Hi -- The following code works, but it feels wrong to me, like when I see code bastardizing grep or map into doing the work of foreach. Here's I'm using s///e to accumulate ids from some html... is there a preferred way to use regexps to snip out and save pieces of document? Thanks for any style tips -- rkg 
use strict;
use FileSlurp;
my @disp;
foreach my $f (glob "*.htm") {
    print STDERR "working on $f...\n";
    open (F, $f) or die "cannot open $f";
    my $content = read_file($f);
    $content =~    s{id=(\d+)}{push(@disp, $1);$1}sieg;
    close(F);
}
print join(",", @disp), "\n";

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rkg

In reply to Using s///e and it just doesn't feel right by rkg

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