[Better] [s4s]

Enhances your [s4s] posting experience with the new formatting options

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 [Better] [s4s]
// @namespace betters4s
// @version 2016.03.03.1
// @include *://boards.4chan.org/s4s/*
// @grant none
// @description Enhances your [s4s] posting experience with the new formatting options
// ==/UserScript==
'use strict';

function convert(parent,lastnode,input,s){
	var bbcode='\\](((?!\\[(\\/?[buis]|flip|zalgo)\\]).|\n)*)\\[\\/'
	
	var body=input
	.replace(/&/g,'&')
	.replace(/<br>/g,'\n')
	.replace(/</g,'&lt;')
	.replace(/>/g,'&gt;')
	.replace(/\[spoiler\]/g,'<s>')
	.replace(/\[\/spoiler\]/g,'</s>')
	.replace(/\[code\]([\s\S]*)\[\/code\]/,function(){ // [code]
		var text=arguments[1]
		.replace(/#/g,'&#x23;')
		.replace(/%/g,'&#x25;')
		.replace(/&lt;/g,'&#x3c;')
		.replace(/&gt;/g,'&#x3e;')
		.replace(/\[/g,'&#x5b;')
		.replace(/\]/g,'&#x5d;')
		.replace(/\^/g,'&#x5e;')
		.replace(/{/g,'&#x7b;')
		.replace(/}/g,'&#x7d;')
		.replace(/<s>/g,'[spoiler]')
		.replace(/<\/s>/g,'[/spoiler]')
		.replace(/<[^>]*>/g,'')
		.trim()
		.replace(/\n/g,'\n</div><div>')
		if(text){
			return '<div class="codetext"><div>'+text+'</div></div>'
		}else{
			return arguments[1]
		}
	})
	.replace(new RegExp('\\[b'+bbcode+'b\\]','g'),'<b>$1</b>') // [b]
	.replace(new RegExp('\\[u'+bbcode+'u\\]','g'),'<u>$1</u>') // [u]
	.replace(new RegExp('\\[i'+bbcode+'i\\]','g'),'<i>$1</i>') // [i]
	.replace(new RegExp('\\[s'+bbcode+'s\\]','g'),'<span class="striketext">$1</span>') // [s]
	.replace(new RegExp('\\[flip'+bbcode+'flip\\]','g'),'<span class="flippedtext">$1</span>') // [flip]
	.replace(/([\w\d])\^([\w\d^]+)/g,function(array){ // super^script
		var array=array.split(/\^/g)
		if(array.length>7){
			array.splice(7,array.length-6)
		}
		var close=''
		for(var i=0;i<array.length-1;i++){
			close+='</sup>'
		}
		return array.join('<sup>')+close
	})
	.replace(/^\*\s+(.*)/gm,'<ul><li>$1</li></ul>') // * list
	.replace(/<\/ul>\n<ul>/g,'')
	.replace(/%<s[^>]*>([^<>]*)<\/s>/g,'%<s class="rainbowspoiler">$1</s>') // %[spoiler]rainbow spoiler[/spoiler]
	.replace(/(^|<\/?s[^>]*>\s*)(\[\s[^<>\n]*\s\])($|<\/?s>)/gm,'$1<span class="bluetext">$2</span>$3') // [ bluetext ]
	.replace(/(^|<\/?s[^>]*>\s*)({\s[^<>\n]*\s})($|<\/?s>)/gm,'$1<span class="purpletext">$2</span>$3') // { purpletext }
	.replace(/(^|<\/?s[^>]*>\s*)([^<>\n]*&lt;3)($|\s*<\/?s>)/gm,'$1<span class="pinktext">$2</span>$3') // pinktext <3
	.replace(/(^|<\/?s[^>]*>\s*)([^<>\n]*&lt;)($|\s*<\/?s>)/gm,'$1<span class="orangetext">$2</span>$3') // orangetext<
	.replace(/(^|<\/?s[^>]*>\s*)([^<>\n]*&gt;)($|\s*<\/?s>)/gm,'$1<span class="yellowtext">$2</span>$3') // yellowtext>
