|Perl: the Markov chain saw|
Re: Re: Re: Re: Test for standard inputby mikfire (Deacon)
|on Oct 03, 2002 at 18:05 UTC||Need Help??|
Sorry, I cannot resist. Your code is ummmm doing lots of things that I do not think are what you intend.
The more idiomatic way of saying this is
I would also like to point out that you are testing the wrong kind of equality in your code -- you used the string equality test ( eq ) instead of the numeric test ( == ). In this case it worked, but it will someday drive you nuts trying to hunt this kind of bug down.
If I have figured this out correctly, you are trying to parse some command line options. I would strongly recommend using Getopt::Long, a core module that does this job very well.
I am assuming you really mean to shift the argument you just parsed out of @ARGV. Unfortunately, shift with no arguments assumes you mean @_, which is not @ARGV. Again, it likely works in this case, but I really doubt this is your intended affect.
The same holds true for the next line.
This code will never be executed. I am assuming it is a hold-over from your previous problems. The 'if' at the top of the program makes certain that @ARGV has to have something in it.
The assignment back to @ARGV is a little.... ugly IMHO. It took me several tries to figure out what it is doing. I would likely write this expression as
but this is likely more a stylistic thing.
Oh, good use of the -w flag. It appears, though, you forgot to use strict. It will seem a pain at first, but it will really help as your programs get longer and more complex.