oberknecht-utils/lib-ts/utils/ascii.ts

Utils for oberknecht packages

import { recreate } from "./recreate";
import { regexEscape } from "./regexEscape";

export class ascii {
  static specialCharacters = {
    "33": "!",
    "34": '"',
    "35": "#",
    "36": "$",
    "37": "%",
    "38": "&",
    "39": "'",
    "40": "(",
    "41": ")",
    "42": "*",
    "43": "+",
    "44": ",",
    "45": "-",
    "46": ".",
    "47": "/",
    "58": ":",
    "59": ";",
    "60": "<",
    "61": "=",
    "62": ">",
    "63": "?",
    "64": "@",
    "91": "[",
    "92": "\\",
    "93": "]",
    "94": "^",
    "95": "_",
    "96": "`",
    "123": "{",
    "124": "|",
    "125": "}",
    "126": "~",
  };
  static alphabetCharactersLower = {
    "97": "a",
    "98": "b",
    "99": "c",
    "100": "d",
    "101": "e",
    "102": "f",
    "103": "g",
    "104": "h",
    "105": "i",
    "106": "j",
    "107": "k",
    "108": "l",
    "109": "m",
    "110": "n",
    "111": "o",
    "112": "p",
    "113": "q",
    "114": "r",
    "115": "s",
    "116": "t",
    "117": "u",
    "118": "v",
    "119": "w",
    "120": "x",
    "121": "y",
    "122": "z",
  };
  static alphabetCharactersUpper = {
    "65": "A",
    "66": "B",
    "67": "C",
    "68": "D",
    "69": "E",
    "70": "F",
    "71": "G",
    "72": "H",
    "73": "I",
    "74": "J",
    "75": "K",
    "76": "L",
    "77": "M",
    "78": "N",
    "79": "O",
    "80": "P",
    "81": "Q",
    "82": "R",
    "83": "S",
    "84": "T",
    "85": "U",
    "86": "V",
    "87": "W",
    "88": "X",
    "89": "Y",
    "90": "Z",
  };
  static alphabetCharactersAll = {
    ...this.alphabetCharactersLower,
    ...this.alphabetCharactersUpper,
  };
  static numberCharacters = {
    "48": "0",
    "49": "1",
    "50": "2",
    "51": "3",
    "52": "4",
    "53": "5",
    "54": "6",
    "55": "7",
    "56": "8",
    "57": "9",
  };
  static allCharacters = {
    ...this.specialCharacters,
    ...this.alphabetCharactersAll,
    ...this.numberCharacters,
  };

  static toChars = (s: string) => {
    let r = recreate(s);
    Object.keys(this.allCharacters).forEach((a) => {
      r = r.replace(new RegExp(`%${a}`, "gi"), this.allCharacters[a]);
    });

    r = r.replace(/%32/g, " ");

    return r;
  };

  static toNumbers = (
    s: string,
    includeAlphabet?: boolean,
    includeNumbers?: boolean
  ) => {
    let r = recreate(s);

    Object.values(this.specialCharacters).forEach((a, i) => {
      r = r.replace(
        new RegExp(`(?<!\\u0001%)${regexEscape(a)}(?!\\u0001)`, "gi"),
        `\u0001%${Object.keys(this.specialCharacters)[i]}\u0001`
      );
    });

    if (includeNumbers) {
      Object.values(this.numberCharacters).forEach((a, i) => {
        r = r.replace(
          new RegExp(`(?<!\\u0001%)${a}(?!\\u0001)`, "gi"),
          `\u0001%${Object.keys(this.alphabetCharactersAll)[i]}\u0001`
        );
      });
    }

    if (includeAlphabet) {
      Object.values(this.alphabetCharactersAll).forEach((a, i) => {
        r = r.replace(
          new RegExp(`(?<!\\u0001%)${a}(!?\\u0001)`, "gi"),
          `\u0001%${Object.keys(this.alphabetCharactersAll)[i]}\u0001`
        );
      });
    }

    r = r.replace(/\s/g, `\u0001%32\u0001`);

    return r.replace(/\u0001/g, "");
  };
}