sheetjs/bits/31_rels.js

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/* 9.3.2 OPC Relationships Markup */
var RELS = {
WB: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
SHEET: "http://sheetjs.openxmlformats.org/officeDocument/2006/relationships/officeDocument"
};
function parse_rels(data, currentFilePath) {
if (!data) return data;
if (currentFilePath.charAt(0) !== '/') {
currentFilePath = '/'+currentFilePath;
}
var rels = {};
var hash = {};
var resolveRelativePathIntoAbsolute = function (to) {
var toksFrom = currentFilePath.split('/');
toksFrom.pop(); // folder path
var toksTo = to.split('/');
var reversed = [];
while (toksTo.length !== 0) {
var tokTo = toksTo.shift();
if (tokTo === '..') {
toksFrom.pop();
} else if (tokTo !== '.') {
toksFrom.push(tokTo);
}
}
return toksFrom.join('/');
};
data.match(tagregex).forEach(function(x) {
var y = parsexmltag(x);
/* 9.3.2.2 OPC_Relationships */
if (y[0] === '<Relationship') {
var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; rel.TargetMode = y.TargetMode;
var canonictarget = y.TargetMode === 'External' ? y.Target : resolveRelativePathIntoAbsolute(y.Target);
rels[canonictarget] = rel;
hash[y.Id] = rel;
}
});
rels["!id"] = hash;
return rels;
}
XMLNS.RELS = 'http://schemas.openxmlformats.org/package/2006/relationships';
var RELS_ROOT = writextag('Relationships', null, {
//'xmlns:ns0': XMLNS.RELS,
'xmlns': XMLNS.RELS
});
/* TODO */
function write_rels(rels) {
var o = [];
o[o.length] = (XML_HEADER);
o[o.length] = (RELS_ROOT);
keys(rels['!id']).forEach(function(rid) { var rel = rels['!id'][rid];
o[o.length] = (writextag('Relationship', null, rel));
});
if(o.length>2){ o[o.length] = ('</Relationships>'); o[1]=o[1].replace("/>",">"); }
return o.join("");
}