Hi Mikko,
I tried running a few different things, and it seems as though explicitly using `open()` and opening a blocking connection works. ```R cat("hello", file = "hello.txt") zip("hello.zip", "hello.txt") local({ conn <- unz("hello.zip", "hello.txt") on.exit(close(conn)) ## you can use "r" instead of "rt" ## ## 'blocking = TRUE' is the default, so remove if desired open(conn, "rb", blocking = TRUE) readLines(conn) }) ``` A blocking connection might be undesirable for you, in which case someone else might have a better solution. On Thu, Oct 24, 2024 at 10:58 AM Marttila Mikko via R-help <r-help@r-project.org> wrote: > > Dear list, > > I'm seeing a strange interaction with readLines() and unz() when reading > a file without an empty final line. The final line gets dropped silently: > > > cat("hello", file = "hello.txt") > > zip("hello.zip", "hello.txt") > adding: hello.txt (stored 0%) > > readLines(unz("hello.zip", "hello.txt")) > character(0) > > The documentation for readLines() says if the final line is incomplete for > "non-blocking text-mode connections" the line is "pushed back, silently" > but otherwise "accepted with a warning". > > My understanding is that the unz() here is blocking so the line should be > accepted. Is that incorrect? If so, how would I go about reading such > lines from a zip file? > > Best, > > Mikko > > > This e-mail transmission may contain confidential or legally privileged > information that is intended only for the individual or entity named in the > e-mail address. If you are not the intended recipient, you are hereby > notified that any disclosure, copying, distribution, or reliance upon the > contents of this e-mail is strictly prohibited. If you have received this > e-mail transmission in error, please reply to the sender, so that they can > arrange for proper delivery, and then please delete the message from your > computer systems. Thank you. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide https://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide https://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.