diff --git a/tools.js b/tools.js
index 06ad848..4da833f 100644
--- a/tools.js
+++ b/tools.js
@@ -106,21 +106,6 @@ function groupOps(ops) {
   return groupBy(eq, ops.sort());
 }
 
-// See: https://en.wikipedia.org/wiki/Trie
-/*function buildTrie(prefix, operators) {
-  var grps = groupOps(operators);
-  return [prefix, grps.map(
-    function(ops) {
-      if (ops.length === 1)
-        return ops;
-      return buildTrie(ops[0][0],
-        ops.map(
-          function(op) {
-            return op.slice(1);
-          }).filter(function (x){ return x;}));
-    })];
-}*/
-
 function find(f, haystack) {
   for(var i = 0; i < haystack.length; i++) {
     if (f(haystack[i]))
@@ -129,65 +114,6 @@ function find(f, haystack) {
   return false;
 }
 
-/*function matchNext(c, trie) {
-  var next = find(function(path) {
-    if (path.length === 1) {
-      return path[0][0] === c;
-    }
-    return path[0] === c;
-  }, trie);
-  if (next !== false)
-    return trie[next];
-  return false;
-}
-
-function trieMatch(n, str, trie) {
-  if (trie.length === 1 && ((typeof trie[0]) === "string")) {
-    if (trie[0].slice(1) === str.slice(0, trie[0].length-1))
-      return trie[0].length + n;
-    return false;
-  }
-  var matched = matchNext(str[0], trie);
-  if (matched && matched.length > 1)
-    return trieMatch(n+1, str.slice(1), matched[1]);
-  else if (matched)
-    return trieMatch(n, str.slice(1), matched)
-  else
-    return n;
-}
-
-function trieMatch(matches, iterated, n, str, trie) {
-  console.log(str, trie);
-  iterated = iterated + str[0];
-  if (matchable(iterated)) {
-    matches.push(n);
-  }
-
-  var matched = matchNext(str[0], trie);
-  if (matched) {
-    return trieMatch(matches, iterated, n+1, str.slice(1), matched);
-  }
-  else
-    return matches;
-}
-
-var ops = ["**","**%a&&","**%*^", "$$", "&s"];
-function matchable(x) {
-  return find(equal(x), ops) !== false;
-}
-
-var trie = buildTrie("", ["**","**%a&&","**%*^", "$$", "&s"])[1];
-//console.log(find(function(x) { return x === "a";}, "tybabb"));
-//console.log(matchNext('*', matchNext('*',trie)[1]));
-//function matchStr(n, str, trie) {
-//}
-//
-var str = "**%a&&345454";
-var matched = trieMatch([], "", 0, str, trie);
-console.log(matched);
-//console.log(matchStr(0, "**^*$4545", buildTrie("", ["**", "**^"])[1]));
-*/
-
 
 /*
  * Problem: