ghc-ext-desc-db.js

$$(".extension").map(function (x) {
  const
    getName = function () {
      const
        maybeName = x.querySelector(".descname"),
        name = null == maybeName ? "no name" : maybeName.innerText;
      
      return name;
    },
    getDek = function () {
      const
        maybeDek = x.querySelector("dd"),
        dek = null == maybeDek ? null : maybeDek.innerText;
      
      return dek;
    },
    extractImplies = function (src) {
      const
        maybeImplies = (/Implies:\s+((\S+|,\s+)+)(\s*Since.*)/).exec(src),
        [implies, rest] = null == maybeImplies ? [null, null] : [maybeImplies[1].split(", "), maybeImplies[3]];
        
      return [implies, rest];
    },
    extractSince = function (src) {
      const
        maybeSince = (/Since:\s+((\d+|\.)+)(.*)/s).exec(dek),
        [since, rest] = null == maybeSince ? [null, null] : [maybeSince[1].split(".").join("|"), maybeSince[3]];
        
      return [since, rest];
    },
    extractDesc = function (src) {
      const
        result = src.replace(/\n/g, " ");
        
      return result;
    }
    name = getName(),
    dek = getDek(),
    [implies, sinceSrc] = null == dek ? [] : extractImplies(dek),
    [since, descSrc] = null == dek ? [] : extractSince(null == implies ? dek : sinceSrc),
    desc = null == descSrc ? null : extractDesc(descSrc),
    result = {dek: dek, name: name, implies: implies, since: since, desc: desc};

  return result;
}).sort(function (a, b) {
  return a.name.localeCompare(b.name);
}).map(function (x) {
  const
    result = `${x.name}|${x.implies}|${x.since}|${x.desc}`;
  return result;
}).join("\n");