>>>>>>>> "Bryan" == Bryan R Harris<bryan_r_har...@raytheon.com> writes: >>> >>> Bryan> How can I use the "safe" 3-argument open and still be able to read >>> off >>> a >>> Bryan> pipe? >>> >>> You don't. 2-arg open has to be good for something. >>> >>> And 2-arg open is perfectly safe if the second arg is a literal: >>> >>> open OTHER, "<-" or die; >>> open my $handle, "<-" or die; >>> >>> Don't let anyone tell you "Always use 3-arg open" unless they also >>> footnote it with "unless you have no variables involved". >> >> >> Hmm. With this tool if there's a pipe and no user-supplied files, I just >> put "-" onto the list of files to search -- using the 2-arg open. Someone >> suggested that was a bad idea, so I switched to the 3-arg open but that >> broke reading off the pipe. >> >> So is it right that in order to read off the pipe *and* be safe, I have to >> have both types of "open" statements in my code? > > If your file names aren't hard-coded into the program then yes. > > This same question received five replies on 18 August. Did you read > them?
Absolutely, I did -- and I got the script working by having logic that selects whether to use the 2-arg open or the 3-arg open. But since I had Randall's attention I thought I'd make sure that was the better thing to do. Thanks to all for the responses -- a great list! - Bryan -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
