@naimi/alib/shared/alib-csv.js

alib

//!--- CSV 2 2D Array
//! Return array of string values, or NULL if CSV string not well formed.
function CSVtoArray(text) {
  var re_valid = /^\s*(?:'[^'\\]*(?:\\[\S\s][^'\\]*)*'|"[^"\\]*(?:\\[\S\s][^"\\]*)*"|[^,'"\s\\]*(?:\s+[^,'"\s\\]+)*)\s*(?:,\s*(?:'[^'\\]*(?:\\[\S\s][^'\\]*)*'|"[^"\\]*(?:\\[\S\s][^"\\]*)*"|[^,'"\s\\]*(?:\s+[^,'"\s\\]+)*)\s*)*$/;
  var re_value = /(?!\s*$)\s*(?:'([^'\\]*(?:\\[\S\s][^'\\]*)*)'|"([^"\\]*(?:\\[\S\s][^"\\]*)*)"|([^,'"\s\\]*(?:\s+[^,'"\s\\]+)*))\s*(?:,|$)/g;
  //! Return NULL if input string is not well formed CSV string.
  if (!re_valid.test(text)) return null;
  var a = []; //! Initialize array to receive values.
  text.replace(re_value, //! "Walk" the string using replace with callback.
    function(m0, m1, m2, m3) {
      //! Remove backslash from \' in single quoted values.
      if (m1 !== undefined) a.push(m1.replace(/\\'/g, "'"));
      // Remove backslash from \" in double quoted values.
      else if (m2 !== undefined) a.push(m2.replace(/\\"/g, '"'));
      else if (m3 !== undefined) a.push(m3);
      return ''; // Return empty string.
    });
  // Handle special case of empty last value.
  if (/,\s*$/.test(text)) a.push('');
  return a;
};

function csv2arr(csv) {
  try {
    rows = csv.split("\n");

    return rows.map(function(row) {
      return row.split(",");
    });
  } catch (e) {
    console.log("ERROR " + e.number + ": " + e.description + " - csv2arr (" + csv + ")\n");
  }
};

function csv2arr2(csv) {
  var ret = [];
  var rows = csv.split("\n");

  for (var i = 0; i < rows.length; i++) {
    var cells = rows[i].split(",");
    ret.push(cells);
  }
  return ret;
};

read_csv = function(file_name) {
  try {
    if (typeof js_engine != 'undefined')
      //! if (js_engine) //js_engine = 0: node, 1: JScript
      str = fs.OpenTextFile(file_name, 1).ReadAll();
    else
      str = require('fs').readFileSync(file_name, 'utf8');
    //! console.log(str);
    //! var ret = str.split(',');
    var ret = csv2arr2(str);
  } catch (e) {
    console.log("ERROR alib-csv-01 " + e.number + ": " + e.description + " - read_csv (" + file_name + ")\n");
  }
  return ret;
}

//! find obj by key in array of objs
findObjectByKey = function(array, key, value) { //! convert to prototype
  for (var i = 0; i < array.length; i++)
    if (array[i][key] === value)
      return array[i];
  return null;
}

sum_2darr = function(arr) {
  var siz_m = arr.length;
  var siz_n = arr[0].length;
  
  
  ret = {};
  ret.sum_o = [0, 0, 0, 0];
  ret.sum_d = [0, 0, 0, 0];
  for (var i = 0; i < siz_m; i++) {
    for (var j = 0; j < siz_n; j++) {
      ret.sum_o[i] += arr[i][j];
      ret.sum_d[j] += arr[i][j];
    }
    
    
  }
  return ret;
}

save = function(s, fn) {
  if (fn.includes("function")) {
    console.log("wrong fn: " + fn);
    return -1;
  }
  
  
  try {
    
    
    
    
    if (jscript) {
      var fs = new ActiveXObject("Scripting.FileSystemObject");
      
      var ForReading = 1,
        ForWriting = 2,
        ForAppending = 8; //! iomode 1: read, 2: write, 8: append
      var TristateUseDefault = -2,
        TristateTrue = -1,
        TristateFalse = 0; //! format
      
      
      var fh = fs.OpenTextFile(fn, ForAppending, true);
      
      fh.Write(s);
      fh.Close();
      
      
      
      
    } else {
      fs = require('fs');
      
      fs.appendFileSync(fn, s, 'utf8', function(err) {
        if (err) return console.log(err);
        
      });
      
      
      
      
    }

  } catch (e) {
    console.log("ERROR " + e.number + ": " + e.description + " - save_f (" + fn + ")\n");
  }

}

log_save = function(s, fn, show) {
  if (show) process.stdout.write(s);
  if (typeof s == 'string')
    save(s, fn);
  else
    console.log("ERROR 109: check input data");
}