wallabag/inc/3rdparty/libraries/PHPePub/EPub.OPF.php
2014-04-24 03:04:02 +02:00

1227 lines
29 KiB
PHP

<?php
/**
* ePub OPF file structure
*
* @author A. Grandt <php@grandt.com>
* @copyright 2009-2014 A. Grandt
* @license GNU LGPL, Attribution required for commercial implementations, requested for everything else.
* @version 3.20
*/
class Opf {
const _VERSION = 3.20;
/* Core Media types.
* These types are the only guaranteed mime types any ePub reader must understand.
* Any other type muse define a fall back whose fallback chain will end in one of these.
*/
const TYPE_GIF = "image/gif";
const TYPE_JPEG = "image/jpeg";
const TYPE_PNG = "image/png";
const TYPE_SVG = "image/svg+xml";
const TYPE_XHTML = "application/xhtml+xml";
const TYPE_DTBOOK = "application/x-dtbook+xml";
const TYPE_CSS = "text/css";
const TYPE_XML = "application/xml";
const TYPE_OEB1_DOC = "text/x-oeb1-document"; // Deprecated
const TYPE_OEB1_CSS = "text/x-oeb1-css"; // Deprecated
const TYPE_NCX = "application/x-dtbncx+xml";
private $bookVersion = EPub::BOOK_VERSION_EPUB2;
private $ident = "BookId";
public $date = NULL;
public $metadata = NULL;
public $manifest = NULL;
public $spine = NULL;
public $guide = NULL;
/**
* Class constructor.
*
* @return void
*/
function __construct($ident = "BookId", $bookVersion = EPub::BOOK_VERSION_EPUB2) {
$this->setIdent($ident);
$this->setVersion($bookVersion);
$this->metadata = new Metadata();
$this->manifest = new Manifest();
$this->spine = new Spine();
$this->guide = new Guide();
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->bookVersion, $this->ident, $this->date, $this->metadata, $this->manifest, $this->spine, $this->guide);
}
/**
*
* Enter description here ...
*
* @param string $ident
*/
function setVersion($bookVersion) {
$this->bookVersion = is_string($bookVersion) ? trim($bookVersion) : EPub::BOOK_VERSION_EPUB2;
}
function isEPubVersion2() {
return $this->bookVersion === EPub::BOOK_VERSION_EPUB2;
}
/**
*
* Enter description here ...
*
* @param string $ident
*/
function setIdent($ident = "BookId") {
$this->ident = is_string($ident) ? trim($ident) : "BookId";
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
$opf = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
. "<package xmlns=\"http://www.idpf.org/2007/opf\" unique-identifier=\"" . $this->ident . "\" version=\"" . $this->bookVersion . "\">\n";
$opf .= $this->metadata->finalize($this->bookVersion, $this->date);
$opf .= $this->manifest->finalize($this->bookVersion);
$opf .= $this->spine->finalize();
if ($this->guide->length() > 0) {
$opf .= $this->guide->finalize();
}
return $opf . "</package>\n";
}
// Convenience functions:
/**
*
* Enter description here ...
*
* @param string $title
* @param string $language
* @param string $identifier
* @param string $identifierScheme
*/
function initialize($title, $language, $identifier, $identifierScheme) {
$this->metadata->addDublinCore(new DublinCore("title", $title));
$this->metadata->addDublinCore(new DublinCore("language", $language));
$dc = new DublinCore("identifier", $identifier);
$dc->addAttr("id", $this->ident);
$dc->addOpfAttr("scheme", $identifierScheme);
$this->metadata->addDublinCore($dc);
}
/**
*
* Enter description here ...
*
* @param string $id
* @param string $href
* @param string $mediaType
*/
function addItem($id, $href, $mediaType, $properties = NULL) {
$this->manifest->addItem(new Item($id, $href, $mediaType, $properties));
}
/**
*
* Enter description here ...
*
* @param string $idref
* @param bool $linear
*/
function addItemRef($idref, $linear = TRUE) {
$this->spine->addItemref(new Itemref($idref, $linear));
}
/**
*
* Enter description here ...