	.replace(/(^|<\/?s[^>]*>\s*)(=[^<>\n]*)($|\s*<\/?s>)/gm,'$1<span class="greentext">$2</span>$3') // =greentext
	.replace(/(^|<\/?s[^>]*>\s*)(#[^<>\n]*)($|\s*<\/?s>)/gm,'$1<span class="cyantext">$2</span>$3') // #cyantext
	.replace(/(^|<\/?s[^>]*>\s*)(\][^<>\n]*)($|\s*<\/?s>)/gm,'$1<span class="blacktext">$2</span>$3') // ]blacktext
	.replace(/(^|<\/?s[^>]*>\s*)(-[^<>\n]*)($|\s*<\/?s>)/gm,'$1<span class="whitetext">$2</span>$3') // -whitetext
	.replace(/(^|<\/?s[^>]*>\s*)(\+[^<>\n]*)($|\s*<\/?s>)/gm,'$1<span class="graytext">$2</span>$3') // +graytext
	.replace(/(^|<\/?s[^>]*>\s*)(_[^<>\n]*_)($|\s*<\/?s>)/gm,'$1<span class="comictext">$2</span>$3') // _comic sans text_
	.replace(/(^|\s|<\/?s[^>]*>\s*)(&gt;[^<>\n]*)(\n?|\s*<\/?s>)/g,function(){ // >greentext
		var original=arguments[arguments.length-1]
		if(/^&gt;&gt;(&gt;\/[\w\d]+\/\d*|\d+)$/.test(arguments[2])){
			return arguments[1]+arguments[2]+arguments[3]
		}else{
			return arguments[1]+'<span class="quote">'+arguments[2]+'</span>'+arguments[3]
		}
	})
	.replace(/(^|\s|<\/?s[^>]*>\s*)(&lt;[^<>\n]*)(\n?|\s*<\/?s>)/gm,'$1<span class="redtext">$2</span>$3') // <redtext
	.replace(/(^|\s|<\/?s[^>]*>)(%[^<>\n]*)(\n?|<\/?s>)/gm,function(){ // %rainbowtext
		var array=[arguments[1],arguments[2],arguments[3]]
		var rainbow=array[1].match(/&lt;|gt;|&amp;|./g)
		for(var i=0;i<rainbow.length;i++){
			rainbow[i]='<span style="color:hsl('+(i*18%360)+',100%,50%)">'+rainbow[i]+'</span>'
		}
		array[1]=rainbow.join('')
		return array.join('')
	})
	.replace(/(^|<\/?s[^>]*>)(\*[^<>\n]*\*)(\n|<\/?s>|$)/gm,function(){ // *randomtext*
		var array=[arguments[1],arguments[2],arguments[3]]
		var rainbow=array[1].match(/&lt;|gt;|&amp;|./g)
		for(var i=0;i<rainbow.length;i++){
			rainbow[i]='<span style="color:hsl('+((Math.random()*20|0)*18)+',100%,50%)">'+rainbow[i]+'</span>'
		}
		array[1]=rainbow.join('')
		return array.join('')
	})
	.replace(new RegExp('\\[zalgo'+bbcode+'zalgo\\]','g'),function(){ // [zalgo]
		var zalgos=['000102030405060708090a0b0c0d0e0f1a10111213143d3e3f424344464a4b4c505152575b636465666768696a6b6c6d6e6f','161718191c1d1e1f2023242526292a2b2c2d2e2f30313233393a3b3c454748494d4e53545556595a','151b21222728343536373840414f585c5d5e5f606162'].map(function(array){
			array=array.match(/../g)
			for(var i in array){
				array[i]=String.fromCharCode(parseInt(3+array[i],16))
			}
			return array.join('')
		})
		var randoms=[8,2,8]
		var txt=arguments[1]
		var newtxt=''
		for(var i in txt){
			newtxt+=txt[i]
			if(/[\w\d]/.test(txt[i])){
				for(var k in randoms){
					var r=Math.random()*randoms[k]
					for(var j=0;j<r;j++){
						newtxt+=zalgos[k][Math.random()*zalgos[k].length|0]
					}
				}
			}
		}
		return newtxt
	})
	.replace(/<\/ul>\n/g,'</ul>')
	
