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Revision 1.3 - (download) (as text) (annotate)
Tue May 1 16:50:24 2007 UTC (12 years, 7 months ago) by olson
Branch: MAIN
CVS Tags: mgrast_dev_08112011, rast_rel_2009_05_18, mgrast_dev_08022011, rast_rel_2014_0912, rast_rel_2008_06_18, myrast_rel40, rast_rel_2008_06_16, mgrast_dev_05262011, rast_rel_2008_12_18, mgrast_dev_04082011, rast_rel_2008_07_21, rast_rel_2010_0928, rast_2008_0924, mgrast_version_3_2, mgrast_dev_12152011, rast_rel_2008_04_23, mgrast_dev_06072011, rast_rel_2008_09_30, rast_rel_2009_0925, rast_rel_2010_0526, rast_rel_2014_0729, mgrast_dev_02212011, rast_rel_2010_1206, mgrast_release_3_0, mgrast_dev_03252011, rast_rel_2010_0118, mgrast_rel_2008_0924, mgrast_rel_2008_1110_v2, rast_rel_2009_02_05, rast_rel_2011_0119, mgrast_rel_2008_0625, mgrast_release_3_0_4, mgrast_release_3_0_2, mgrast_release_3_0_3, mgrast_release_3_0_1, mgrast_dev_03312011, mgrast_release_3_1_2, mgrast_release_3_1_1, mgrast_release_3_1_0, mgrast_dev_04132011, rast_rel_2008_10_09, mgrast_dev_04012011, rast_release_2008_09_29, mgrast_rel_2008_0806, mgrast_rel_2008_0923, mgrast_rel_2008_0919, rast_rel_2009_07_09, rast_rel_2010_0827, mgrast_rel_2008_1110, myrast_33, rast_rel_2011_0928, rast_rel_2008_09_29, mgrast_rel_2008_0917, rast_rel_2008_10_29, mgrast_dev_04052011, mgrast_dev_02222011, rast_rel_2009_03_26, mgrast_dev_10262011, rast_rel_2008_11_24, rast_rel_2008_08_07, HEAD
Changes since 1.2: +1 -1 lines
clone the digest so that checksum() may be called multiple times

package ContigMD5;

#
# Little class to normalize & compute contig MD5 checksums.
#
#
# We throw away > fasta identifier lines, as well as whitespace. It is
# incumbent on the user of this class to stop sending it data when the
# end of the sequence is reached.
#

use strict;
use Digest::MD5;

sub new
{
    my($class) = @_;

    my $self = {
	digest => new Digest::MD5->new(),
    };

    return bless $self, $class;
}

sub add
{
    my($self, $txt) = @_;

    $txt =~ s/^>[^\n]*\n//m;
    $txt =~ s/\s*//g;
    $self->{digest}->add(lc($txt));
}

sub checksum
{
    my($self) = @_;
    return $self->{digest}->clone()->hexdigest;
}
1;

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