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Excel supports columns from 1 to 16384');\r\n    }\r\n    if (this._l2nFill < 1 && level >= 1) {\r\n      while (n <= 26) {\r\n        c = this._dictionary[n - 1];\r\n        this._n2l[n] = c;\r\n        this._l2n[c] = n;\r\n        n++;\r\n      }\r\n      this._l2nFill = 1;\r\n    }\r\n    if (this._l2nFill < 2 && level >= 2) {\r\n      n = 27;\r\n      while (n <= 26 + (26 * 26)) {\r\n        v = n - (26 + 1);\r\n        l1 = v % 26;\r\n        l2 = Math.floor(v / 26);\r\n        c = this._dictionary[l2] + this._dictionary[l1];\r\n        this._n2l[n] = c;\r\n        this._l2n[c] = n;\r\n        n++;\r\n      }\r\n      this._l2nFill = 2;\r\n    }\r\n    if (this._l2nFill < 3 && level >= 3) {\r\n      n = 26 + (26 * 26) + 1;\r\n      while (n <= 16384) {\r\n        v = n - ((26 * 26) + 26 + 1);\r\n        l1 = v % 26;\r\n        l2 = Math.floor(v / 26) % 26;\r\n        l3 = Math.floor(v / (26 * 26));\r\n        c = this._dictionary[l3] + this._dictionary[l2] + this._dictionary[l1];\r\n        this._n2l[n] = c;\r\n        this._l2n[c] = n;\r\n        n++;\r\n      }\r\n      this._l2nFill = 3;\r\n    }\r\n  },\r\n  l2n(l) {\r\n    if (!this._l2n[l]) {\r\n      this._fill(l.length);\r\n    }\r\n    if (!this._l2n[l]) {\r\n      throw new Error(`Out of bounds. Invalid column letter: ${l}`);\r\n    }\r\n    return this._l2n[l];\r\n  },\r\n  n2l(n) {\r\n    if (n < 1 || n > 16384) {\r\n      throw new Error(`${n} is out of bounds. Excel supports columns from 1 to 16384`);\r\n    }\r\n    if (!this._n2l[n]) {\r\n      this._fill(this._level(n));\r\n    }\r\n    return this._n2l[n];\r\n  },\r\n\r\n  // =========================================================================\r\n  // Address processing\r\n  _hash: {},\r\n\r\n  // check if value looks like an address\r\n  validateAddress(value) {\r\n    if (!addressRegex.test(value)) {\r\n      throw new Error(`Invalid Address: ${value}`);\r\n    }\r\n    return true;\r\n  },\r\n\r\n  // convert address string into structure\r\n  decodeAddress(value) {\r\n    const addr = value.length < 5 && this._hash[value];\r\n    if (addr) {\r\n      return addr;\r\n    }\r\n    let hasCol = false;\r\n    let col = '';\r\n    let colNumber = 0;\r\n    let hasRow = false;\r\n    let row = '';\r\n    let rowNumber = 0;\r\n    for (let i = 0, char; i < value.length; i++) {\r\n      char = value.charCodeAt(i);\r\n      // col should before row\r\n      if (!hasRow && char >= 65 && char <= 90) {\r\n        // 65 = 'A'.charCodeAt(0)\r\n        // 90 = 'Z'.charCodeAt(0)\r\n        hasCol = true;\r\n        col += value[i];\r\n        // colNumber starts from 1\r\n        colNumber = (colNumber * 26) + char - 64;\r\n      } else if (char >= 48 && char <= 57) {\r\n        // 48 = '0'.charCodeAt(0)\r\n        // 57 = '9'.charCodeAt(0)\r\n        hasRow = true;\r\n        row += value[i];\r\n        // rowNumber starts from 0\r\n        rowNumber = (rowNumber * 10) + char - 48;\r\n      } else if (hasRow && hasCol && char !== 36) {\r\n        // 36 = '$'.charCodeAt(0)\r\n        break;\r\n      }\r\n    }\r\n    if (!hasCol) {\r\n      colNumber = undefined;\r\n    } else if (colNumber > 16384) {\r\n      throw new Error(`Out of bounds. Invalid column letter: ${col}`);\r\n    }\r\n    if (!hasRow) {\r\n      rowNumber = undefined;\r\n    }\r\n\r\n    // in case $row$col\r\n    value = col + row;\r\n\r\n    const address = {\r\n      address: value,\r\n      col: colNumber,\r\n      row: rowNumber,\r\n      $col$row: `$${col}$${row}`,\r\n    };\r\n\r\n    // mem fix - cache only the tl 100x100 square\r\n    if (colNumber <= 100 && rowNumber <= 100) {\r\n      this._hash[value] = address;\r\n      this._hash[address.