sheetjs/modules/83_numbers.js

/*! sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */
var u8_to_dataview = function(array) {
  return new DataView(array.buffer, array.byteOffset, array.byteLength);
};
var u8str = function(u8) {
  return typeof TextDecoder != "undefined" ? new TextDecoder().decode(u8) : utf8read(a2s(u8));
};
var u8concat = function(u8a) {
  var len = u8a.reduce(function(acc, x) {
    return acc + x.length;
  }, 0);
  var out = new Uint8Array(len);
  var off = 0;
  u8a.forEach(function(u8) {
    out.set(u8, off);
    off += u8.length;
  });
  return out;
};
var popcnt = function(x) {
  x -= x >> 1 & 1431655765;
  x = (x & 858993459) + (x >> 2 & 858993459);
  return (x + (x >> 4) & 252645135) * 16843009 >>> 24;
};
var readDecimal128LE = function(buf, offset) {
  var exp = (buf[offset + 15] & 127) << 7 | buf[offset + 14] >> 1;
  var mantissa = buf[offset + 14] & 1;
  for (var j = offset + 13; j >= offset; --j)
    mantissa = mantissa * 256 + buf[j];
  return (buf[offset + 15] & 128 ? -mantissa : mantissa) * Math.pow(10, exp - 6176);
};
function parse_varint49(buf, ptr) {
  var l = ptr ? ptr[0] : 0;
  var usz = buf[l] & 127;
  varint:
    if (buf[l++] >= 128) {
      usz |= (buf[l] & 127) << 7;
      if (buf[l++] < 128)
        break varint;
      usz |= (buf[l] & 127) << 14;
      if (buf[l++] < 128)
        break varint;
      usz |= (buf[l] & 127) << 21;
      if (buf[l++] < 128)
        break varint;
      usz += (buf[l] & 127) * Math.pow(2, 28);
      ++l;
      if (buf[l++] < 128)
        break varint;
      usz += (buf[l] & 127) * Math.pow(2, 35);
      ++l;
      if (buf[l++] < 128)
        break varint;
      usz += (buf[l] & 127) * Math.pow(2, 42);
      ++l;
      if (buf[l++] < 128)
        break varint;
    }
  if (ptr)
    ptr[0] = l;
  return usz;
}
function varint_to_i32(buf) {
  var l = 0, i32 = buf[l] & 127;
  varint:
    if (buf[l++] >= 128) {
      i32 |= (buf[l] & 127) << 7;
      if (buf[l++] < 128)
        break varint;
      i32 |= (buf[l] & 127) << 14;
      if (buf[l++] < 128)
        break varint;
      i32 |= (buf[l] & 127) << 21;
      if (buf[l++] < 128)
        break varint;
      i32 |= (buf[l] & 127) << 28;
    }
  return i32;
}
function parse_shallow(buf) {
  var out = [], ptr = [0];
  while (ptr[0] < buf.length) {
    var off = ptr[0];
    var num = parse_varint49(buf, ptr);
    var type = num & 7;
    num = Math.floor(num / 8);
    var len = 0;
    var res;
    if (num == 0)
      break;
    switch (type) {
      case 0:
        {
          var l = ptr[0];
          while (buf[ptr[0]++] >= 128)
            ;
          res = buf.slice(l, ptr[0]);
        }
        break;
      case 5:
        len = 4;
        res = buf.slice(ptr[0], ptr[0] + len);
        ptr[0] += len;
        break;
      case 1:
        len = 8;
        res = buf.slice(ptr[0], ptr[0] + len);
        ptr[0] += len;
        break;
      case 2:
        len = parse_varint49(buf, ptr);
        res = buf.slice(ptr[0], ptr[0] + len);
        ptr[0] += len;
        break;
      case 3:
      case 4:
      default:
        throw new Error("PB Type ".concat(type, " for Field ").concat(num, " at offset ").concat(off));
    }
    var v = { offset: off, data: res, type: type };
    if (out[num] == null)
      out[num] = [v];
    else
      out[num].push(v);
  }
  return out;
}
function mappa(data, cb) {
  if (!data)
    return [];
  return data.map(function(d) {
    var _a;
