function parse(value) {
  var lines = value.split("\n")
  var groups = Object.create(null)
  var currentGroup
  lines.forEach(x => {
      x = x.trim();
      if (!x) return;
      if (x.startsWith("##")) {
          currentGroup = groups[x] = {}
      } else if (x.startsWith("|")) {
          var parts = x.split("|").map(w => w.trim()).slice(1,-1)
          if (parts[0][0] == ":") return
          if (parts[2] == "Action") return;
          currentGroup[parts[2]] = {
              win: parts[0], mac: parts[1], name: parts[2]
          }
      }
  })
  return groups;
}
function formatLine(a, b, c, p = " ") {
  var len = p == " " ? 31 : 32
  return [
      "",
      a.padEnd(len, p),
      b.padEnd(len, p),
      c.padEnd(len, p),
      "",
  ].join(p == " " ? "| ": "|").trim()
}
function stringify(groups) {
  var lines = []
  for (var i in groups) {
      var group = groups[i]
      lines.push(i, "")
      lines.push(
          formatLine("Windows/Linux", "Mac", "Action"),
          formatLine(":", ":", ":", "-")
      )
      for (var j in group) {
          var item = group[j];
          lines.push(
              formatLine(item.win, item.mac, item.name),
          )
      }
      lines.push("", "")
  }
  return lines.join("\n")
}


groups =  parse(/* replace with existing MD */)

var old = {}
for (var i in groups) {
  for (var j in groups[i]) {
      old[j] = groups[i]
  }
}


function formatKey(binding, platform) {
  var key = typeof binding == "string" ? binding : binding[platform];
  return key ? key.replace(/[|]/g, ", ") : "---"
}

var unchanged = []
var changed = []
for (var i in editor.commands.byName) {
  var command = editor.commands.byName[i]
  if (!command.bindKey) {
      // console.log(command) 
      continue
  }
  
  var win = formatKey(command.bindKey, "win");
  var mac = formatKey(command.bindKey, "mac");
  var name = command.description
  if (!name || name === 'undefined') {
      continue
      console.log(command)
  }
  var target = old[name] ? unchanged : changed
  target.push(
       formatLine(win, mac, name),
  )
}

copy(stringify(groups))

changed