Old Reddit: Simple Filter

Filter subreddits, users, websites and topics

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name			Old Reddit: Simple Filter
// @description		Filter subreddits, users, websites and topics
// @version			2019.8.14
// @author			Flightless22
// @license			MIT; https://opensource.org/licenses/MIT
// @namespace		flightless22.ORSF
// @include		 	https://old.reddit.com/*
// @match			*://old.reddit.com/*
// @grant			none
// @run-at			document-end
// ==/UserScript==
(function() {
	"use strict";
  
  	//TODO: Optimize

	//------------------------------------------
	//-------[User Configurable Settings]-------
	//------------------------------------------
	var subreddit_filter = [];
	var user_filter = [];
	var title_filter = [];
	var site_filter = [];

	var subreddit_filter_on = true;
	var user_filter_on = true;
	var title_filter_on = true;
	var site_filter_on = true;
  var debug = false;

	//------------------------------------------
	//----------[Do Not Edit Below]-------------
	//------------------------------------------

	function init(){
		if (subreddit_filter_on) subreddit_filter_on = subreddit_filter.length > 0;
		if (user_filter_on) user_filter_on = user_filter.length > 0;
		if (title_filter_on) title_filter_on = title_filter.length > 0;
		if (site_filter_on) site_filter_on = site_filter.length > 0;

		console.log("%c> Reddit Simple Filter: ", "color:#ffa600",
			"{ Subreddits (" + (subreddit_filter_on ? subreddit_filter.length : "none") + ")" +
			" | Users (" + (user_filter_on ? user_filter.length : "none") + ")" +
			" | Titles (" + (title_filter_on ? title_filter.length : "none") + ")" +
			" | Sites (" + (site_filter_on ? site_filter.length : "none") + ") }"
		);

		if (!subreddit_filter_on && !user_filter_on && !title_filter_on && !site_filter_on) return;

		subreddit_filter = arr_to_lowercase(subreddit_filter);
		user_filter = arr_to_lowercase(user_filter);
		title_filter = arr_exact_str_or_regexp(title_filter);
		site_filter = arr_to_lowercase(site_filter);

		setup();
	}

	function setup(){
		if (location.hostname.indexOf("old.reddit.com") > -1){

			if (location.pathname.indexOf("search") && location.search.indexOf("q=") > -1){
				old_reddit_filter(
					{"thing" : "div.search-result-group div.search-result",
						"subreddit" : "a.search-subreddit-link",
						"user" : "a.author",
						"title" : "a.search-title",
						"site": "????"});

			}else{
				old_reddit_filter(
					{"thing" : "div.thing",
						"subreddit" : "a.subreddit",
						"user" : "a.author",
						"title" : "a.title",
						"site" : "span.domain"});
			}
		}else{

		//
		}
	}

	function old_reddit_filter(query = {}) {
		var thingymebob = document.querySelectorAll(query.thing);
		var thingy = {thing : null, subreddit : null, user : null, title : null, site : null};

		for (var i = 0; i < thingymebob.length; i++) {

			thingy.thing = thingymebob[i];
			thingy.subreddit = thingymebob[i].querySelector(query.subreddit);
			thingy.subreddit = thingy.subreddit !== null ? thingy.subreddit.textContent.substring(2) : "" ;//strip off 'r/'
			thingy.user = thingymebob[i].querySelector(query.user);
			thingy.user = thingy.user !== null ? thingy.user.textContent : "" ;
			thingy.title = thingymebob[i].querySelector(query.title);
			thingy.title = thingy.title !== null ? thingy.title.textContent : "";
			thingy.site = thingymebob[i].querySelector(query.site);
			thingy.site = thingy.site !== null ? thingy.site.textContent.substring(1,thingy.site.textContent.length-1) : "";//strip off ()
      if (debug){
			  console.log(i, thingymebob[i]);
			  console.log("id: ", thingy.thing.id, "| subreddit: ", thingy.subreddit,
				"| user: ", thingy.user, "| title: ", thingy.title, "|site: ", thingy.site); 
      }
			filter(thingy);

		}
	}

	function filter(thingy){
		var x, match = null;
		var subreddit = thingy.subreddit.toLowerCase();
		var user = thingy.user.toLowerCase();
		var title = thingy.title.toLowerCase(); //could break user regex filter
		var site = thingy.site.toLowerCase();

		if (subreddit_filter_on && (x = subreddit_filter.findIndex(s => s === subreddit)) > -1) {
			match = ["Subreddit", subreddit_filter[x]];
		}else if (user_filter_on && (x = user_filter.findIndex(s => s === user)) > -1) {
			match = ["User", user_filter[x]];
		}else if (title_filter_on && (x = title_filter.findIndex(s => s.test(title))) > -1) {
			match = ["Title", title_filter[x]];
		}else if (site_filter_on && (x = site_filter.findIndex(s => s === site)) > -1) {
			match = ["Site", site_filter[x]];
		}

		if (match !== null) {
			thingy.thing.style.display = "none";

			console.log("%c> Reddit Simple Filter: ", "color:#ffa600", "Filter: '" + match[0] + "' Match: '" + match[1] + "' Id: "
      + thingy.thing.id + "' , Subreddit: '" + thingy.subreddit + "' , User: '" + thingy.user + "' , Title: '" + thingy.title + "'")
		}

	}

	function arr_exact_str_or_regexp(arr) {
		for (var i = 0; i < arr.length; i++){
			if (typeof arr[i] !== "object" && !(arr[i] instanceof RegExp) ) {
				arr[i] = new RegExp("\\b" + str_esc_regexp(arr[i].toLowerCase()) + "\\b", "i");
			}
		}
		return arr;
	}

	function str_esc_regexp(str){
		return str.replace(/[.*+?\/\\^${}()|\[\]]/gm, "\\$&");
	}

	function arr_to_lowercase(arr){
		if (arr.length < 1) return arr;
		return arr.join("|").toLowerCase().split("|");
	}

	init();

})();