---
name: "Bio::AlignIO::emboss"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.8-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::AlignIO::emboss"
---

# Bio::AlignIO::emboss(3pm)

Parse EMBOSS alignment output (from applications water and needle)

## NAME

Bio::AlignIO::emboss - Parse EMBOSS alignment output (from applications water and needle)

## SYNOPSIS

```
    # do not use the object directly
    use Bio::AlignIO;
    # read in an alignment from the EMBOSS program water
    my $in = Bio::AlignIO->new(-format => 'emboss',
                              -file   => 'seq.water');
    while( my $aln = $in->next_aln ) {
    # do something with the alignment
    }
```

## DESCRIPTION

This object handles parsing and writing pairwise sequence alignments from the EMBOSS suite.

## FEEDBACK

### Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list.  Your participation is much appreciated.

```
  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists
```

### Support

Please direct usage questions or support issues to the mailing list:

*bioperl-l@bioperl.org*

rather than to the module maintainer directly. Many experienced and  reponsive experts will be able look at the problem and quickly  address it. Please include a thorough description of the problem  with code and data examples if at all possible.

### Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web:

```
  https://github.com/bioperl/bioperl-live/issues
```

## AUTHOR - Jason Stajich

Email jason@bioperl.org

## APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a \_

### next\_aln

```
 Title   : next_aln
 Usage   : $aln = $stream->next_aln()
 Function: returns the next alignment in the stream.
 Returns : L<Bio::Align::AlignI> object - returns 0 on end of file
            or on error
 Args    : NONE
```

### write\_aln

```
 Title   : write_aln
 Usage   : $stream->write_aln(@aln)
 Function: writes the $aln object into the stream in emboss format
 Returns : 1 for success and 0 for error
 Args    : L<Bio::Align::AlignI> object
```