@barchart/common-js/dist/cjs/lang/base52.js

Library of common JavaScript utilities

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var base52_exports = {};
__export(base52_exports, {
  fromBaseTen: () => fromBaseTen
});
module.exports = __toCommonJS(base52_exports);
var assert = __toESM(require("./assert.js"));
var is = __toESM(require("./is.js"));
const BASE = 52;
const characters = [];
for (let c = 97; c < 123; c++) {
  characters.push(String.fromCharCode(c));
}
for (let c = 65; c < 91; c++) {
  characters.push(String.fromCharCode(c));
}
function fromBaseTen(value, places) {
  assert.argumentIsValid(value, "value", is.large, "must be an integer");
  if (places) {
    assert.argumentIsValid(places, "places", is.integer, "must be an integer");
    assert.argumentIsValid(places, "places", is.positive, "must be positive");
  }
  const absolute = Math.abs(value);
  const negative = value < 0;
  let placesToUse;
  if (places) {
    placesToUse = places;
  } else {
    placesToUse = 1;
    while (true) {
      if (absolute < Math.pow(BASE, placesToUse)) {
        break;
      }
      placesToUse = placesToUse + 1;
    }
  }
  const builder = [];
  if (negative) {
    builder.push("-");
  }
  let remaining = absolute;
  for (let place = placesToUse; place > 0; place--) {
    const magnitude = Math.pow(BASE, place - 1);
    const multiples = Math.floor(remaining / magnitude);
    const character = characters[multiples];
    remaining = remaining - multiples * magnitude;
    builder.push(character);
  }
  return builder.join("");
}