    try {
      return cb(d.data);
    } catch (e) {
      var m = (_a = e.message) == null ? void 0 : _a.match(/at offset (\d+)/);
      if (m)
        e.message = e.message.replace(/at offset (\d+)/, "at offset " + (+m[1] + d.offset));
      throw e;
    }
  });
}
function parse_iwa_file(buf) {
  var out = [], ptr = [0];
  while (ptr[0] < buf.length) {
    var len = parse_varint49(buf, ptr);
    var ai = parse_shallow(buf.slice(ptr[0], ptr[0] + len));
    ptr[0] += len;
    var res = {
      id: varint_to_i32(ai[1][0].data),
      messages: []
    };
    ai[2].forEach(function(b) {
      var mi = parse_shallow(b.data);
      var fl = varint_to_i32(mi[3][0].data);
      res.messages.push({
        meta: mi,
        data: buf.slice(ptr[0], ptr[0] + fl)
      });
      ptr[0] += fl;
    });
    out.push(res);
  }
  return out;
}
function parse_snappy_chunk(type, buf) {
  if (type != 0)
    throw new Error("Unexpected Snappy chunk type ".concat(type));
  var ptr = [0];
  var usz = parse_varint49(buf, ptr);
  var chunks = [];
  while (ptr[0] < buf.length) {
    var tag = buf[ptr[0]] & 3;
    if (tag == 0) {
      var len = buf[ptr[0]++] >> 2;
      if (len < 60)
        ++len;
      else {
        var c = len - 59;
        len = buf[ptr[0]];
        if (c > 1)
          len |= buf[ptr[0] + 1] << 8;
        if (c > 2)
          len |= buf[ptr[0] + 2] << 16;
        if (c > 3)
          len |= buf[ptr[0] + 3] << 24;
        len >>>= 0;
        len++;
        ptr[0] += c;
      }
      chunks.push(buf.slice(ptr[0], ptr[0] + len));
      ptr[0] += len;
      continue;
    } else {
      var offset = 0, length = 0;
      if (tag == 1) {
        length = (buf[ptr[0]] >> 2 & 7) + 4;
        offset = (buf[ptr[0]++] & 224) << 3;
        offset |= buf[ptr[0]++];
      } else {
        length = (buf[ptr[0]++] >> 2) + 1;
        if (tag == 2) {
          offset = buf[ptr[0]] | buf[ptr[0] + 1] << 8;
          ptr[0] += 2;
        } else {
          offset = (buf[ptr[0]] | buf[ptr[0] + 1] << 8 | buf[ptr[0] + 2] << 16 | buf[ptr[0] + 3] << 24) >>> 0;
          ptr[0] += 4;
        }
      }
      chunks = [u8concat(chunks)];
      if (offset == 0)
        throw new Error("Invalid offset 0");
      if (offset > chunks[0].length)
        throw new Error("Invalid offset beyond length");
      if (length >= offset) {
        chunks.push(chunks[0].slice(-offset));
        length -= offset;
        while (length >= chunks[chunks.length - 1].length) {
          chunks.push(chunks[chunks.length - 1]);
          length -= chunks[chunks.length - 1].length;
        }
      }
      chunks.push(chunks[0].slice(-offset, -offset + length));
    }
  }
  var o = u8concat(chunks);
  if (o.length != usz)
    throw new Error("Unexpected length: ".concat(o.length, " != ").concat(usz));
  return o;
}
function deframe(buf) {
  var out = [];
  var l = 0;
  while (l < buf.length) {
    var t = buf[l++];
    var len = buf[l] | buf[l + 1] << 8 | buf[l + 2] << 16;
    l += 3;
    out.push(parse_snappy_chunk(t, buf.slice(l, l + len)));
    l += len;
  }
  if (l !== buf.length)
    throw new Error("data is not a valid framed stream!");
  return u8concat(out);
}
function parse_old_storage(buf, sst, rsst) {
  var dv = u8_to_dataview(buf);
  var ctype = buf[buf[0] == 4 ? 1 : 2];
  var flags = dv.getUint32(4, true);
  var data_offset = 12 + popcnt(flags & 3470) * 4;
  var ridx = -1, sidx = -1, ieee = NaN, dt = new Date(2001, 0, 1);
