Cache regular expressions, set up functions and selectors, only fire required functions.

4chan_x.user.js

@@ -527,29 +527,90 @@
     return Array.prototype.slice.call(root.querySelectorAll(selector));
   };
   filter = {
+    regexps: {},
     init: function() {
-      var filter, filters, key, m, regx, _i, _len;
+      var filter, key, m, regx, _i, _len, _results;
       HTMLBlockquoteElement.prototype.toString = function() {
         return ($.el('a', {
           innerHTML: this.innerHTML.replace(/<br>/g, '\n')
         })).textContent;
       };
-      filters = {};
+      _results = [];
       for (key in config.filter) {
         if (!(m = conf[key].match(/(.+)/g))) {
           continue;
         }
-        filters[key] = [];
+        this.regexps[key] = [];
         for (_i = 0, _len = m.length; _i < _len; _i++) {
           filter = m[_i];
           try {
             if ((regx = eval(filter)).constructor === RegExp) {
-              filters[key].push(regx);
+              this.regexps[key].push(regx);
             }
           } catch (_e) {}
         }
+        _results.push(this.regexps[key].length ? g.callbacks.push(this[key]) : void 0);
       }
-      return log(filters);
+      return _results;
+    },
+    test: function(key, value) {
+      var regexp, _i, _len, _ref;
+      _ref = filter.regexps[key];
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        regexp = _ref[_i];
+        if (regexp.test(value)) {
+          return true;
+        }
+      }
+    },
+    name: function(root) {
+      var name;
+      if (!(name = root.className === 'op' ? $('.postername', root).textContent : $('.commentpostername', root).textContent)) {
+        return;
+      }
+      return filter.test('name', name);
+    },
+    trip: function(root) {
+      var trip;
+      if (!(trip = $('.postertrip', root))) {
+        return;
+      }
+      return filter.test('trip', trip.textContent);
+    },
+    mail: function(root) {
+      var mail;
+      if (!(mail = $('.linkmail', root))) {
+        return;
+      }
+      return filter.test('mail', mail.href);
+    },
+    sub: function(root) {
+      var sub;
+      if (!(sub = root.className === 'op' ? $('.filetitle', root).textContent : $('.replytitle', root).textContent)) {
+        return;
+      }
+      return filter.test('sub', sub);
+    },
+    com: function(root) {
+      var com;
+      if (!(com = $('blockquote', root).toString())) {
+        return;
+      }
+      return filter.test('com', com);
+    },
+    file: function(root) {
+      var file;
+      if (!(file = $('.filesize span', root))) {
+        return;
+      }
+      return filter.test('file', file.title);
+    },
+    md5: function(root) {
+      var img;
+      if (!(img = $('img[md5]', root))) {
+        return;
+      }
+      return filter.test('md5', img.getAttribute('md5'));
     }
   };
   expandComment = {

script.coffee

@@ -384,20 +384,53 @@ $$ = (selector, root=d.body) ->
   Array::slice.call root.querySelectorAll selector
 
 filter =
+  regexps: {}
   init: ->
     HTMLBlockquoteElement.prototype.toString = ->
       return ($.el 'a', innerHTML: @innerHTML.replace /<br>/g, '\n').textContent
 
-    filters = {}
     for key of config.filter
       unless m = conf[key].match /(.+)/g
         continue
-      filters[key] = []
+      @regexps[key] = []
       for filter in m
         try if (regx = eval filter).constructor is RegExp
-          filters[key].push regx
+          @regexps[key].push regx
+      #only execute what's filterable
+      g.callbacks.push @[key] if @regexps[key].length
 
-    log filters
+  test: (key, value) ->
+    for regexp in filter.regexps[key]
+      return true if regexp.test value
+
+  name: (root) ->
+    unless (name = if root.className is 'op' then $('.postername', root).textContent else $('.commentpostername', root).textContent)
+      return
+    filter.test 'name', name
+  trip: (root) ->
+    unless trip = $('.postertrip', root)
+      return
+    filter.test 'trip', trip.textContent
+  mail: (root) ->
+    unless mail = $('.linkmail', root)
+      return
+    filter.test 'mail', mail.href
+  sub: (root) ->
+    unless(sub = if root.className is 'op' then $('.filetitle', root).textContent else $('.replytitle', root).textContent)
+      return
+    filter.test 'sub', sub
+  com: (root) ->
+    unless com = $('blockquote', root).toString()
+      return
+    filter.test 'com', com
+  file: (root) ->
+    unless file = $ '.filesize span', root
+      return
+    filter.test 'file', file.title
+  md5: (root) ->
+    unless img = $ 'img[md5]', root
+      return
+    filter.test 'md5', img.getAttribute('md5')
 
 expandComment =
   init: ->