*
* @param string $type
* @param string $title
* @param string $href
*/
function addReference($type, $title, $href) {
$this->guide->addReference(new Reference($type, $title, $href));
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $value
*/
function addDCMeta($name, $value) {
$this->metadata->addDublinCore(new DublinCore($name, $value));
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $content
*/
function addMeta($name, $content) {
$this->metadata->addMeta($name, $content);
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $fileAs
* @param string $role Use the MarcCode constants
*/
function addCreator($name, $fileAs = NULL, $role = NULL) {
$dc = new DublinCore(DublinCore::CREATOR, trim($name));
if ($fileAs !== NULL) {
$dc->addOpfAttr("file-as", trim($fileAs));
}
if ($role !== NULL) {
$dc->addOpfAttr("role", trim($role));
}
$this->metadata->addDublinCore($dc);
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $fileAs
* @param string $role Use the MarcCode constants
*/
function addColaborator($name, $fileAs = NULL, $role = NULL) {
$dc = new DublinCore(DublinCore::CONTRIBUTOR, trim($name));
if ($fileAs !== NULL) {
$dc->addOpfAttr("file-as", trim($fileAs));
}
if ($role !== NULL) {
$dc->addOpfAttr("role", trim($role));
}
$this->metadata->addDublinCore($dc);
}
}
/**
* ePub OPF Metadata structures
*/
class Metadata {
const _VERSION = 3.00;
private $dc = array();
private $meta = array();
/**
* Class constructor.
*
* @return void
*/
function __construct() {
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->dc, $this->meta);
}
/**
*
* Enter description here ...
*
* @param DublinCore $dc
*/
function addDublinCore($dc) {
if ($dc != NULL && is_object($dc) && get_class($dc) === "DublinCore") {
$this->dc[] = $dc;
}
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $content
*/
function addMeta($name, $content) {
$name = is_string($name) ? trim($name) : NULL;
if (isset($name)) {
$content = is_string($content) ? trim($content) : NULL;
}
if (isset($content)) {
$this->meta[] = array ($name => $content);
}
}
/**
*
* @param string $bookVersion
* @param int $date
* @return string
*/
function finalize($bookVersion = EPub::BOOK_VERSION_EPUB2, $date = NULL) {
$metadata = "\t<metadata xmlns:dc=\"http://purl.org/dc/elements/1.1/\"\n";
if ($bookVersion === EPub::BOOK_VERSION_EPUB2) {
$metadata .= "\t\txmlns:opf=\"http://www.idpf.org/2007/opf\"\n\t\txmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n";
} else {
$metadata .= "\t\txmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n";
if (!isset($date)) {
$date = time();
}
$metadata .= "\t\t<meta property=\"dcterms:modified\">" . gmdate("Y-m-d\TH:i:s\Z", $date) . "</meta>\n";
}
foreach ($this->dc as $dc) {
$metadata .= $dc->finalize($bookVersion);
}
foreach ($this->meta as $data) {
list($name, $content) = each($data);
$metadata .= "\t\t<meta name=\"" . $name . "\" content=\"" . $content . "\" />\n";
}
return $metadata . "\t</metadata>\n";
}
}
/**
* ePub OPF Dublin Core (dc:) Metadata structures
*/
class DublinCore {
const _VERSION = 3.00;
const CONTRIBUTOR = "contributor";
const COVERAGE = "coverage";
const CREATOR = "creator";
const DATE = "date";
const DESCRIPTION = "description";
const FORMAT = "format";
const IDENTIFIER = "identifier";
const LANGUAGE = "language";
const PUBLISHER = "publisher";
const RELATION = "relation";
const RIGHTS = "rights";
const SOURCE = "source";
const SUBJECT = "subject";
const TITLE = "title";
const TYPE = "type";
private $dcName = NULL;
private $dcValue = NULL;
private $attr = array();
private $opfAttr = array();
/**
* Class constructor.
*
* @return void
*/
function __construct($name, $value) {
$this->setDc($name, $value);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->dcName, $this->dcValue, $this->attr, $this->opfAttr);
}
/**
*
* Enter description here ...
*
* @param string $name
* @param string $value
*/
function setDc($name, $value) {
$this->dcName = is_string($name) ? trim($name) : NULL;
if (isset($this->dcName)) {
$this->dcValue = isset($value) ? (string)$value : NULL;
}
if (! isset($this->dcValue)) {
$this->dcName = NULL;
}
}
/**
*
* Enter description here ...
