On Thursday 20 Feb 2003 11:24 am, Philipp Gruemmer wrote:
> Hello
>
> I'm just minutes away from bashing the famous 'head against the
> monitor'. Here's my problem:
>
> I have an array, let's name it @input. Another array, @blacklist,
> contains lines which should be matched against the @input array and
> then do something.
>
> I tried something like:
>
> foreach $line (@input)
> {
> foreach $cond (@blacklist)
> {
> if ($line =~ /$cond/) {print "True"}; #or do sth. else here.
> #Just an example
> };
> };
>
> Isn't shis code supposed to read the first line of the @input array then
> read the first line of the @blacklist array, see if the $line contains a
> $cond and then ptrint "true". After that it should carry on with the second
> line from both arrays....
Do you mean that if the condition suceeds you want to print "True" and then
skip the rest of the @blacklist array?
If so, simply put a 'last' inside your condition. The code below demonstrates
what I mean.
[gary@gary gary]$ cat t
#!/usr/bin/perl -w
my @input=('one','two','three');
my @blacklist=('two','four');
foreach $line (@input) {
foreach $cond (@blacklist) {
print "$line=$cond...";
if ($line=~/$cond/) {
print "true\n";
last;
}
print "false\n";
}
}
[gary@gary gary]$
>
> I tried several variants, which all produced some weird output (either too
> less or to many matches etc.).
>
> What am I missing here?
>
> I greatly appreciate your help.
>
> Greetings, Philipp
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Gary Stainburn
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