Re: virtual file concatenation

xhoster@xxxxxxxxx wrote:
When refactoring code to read from more than one file in sequence, I will
occasionally use somthing like this, which works but makes me
feel dirty:

open my $fh, "cat file1 file2 file3 |" or die $!;
while(<$fh>) {

@ARGV = qw/ file1 file2 file3 /;
while ( <> ) {


I'd rather virtually concatenate file handles, like this:

## $fh1 $fh2 $fh3 are already open read handles
my $fh= IO::Something->new($fh1,$fh2,$fh3);
while (<$fh>) {

for my $fh ( $fh1, $fh2, $fh3 ) {
while ( <$fh> ) {



John
--
Perl isn't a toolbox, but a small machine shop where you can special-order
certain sorts of tools at low cost and in short order. -- Larry Wall
.

Relevant Pages