Hi, Everyone!
In my, "I don't want to be a newbie anymore!" quest I've been going through the Llama book. It's taught me a lot! I understand what
/^\\[d-m_](\w)*\s/i means now. That's a big change. I also understand that I'd probably never need *that* search....
Wasted time aside, there were a few things I ran into that don't do what I thought they should do. Can someone tell me why?
This first question has to do with code trying to write (1..9).0 seven times in a row; making a column heading, so to speak. This first bit doesn't work:
my @step=(1..9);
push (@step, 0);
my $step;
foreach (@step) {
$step . $_;
}
print ($step x 7);
but this does:
my @step=(1..9);
push (@step, 0);
my @stepCount=(1..7);
foreach (@stepCount) {
print @step;
}
yet they look like they should do the same thing. Why don't they?
The next bit of Why_Doesn't_it_do_It code is supposed to check for one of two strings, and make sure that it prints three times.
Merlyn will probably recognize some of the arguments:
my $what = "fred|barney";
while (<>) {
chomp;
if ($_ =~ ($what){3}) {
print "It's in there.\n";
}
else {
print "Not there.\n";
}
}
doesn't do what this does:
my $what = "(fred|barney){3}";
while (<>) {
chomp;
if ($_ =~ $what) {
print "It's in there.\n";
}
else {
print "Not there.\n";
}
}
Yet to my don'tBeANewbieAnymore eyes it looks like the first code is basically the same as the second, if = means "=". Can someone tell me what's the real difference between the two bits of code?
Thanks. Cheers!
-p
Don't worry about people stealing your ideas. If your ideas are any good, you'll have to ram them down people's throats.
-Howard Aiken
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