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MARC21XML.js
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{
"translatorID": "ce0ab080-7d72-4fa3-ab4b-4bd8950f3379",
"label": "MARC21XML",
"creator": "Philipp Zumstein",
"target": "xml",
"minVersion": "3.0",
"maxVersion": "",
"priority": 100,
"displayOptions": {
"exportNotes": false
},
"inRepository": true,
"translatorType": 2,
"browserSupport": "g",
"lastUpdated": "2014-09-07 12:58:51"
}
// DISCLAIMER:
// There are different cataloguing rules, specification of MARC dialects,
// various usage over time and places. This export translator will follow
// the current MARC21 bibliographic format which is described online:
// http://www.loc.gov/marc/bibliographic/
// MODS to MARC21 mapping:
// http://www.loc.gov/standards/mods/v3/mods2marc-mapping.html
// source for MARC21 XML examples (replace idn number):
// https://portal.dnb.de/opac.htm?method=requestMarcXml&idn=999678876
// Some more useful links:
// https://github.com/zotero/translators/blob/master/MARC.js
// https://github.com/zotero/translators/issues/762
// https://forums.zotero.org/discussion/38956/export-of-zotero-citation-to-marc-format-for-import-into-koha-lms
var recordLength;
var countFields = {"controlfield" : 0, "datafield" : 0, "subfield" : 0 };
var ns = "http://www.loc.gov/MARC21/slim";
var xmlDocument;
var typeMap = {
//default value "a" for every written text is taken (e.g. for book, article, report, webpage,...), everything else should be declared here
"artwork" : "k",
"audioRecording" : "j",
"computerProgram" : "m",
"film" : "g",
"manuscript" : "t",
"map" : "e",//"f" is normally less likely
"podcast" : "i",
"presentation" : "a",//slides -> a, speech -> i
"radioBroadcast" : "i",
"tvBroadcast" : "g",
"videoRecording" : "g"
};
var secondTypeMap = {//based on 008/24-27
"patent" : "j",
"statute" : "l",
"thesis" : "m",
"case" : "v"
}
String.prototype.replaceAt=function(index, character) {
return this.substr(0, index) + character + this.substr(index+character.length);
}
function fillZerosLeft(text, size) {
if (!text) text = '';
if (typeof text == 'number') text=text.toString();
missingCharacters = size-text.length;
if (missingCharacters>0) {
text = Array(missingCharacters+1).join('0') + text;
}
return text;
}
// @property can either a string which will be attachad as a textNode
// or just the Boolean "true" which will then just create the nodes
// without any content
function mapProperty(parentElement, elementName, attributes, property) {
if (!property) return null;
//var xmlDocument = parentElement.ownerDocument,
newElement = xmlDocument.createElementNS(ns, elementName);
if(attributes) {
for(var i in attributes) {
newElement.setAttribute(i, attributes[i]);
}
}
if (property && (typeof property == "string" || typeof property == "number") ) {
newElement.appendChild(xmlDocument.createTextNode(property));
recordLength += property.toString().length;
}
countFields[elementName]++;//for calculating the record length
parentElement.appendChild(newElement);
return newElement;
}
function doExport() {
Zotero.setCharacterSet("utf-8");
var parser = new DOMParser();
xmlDocument = parser.parseFromString('<collection xmlns="http://www.loc.gov/MARC21/slim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd" />', 'application/xml');
var item;
while(item = Zotero.nextItem()) {
Z.debug(item);
var exportNotes = Zotero.getOption("exportNotes");
//these two variables are important for several places
var typeOfRecord = "a";
if (typeMap[item.itemType]) typeOfRecord = typeMap[item.itemType];
var bibliographicLevel = "m";//default
if (item.itemType == "bookSection" || item.itemType == "conferencePaper" || item.itemType == "dictionaryEntry" || item.itemType == "encyclopediaArticle" || item.itemType == "journalArticle" || item.itemType == "magazineArticle" || item.itemType == "newspaperArticle") {
bibliographicLevel = "a";
}
//initial value
recordLength = 26;// 24 length of the leader + 1 record terminator + 1 field terminator after the leader and directory
var recordNode = mapProperty(xmlDocument.documentElement, "record", {"type" : "Bibliographic"} , true);
var currentFieldNode;
//BEGIN of the export
//leader will be added later, but before this node
var firstChild = mapProperty(recordNode, "controlfield", {"tag" : "001"}, item.itemID );
var cleanedDateModified = item.dateModified.replace(/\D/g , '');//format must be YYYYMMDDHHMMSS
mapProperty(recordNode, "controlfield", {"tag" : "005"}, cleanedDateModified + '.0' );
var dateFirst = ZU.strToDate(item.dateAdded);
var dateFirstString = dateFirst.year.substr(2,2) + fillZerosLeft(dateFirst.month,2) + fillZerosLeft(dateFirst.day,2);
var date;
var datePublicationString;
if (item.date) {
date = ZU.strToDate(item.date);
if (date.year) {
if (date.month) {
if (date.day) {
datePublicationString = 'e'+ date.year + fillZerosLeft(date.month,2) + fillZerosLeft(date.day,2);
} else {
datePublicationString = 'e'+date.year + fillZerosLeft(date.month,2)+'uu';
}
} else {
datePublicationString = 's'+date.year+' ';
}
} else {//date without year, possible?
