perl expression Q

bobjones · 07-24-2002, 12:05 PM

i am trying to write something that will define the amount of periods in a line. i have just started learning perl, but im broad in c++.

i have no idea what the syntax is, but i want something to the affect of:

$i=0;
$period = /.;
foreach $period ($line)
{$i++}

print "this line has $i periods.\n\n";

am i anywhere close???

thanx! Bob Jones

lackluster · 07-24-2002, 12:22 PM

first off, your / slashes should be \ slashes (escape). Next up, I have found in many languages it is easy (not always the best way though) to split() the string by what you're looking for then count the array returned and that is your number

. give it a try.

stromgol · 07-24-2002, 12:22 PM

Simply like this.

$nb_period = ( $line =~ tr/.//);

bobjones · 07-24-2002, 12:31 PM

awesome it wurks!!! thanx GUI's!

lackluster · 07-24-2002, 12:51 PM

stromgol - thanks, that's a timesaver