*
* @param string $attrName
* @param string $attrValue
*/
function addAttr($attrName, $attrValue) {
$attrName = is_string($attrName) ? trim($attrName) : NULL;
if (isset($attrName)) {
$attrValue = is_string($attrValue) ? trim($attrValue) : NULL;
}
if (isset($attrValue)) {
$this->attr[$attrName] = $attrValue;
}
}
/**
*
* Enter description here ...
*
* @param string $opfAttrName
* @param string $opfAttrValue
*/
function addOpfAttr($opfAttrName, $opfAttrValue) {
$opfAttrName = is_string($opfAttrName) ? trim($opfAttrName) : NULL;
if (isset($opfAttrName)) {
$opfAttrValue = is_string($opfAttrValue) ? trim($opfAttrValue) : NULL;
}
if (isset($opfAttrValue)) {
$this->opfAttr[$opfAttrName] = $opfAttrValue;
}
}
/**
*
* @param string $bookVersion
* @return string
*/
function finalize($bookVersion = EPub::BOOK_VERSION_EPUB2) {
$dc = "\t\t<dc:" . $this->dcName;
if (sizeof($this->attr) > 0) {
while (list($name, $content) = each($this->attr)) {
$dc .= " " . $name . "=\"" . $content . "\"";
}
}
if ($bookVersion === EPub::BOOK_VERSION_EPUB2 && sizeof($this->opfAttr) > 0) {
while (list($name, $content) = each($this->opfAttr)) {
$dc .= " opf:" . $name . "=\"" . $content . "\"";
}
}
return $dc . ">" . $this->dcValue . "</dc:" . $this->dcName . ">\n";
}
}
/**
* ePub OPF Manifest structure
*/
class Manifest {
const _VERSION = 3.00;
private $items = array();
/**
* Class constructor.
*
* @return void
*/
function __construct() {
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->items);
}
/**
*
* Enter description here ...
*
* @param Item $item
*/
function addItem($item) {
if ($item != NULL && is_object($item) && get_class($item) === "Item") {
$this->items[] = $item;
}
}
/**
*
* @param string $bookVersion
* @return string
*/
function finalize($bookVersion = EPub::BOOK_VERSION_EPUB2) {
$manifest = "\n\t<manifest>\n";
foreach ($this->items as $item) {
$manifest .= $item->finalize($bookVersion);
}
return $manifest . "\t</manifest>\n";
}
}
/**
* ePub OPF Item structure
*/
class Item {
const _VERSION = 3.00;
private $id = NULL;
private $href = NULL;
private $mediaType = NULL;
private $properties = NULL;
private $requiredNamespace = NULL;
private $requiredModules = NULL;
private $fallback = NULL;
private $fallbackStyle = NULL;
/**
* Class constructor.
*
* @return void
*/
function __construct($id, $href, $mediaType, $properties = NULL) {
$this->setId($id);
$this->setHref($href);
$this->setMediaType($mediaType);
$this->setProperties($properties);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->id, $this->href, $this->mediaType);
unset ($this->properties, $this->requiredNamespace, $this->requiredModules, $this->fallback, $this->fallbackStyle);
}
/**
*
* Enter description here ...
