---
name: "Bio::SearchIO::axt"
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::SearchIO::axt"
---

# Bio::SearchIO::axt(3pm)

a parser for axt format reports

## NAME

Bio::SearchIO::axt - a parser for axt format reports

## SYNOPSIS

```
  use Bio::SearchIO;
  my $parser = Bio::SearchIO->new(-format => 'axt',
                                 -file   => 't/data/report.blastz');
  while( my $result = $parser->next_result ) {
    while( my $hit = $result->next_hit ) {
      while( my $hsp = $hit->next_hsp ) {
      }
    }
  }
```

## DESCRIPTION

This is a parser and event-generator for AXT format reports.  BLASTZ reports (Schwartz et al,(2003) Genome Research, 13:103-107) are normally in LAV format but are commonly post-processed to AXT format; many precomputed BLASTZ reports, such as those found in the UCSC Genome Browser, are in AXT format.   This parser will also parse any AXT format produced from any lav report and directly out of BLAT.

## 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-at-bioperl.org

## APPENDIX

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

### new

```
 Title   : new
 Usage   : my $obj = Bio::SearchIO::axt->new();
 Function: Builds a new Bio::SearchIO::axt object
 Returns : an instance of Bio::SearchIO::axt
 Args    :
```

### next\_result

```
 Title   : next_result
 Usage   : my $hit = $searchio->next_result;
 Function: Returns the next Result from a search
 Returns : Bio::Search::Result::ResultI object
 Args    : none
```

### start\_element

```
 Title   : start_element
 Usage   : $eventgenerator->start_element
 Function: Handles a start element event
 Returns : none
 Args    : hashref with at least 2 keys 'Data' and 'Name'
```

### end\_element

```
 Title   : start_element
 Usage   : $eventgenerator->end_element
 Function: Handles an end element event
 Returns : none
 Args    : hashref with at least 2 keys 'Data' and 'Name'
```

### element

```
 Title   : element
 Usage   : $eventhandler->element({'Name' => $name, 'Data' => $str});
 Function: Convience method that calls start_element, characters, end_element
 Returns : none
 Args    : Hash ref with the keys 'Name' and 'Data'
```

### characters

```
 Title   : characters
 Usage   : $eventgenerator->characters($str)
 Function: Send a character events
 Returns : none
 Args    : string
```

### \_mode

```
 Title   : _mode
 Usage   : $obj->_mode($newval)
 Function:
 Example :
 Returns : value of _mode
 Args    : newvalue (optional)
```

### within\_element

```
 Title   : within_element
 Usage   : if( $eventgenerator->within_element($element) ) {}
 Function: Test if we are within a particular element
           This is different than 'in' because within can be tested
           for a whole block.
 Returns : boolean
 Args    : string element name
```

### in\_element

```
 Title   : in_element
 Usage   : if( $eventgenerator->in_element($element) ) {}
 Function: Test if we are in a particular element
           This is different than 'in' because within can be tested
           for a whole block.
 Returns : boolean
 Args    : string element name
```

### start\_document

```
 Title   : start_document
 Usage   : $eventgenerator->start_document
 Function: Handles a start document event
 Returns : none
 Args    : none
```

### end\_document

```
 Title   : end_document
 Usage   : $eventgenerator->end_document
 Function: Handles an end document event
 Returns : Bio::Search::Result::ResultI object
 Args    : none
```

### result\_count

```
 Title   : result_count
 Usage   : my $count = $searchio->result_count
 Function: Returns the number of results we have processed
 Returns : integer
 Args    : none
```