parseDayZProfile.js

const parseDayZProfile = async e => {
  // asynchronous event listener for input change.
  // get the uploaded file and...
  const f = e.target.files[0];

  //...parse it to some text
  let t = await f.text();

  // set divider and make sure reserved words are used correctly
  const divider = "Survivor";
  const reserved = [divider];

  // body parts that the gear is equipped on.
  // I don't play this game so I don't know if
  // these are all actual body parts in the game. lol
  // you can add some more or take some away if you have to
  const parts = [
    "Body",
    "Legs",
    "Feet",
    "Arms",
    "Hands",
    "Head",
    "Chest",
    "Back"
  ];

  // regular expression that matches character names in data
  const nameRegex = /Survivor[M | F]_[A-Za-z]+/gim;

  // structure to hold character equip data
  const structure = {};

  // remove control characters, excess spaces, items that are not valid words,
  // items that are fucked up in some way
  t = t
    .replace(/[\x00-\x1F\x7F-\x9F\W]/gm, " ")
    .replace(/\s+/gim, " ")
    .trim()
    .split(" ")
    .filter(item => item.length > 3)
    .filter(item => !/^[a-z]/gm.test(item[0]))
    .filter(item => {
      const b = item
        .split("")
        .sort()
        .join("")
        .replace(/\d/gm, "");

      return !/[A-Z]{4,}/gm.test(b);
    });

  // add body parts to character objects
  t.forEach(item => {
    if (item === divider) {
      return;
    }

    const surv = structure;

    // if current item is a character, then add on all the body part arrays
    if (nameRegex.test(item)) {
      surv[item] = {};
      parts.forEach(p => (surv[item][p] = []));
      reserved.push(item);
    }
  });

  // filter out extraneous names in data
  t = t.filter(n => !nameRegex.test(n));

  // set up temp array for equipment
  let temp = [];

  // initialize flags to hold the current operating character, and current body part
  let currentPerson, currentPart;

  // for each item in the array of text,
  t.forEach(item => {
    const s = structure;

    // if the item is not a body part or a reserved keyword,
    if (!parts.includes(item) && !reserved.includes(item)) {
      // add the item into the array. it should be an equipment piece
      temp.push(item);
    } else {
      // otherwise, set the current body part.
      if (parts.includes(item)) {
        currentPart = item;

        // go through the temp array, which is now full of equipment,
        temp.forEach(t => {
          // and add on equipment to the current body part on the current person.
          s[currentPerson][currentPart].push(t);
        });

        // empty out the temporary 'gear holder'
        temp = [];
      } else if (reserved.includes(item) && item !== divider) {
        // if a new name is found, set the current person to the new name

        currentPerson = item;
      }
    }
  });

  // return the created object
  return structure;
};