sheetjs/modules/51_xlsbmeta.js

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function parse_BrtMdtinfo(data, length) {
return {
flags: data.read_shift(4),
version: data.read_shift(4),
name: parse_XLWideString(data, length - 8)
};
}
function write_BrtMdtinfo(data) {
var o = new_buf(12 + 2 * data.name.length);
o.write_shift(4, data.flags);
o.write_shift(4, data.version);
write_XLWideString(data.name, o);
return o.slice(0, o.l);
}
function write_BrtMdb(mdb) {
var o = new_buf(4 + 8 * mdb.length);
o.write_shift(4, mdb.length);
for (var i = 0; i < mdb.length; ++i) {
o.write_shift(4, mdb[i][0]);
o.write_shift(4, mdb[i][1]);
}
return o;
}
function write_BrtBeginEsfmd(cnt, name) {
var o = new_buf(8 + 2 * name.length);
o.write_shift(4, cnt);
write_XLWideString(name, o);
return o.slice(0, o.l);
}
function write_BrtBeginEsmdb(cnt, cm) {
var o = new_buf(8);
o.write_shift(4, cnt);
o.write_shift(4, cm ? 1 : 0);
return o;
}
function parse_xlmeta_bin(data, name, _opts) {
var out = { Types: [] };
var opts = _opts || {};
var state = [];
var pass = false;
recordhopper(data, function(val, R_n, RT) {
switch (RT) {
case 335:
out.Types.push({ name: val.name });
break;
case 51:
break;
case 35:
state.push(R_n);
pass = true;
break;
case 36:
state.pop();
pass = false;
break;
default:
if ((R_n || "").indexOf("Begin") > 0) {
} else if ((R_n || "").indexOf("End") > 0) {
} else if (!pass || opts.WTF && state[state.length - 1] != "BrtFRTBegin")
throw new Error("Unexpected record " + RT + " " + R_n);
}
});
return out;
}
function write_xlmeta_bin() {
var ba = buf_array();
write_record(ba, "BrtBeginMetadata");
write_record(ba, "BrtBeginEsmdtinfo", write_UInt32LE(1));
write_record(ba, "BrtMdtinfo", write_BrtMdtinfo({
name: "XLDAPR",
version: 12e4,
flags: 3496657072
}));
write_record(ba, "BrtEndEsmdtinfo");
write_record(ba, "BrtBeginEsfmd", write_BrtBeginEsfmd(1, "XLDAPR"));
write_record(ba, "BrtBeginFmd");
write_record(ba, "BrtFRTBegin", write_UInt32LE(514));
write_record(ba, "BrtBeginDynamicArrayPr", write_UInt32LE(0));
write_record(ba, "BrtEndDynamicArrayPr", writeuint16(1));
write_record(ba, "BrtFRTEnd");
write_record(ba, "BrtEndFmd");
write_record(ba, "BrtEndEsfmd");
write_record(ba, "BrtBeginEsmdb", write_BrtBeginEsmdb(1, true));
write_record(ba, "BrtMdb", write_BrtMdb([[1, 0]]));
write_record(ba, "BrtEndEsmdb");
write_record(ba, "BrtEndMetadata");
return ba.end();
}