middleout.js/dist/chunk-6B3QBFML.js

A spoof compression library that pretends to revolutionize data compression using made-up algorithms — inspired by the legendary middle-out compression from Silicon Valley

#!/usr/bin/env node
import {
  decodeMO,
  encodeMO
} from "./chunk-EKQOSSOR.js";
import {
  getWeissmanScore
} from "./chunk-MRISBIOS.js";

// src/algorithms/zph.ts
function compressWithZPH(input, config) {
  const preserveWhitespace = config?.preserveWhitespace ?? true;
  const cleanedInput = preserveWhitespace ? input : input.replace(/\s+/g, "");
  let compressed = "";
  let i = 0;
  while (i < cleanedInput.length) {
    const char = cleanedInput[i];
    let count = 1;
    while (i + 1 < cleanedInput.length && cleanedInput[i + 1] === char) {
      count++;
      i++;
    }
    if (count >= 3) {
      compressed += `{${char}:${count}}`;
    } else {
      compressed += char.repeat(count);
    }
    i++;
  }
  const targetWeissman = config?.targetWeissman || 10;
  const weissmanScore = getWeissmanScore(
    "zph",
    input.length,
    compressed.length,
    targetWeissman
  );
  return {
    original: input,
    compressed,
    originalSize: input.length,
    compressedSize: compressed.length,
    algorithm: "zph",
    weissmanScore,
    encoded: encodeMO("zph", compressed, weissmanScore)
  };
}
function decompressWithZPH(encoded) {
  const { compressedData } = decodeMO(encoded);
  return compressedData.replace(/\{(.)\:(\d+)\}/g, (_, char, count) => {
    return char.repeat(Number(count));
  });
}

export {
  compressWithZPH,
  decompressWithZPH
};