	var emotecount=0
	for(var key in emotelist){
		while(emotecount<50&&totalemotecount<=500&&new RegExp(':'+key+':','i').test(body)){
			body=body.replace(new RegExp(':('+key+'):','i'),'<img src="'+protocol+'//i.imgur.com/'+emotelist[key]+'" alt="$1" title="$1">')
			emotecount++
			totalemotecount++
		}
		if(emotecount>=50||totalemotecount>=500){
			break
		}
	}
	body=body.replace(/\n/g,'<br>').replace(/<s>/g,'<s'+s+'>')
	
	if(!parent){
		return body
	}
	var newspan=document.createElement('span')
	newspan.innerHTML=body
	if(lastnode){
		lastnode.parentNode.insertBefore(newspan,lastnode)
	}else{
		parent.appendChild(newspan)
	}
	return newspan.nextSibling
}

function updateposts(){
	if(!waiting){
		waiting=1
		setTimeout(function(){
			var posts=document.querySelectorAll('.postMessage:not(.betters4s)')
			for(var a=0;a<posts.length;a++){
				posts[a].classList.add('betters4s')
				
				var walk=document.createTreeWalker(posts[a],5,null)
				var newnode
				var allnodes=[]
				while(newnode=walk.nextNode()){
					allnodes.push(newnode)
				}
				var text=''
				var s=''
				var lastnode=0
				for(var i in allnodes){
					var node=allnodes[i]
					if(node.parentNode==posts[a]){
						if(node.nodeType==3){
							text+=node.data
						}else if(node.nodeName=='BR'){
							text+='\n'
						}else if(
							(node.nodeName=='S'||(
								node.nodeName=='SPAN'&&
								node.classList.contains('quote')
							))&&
							!node.getElementsByTagName('a').length
						){
							if(node.nodeName=='S'){
								if(!node.tabIndex){
									s=' tabindex="0"'
								}
								text+='[spoiler]'
							}
							text+=node.innerHTML
							.replace(/<br>/g,'\n')
							.replace(/<.*?>/g,'')
							.replace(/&lt;/g,'<')
							.replace(/&gt;/g,'>')
							.replace(/&amp;/g,'&')
							if(node.nodeName=='S'){
								text+='[/spoiler]'
							}
						}else if(node.nodeName!='WBR'){
							if(text){
								lastnode=convert(posts[a],node,text,s)
								text=''
							}
							continue
						}
						lastnode=node.nextSibling
						node.parentNode.removeChild(node)
					}else{
						if(text){
							lastnode=convert(posts[a],lastnode,text,s)
							text=''
						}
					}
				}
				if(text){
					convert(posts[a],0,text,s)
				}
				
				var postnumber=posts[a].parentNode.querySelector('.postNum.desktop>[title="Reply to this post"]')
				var postnum=postnumber.innerHTML
				var length=postnum.length/2|0
				if(postnum.slice(0,length)==postnum.slice(-length).split('').reverse().join('')){
					postnumber.classList.add('postpalindrome')
				}else if((postnum%100/10|0)==postnum%10){
					var b=postnum.length
					var c=0
					for(;b--;){
						c++
						if(postnum[b]!=postnum[b-1]){
							break
						}
					}
					var dubscolor=dubshigh(postnum,postnumber,c)
					if(postnum%1000==666){
						dubscolor.setAttribute('style','background:#000;color:#a00;text-shadow:0 0 2px #aa0;font-weight:bold')
					}
				}else if((postnum%100)==(postnum/100%100|0)){
					postnumber.classList.add('otherdubs')
					dubshigh(postnum,postnumber,4)
				}else if((postnum%100)==87){
					postnumber.classList.add('otherdubs')
					if((postnum%10000)==1987){
						var c=4
					}else{
						var c=2
					}
					dubshigh(postnum,postnumber,c)
				}else if((postnum%10000)==1337){
					postnumber.classList.add('otherdubs')
					dubshigh(postnum,postnumber,4)
				}
			}
			var texts=document.querySelectorAll('textarea:not(.betters4s)')
			for(var a=0;a<texts.length;a++){
				texts[a].classList.add('betters4s')
				texts[a].addEventListener('keydown',function(event){
					if(event.ctrlKey&&event.key=='q'){
						event.preventDefault()
						preview(event.target)
					}
				})
			}
			waiting=0
		},100)
	}
}

