forked from sheetjs/sheetjs
667 lines
19 KiB
JavaScript
667 lines
19 KiB
JavaScript
/*! sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */
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function u8_to_dataview(array) {
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return new DataView(array.buffer, array.byteOffset, array.byteLength);
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}
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function u8str(u8) {
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return typeof TextDecoder != "undefined" ? new TextDecoder().decode(u8) : utf8read(a2s(u8));
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}
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function u8concat(u8a) {
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var len = u8a.reduce(function(acc, x) {
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return acc + x.length;
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}, 0);
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var out = new Uint8Array(len);
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var off = 0;
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u8a.forEach(function(u8) {
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out.set(u8, off);
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off += u8.length;
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});
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return out;
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}
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function popcnt(x) {
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x -= x >> 1 & 1431655765;
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x = (x & 858993459) + (x >> 2 & 858993459);
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return (x + (x >> 4) & 252645135) * 16843009 >>> 24;
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}
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function readDecimal128LE(buf, offset) {
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var exp = (buf[offset + 15] & 127) << 7 | buf[offset + 14] >> 1;
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var mantissa = buf[offset + 14] & 1;
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for (var j = offset + 13; j >= offset; --j)
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mantissa = mantissa * 256 + buf[j];
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return (buf[offset + 15] & 128 ? -mantissa : mantissa) * Math.pow(10, exp - 6176);
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}
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function parse_varint49(buf, ptr) {
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var l = ptr ? ptr[0] : 0;
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var usz = buf[l] & 127;
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varint:
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if (buf[l++] >= 128) {
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usz |= (buf[l] & 127) << 7;
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if (buf[l++] < 128)
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break varint;
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usz |= (buf[l] & 127) << 14;
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if (buf[l++] < 128)
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break varint;
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usz |= (buf[l] & 127) << 21;
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if (buf[l++] < 128)
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break varint;
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usz += (buf[l] & 127) * Math.pow(2, 28);
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++l;
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if (buf[l++] < 128)
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break varint;
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usz += (buf[l] & 127) * Math.pow(2, 35);
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++l;
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if (buf[l++] < 128)
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break varint;
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usz += (buf[l] & 127) * Math.pow(2, 42);
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++l;
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if (buf[l++] < 128)
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break varint;
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}
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if (ptr)
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ptr[0] = l;
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return usz;
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}
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function write_varint49(v) {
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var usz = new Uint8Array(7);
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usz[0] = v & 127;
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var L = 1;
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sz:
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if (v > 127) {
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usz[L - 1] |= 128;
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usz[L] = v >> 7 & 127;
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++L;
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if (v <= 16383)
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break sz;
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usz[L - 1] |= 128;
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usz[L] = v >> 14 & 127;
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++L;
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if (v <= 2097151)
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break sz;
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usz[L - 1] |= 128;
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usz[L] = v >> 21 & 127;
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++L;
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if (v <= 268435455)
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break sz;
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usz[L - 1] |= 128;
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usz[L] = v / 256 >>> 21 & 127;
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++L;
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if (v <= 34359738367)
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break sz;
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usz[L - 1] |= 128;
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usz[L] = v / 65536 >>> 21 & 127;
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++L;
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if (v <= 4398046511103)
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break sz;
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usz[L - 1] |= 128;
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usz[L] = v / 16777216 >>> 21 & 127;
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++L;