  if (flags & 512) {
    ridx = dv.getUint32(data_offset, true);
    data_offset += 4;
  }
  data_offset += popcnt(flags & 12288) * 4;
  if (flags & 16) {
    sidx = dv.getUint32(data_offset, true);
    data_offset += 4;
  }
  if (flags & 32) {
    ieee = dv.getFloat64(data_offset, true);
    data_offset += 8;
  }
  if (flags & 64) {
    dt.setTime(dt.getTime() + dv.getFloat64(data_offset, true) * 1e3);
    data_offset += 8;
  }
  var ret;
  switch (ctype) {
    case 0:
      break;
    case 2:
      ret = { t: "n", v: ieee };
      break;
    case 3:
      ret = { t: "s", v: sst[sidx] };
      break;
    case 5:
      ret = { t: "d", v: dt };
      break;
    case 6:
      ret = { t: "b", v: ieee > 0 };
      break;
    case 7:
      ret = { t: "n", v: ieee };
      break;
    case 8:
      ret = { t: "e", v: 0 };
      break;
    case 9:
      {
        if (ridx > -1)
          ret = { t: "s", v: rsst[ridx] };
        else if (sidx > -1)
          ret = { t: "s", v: sst[sidx] };
        else if (!isNaN(ieee))
          ret = { t: "n", v: ieee };
        else
          throw new Error("Unsupported cell type ".concat(buf.slice(0, 4)));
      }
      break;
    default:
      throw new Error("Unsupported cell type ".concat(buf.slice(0, 4)));
  }
  return ret;
}
function parse_storage(buf, sst, rsst) {
  var dv = u8_to_dataview(buf);
  var ctype = buf[1];
  var flags = dv.getUint32(8, true);
  var data_offset = 12;
  var ridx = -1, sidx = -1, d128 = NaN, ieee = NaN, dt = new Date(2001, 0, 1);
  if (flags & 1) {
    d128 = readDecimal128LE(buf, data_offset);
    data_offset += 16;
  }
  if (flags & 2) {
    ieee = dv.getFloat64(data_offset, true);
    data_offset += 8;
  }
  if (flags & 4) {
    dt.setTime(dt.getTime() + dv.getFloat64(data_offset, true) * 1e3);
    data_offset += 8;
  }
  if (flags & 8) {
    sidx = dv.getUint32(data_offset, true);
    data_offset += 4;
  }
  if (flags & 16) {
    ridx = dv.getUint32(data_offset, true);
    data_offset += 4;
  }
  var ret;
  switch (ctype) {
    case 0:
      break;
    case 2:
      ret = { t: "n", v: d128 };
      break;
    case 3:
      ret = { t: "s", v: sst[sidx] };
      break;
    case 5:
      ret = { t: "d", v: dt };
      break;
    case 6:
      ret = { t: "b", v: ieee > 0 };
      break;
    case 7:
      ret = { t: "n", v: ieee };
      break;
    case 8:
      ret = { t: "e", v: 0 };
      break;
    case 9:
      {
        if (ridx > -1)
          ret = { t: "s", v: rsst[ridx] };
        else
          throw new Error("Unsupported cell type ".concat(ctype, " : ").concat(flags & 31, " : ").concat(buf.slice(0, 4)));
      }
      break;
    case 10:
      ret = { t: "n", v: d128 };
      break;
    default:
      throw new Error("Unsupported cell type ".concat(ctype, " : ").concat(flags & 31, " : ").concat(buf.slice(0, 4)));
  }
  return ret;
}
function parse_cell_storage(buf, sst, rsst) {
  switch (buf[0]) {
    case 3:
    case 4:
      return parse_old_storage(buf, sst, rsst);
    case 5:
      return parse_storage(buf, sst, rsst);
    default:
      throw new Error("Unsupported payload version ".concat(buf[0]));
  }
}
function parse_TSP_Reference(buf) {
  var pb = parse_shallow(buf);
  return parse_varint49(pb[1][0].data);
}
function parse_TST_TableDataList(M, root) {
  var pb = parse_shallow(root.data);
  var type = varint_to_i32(pb[1][0].data);
  var entries = pb[3];
  var data = [];
  (entries || []).forEach(function(entry) {