*
* @param string $id
*/
function setId($id) {
$this->id = is_string($id) ? trim($id) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $href
*/
function setHref($href) {
$this->href = is_string($href) ? trim($href) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $mediaType
*/
function setMediaType($mediaType) {
$this->mediaType = is_string($mediaType) ? trim($mediaType) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $properties
*/
function setProperties($properties) {
$this->properties = is_string($properties) ? trim($properties) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $requiredNamespace
*/
function setRequiredNamespace($requiredNamespace) {
$this->requiredNamespace = is_string($requiredNamespace) ? trim($requiredNamespace) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $requiredModules
*/
function setRequiredModules($requiredModules) {
$this->requiredModules = is_string($requiredModules) ? trim($requiredModules) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $fallback
*/
function setfallback($fallback) {
$this->fallback = is_string($fallback) ? trim($fallback) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $fallbackStyle
*/
function setFallbackStyle($fallbackStyle) {
$this->fallbackStyle = is_string($fallbackStyle) ? trim($fallbackStyle) : NULL;
}
/**
*
* @param string $bookVersion
* @return string
*/
function finalize($bookVersion = EPub::BOOK_VERSION_EPUB2) {
$item = "\t\t<item id=\"" . $this->id . "\" href=\"" . $this->href . "\" media-type=\"" . $this->mediaType . "\" ";
if ($bookVersion === EPub::BOOK_VERSION_EPUB3 && isset($this->properties)) {
$item .= "properties=\"" . $this->properties . "\" ";
}
if (isset($this->requiredNamespace)) {
$item .= "\n\t\t\trequired-namespace=\"" . $this->requiredNamespace . "\" ";
if (isset($this->requiredModules)) {
$item .= "required-modules=\"" . $this->requiredModules . "\" ";
}
}
if (isset($this->fallback)) {
$item .= "\n\t\t\tfallback=\"" . $this->fallback . "\" ";
}
if (isset($this->fallbackStyle)) {
$item .= "\n\t\t\tfallback-style=\"" . $this->fallbackStyle . "\" ";
}
return $item . "/>\n";
}
}
/**
* ePub OPF Spine structure
*/
class Spine {
const _VERSION = 1.00;
private $itemrefs = array();
private $toc = NULL;
/**
* Class constructor.
*
* @return void
*/
function __construct($toc = "ncx") {
$this->setToc($toc);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->itemrefs, $this->toc);
}
/**
*
* Enter description here ...
*
* @param string $toc
*/
function setToc($toc) {
$this->toc = is_string($toc) ? trim($toc) : NULL;
}
/**
*
* Enter description here ...
*
* @param Itemref $itemref
*/
function addItemref($itemref) {
if ($itemref != NULL
&& is_object($itemref)
&& get_class($itemref) === "Itemref"
&& !isset($this->itemrefs[$itemref->getIdref()])) {
$this->itemrefs[$itemref->getIdref()] = $itemref;
}
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
$spine = "\n\t<spine toc=\"" . $this->toc . "\">\n";
foreach ($this->itemrefs as $itemref) {
$spine .= $itemref->finalize();
}
return $spine . "\t</spine>\n";
}
}
/**
* ePub OPF ItemRef structure
*/
class Itemref {
const _VERSION = 3.00;
private $idref = NULL;
private $linear = TRUE;
/**
* Class constructor.
*
* @return void
*/
function __construct($idref, $linear = TRUE) {
$this->setIdref($idref);
$this->setLinear($linear);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->idref, $this->linear);
}
/**
*
* Enter description here ...
*
* @param string $idref
*/
function setIdref($idref) {
$this->idref = is_string($idref) ? trim($idref) : NULL;
}
/**
*
* Enter description here ...
*
* @return string $idref
*/
function getIdref() {
return $this->idref;
}
/**
*
* Enter description here ...
*
* @param bool $linear
*/
function setLinear($linear = TRUE) {
$this->linear = $linear === TRUE;
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
$itemref = "\t\t<itemref idref=\"" . $this->idref . "\"";
if ($this->linear == FALSE) {
return $itemref .= " linear=\"no\" />\n";
}
return $itemref . " />\n";
}
}
/**
* ePub OPF Guide structure
*/
class Guide {
const _VERSION = 3.00;
private $references = array();
/**
* Class constructor.
*
* @return void
*/
function __construct() {
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->references);
}
/**
*
* Enter description here ...
*
*/
function length() {
return sizeof($this->references);
}
/**
*
* Enter description here ...
