---
name: "SWISS::Ref"
section: "3pm"
platform: "linux"
package: "libswiss-perl"
version: "1.80-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SWISS::Ref"
---

# SWISS::Ref(3pm)

## Name

SWISS::Ref.pm

## Description

**SWISS::Ref** represents a single reference of a SWISS-PROT + TREMBL entry as specified in the user manual http://www.expasy.org/sprot/userman.html .

## Inherits from

SWISS::BaseClass.pm

## Attributes

- "RN"

  The reference number.

- "RP"

  The RP line(s), unwrapped as a string.

- "RC"

  Zero or more RC lines.

  Data structure:  {Token}\[qualifier1, qualifierN\].

  A hash of arrays. Hash keys are the RC tokens, array elements are the qualifiers for that token.

- "RX"

  References to bibliographic databases.

  Data structure:  {Database}\[identifier1, identifierN\].

  A hash of arrays. Hash keys are the names of bibliographic databases, array elements are the identifiers of the reference for that database.

- "RG"

  The RG line(s), unwrapped as a string.

- "RA"

  The list of Authors.

  An object of type SWISS::ListBase.

- "RT"

  The publication title, unwrapped as a string.

- "RL"

  The RL line.

  Data structure: String.

## Methods

### Standard methods

- new

  - fromText

  - toText

  ### Writing methods

- add\_MedlineID

  Add a RX line 'MEDLINE; nnnnnnnn.' to the reference.

- add\_Author

  Add an author to the RA line of the reference.

- rc\_sort

  Sort elements of the RC line alphabetically.

## POD ERRORS

Hey! **The above document had some coding errors, which are explained below:**

- Around line 542:

  \=over without closing =back