yep. one thing I forgot to mention is that, for the application I'm currently writing (which is basically an ASP cross-reference generator) I need to have the line number where each block appears. so, the code I'm using is something more like: 
sub get_asp_blocks {
    my($file) = @_;
    open(FILE, $file) or die "can't open '$file': $!\n";

    my $dot = 1;
    my @blocks = ( ["HTM", $dot, ""] );
    my $state = "HTM";
    my $last;
    while(read(FILE, $char, 1)) {
        $dot++ if $char eq "\n";
        if($last eq "<" && $char eq "%" && $state eq "HTM") {
            chop $blocks[-1][-1];
            $state = "ASP";
            push(@blocks, ["ASP", $dot, ""]);
        } elsif($last eq "%" && $char eq ">" && $state eq "ASP") {
            chop $blocks[-1][-1];
            $state = "HTM";
            push(@blocks,  ["HTM", $dot, ""]);
        } else {
            $blocks[-1][-1] .= $char;
        }
        $last = $char;
    }
    close(FILE);
    return @blocks;
}

[download]
this way, each element of the returned array contains three elements: the type (ASP or HTM), the line number, and the block itself.

cheers,
Aldo

King of Laziness, Wizard of Impatience, Lord of Hubris

In reply to Re: Re: parsing an ASP file by dada
in thread parsing an ASP file by dada

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