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}
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return usz.slice(0, L);
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}
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function varint_to_i32(buf) {
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var l = 0, i32 = buf[l] & 127;
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varint:
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if (buf[l++] >= 128) {
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i32 |= (buf[l] & 127) << 7;
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if (buf[l++] < 128)
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break varint;
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i32 |= (buf[l] & 127) << 14;
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if (buf[l++] < 128)
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break varint;
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i32 |= (buf[l] & 127) << 21;
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if (buf[l++] < 128)
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break varint;
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i32 |= (buf[l] & 127) << 28;
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}
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return i32;
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}
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function parse_shallow(buf) {
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var out = [], ptr = [0];
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while (ptr[0] < buf.length) {
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var off = ptr[0];
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var num = parse_varint49(buf, ptr);
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var type = num & 7;
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num = Math.floor(num / 8);
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var len = 0;
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var res;
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if (num == 0)
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break;
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switch (type) {
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case 0:
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{
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var l = ptr[0];
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while (buf[ptr[0]++] >= 128)
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;
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res = buf.slice(l, ptr[0]);
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}
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break;
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case 5:
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len = 4;
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res = buf.slice(ptr[0], ptr[0] + len);
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ptr[0] += len;
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break;
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case 1:
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len = 8;
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res = buf.slice(ptr[0], ptr[0] + len);
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ptr[0] += len;
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break;
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case 2:
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len = parse_varint49(buf, ptr);
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res = buf.slice(ptr[0], ptr[0] + len);
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ptr[0] += len;
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break;
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case 3:
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case 4:
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default:
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throw new Error("PB Type ".concat(type, " for Field ").concat(num, " at offset ").concat(off));
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}
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var v = { offset: off, data: res, type: type };
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if (out[num] == null)
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out[num] = [v];
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else
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out[num].push(v);
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}
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return out;
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}
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function mappa(data, cb) {
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if (!data)
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return [];
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return data.map(function(d) {
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var _a;
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try {
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return cb(d.data);
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} catch (e) {
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var m = (_a = e.message) == null ? void 0 : _a.match(/at offset (\d+)/);
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if (m)
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e.message = e.message.replace(/at offset (\d+)/, "at offset " + (+m[1] + d.offset));
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throw e;
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}
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});
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}
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function parse_iwa_file(buf) {
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var out = [], ptr = [0];
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while (ptr[0] < buf.length) {
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var len = parse_varint49(buf, ptr);
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var ai = parse_shallow(buf.slice(ptr[0], ptr[0] + len));
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ptr[0] += len;
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var res = {
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id: varint_to_i32(ai[1][0].data),
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messages: []
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};
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ai[2].forEach(function(b) {
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var mi = parse_shallow(b.data);
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var fl = varint_to_i32(mi[3][0].data);
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res.messages.push({
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meta: mi,
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data: buf.slice(ptr[0], ptr[0] + fl)
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});
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ptr[0] += fl;
