw function doesn't exist, but I am wondering whether there is something similar
filepath <- as_raw(filepath)

Is there any R function that does this? Or should the user always modify the raw string (or use a readline function)?

CodePudding user response：

Any of these could be used:

filepath <- "C:/User/me/folder/data"

filepath <- "C:\\User\\me\\folder\\data"

filepath <- file.path("C:", "User", "me", "folder", "data")

filepath <- file.choose() # if file exists.  Interactive.

filepath <- choose.dir() # same but for directory

filepath <- readClipboard() # if filepath is on clipboard. \ is ok.

filepath <- r"(C:\User\me\folder\data)"

CodePudding user response：

You could either ask the user to submit a file path with two forward slashes:

filepath <- "C://User//me//folder//data"

Or you can just ask for the part after the user name and then glue it together with the user path:

folder <- "folder//data"

filepath <- paste0("C://Users//", Sys.info()["user"], "//", folder)

CodePudding user response：

charToRaw(filepath)

Should do what you want, I think.