*
* @param Reference $reference
*/
function addReference($reference) {
if ($reference != NULL && is_object($reference) && get_class($reference) === "Reference") {
$this->references[] = $reference;
}
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
$ref = "";
if (sizeof($this->references) > 0) {
$ref = "\n\t<guide>\n";
foreach ($this->references as $reference) {
$ref .= $reference->finalize();
}
$ref .= "\t</guide>\n";
}
return $ref;
}
}
/**
* Reference constants
*/
class Reference {
const _VERSION = 1.00;
/* REFERENCE types are derived from the "Chicago Manual of Style"
*/
/** Acknowledgements page */
const ACKNOWLEDGEMENTS = "acknowledgements";
/** Bibliography page */
const BIBLIOGRAPHY = "bibliography";
/** Colophon page */
const COLOPHON = "colophon";
/** Copyright page */
const COPYRIGHT_PAGE = "copyright-page";
/** Dedication */
const DEDICATION = "dedication";
/** Epigraph */
const EPIGRAPH = "epigraph";
/** Foreword */
const FOREWORD = "foreword";
/** Glossary page */
const GLOSSARY = "glossary";
/** back-of-book style index */
const INDEX = "index";
/** List of illustrations */
const LIST_OF_ILLUSTRATIONS = "loi";
/** List of tables */
const LIST_OF_TABLES = "lot";
/** Notes page */
const NOTES = "notes";
/** Preface page */
const PREFACE = "preface";
/** Table of contents */
const TABLE_OF_CONTENTS = "toc";
/** Page with possibly title, author, publisher, and other metadata */
const TITLE_PAGE = "titlepage";
/** First page of the book, ie. first page of the first chapter */
const TEXT = "text";
// ******************
// ePub3 constants
// ******************
// Document partitions
/** The publications cover(s), jacket information, etc. This is officially in ePub3, but works for ePub 2 as well */
const COVER = "cover";
/** Preliminary material to the content body, such as tables of contents, dedications, etc. */
const FRONTMATTER = "frontmatter";
/** The main (body) content of a document. */
const BODYMATTER = "bodymatter";
/** Ancillary material occurring after the document body, such as indices, appendices, etc. */
const BACKMATTER = "backmatter";
private $type = NULL;
private $title = NULL;
private $href = NULL;
/**
* Class constructor.
*
* @param string $type
* @param string $title
* @param string $href
*/
function __construct($type, $title, $href) {
$this->setType($type);
$this->setTitle($title);
$this->setHref($href);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset ($this->type, $this->title, $this->href);
}
/**
*
* Enter description here ...
*
* @param string $type
*/
function setType($type) {
$this->type = is_string($type) ? trim($type) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $title
*/
function setTitle($title) {
$this->title = is_string($title) ? trim($title) : NULL;
}
/**
*
* Enter description here ...
*
* @param string $href
*/
function setHref($href) {
$this->href = is_string($href) ? trim($href) : NULL;
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
return "\t\t<reference type=\"" . $this->type . "\" title=\"" . $this->title . "\" href=\"" . $this->href . "\" />\n";
}
}
/**
* Common Marc codes.
* Ref: http://www.loc.gov/marc/relators/
*/
class MarcCode {
const _VERSION = 3.00;
/**
* Adapter
*
* Use for a person who
* 1) reworks a musical composition, usually for a different medium, or
* 2) rewrites novels or stories for motion pictures or other audiovisual medium.
*/
const ADAPTER = "adp";
/**
* Annotator
*
* Use for a person who writes manuscript annotations on a printed item.
*/
const ANNOTATOR = "ann";
/**
* Arranger
*
* Use for a person who transcribes a musical composition, usually for a different
* medium from that of the original; in an arrangement the musical substance remains
* essentially unchanged.
*/
const ARRANGER = "arr";
/**
* Artist
*
* Use for a person (e.g., a painter) who conceives, and perhaps also implements,
* an original graphic design or work of art, if specific codes (e.g., [egr],
* [etr]) are not desired. For book illustrators, prefer Illustrator [ill].
*/
const ARTIST = "art";
/**
* Associated name
*
* Use as a general relator for a name associated with or found in an item or
* collection, or which cannot be determined to be that of a Former owner [fmo]
* or other designated relator indicative of provenance.
*/
const ASSOCIATED_NAME = "asn";
/**
* Author
*
* Use for a person or corporate body chiefly responsible for the intellectual
* or artistic content of a work. This term may also be used when more than one
* person or body bears such responsibility.
*/
const AUTHOR = "aut";
/**
* Author in quotations or text extracts
*
* Use for a person whose work is largely quoted or extracted in a works to which
* he or she did not contribute directly. Such quotations are found particularly
* in exhibition catalogs, collections of photographs, etc.
*/
const AUTHOR_IN_QUOTES = "aqt";
/**
* Author of afterword, colophon, etc.
