Bryan Harris wrote:
> If I'm reading in many-megabyte files, is it considered to be more
> efficient to read it into an array, then loop over the array? Or is
> reading a line at a time okay?
>
Depends really on the size and what you trying to do. Almost all that I
do, I read a line at time, but others will swallow in the file. Most of my
regex's deal with single lines or a single line will start another set of
sequences.
Wags ;)
> e.g.
>
> **************************************
> while (<>) {
> # do some process with each line
> }
> **************************************
>
> or...
>
> **************************************
> @lines = <>;
> foreach (@lines) {
> # do some process with each line
> }
> **************************************
>
> I realize the second will use more memory, but what's a few megabytes
> in today's computers? I'm more worried about the OS having to go
> back to the disk a couple hundred-thousand times -- seems like it'd
> be hard on the disk.
>
> TIA.
>
> - Bryan
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