    var le = parse_shallow(entry.data);
    var key = varint_to_i32(le[1][0].data) >>> 0;
    switch (type) {
      case 1:
        data[key] = u8str(le[3][0].data);
        break;
      case 8:
        {
          var rt = M[parse_TSP_Reference(le[9][0].data)][0];
          var rtp = parse_shallow(rt.data);
          var rtpref = M[parse_TSP_Reference(rtp[1][0].data)][0];
          var mtype = varint_to_i32(rtpref.meta[1][0].data);
          if (mtype != 2001)
            throw new Error("2000 unexpected reference to ".concat(mtype));
          var tswpsa = parse_shallow(rtpref.data);
          data[key] = tswpsa[3].map(function(x) {
            return u8str(x.data);
          }).join("");
        }
        break;
    }
  });
  return data;
}
function parse_TST_TileRowInfo(u8) {
  var _a, _b, _c, _d, _e, _f, _g, _h, _i, _j;
  var pb = parse_shallow(u8);
  var R = varint_to_i32(pb[1][0].data) >>> 0;
  var pre_bnc = (_b = (_a = pb[3]) == null ? void 0 : _a[0]) == null ? void 0 : _b.data;
  var pre_bnc_offsets = ((_d = (_c = pb[4]) == null ? void 0 : _c[0]) == null ? void 0 : _d.data) && u8_to_dataview(pb[4][0].data);
  var storage = (_f = (_e = pb[6]) == null ? void 0 : _e[0]) == null ? void 0 : _f.data;
  var storage_offsets = ((_h = (_g = pb[7]) == null ? void 0 : _g[0]) == null ? void 0 : _h.data) && u8_to_dataview(pb[7][0].data);
  var wide_offsets = ((_j = (_i = pb[8]) == null ? void 0 : _i[0]) == null ? void 0 : _j.data) && varint_to_i32(pb[8][0].data) > 0 || false;
  var width = wide_offsets ? 4 : 1;
  var cells = [];
  var off = 0;
  for (var C = 0; C < pre_bnc_offsets.byteLength / 2; ++C) {
    if (storage && storage_offsets) {
      off = storage_offsets.getUint16(C * 2, true) * width;
      if (off < storage.length) {
        cells[C] = storage.subarray(off, storage_offsets.getUint16(C * 2 + 2, true) * width);
        continue;
      }
    }
    if (pre_bnc && pre_bnc_offsets) {
      off = pre_bnc_offsets.getUint16(C * 2, true) * width;
      if (off < pre_bnc.length)
        cells[C] = pre_bnc.subarray(off, pre_bnc_offsets.getUint16(C * 2 + 2, true) * width);
    }
  }
  return { R: R, cells: cells };
}
function parse_TST_Tile(M, root) {
  var pb = parse_shallow(root.data);
  var ri = mappa(pb[5], parse_TST_TileRowInfo);
  return 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 tiles = [];
      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));
        tiles.push({ id: varint_to_i32(tl[1][0].data), ref: parse_TST_Tile(M, ref) });
      });
      tiles.forEach(function(tile2) {
        tile2.ref.forEach(function(row, R) {
          row.forEach(function(buf, C) {
            var addr = encode_cell({ r: R, c: C });
            var res = parse_cell_storage(buf, sst, rsst);
            if (res)
              ws[addr] = res;
          });
        });
      });
    }
  }
}
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) {
          book_append_sheet(out, sheet, root2.name);
        });
      }
    });
  });
  if (out.SheetNames.length == 0)
    throw new Error("Empty NUMBERS file");
  return out;
}
function parse_numbers_iwa(cfb) {
  var out = [];
  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 = deframe(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;
    });
  });
  if (!out.length)
    throw new Error("File has no messages");
  var docroot;
  out.forEach(function(iwams) {
    iwams.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);
}