require 5.000;
require Exporter;
-@ISA = qw(Exporter);
-@EXPORT = qw(look);
+use strict;
+
+our $VERSION = '1.00';
+our @ISA = qw(Exporter);
+our @EXPORT = qw(look);
=head1 NAME
=cut
sub look {
- local(*FH,$key,$dict,$fold) = @_;
+ my($fh,$key,$dict,$fold) = @_;
local($_);
- my(@stat) = stat(FH)
+ my(@stat) = stat($fh)
or return -1;
my($size, $blksize) = @stat[7,11];
$blksize ||= 8192;
my($min, $max, $mid) = (0, int($size / $blksize));
while ($max - $min > 1) {
$mid = int(($max + $min) / 2);
- seek(FH, $mid * $blksize, 0)
+ seek($fh, $mid * $blksize, 0)
or return -1;
- <FH> if $mid; # probably a partial line
- $_ = <FH>;
+ <$fh> if $mid; # probably a partial line
+ $_ = <$fh>;
chop;
s/[^\w\s]//g if $dict;
$_ = lc $_ if $fold;
}
}
$min *= $blksize;
- seek(FH,$min,0)
+ seek($fh,$min,0)
or return -1;
- <FH> if $min;
+ <$fh> if $min;
for (;;) {
- $min = tell(FH);
- defined($_ = <FH>)
+ $min = tell($fh);
+ defined($_ = <$fh>)
or last;
chop;
s/[^\w\s]//g if $dict;
$_ = lc $_ if $fold;
last if $_ ge $key;
}
- seek(FH,$min,0);
+ seek($fh,$min,0);
$min;
}