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});
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out.push(res);
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}
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return out;
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}
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function parse_snappy_chunk(type, buf) {
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if (type != 0)
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throw new Error("Unexpected Snappy chunk type ".concat(type));
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var ptr = [0];
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var usz = parse_varint49(buf, ptr);
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var chunks = [];
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while (ptr[0] < buf.length) {
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var tag = buf[ptr[0]] & 3;
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if (tag == 0) {
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var len = buf[ptr[0]++] >> 2;
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if (len < 60)
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++len;
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else {
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var c = len - 59;
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len = buf[ptr[0]];
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if (c > 1)
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len |= buf[ptr[0] + 1] << 8;
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if (c > 2)
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len |= buf[ptr[0] + 2] << 16;
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if (c > 3)
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len |= buf[ptr[0] + 3] << 24;
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len >>>= 0;
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len++;
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ptr[0] += c;
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}
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chunks.push(buf.slice(ptr[0], ptr[0] + len));
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ptr[0] += len;
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continue;
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} else {
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var offset = 0, length = 0;
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if (tag == 1) {
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length = (buf[ptr[0]] >> 2 & 7) + 4;
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offset = (buf[ptr[0]++] & 224) << 3;
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offset |= buf[ptr[0]++];
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} else {
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length = (buf[ptr[0]++] >> 2) + 1;
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if (tag == 2) {
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offset = buf[ptr[0]] | buf[ptr[0] + 1] << 8;
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ptr[0] += 2;
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} else {
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offset = (buf[ptr[0]] | buf[ptr[0] + 1] << 8 | buf[ptr[0] + 2] << 16 | buf[ptr[0] + 3] << 24) >>> 0;
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ptr[0] += 4;
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}
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}
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chunks = [u8concat(chunks)];
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if (offset == 0)
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throw new Error("Invalid offset 0");
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if (offset > chunks[0].length)
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throw new Error("Invalid offset beyond length");
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if (length >= offset) {
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chunks.push(chunks[0].slice(-offset));
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length -= offset;
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while (length >= chunks[chunks.length - 1].length) {
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chunks.push(chunks[chunks.length - 1]);
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length -= chunks[chunks.length - 1].length;
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}
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}
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chunks.push(chunks[0].slice(-offset, -offset + length));
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}
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}
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var o = u8concat(chunks);
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if (o.length != usz)
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throw new Error("Unexpected length: ".concat(o.length, " != ").concat(usz));
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return o;
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}
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function decompress_iwa_file(buf) {
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var out = [];
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var l = 0;
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while (l < buf.length) {
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var t = buf[l++];
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var len = buf[l] | buf[l + 1] << 8 | buf[l + 2] << 16;
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l += 3;
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out.push(parse_snappy_chunk(t, buf.slice(l, l + len)));
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l += len;
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}
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if (l !== buf.length)
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throw new Error("data is not a valid framed stream!");
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return u8concat(out);
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}
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function compress_iwa_file(buf) {
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var out = [];
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var l = 0;
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while (l < buf.length) {
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var c = Math.min(buf.length - l, 268435455);
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var frame = new Uint8Array(4);
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out.push(frame);
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var usz = write_varint49(c);
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var L = usz.length;
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out.push(usz);
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if (c <= 60) {
