Just a curiosity.... Given: 
    local $/;  # Added in an update
    while( <IN> ) { while( /$regex/gm ) { ... } }

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and: 
     
    local $/;  # Added in an update
    my $file = <IN>;
    while( $file=~/$regex/gm ) { ... }

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Is there any significant advantage to using the top method over the bottom one? Or is the only benefit just being able to use $_ implicitly? Just curious if there was more to the story.

UPDATE: Sorry, forget to mention that I did local/undef $/ so I could slurp the file into one big string (have 8000+ substitutions to make and plenty of memory -- file is about 1.3MB, system has 12GB). That would make the two roughly equivalent, right?

Elda Taluta; Sarks Sark; Ark Arks

In reply to Advantage of while(<>){while()}? by Argel

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