datePublicationString = 'n ';
}
} else {//unknown date
datePublicationString = 'n ';
}
//position 18-34 where | is indicating that we don't have this information
var details = '|||||||||||||||||';
if (secondTypeMap[item.itemType]) details = details.replaceAt(24-18, secondTypeMap[item.itemType]);
if (item.itemType == "computerProgram") details = details.replaceAt(26-18, 'b');
if (item.itemType == "conferencePaper") details = details.replaceAt(29-18, '1');
if (item.itemType == "letter") details = details.replaceAt(33-18, 'i');
mapProperty(recordNode, "controlfield", {"tag" : "008"}, dateFirstString + datePublicationString + '|||'+ details +'||||u' );
if (item.ISBN) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "020", "ind1" : " ", "ind2" : " " } , true);
var cleanedISBN = item.ISBN.replace(/[a-zA-Z,\.;:\-_]/g, '');//can there be more than one isbn in the item.ISBN field?
if (cleanedISBN != item.ISBN) {
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , cleanedISBN );
mapProperty(currentFieldNode, "subfield", {"code" : "9"} , item.ISBN );
} else {
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.ISBN );
}
}
if (item.ISSN && bibliographicLevel == "m") {//see also field 773 for e.g. articles
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "022", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.ISSN );
}
if (item.DOI) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "024", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.DOI );
mapProperty(currentFieldNode, "subfield", {"code" : "2"} , "doi" );
}
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "040", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "c"} , 'Zotero' );//not strictly a Marc organization code, but we should mention the Zotero as the 'cataloguing tool' somewhere and here is a good place and is implicitely refered because of the 'u' in 008/37
if (item.language) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "041", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.language );
}
if (item.callNumber) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "090", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.callNumber );
}
//100 vs 700 and 110 vs 710
//--> practical decision: move everything to the 7xx fields
//because we cannot decide about "Main Entry" fields
//especially in regards with the different cataloguing rules
if (item.shortTitle) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "210", "ind1" : "0", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.shortTitle );
}
if (item.title) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "245", "ind1" : "1", "ind2" : "0" } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.title );
mapProperty(currentFieldNode, "subfield", {"code" : "n"} , item.volume );
}
if (item.edition) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "250", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.edition );
}
if (item.scale) {//for cartographic maps
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "255", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.scale );
}
if (item.version || item.system || item.programmingLanguage || item.company) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "256", "ind1" : " ", "ind2" : " " } , true );//is there a better place for this information?
var computerFileArray = [];
if (item.version) computerFileArray.push(item.version);
if (item.system) computerFileArray.push(item.system);
if (item.programmingLanguage) computerFileArray.push(item.programmingLanguage);
if (item.company) computerFileArray.push(item.company);
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , computerFileArray.join(", ") );
}
if (item.publisher || item.place || date) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "260", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.place );
mapProperty(currentFieldNode, "subfield", {"code" : "b"} , item.publisher );
if (date && date.year) {//date was defined in the beginning
mapProperty(currentFieldNode, "subfield", {"code" : "c"} , date.year );
}
}
if (item.numPages || item.numberOfVolumes || item.runningTime) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "300", "ind1" : " ", "ind2" : " " } , true );
var extensionArray = [];
if (item.numberOfVolumes) {
if ( item.numPages.match(/[a-zA-Z]/) ) {
extensionArray.push( item.numberOfVolumes );
} else {
extensionArray.push( item.numberOfVolumes + " v." );
}
}
if (item.numPages) {
if ( item.numPages.match(/[a-zA-Z]/) ) {
extensionArray.push( item.numPages );
} else {
extensionArray.push( item.numPages + " p." );
}
}
if (item.runningTime) {
extensionArray.push( item.runningTime );
}
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , extensionArray.join(" : ") );
}
if (item.medium || item.artworkSize) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "340", "ind1" : " ", "ind2" : " " }, true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.medium );
mapProperty(currentFieldNode, "subfield", {"code" : "b"} , item.artworkSize );
}
if (item.seriesTitle || item.seriesNumber) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "490", "ind1" : "0", "ind2" : " " }, true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.seriesTitle );
mapProperty(currentFieldNode, "subfield", {"code" : "v"} , item.seriesNumber );