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L++;
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out.push(new Uint8Array([c - 1 << 2]));
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} else if (c <= 256) {
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L += 2;
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out.push(new Uint8Array([240, c - 1 & 255]));
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} else if (c <= 65536) {
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L += 3;
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out.push(new Uint8Array([244, c - 1 & 255, c - 1 >> 8 & 255]));
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} else if (c <= 16777216) {
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L += 4;
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out.push(new Uint8Array([248, c - 1 & 255, c - 1 >> 8 & 255, c - 1 >> 16 & 255]));
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} else if (c <= 4294967296) {
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L += 5;
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out.push(new Uint8Array([252, c - 1 & 255, c - 1 >> 8 & 255, c - 1 >> 16 & 255, c - 1 >>> 24 & 255]));
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}
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out.push(buf.slice(l, l + c));
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L += c;
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frame[0] = 0;
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frame[1] = L & 255;
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frame[2] = L >> 8 & 255;
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frame[3] = L >> 16 & 255;
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l += c;
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}
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return u8concat(out);
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}
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function parse_old_storage(buf, sst, rsst, v) {
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var dv = u8_to_dataview(buf);
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var flags = dv.getUint32(4, true);
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var data_offset = (v > 1 ? 12 : 8) + popcnt(flags & (v > 1 ? 3470 : 398)) * 4;
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var ridx = -1, sidx = -1, ieee = NaN, dt = new Date(2001, 0, 1);
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if (flags & 512) {
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ridx = dv.getUint32(data_offset, true);
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data_offset += 4;
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}
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data_offset += popcnt(flags & (v > 1 ? 12288 : 4096)) * 4;
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if (flags & 16) {
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sidx = dv.getUint32(data_offset, true);
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data_offset += 4;
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}
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if (flags & 32) {
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ieee = dv.getFloat64(data_offset, true);
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data_offset += 8;
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}
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if (flags & 64) {
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dt.setTime(dt.getTime() + dv.getFloat64(data_offset, true) * 1e3);
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data_offset += 8;
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}
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var ret;
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switch (buf[2]) {
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case 0:
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break;
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case 2:
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ret = { t: "n", v: ieee };
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break;
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case 3:
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ret = { t: "s", v: sst[sidx] };
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break;
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case 5:
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ret = { t: "d", v: dt };
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break;
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case 6:
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ret = { t: "b", v: ieee > 0 };
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break;
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case 7:
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ret = { t: "n", v: ieee };
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break;
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case 8:
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ret = { t: "e", v: 0 };
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break;
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case 9:
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{
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if (ridx > -1)
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ret = { t: "s", v: rsst[ridx] };
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else if (sidx > -1)
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ret = { t: "s", v: sst[sidx] };
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else if (!isNaN(ieee))
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ret = { t: "n", v: ieee };
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else
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throw new Error("Unsupported cell type ".concat(buf.slice(0, 4)));
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}
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break;
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default:
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throw new Error("Unsupported cell type ".concat(buf.slice(0, 4)));
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}
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return ret;
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}
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function parse_storage(buf, sst, rsst) {
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var dv = u8_to_dataview(buf);
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var flags = dv.getUint32(8, true);
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var data_offset = 12;
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var ridx = -1, sidx = -1, d128 = NaN, ieee = NaN, dt = new Date(2001, 0, 1);
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if (flags & 1) {
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d128 = readDecimal128LE(buf, data_offset);
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data_offset += 16;
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}
