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R3600/modules/bibedit/lib/marcxml.js
3c3dc2e7fcc5maint-1.2

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marcxml.js
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/*
* This file is part of CDS Invenio.
* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 2009 CERN.
*
* CDS Invenio is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* CDS Invenio is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
/* A file contatining fuctions treating the MARC XML on the client side. */
function decodeMarcXMLRecord(marcXml){
/*Function taking the MARC XML representation of a recoprd and producing
a record encoded in the JavaScript data types */
var xmlStructureException = "Wrong structure of teh input XML";
var resultRecord = {};
if (window.DOMParser)
{
parser=new DOMParser();
xmlDoc=parser.parseFromString(marcXml, "text/xml");
}else{
// Internet Explorer
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false";
xmlDoc.loadXML(marcXml);
}
if (xmlDoc.documentElement.nodeName == "parsererror"){
throw xmlStructureException;
}
fields = xmlDoc.firstChild.childNodes;
for (fieldId=0; fieldId < fields.length; fieldId++ ){
field = fields[fieldId];
// first parsing the attributes
var tag = field.getAttribute("tag");
if (tag == null){
throw xmlStructureException;
}
var resultField = [[], "", "", "", 0];
// treating the field itself
if (field.localName == "datafield"){
// a normal data field
// generating the subfields based on the child elements
var ind1 = field.getAttribute("ind1");
var ind2 = field.getAttribute("ind2");
if (ind1 == null || ind2 == null){
throw xmlStructureException;
}
var resultSubfields = [];
var subfields = field.childNodes;
for (subfieldId = 0; subfieldId < subfields.length; subfieldId++){
subfield = subfields[subfieldId];
code = subfield.getAttribute("code");
if (code == null){
throw xmlStructureException;
}
value = subfield.textContent;
pos = resultSubfields.length;
resultSubfields[pos] = [code, value];
}
resultField[0] = resultSubfields;
resultField[1] = ind1;
resultField[2] = ind2;
} else {
if (field.localName == "controlfield"){
// a control field
resultField[3] = field.textContent;
}
else{
throw xmlStructureException;
}
}
// now appending the field to the result
if (resultRecord[tag] == undefined){
resultRecord[tag] = [];
}
var newPos = resultRecord[tag].length;
resultRecord[tag][newPos] = resultField;
}
return resultRecord;
}
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