}
if (item.notes.length>0 && exportNotes) {
var noteArray = [];
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "500", "ind1" : " ", "ind2" : " " } , true );
for (var i=0; i<item.notes.length; i++) {
noteArray.push(item.notes[i].note);
}
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , noteArray.join("; ") );
}
if (item.extra) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "500", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.extra );
}
if (item.thesisType || item.university) {//thesis
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "502", "ind1" : " ", "ind2" : " " } , true );
var thesisArray = [];
if (item.university) {
thesisArray.push(item.university);
}
if (item.thesisType) {
thesisArray.push(item.thesisType);
}
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , thesisArray.join(", ") );
}
if (item.type && item.itemType =="report") {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "513", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.type );
}
if (item.abstractNote) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "520", "ind1" : " ", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.abstractNote );
}
if (item.tags.length>0) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "573", "ind1" : " ", "ind2" : " " } , true );
for (var i=0; i<item.tags.length; i++) {
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.tags[i].tag );
}
}
for (var i=0; i<item.creators.length; i++) {
var creator = item.creators[i];
if (creator.fieldMode == "") {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "700", "ind1" : "1", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , creator.lastName+', '+creator.firstName );
} else {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "710", "ind1" : "2", "ind2" : " " } , true);
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , creator.lastName );
}
if (creator.creatorType != "author") {
mapProperty(currentFieldNode, "subfield", {"code" : "e"} , creator.creatorType );
}
}
//note 711 is repeatable but the subfield not. Thus, we create two different if statements.
if (item.conferenceName) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "711", "ind1" : "2", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.conferenceName );
}
if (item.meetingName) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "711", "ind1" : "2", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "a"} , item.meetingName );
}
if (bibliographicLevel == "a") {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "773", "ind1" : "0", "ind2" : " " } , true );
var subfieldCode;
if (item.itemType == "conferencePaper") {
subfieldCode = "m2am";
}
if (item.itemType == "bookSection" || item.itemType == "dictionaryEntry" || item.itemType == "encyclopediaArticle") {
subfieldCode = "nnam";
}
if (item.itemType == "journalArticle" || item.itemType == "magazineArticle" || item.itemType == "newspaperArticle") {
subfieldCode = "nnas";
}
mapProperty(currentFieldNode, "subfield", {"code" : "7"} , subfieldCode );
mapProperty(currentFieldNode, "subfield", {"code" : "t"} , item.publicationTitle );
var descriptionArray = [];
if (item.volume) descriptionArray.push(item.volume);
if (item.issue) descriptionArray.push(item.issue);
if (item.pages) descriptionArray.push(item.pages);
mapProperty(currentFieldNode, "subfield", {"code" : "h"} , descriptionArray.join(', ') );
mapProperty(currentFieldNode, "subfield", {"code" : "p"} , item.journalAbbreviation );
mapProperty(currentFieldNode, "subfield", {"code" : "x"} , item.ISSN );
//maybe move some other fields if journalArticle?
}
if (item.url) {
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "856", "ind1" : "4", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "u"} , item.url );
}
for (var i=0; i<item.attachments.length; i++) {
var link = item.attachments[i];
currentFieldNode = mapProperty(recordNode, "datafield", {"tag" : "856", "ind1" : "4", "ind2" : " " } , true );
mapProperty(currentFieldNode, "subfield", {"code" : "u"} , link.url );
mapProperty(currentFieldNode, "subfield", {"code" : "q"} , link.mimeType );
}
//finally, we will calculate the leader and add it as first child
recordLength += countFields["controlfield"]*13+countFields["datafield"]*15+countFields["subfield"]*2;
//controlfields: 12 characters in the directory + 1 field terminator
//datafields: 12 characters in the directory + 2 indicators + 1 field terminator
//subfields: 1 subfield code + 1 subfield terminator
//base adress of data starts after the leader and the directory
var baseAdressData = 24+countFields["controlfield"]*12+countFields["datafield"]*12+1;
var leaderContent = fillZerosLeft(recordLength,5) + "n" + typeOfRecord + bibliographicLevel +" a22" + fillZerosLeft(baseAdressData,5) +"zu 4500";
var newElement = xmlDocument.createElementNS(ns, "leader");
newElement.appendChild(xmlDocument.createTextNode(leaderContent));
recordNode.insertBefore(newElement, firstChild);
}
Zotero.write('<?xml version="1.0"?>'+"\n");
var serializer = new XMLSerializer();
Zotero.write( serializer.serializeToString(xmlDocument) );
//Z.debug( XML(serializer.serializeToString(xmlDocument)).toXMLString() ); //pretty print seems not to work, or maybe I don't know how
}