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{
"translatorID": "91acf493-0de7-4473-8b62-89fd141e6c74",
"label": "MAB2",
"creator": "Simon Kornblith. Adaptions for MAB2: Leon Krauthausen (FUB)",
"target": "mab2",
"minVersion": "1.0.0b3.r1",
"maxVersion": "",
"priority": 100,
"inRepository": true,
"translatorType": 1,
"browserSupport": "gcs",
"lastUpdated": "2014-05-20 17:57:47"
}
function detectImport() {
var mab2RecordRegexp = /^[0-9]{3}[a-z ]{2}[a-z ]{3}$/
var read = Zotero.read(8);
if (mab2RecordRegexp.test(read)) {
return true;
}
}
var fieldTerminator = "\x1E";
var recordTerminator = "\x1D";
var subfieldDelimiter = "\x1F";
/*
* CLEANING FUNCTIONS
*/
// general purpose cleaning
function clean(value) {
value = value.replace(/^[\s\.\,\/\:;]+/, '');
value = value.replace(/[\s\.\,\/\:;]+$/, '');
value = value.replace(/<<+/g, '');
value = value.replace(/>>+/g, '');
value = value.replace(/ +/g, ' ');
var char1 = value[0];
var char2 = value[value.length-1];
if ((char1 == "[" && char2 == "]") || (char1 == "(" && char2 == ")")) {
// chop of extraneous characters
return value.substr(1, value.length-2);
}
return value;
}
function cleanTag(value) {
// Chop off Authority-IDs
value = value.slice(0, value.indexOf('|'));
return value;
}
// number extraction
function pullNumber(text) {
var pullRe = /[0-9]+/;
var m = pullRe.exec(text);
if (m) {
return m[0];
}
}
// ISBN extraction
function pullISBN(text) {
var pullRe = /[0-9X\-]+/;
var m = pullRe.exec(text);
if (m) {
return m[0];
}
}
// corporate author extraction
function corpAuthor(author) {
return {lastName:author, fieldMode:true};
}
// regular author extraction
function author(author, type, useComma) {
return Zotero.Utilities.cleanAuthor(author, type, useComma);
}
// MAB2 author extraction
// evaluates subfield $b and sets authType
function authorMab(author, authType, useComma) {
if (!authType) var authType='author';
authType = authType.replace('[Hrsg.]', 'editor');
authType = authType.replace('[Mitarb.]', 'contributor');
authType = authType.replace('[Übers.]', 'translator');
return Zotero.Utilities.cleanAuthor(author, authType, useComma);
}
/*
* END CLEANING FUNCTIONS
*/
var record = function() {
this.directory = new Object();
this.leader = "";
this.content = "";
// defaults
this.indicatorLength = 2;
this.subfieldCodeLength = 2;
}
// import a binary MAB2 record into this record
record.prototype.importBinary = function(record) {
// get directory and leader
var directory = record.substr(0, record.indexOf(fieldTerminator));
this.leader = directory.substr(0, 24);
var directory = directory.substr(24);
// get various data
this.indicatorLength = parseInt(this.leader[10], 10);
this.subfieldCodeLength = parseInt(this.leader[11], 10);
var baseAddress = parseInt(this.leader.substr(12, 5), 10);
// get record data
var contentTmp = record.substr(baseAddress);
// MARC wants one-byte characters, so when we have multi-byte UTF-8
// sequences, add null characters so that the directory shows up right. we
// can strip the nulls later.
this.content = "";
for (i=0; i<contentTmp.length; i++) {
this.content += contentTmp[i];
if (contentTmp.charCodeAt(i) > 0x00FFFF) {
this.content += "\x00\x00\x00";
} else if (contentTmp.charCodeAt(i) > 0x0007FF) {
this.content += "\x00\x00";
} else if (contentTmp.charCodeAt(i) > 0x00007F) {
this.content += "\x00";
}
}
// read directory
for (var i=0; i<directory.length; i+=12) {
var tag = parseInt(directory.substr(i, 3), 10);
var fieldLength = parseInt(directory.substr(i+3, 4), 10);
var fieldPosition = parseInt(directory.substr(i+7, 5), 10);
if (!this.directory[tag]) {
this.directory[tag] = new Array();
}
this.directory[tag].push([fieldPosition, fieldLength]);
}
}
// add a field to this record
record.prototype.addField = function(field, indicator, value) {
field = parseInt(field, 10);
// make sure indicator is the right length
if (indicator.length > this.indicatorLength) {
indicator = indicator.substr(0, this.indicatorLength);
} else if (indicator.length != this.indicatorLength) {
indicator = Zotero.Utilities.lpad(indicator, " ", this.indicatorLength);
}
// add terminator
value = indicator+value+fieldTerminator;
// add field to directory
if (!this.directory[field]) {
this.directory[field] = new Array();
}
this.directory[field].push([this.content.length, value.length]);
// add field to record
this.content += value;
}
// get all fields with a certain field number
record.prototype.getField = function(field) {
field = parseInt(field, 10);
var fields = new Array();
// make sure fields exist
if (!this.directory[field]) {
return fields;
}
// get fields
for (var i in this.directory[field]) {
var location = this.directory[field][i];
// add to array, replacing null characters
fields.push([this.content.substr(location[0], this.indicatorLength),
this.content.substr(location[0]+this.indicatorLength,
location[1]-this.indicatorLength-1).replace(/\x00/g, "")]);
}
return fields;
}
// get subfields from a field
record.prototype.getFieldSubfields = function(tag) { // returns a two-dimensional array of values