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if (flags & 2) {
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ieee = dv.getFloat64(data_offset, true);
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data_offset += 8;
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}
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if (flags & 4) {
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dt.setTime(dt.getTime() + dv.getFloat64(data_offset, true) * 1e3);
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data_offset += 8;
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}
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if (flags & 8) {
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sidx = dv.getUint32(data_offset, true);
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data_offset += 4;
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}
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if (flags & 16) {
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ridx = dv.getUint32(data_offset, true);
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data_offset += 4;
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}
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var ret;
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switch (buf[1]) {
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case 0:
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break;
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case 2:
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ret = { t: "n", v: d128 };
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break;
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case 3:
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ret = { t: "s", v: sst[sidx] };
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break;
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case 5:
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ret = { t: "d", v: dt };
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break;
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case 6:
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ret = { t: "b", v: ieee > 0 };
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break;
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case 7:
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ret = { t: "n", v: ieee };
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break;
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case 8:
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ret = { t: "e", v: 0 };
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break;
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case 9:
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{
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if (ridx > -1)
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ret = { t: "s", v: rsst[ridx] };
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else
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throw new Error("Unsupported cell type ".concat(buf[1], " : ").concat(flags & 31, " : ").concat(buf.slice(0, 4)));
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}
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break;
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case 10:
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ret = { t: "n", v: d128 };
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break;
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default:
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throw new Error("Unsupported cell type ".concat(buf[1], " : ").concat(flags & 31, " : ").concat(buf.slice(0, 4)));
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}
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return ret;
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}
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function parse_cell_storage(buf, sst, rsst) {
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switch (buf[0]) {
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case 0:
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case 1:
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case 2:
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case 3:
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return parse_old_storage(buf, sst, rsst, buf[0]);
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case 5:
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return parse_storage(buf, sst, rsst);
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default:
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throw new Error("Unsupported payload version ".concat(buf[0]));
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}
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}
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function parse_TSP_Reference(buf) {
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var pb = parse_shallow(buf);
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return parse_varint49(pb[1][0].data);
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}
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function parse_TST_TableDataList(M, root) {
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var pb = parse_shallow(root.data);
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var type = varint_to_i32(pb[1][0].data);
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var entries = pb[3];
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var data = [];
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(entries || []).forEach(function(entry) {
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var le = parse_shallow(entry.data);
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var key = varint_to_i32(le[1][0].data) >>> 0;
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switch (type) {
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case 1:
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data[key] = u8str(le[3][0].data);
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break;
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case 8:
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{
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var rt = M[parse_TSP_Reference(le[9][0].data)][0];
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var rtp = parse_shallow(rt.data);
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var rtpref = M[parse_TSP_Reference(rtp[1][0].data)][0];
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var mtype = varint_to_i32(rtpref.meta[1][0].data);
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if (mtype != 2001)
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throw new Error("2000 unexpected reference to ".concat(mtype));
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var tswpsa = parse_shallow(rtpref.data);
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data[key] = tswpsa[3].map(function(x) {
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return u8str(x.data);
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}).join("");
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}
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break;
