Initial import with skill sheet working

node_modules/teex/index.js

@@ -0,0 +1,52 @@
+const { Readable } = require('streamx')
+
+module.exports = function (s, forks = 2) {
+  const streams = new Array(forks)
+  const status = new Array(forks).fill(true)
+
+  let ended = false
+
+  for (let i = 0; i < forks; i++) {
+    streams[i] = new Readable({
+      read (cb) {
+        const check = !status[i]
+        status[i] = true
+        if (check && allReadable()) s.resume()
+        cb(null)
+      }
+    })
+  }
+
+  s.on('end', function () {
+    ended = true
+    for (const stream of streams) stream.push(null)
+  })
+
+  s.on('error', function (err) {
+    for (const stream of streams) stream.destroy(err)
+  })
+
+  s.on('close', function () {
+    if (ended) return
+    for (const stream of streams) stream.destroy()
+  })
+
+  s.on('data', function (data) {
+    let needsPause = false
+    for (let i = 0; i < streams.length; i++) {
+      if (!(status[i] = streams[i].push(data))) {
+        needsPause = true
+      }
+    }
+    if (needsPause) s.pause()
+  })
+
+  return streams
+
+  function allReadable () {
+    for (let j = 0; j < status.length; j++) {
+      if (!status[j]) return false
+    }
+    return true
+  }
+}