Extract some strings from a copyed list outside r to a character variable

I am looking for a way to convert specific words from a list outside of R to a character vector of strings.
I need this as I am doing some regex work and the words will be used as filter terms in a data frame.

For instance, let's say I have a series of unquoted words (e.g. If I were to type in the source screen of r-studio):

audi
chevrolet
honda
ford

I want the above to be turned into:

strings = c("audi","chevrolet","honda","ford")

As then, I can use it in the following filter:

mpg %>% filter(manufacturer %in% strings)

The above use is just an example. I'm really looking for a way to turn unquoted text, that has been either entered manually into R or copy-pasted into R, into a comma-separated character vector that can be used for various things. Also, what is the unquoted text that is not a comment in R?

Using readLines:

strings  <- readLines(con = textConnection("audi
chevrolet
honda
ford"))

strings
#[1] "audi"      "chevrolet" "honda"     "ford"

We can also use RStudio Multiple Cursors, and see related post: https://stackoverflow.com/questions/71472412/fastest-way-to-edit-multiple-lines-of-code-at-the-same-time

str_split from stringer is an option too.

You can copy past your string to an r character variable, you can see that \n the Line Feed is you splitting pattern

library(stringr)
st="audi
chevrolet
honda
ford"
cat(st)
#> audi
#> chevrolet
#> honda
#> ford
print(st)
#> [1] "audi\nchevrolet\nhonda\nford"
st2=str_split(st,pattern = "\\n")[[1]]
print(st2)
#> [1] "audi"      "chevrolet" "honda"     "ford"

^{Created on 2023-04-19 with reprex v2.0.2}