$col$row] = address;\r\n    }\r\n\r\n    return address;\r\n  },\r\n\r\n  // convert r,c into structure (if only 1 arg, assume r is address string)\r\n  getAddress(r, c) {\r\n    if (c) {\r\n      const address = this.n2l(c) + r;\r\n      return this.decodeAddress(address);\r\n    }\r\n    return this.decodeAddress(r);\r\n  },\r\n\r\n  // convert [address], [tl:br] into address structures\r\n  decode(value) {\r\n    const parts = value.split(':');\r\n    if (parts.length === 2) {\r\n      const tl = this.decodeAddress(parts[0]);\r\n      const br = this.decodeAddress(parts[1]);\r\n      const result = {\r\n        top: Math.min(tl.row, br.row),\r\n        left: Math.min(tl.col, br.col),\r\n        bottom: Math.max(tl.row, br.row),\r\n        right: Math.max(tl.col, br.col),\r\n      };\r\n      // reconstruct tl, br and dimensions\r\n      result.tl = this.n2l(result.left) + result.top;\r\n      result.br = this.n2l(result.right) + result.bottom;\r\n      result.dimensions = `${result.tl}:${result.br}`;\r\n      return result;\r\n    }\r\n    return this.decodeAddress(value);\r\n  },\r\n\r\n  // convert [sheetName!][$]col[$]row[[$]col[$]row] into address or range structures\r\n  decodeEx(value) {\r\n    const groups = value.match(/(?:(?:(?:'((?:[^']|'')*)')|([^'^ !]*))!)?(.*)/);\r\n\r\n    const sheetName = groups[1] || groups[2]; // Qouted and unqouted groups\r\n    const reference = groups[3]; // Remaining address\r\n\r\n    const parts = reference.split(':');\r\n    if (parts.length > 1) {\r\n      let tl = this.decodeAddress(parts[0]);\r\n      let br = this.decodeAddress(parts[1]);\r\n      const top = Math.min(tl.row, br.row);\r\n      const left = Math.min(tl.col, br.col);\r\n      const bottom = Math.max(tl.row, br.row);\r\n      const right = Math.max(tl.col, br.col);\r\n\r\n      tl = this.n2l(left) + top;\r\n      br = this.n2l(right) + bottom;\r\n\r\n      return {\r\n        top,\r\n        left,\r\n        bottom,\r\n        right,\r\n        sheetName,\r\n        tl: {address: tl, col: left, row: top, $col$row: `$${this.n2l(left)}$${top}`, sheetName},\r\n        br: {\r\n          address: br,\r\n          col: right,\r\n          row: bottom,\r\n          $col$row: `$${this.n2l(right)}$${bottom}`,\r\n          sheetName,\r\n        },\r\n        dimensions: `${tl}:${br}`,\r\n      };\r\n    }\r\n    if (reference.startsWith('#')) {\r\n      return sheetName ? {sheetName, error: reference} : {error: reference};\r\n    }\r\n\r\n    const address = this.decodeAddress(reference);\r\n    return sheetName ? {sheetName, ...address} : address;\r\n  },\r\n\r\n  // convert row,col into address string\r\n  encodeAddress(row, col) {\r\n    return colCache.n2l(col) + row;\r\n  },\r\n\r\n  // convert row,col into string address or t,l,b,r into range\r\n  encode() {\r\n    switch (arguments.length) {\r\n      case 2:\r\n        return colCache.encodeAddress(arguments[0], arguments[1]);\r\n      case 4:\r\n        return `${colCache.encodeAddress(arguments[0], arguments[1])}:${colCache.encodeAddress(\r\n          arguments[2],\r\n          arguments[3]\r\n        )}`;\r\n      default:\r\n        throw new Error('Can only encode with 2 or 4 arguments');\r\n    }\r\n  },\r\n\r\n  // return true if address is contained within range\r\n  inRange(range, address) {\r\n    const [left, top, , right, bottom] = range;\r\n    const [col, row] = address;\r\n    return col >= left && col <= right && row >= top && row <= bottom;\r\n  },\r\n};\r\n\r\nmodule.exports = colCache;\r\n"],"file":"col-cache.js"}
Anon7 - 2022
AnonSec Team