Toki Pona word generator

nimi-ken-ale.ts

// Caution: combinatorial explosion will eat your harddrive
const MAX_SYLLABLE_COUNT = 4;
const OUTPUT_FILE = `${MAX_SYLLABLE_COUNT}-syllables.txt`;

// deno-fmt-ignore
const syllables = [
    "a",   "e",   "i",   "o",   "u",
   "ja",  "je",  "jo",  "ju",  "ka",
   "ke",  "ki",  "ko",  "ku",  "la",
   "le",  "li",  "lo",  "lu",  "ma",
   "me",  "mi",  "mo",  "mu",  "na",
   "ne",  "ni", "nja", "nje", "njo",
  "nju", "nka", "nke", "nki", "nko",
  "nku", "nla", "nle", "nli", "nlo",
  "nlu",  "no", "npa", "npe", "npi",
  "npo", "npu", "nsa", "nse", "nsi",
  "nso", "nsu", "nta", "nte", "nto",
  "ntu",  "nu", "nwa", "nwe", "nwi",
   "pa",  "pe",  "pi",  "po",  "pu",
   "sa",  "se",  "si",  "so",  "su",
   "ta",  "te",  "to",  "tu",  "wa",
   "we",  "wi",
];

const encoder = new TextEncoder();
const output = await Deno.open(OUTPUT_FILE, {
  create: true,
  write: true,
  truncate: true,
});

void function generateWords(sequence: string[], lengthLeft: number) {
  // write to file
  if (sequence.length) {
    const word = sequence.join("");
    output.writeSync(
      encoder.encode(`${word}\n${word}n\n`),
    );
  }
  if (lengthLeft == 0) return;
  // generate longer words
  for (let i = sequence.length ? 5 : 0; i < syllables.length; ++i) {
    // don't start words with ncv
    if (!sequence.length && i > 26 && i < 60 && i != 41 && i != 56) continue;
    generateWords(sequence.concat(syllables[i]), lengthLeft - 1);
  }
}([], MAX_SYLLABLE_COUNT);

output.close();