var fields = this.getField(tag);
var returnFields = new Array();
for (var i in fields) {
returnFields[i] = new Object();
var subfields = fields[i][1].split(subfieldDelimiter);
if (subfields.length == 1) {
returnFields[i]["?"] = fields[i][1];
} else {
for (var j in subfields) {
if (subfields[j]) {
var subfieldIndex = subfields[j].substr(0, this.subfieldCodeLength-1);
if (!returnFields[i][subfieldIndex]) {
returnFields[i][subfieldIndex] = subfields[j].substr(this.subfieldCodeLength-1);
}
}
}
}
}
return returnFields;
}
// add field to DB
record.prototype._associateDBField = function(item, fieldNo, part, fieldName, execMe, arg1, arg2) {
var field = this.getFieldSubfields(fieldNo);
Zotero.debug('MAB2: found '+field.length+' matches for '+fieldNo+part);
if (field) {
for (var i in field) {
var value = false;
for (var j=0; j<part.length; j++) {
var myPart = part[j];
if (field[i][myPart]) {
if (value) {
value += " "+field[i][myPart];
} else {
value = field[i][myPart];
}
}
}
if (value) {
value = clean(value);
if (execMe) {
value = execMe(value, arg1, arg2);
}
if (fieldName == "creator") {
item.creators.push(value);
} else {
item[fieldName] = value;
return;
}
}
}
}
}
// add field to DB as tags
record.prototype._associateTags = function(item, fieldNo, part) {
var field = this.getFieldSubfields(fieldNo);
for (var i in field) {
for (var j=0; j<part.length; j++) {
var myPart = part[j];
if (field[i][myPart]) {
item.tags.push(cleanTag(field[i][myPart]));
}
}
}
}
// this function loads a MAB2 record into our database
record.prototype.translate = function(item) {
// get item type
if (this.leader) {
var marcType = this.leader[6];
if (marcType == "g") {
item.itemType = "film";
} else if (marcType == "k" || marcType == "e" || marcType == "f") {
item.itemType = "artwork";
} else if (marcType == "t") {
item.itemType = "manuscript";
} else {
item.itemType = "book";
}
} else {
item.itemType = "book";
}
// Extract MAB2 fields
// FUB Added language, edition, pages, url, edition, series, ISBN, url
for (var i = 100; i <= 196; i++) {
if (this.getFieldSubfields(i)[0]) {
var authorfield = "a"
var field = this.getFieldSubfields(i)[0]['a'];
if (!field){
//sometimes (or always?) the author is in p not a
var field = this.getFieldSubfields(i)[0]['p'];
authorfield = "p";
}
var authType = this.getFieldSubfields(i)[0]['b'];
this._associateDBField(item, i, authorfield, "creator", authorMab, authType, true);
}
}
// if (this.getFieldSubfields("800")[0]) this._associateDBField(item, "800", "a", "creator", author, "author", true);
if (!item.language) this._associateDBField(item, "037b", "a", "language");
this._associateDBField(item, "200", "a", "creator", corpAuthor);
if (!item.title) this._associateDBField(item, "331", "a", "title");
this._associateDBField(item, "304", "a", "extra");
if (this.getFieldSubfields("335")[0]) {
item.title = item.title + ": " + this.getFieldSubfields("335")[0]['a'];
}
if (!item.edition) this._associateDBField(item, "403", "a", "edition");
if (!item.place) this._associateDBField(item, "410", "a", "place");
if (!item.publisher) this._associateDBField(item, "412", "a", "publisher");
if (!item.title) this._associateDBField(item, "1300", "a", "title");
if (!item.date) this._associateDBField(item, "425", "a", "date", pullNumber);
if (!item.pages) this._associateDBField(item, "433", "a", "pages", pullNumber);
if (!item.series) this._associateDBField(item, "451", "a", "series");
this._associateDBField(item, "501", "a", "extra");
this._associateDBField(item, "519", "a", "extra");
if (!item.edition) this._associateDBField(item, "523", "a", "edition");
if (!item.ISBN) this._associateDBField(item, "540", "a", "ISBN", pullISBN);
if (!item.date) this._associateDBField(item, "595", "a", "date", pullNumber);
if (!item.url) this._associateDBField(item, "655e", "u", "url");
// Extract German subject headings (RSWK) as tags
this._associateTags(item, "902", "acfgpkstz");
this._associateTags(item, "907", "acfgpkstz");
this._associateTags(item, "912", "acfgpkstz");
this._associateTags(item, "917", "acfgpkstz");
this._associateTags(item, "922", "acfgpkstz");
this._associateTags(item, "927", "acfgpkstz");
this._associateTags(item, "932", "acfgpkstz");
this._associateTags(item, "937", "acfgpkstz");
this._associateTags(item, "942", "acfgpkstz");
}
function doImport() {
var text;
var holdOver = ""; // part of the text held over from the last loop
Zotero.setCharacterSet("utf-8");
while (text = Zotero.read(4096)) { // read in 4096 byte increments
var records = text.split("\x1D");
if (records.length > 1) {
records[0] = holdOver + records[0];
holdOver = records.pop(); // skip last record, since it's not done
for (var i in records) {
var newItem = new Zotero.Item();
// create new record
var rec = new record();
rec.importBinary(records[i]);
rec.translate(newItem);
newItem.complete();
}
} else {
holdOver += text;
}
}
}
var exports = {
"record":record,
"fieldTerminator":fieldTerminator,
"recordTerminator":recordTerminator,
"subfieldDelimiter":subfieldDelimiter
};
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