*
* Use for a person or corporate body responsible for an afterword, postface,
* colophon, etc. but who is not the chief author of a work.
*/
const AUTHOR_OF_AFTERWORD = "aft";
/**
* Author of introduction, etc.
*
* Use for a person or corporate body responsible for an introduction, preface,
* foreword, or other critical matter, but who is not the chief author.
*/
const AUTHOR_OF_INTRO = "aui";
/**
* Bibliographic antecedent
*
* Use for the author responsible for a work upon which the work represented by
* the catalog record is based. This can be appropriate for adaptations, sequels,
* continuations, indexes, etc.
*/
const BIB_ANTECEDENT = "ant";
/**
* Book producer
*
* Use for the person or firm responsible for the production of books and other
* print media, if specific codes (e.g., [bkd], [egr], [tyd], [prt]) are not desired.
*/
const BOOK_PRODUCER = "bkp";
/**
* Collaborator
*
* Use for a person or corporate body that takes a limited part in the elaboration
* of a work of another author or that brings complements (e.g., appendices, notes)
* to the work of another author.
*/
const COLABORATOR = "clb";
/**
* Commentator
*
* Use for a person who provides interpretation, analysis, or a discussion of the
* subject matter on a recording, motion picture, or other audiovisual medium.
* Compiler [com] Use for a person who produces a work or publication by selecting
* and putting together material from the works of various persons or bodies.
*/
const COMMENTATOR = "cmm";
/**
* Designer
*
* Use for a person or organization responsible for design if specific codes (e.g.,
* [bkd], [tyd]) are not desired.
*/
const DESIGNER = "dsr";
/**
* Editor
*
* Use for a person who prepares for publication a work not primarily his/her own,
* such as by elucidating text, adding introductory or other critical matter, or
* technically directing an editorial staff.
*/
const EDITORT = "edt";
/**
* Illustrator
*
* Use for the person who conceives, and perhaps also implements, a design or
* illustration, usually to accompany a written text.
*/
const ILLUSTRATOR = "ill";
/**
* Lyricist
*
* Use for the writer of the text of a song.
*/
const LYRICIST = "lyr";
/**
* Metadata contact
*
* Use for the person or organization primarily responsible for compiling and
* maintaining the original description of a metadata set (e.g., geospatial
* metadata set).
*/
const METADATA_CONTACT = "mdc";
/**
* Musician
*
* Use for the person who performs music or contributes to the musical content
* of a work when it is not possible or desirable to identify the function more
* precisely.
*/
const MUSICIAN = "mus";
/**
* Narrator
*
* Use for the speaker who relates the particulars of an act, occurrence, or
* course of events.
*/
const NARRATOR = "nrt";
/**
* Other
*
* Use for relator codes from other lists which have no equivalent in the MARC
* list or for terms which have not been assigned a code.
*/
const OTHER = "oth";
/**
* Photographer
*
* Use for the person or organization responsible for taking photographs, whether
* they are used in their original form or as reproductions.
*/
const PHOTOGRAPHER = "pht";
/**
* Printer
*
* Use for the person or organization who prints texts, whether from type or plates.
*/
const PRINTER = "prt";
/**
* Redactor
*
* Use for a person who writes or develops the framework for an item without
* being intellectually responsible for its content.
*/
const REDACTOR = "red";
/**
* Reviewer
*
* Use for a person or corporate body responsible for the review of book, motion
* picture, performance, etc.
*/
const REVIEWER = "rev";
/**
* Sponsor
*
* Use for the person or agency that issued a contract, or under whose auspices
* a work has been written, printed, published, etc.
*/
const SPONSOR = "spn";
/**
* Thesis advisor
*
* Use for the person under whose supervision a degree candidate develops and
* presents a thesis, memoir, or text of a dissertation.
*/
const THESIS_ADVISOR = "ths";
/**
* Transcriber
*
* Use for a person who prepares a handwritten or typewritten copy from original
* material, including from dictated or orally recorded material.
*/
const TRANSCRIBER = "trc";
/**
* Translator
*
* Use for a person who renders a text from one language into another, or from
* an older form of a language into the modern form.
*/
const TRANSLATOR = "trl";
}
?>