react-microspreadsheet/lib/recalc.js

A pluggable spreadsheet component.

// Generated by CoffeeScript 1.8.0
var Mori, calculated, flush, getCalcResult, getCalcResultAt, getMatrixValues, parseStr, parser, store, utils;

Mori = require('mori');

utils = require('./utils');

store = require('./cells-store');

calculated = {};

flush = function() {
  return calculated = {};
};

module.exports.getUtils = function() {
  return {
    getCalcResultAt: function() {
      return getCalcResultAt.apply(this, arguments);
    },
    getMatrixValues: function() {
      return getMatrixValues.apply(this, arguments);
    }
  };
};

module.exports.recalc = function() {
  var addr, calcRes, i, j, raw, _i, _j, _ref, _ref1;
  flush();
  for (i = _i = 0, _ref = Mori.count(store.cells) - 1; 0 <= _ref ? _i <= _ref : _i >= _ref; i = 0 <= _ref ? ++_i : --_i) {
    for (j = _j = 0, _ref1 = Mori.count(Mori.get(store.cells, 0)) - 1; 0 <= _ref1 ? _j <= _ref1 : _j >= _ref1; j = 0 <= _ref1 ? ++_j : --_j) {
      addr = utils.getAddressFromCoord([i, j]);
      raw = Mori.get_in(store.cells, [i, j, 'raw']);
      calcRes = raw[0] === '=' && raw.slice(1) ? getCalcResult(raw) : raw;
      if (typeof calcRes === 'number') {
        calculated[addr.toUpperCase()] = calcRes;
      }
      store.cells = Mori.assoc_in(store.cells, [i, j, 'calc'], calcRes);
    }
  }
  store.redoStates = Mori.list();
  store.undoStates = Mori.conj(store.undoStates, store.cells);
  store.canUndo = true;
  return store.canRedo = false;
};

getCalcResultAt = function(addr) {
  var coord, raw;
  addr = addr.toUpperCase();
  if (addr in calculated) {
    return calculated[addr];
  } else {
    coord = utils.getCoordFromAddress(addr);
    raw = Mori.get_in(store.cells, coord.concat('raw'), '');
    return getCalcResult(raw);
  }
};

getCalcResult = function(raw) {
  var e;
  if (raw[0] === '=' && raw.length > 1) {
    try {
      return parser.parse(raw.slice(1));
    } catch (_error) {
      e = _error;
      return parseStr(raw.toString());
    }
  } else {
    return parseStr(raw.toString());
  }
};

parseStr = function(raw) {
  var f;
  if (!raw.length) {
    return 0;
  }
  f = parseFloat(raw);
  if (!isNaN(f) && isFinite(raw)) {
    return f;
  } else {
    return raw;
  }
};

getMatrixValues = function(start, end) {
  var addr, colEnd, colStart, i, j, matrix, rowArray, rowEnd, rowStart, _i, _j;
  colStart = start[0].toUpperCase().charCodeAt(0) - 65;
  colEnd = end[0].toUpperCase().charCodeAt(0) - 65;
  rowStart = start.slice(1) - 1;
  rowEnd = end.slice(1) - 1;
  matrix = [];
  for (i = _i = rowStart; rowStart <= rowEnd ? _i <= rowEnd : _i >= rowEnd; i = rowStart <= rowEnd ? ++_i : --_i) {
    rowArray = [];
    for (j = _j = colStart; colStart <= colEnd ? _j <= colEnd : _j >= colEnd; j = colStart <= colEnd ? ++_j : --_j) {
      addr = utils.getAddressFromCoord([i, j]);
      rowArray.push(getCalcResultAt(addr));
    }
    matrix.push(rowArray);
  }
  return matrix;
};

parser = require('./formula-parser');