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}
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});
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return data;
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}
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function parse_TST_TileRowInfo(u8, type) {
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var _a, _b, _c, _d, _e, _f, _g, _h, _i, _j, _k, _l, _m, _n;
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|
var pb = parse_shallow(u8);
|
|
var R = varint_to_i32(pb[1][0].data) >>> 0;
|
|
var cnt = varint_to_i32(pb[2][0].data) >>> 0;
|
|
var wide_offsets = ((_b = (_a = pb[8]) == null ? void 0 : _a[0]) == null ? void 0 : _b.data) && varint_to_i32(pb[8][0].data) > 0 || false;
|
|
var used_storage_u8, used_storage;
|
|
if (((_d = (_c = pb[7]) == null ? void 0 : _c[0]) == null ? void 0 : _d.data) && type != 0) {
|
|
used_storage_u8 = (_f = (_e = pb[7]) == null ? void 0 : _e[0]) == null ? void 0 : _f.data;
|
|
used_storage = (_h = (_g = pb[6]) == null ? void 0 : _g[0]) == null ? void 0 : _h.data;
|
|
} else if (((_j = (_i = pb[4]) == null ? void 0 : _i[0]) == null ? void 0 : _j.data) && type != 1) {
|
|
used_storage_u8 = (_l = (_k = pb[4]) == null ? void 0 : _k[0]) == null ? void 0 : _l.data;
|
|
used_storage = (_n = (_m = pb[3]) == null ? void 0 : _m[0]) == null ? void 0 : _n.data;
|
|
} else
|
|
throw "NUMBERS Tile missing ".concat(type, " cell storage");
|
|
var width = wide_offsets ? 4 : 1;
|
|
var used_storage_offsets = u8_to_dataview(used_storage_u8);
|
|
var offsets = [];
|
|
for (var C = 0; C < used_storage_u8.length / 2; ++C) {
|
|
var off = used_storage_offsets.getUint16(C * 2, true);
|
|
if (off < 65535)
|
|
offsets.push([C, off]);
|
|
}
|
|
if (offsets.length != cnt)
|
|
throw "Expected ".concat(cnt, " cells, found ").concat(offsets.length);
|
|
var cells = [];
|
|
for (C = 0; C < offsets.length - 1; ++C)
|
|
cells[offsets[C][0]] = used_storage.subarray(offsets[C][1] * width, offsets[C + 1][1] * width);
|
|
cells[offsets[offsets.length - 1][0]] = used_storage.subarray(offsets[offsets.length - 1][1] * width);
|
|
return { R: R, cells: cells };
|
|
}
|
|
function parse_TST_Tile(M, root) {
|
|
var _a;
|
|
var pb = parse_shallow(root.data);
|
|
var storage = ((_a = pb == null ? void 0 : pb[7]) == null ? void 0 : _a[0]) ? varint_to_i32(pb[7][0].data) >>> 0 > 0 ? 1 : 0 : -1;
|
|
var ri = mappa(pb[5], function(u8) {
|
|
return parse_TST_TileRowInfo(u8, storage);
|
|
});
|
|
return {
|
|
nrows: varint_to_i32(pb[4][0].data) >>> 0,
|
|
data: ri.reduce(function(acc, x) {
|
|
if (!acc[x.R])
|
|
acc[x.R] = [];
|
|
x.cells.forEach(function(cell, C) {
|
|
if (acc[x.R][C])
|
|
throw new Error("Duplicate cell r=".concat(x.R, " c=").concat(C));
|
|
acc[x.R][C] = cell;
|
|
});
|
|
return acc;
|
|
}, [])
|
|
};
|
|
}
|
|
function parse_TST_TableModelArchive(M, root, ws) {
|
|
var _a;
|
|
var pb = parse_shallow(root.data);
|
|
var range = { s: { r: 0, c: 0 }, e: { r: 0, c: 0 } };
|
|
range.e.r = (varint_to_i32(pb[6][0].data) >>> 0) - 1;
|
|
if (range.e.r < 0)
|
|
throw new Error("Invalid row varint ".concat(pb[6][0].data));
|
|
range.e.c = (varint_to_i32(pb[7][0].data) >>> 0) - 1;
|
|
if (range.e.c < 0)
|
|
throw new Error("Invalid col varint ".concat(pb[7][0].data));
|
|
ws["!ref"] = encode_range(range);
|
|
var store = parse_shallow(pb[4][0].data);
|
|
var sst = parse_TST_TableDataList(M, M[parse_TSP_Reference(store[4][0].data)][0]);
|
|
var rsst = ((_a = store[17]) == null ? void 0 : _a[0]) ? parse_TST_TableDataList(M, M[parse_TSP_Reference(store[17][0].data)][0]) : [];
|
|
var tile = parse_shallow(store[3][0].data);
|
|
var _R = 0;
|
|
tile[1].forEach(function(t) {
|
|
var tl = parse_shallow(t.data);
|
|
var ref = M[parse_TSP_Reference(tl[2][0].data)][0];
|
|
var mtype = varint_to_i32(ref.meta[1][0].data);
|
|
if (mtype != 6002)
|
|
throw new Error("6001 unexpected reference to ".concat(mtype));
|
|
var _tile = parse_TST_Tile(M, ref);
|
|
_tile.data.forEach(function(row, R) {
|
|
row.forEach(function(buf, C) {
|
|
var addr = encode_cell({ r: _R + R, c: C });
|
|
var res = parse_cell_storage(buf, sst, rsst);
|
|
if (res)
|
|
ws[addr] = res;
|
|
});
|
|
});
|
|
_R += _tile.nrows;
|
|
});
|
|
}
|
|
function parse_TST_TableInfoArchive(M, root) {
|
|
var pb = parse_shallow(root.data);
|
|
var out = { "!ref": "A1" };
|
|
var tableref = M[parse_TSP_Reference(pb[2][0].data)];
|
|
var mtype = varint_to_i32(tableref[0].meta[1][0].data);
|
|
if (mtype != 6001)
|
|
throw new Error("6000 unexpected reference to ".concat(mtype));
|
|
parse_TST_TableModelArchive(M, tableref[0], out);
|
|
return out;
|
|
}
|
|
function parse_TN_SheetArchive(M, root) {
|
|
var _a;
|
|
var pb = parse_shallow(root.data);
|
|
var out = {
|
|
name: ((_a = pb[1]) == null ? void 0 : _a[0]) ? u8str(pb[1][0].data) : "",
|
|
sheets: []
|
|
};
|
|
var shapeoffs = mappa(pb[2], parse_TSP_Reference);
|
|
shapeoffs.forEach(function(off) {
|
|
M[off].forEach(function(m) {
|
|
var mtype = varint_to_i32(m.meta[1][0].data);
|
|
if (mtype == 6e3)
|
|
out.sheets.push(parse_TST_TableInfoArchive(M, m));
|
|
});
|
|
});
|
|
return out;
|
|
}
|
|
function parse_TN_DocumentArchive(M, root) {
|
|
var out = book_new();
|
|
var pb = parse_shallow(root.data);
|
|
var sheetoffs = mappa(pb[1], parse_TSP_Reference);
|
|
sheetoffs.forEach(function(off) {
|
|
M[off].forEach(function(m) {
|
|
var mtype = varint_to_i32(m.meta[1][0].data);
|
|
if (mtype == 2) {
|
|
var root2 = parse_TN_SheetArchive(M, m);
|
|
root2.sheets.forEach(function(sheet, idx) {
|
|
book_append_sheet(out, sheet, idx == 0 ? root2.name : root2.name + "_" + idx, true);
|
|
});
|
|
}
|
|
});
|
|
});
|
|
if (out.SheetNames.length == 0)
|
|
throw new Error("Empty NUMBERS file");
|
|
return out;
|
|
}
|
|
function parse_numbers_iwa(cfb) {
|
|
var _a, _b, _c, _d;
|
|
var out = {}, indices = [];
|
|
cfb.FullPaths.forEach(function(p) {
|
|
if (p.match(/\.iwpv2/))
|
|
throw new Error("Unsupported password protection");
|
|
});
|
|
cfb.FileIndex.forEach(function(s) {
|
|
if (!s.name.match(/\.iwa$/))
|
|
return;
|
|
var o;
|
|
try {
|
|
o = decompress_iwa_file(s.content);
|
|
} catch (e) {
|
|
return console.log("?? " + s.content.length + " " + (e.message || e));
|
|
}
|
|
var packets;
|
|
try {
|
|
packets = parse_iwa_file(o);
|
|
} catch (e) {
|
|
return console.log("## " + (e.message || e));
|
|
}
|
|
packets.forEach(function(packet) {
|
|
out[packet.id] = packet.messages;
|
|
indices.push(packet.id);
|
|
});
|
|
});
|
|
if (!indices.length)
|
|
throw new Error("File has no messages");
|
|
var docroot = ((_d = (_c = (_b = (_a = out == null ? void 0 : out[1]) == null ? void 0 : _a[0]) == null ? void 0 : _b.meta) == null ? void 0 : _c[1]) == null ? void 0 : _d[0].data) && varint_to_i32(out[1][0].meta[1][0].data) == 1 && out[1][0];
|
|
if (!docroot)
|
|
indices.forEach(function(idx) {
|
|
out[idx].forEach(function(iwam) {
|
|
var mtype = varint_to_i32(iwam.meta[1][0].data) >>> 0;
|
|
if (mtype == 1) {
|
|
if (!docroot)
|
|
docroot = iwam;
|
|
else
|
|
throw new Error("Document has multiple roots");
|
|
}
|
|
});
|
|
});
|
|
if (!docroot)
|
|
throw new Error("Cannot find Document root");
|
|
return parse_TN_DocumentArchive(out, docroot);
|
|
}
|