On Tue, Aug 09, 2005 at 09:07:16PM -0700, Stephen A. Jarjoura wrote: > Hey, all; > > I needed to count the number of occurances of a substring within a string > and used the following method, which worked. I am just wondering if there > is a better way to do it, or (god forbid) a "best practice". > > ## $buffer contains an entire XML file > $buffer =~ s/(\<transfer)/$transfer_count++;$1/sg; > print "Transfer Count: $transfer_count\n"; > > Did I miss some obvious, and easier method? >
Basically, you need a loop. s///g allows you to hide the loop, but is less efficient because you're updating the string. You could use m//g with an explicit loop instead: $transfer_count++ while $buffer =~ m/\<transfer/g; Ronald _______________________________________________ Boston-pm mailing list [email protected] http://mail.pm.org/mailman/listinfo/boston-pm