function updatepostsx(){
	var currenttime=+new Date
	var pasttime=replycache
	if(currenttime-100>pasttime){
		setTimeout(function(){
			if(pasttime==replycache){
				updatepostsx()
			}
		},100)
	}else{
		replycache=currenttime
		updateposts()
	}
}
var replycache=0

function dubshigh(postnum,postnumber,c){
	postnum+=''
	postnumber.innerHTML=postnum.slice(0,-c)
	var dubscolor=document.createElement('span')
	dubscolor.classList.add('dubshighlight')
	dubscolor.innerHTML=postnum.slice(-c)
	dubscolor.addEventListener('click',function(event){
		event.target.parentNode.click()
	})
	postnumber.appendChild(dubscolor)
	return dubscolor
}

function preview(textarea){
	var source=convert(0,0,textarea.value).replace(/&gt;&gt;(&gt;\/\w+\/\d*|\d+)/g,'<a>$&</a>')
	var previewcont=document.getElementById('previewcont')
	if(previewcont){
		previewcont.parentNode.removeChild(previewcont)
	}
	previewcont=document.createElement('div')
	previewcont.setAttribute('style','position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);cursor:pointer;z-index:20;display:flex;flex-direction:column;justify-content:center;align-items:center')
	previewcont.id='previewcont'
	previewcont.innerHTML='<div style="color:#800000;background-color:#f0e0d6;border:1px solid #d9bfb7;border-left:0;border-top:0;display:table;font:13px arial;width:500px"><input type="checkbox" style="cursor:pointer"><span style="color:#117743;font-weight:bold">Anonymous</span> --/--/--(---)--:--:-- No.-----<div style="margin:13px 40px">'+source+'</div></div>'
	document.body.appendChild(previewcont)
	previewcont.addEventListener('click',function(){
		document.body.removeChild(previewcont)
	})
}

var emotelist={
    doge:'5XD1CYW.png',
     kek:'lblY5Sn.png',
 checkem:'PwAtIwi.png',
   froge:'j8uUz62.png',
     lel:'1DfcjLb.png',
thinchin:'SwNA28g.png',
   ptree:'rUDbkXw.png',
   btree:'M2kjuLL.png',
  pktree:'GWepwsJ.png',
   rtree:'l5fKXY7.png',
    ruse:'8XBt7yF.png',
     mot:'IfMpxw1.png',
       a:'q8hHbwQ.gif',
       b:'03xYJTU.gif',
       c:'9UxS7ej.gif',
       d:'gJezGs5.gif',
       e:'J9df7FB.gif',
       f:'XgufMCh.gif',
       g:'BDKY6vy.gif',
       h:'JWRrUUO.gif',
       i:'gZLK7Dc.gif',
       j:'BiZ3dqk.gif',
       k:'15DDVOh.gif',
       l:'p0HyNUw.gif',
       m:'JX55XPt.gif',
       n:'XhUUK36.gif',
       o:'04fvVIM.gif',
       p:'TlWblXt.gif',
       q:'aEGHWjg.gif',
       r:'PD6x0Uh.gif',
       s:'wirH3pL.gif',
       t:'hsKlJrv.gif',
       u:'Xpf1VnM.gif',
       v:'g3INSef.gif',
       w:'cF6pbpj.gif',
       x:'UVbdagZ.gif',
       y:'2BJaMA3.gif',
       z:'itOUZ85.gif'
}
var totalemotecount=0
var protocol=location.protocol=='https:'?'https:':'http:'
var waiting=0

updateposts()
document.addEventListener('4chanParsingDone',updateposts)
document.addEventListener('PostsInserted',updatepostsx)

var newstyle=document.createElement('style')
newstyle.innerHTML='\
#previewcont a{color:#000080!important;text-decoration:underline}\
#previewcont li{list-style:disc}\
s{background-color:#000;text-decoration:none;color:transparent}\
s:hover{color:#fff}\
.quote{color:#789922}\
.redtext{color:red}\
.orangetext{color:darkorange}\
.yellowtext{color:#ffd800;text-shadow:0 0 2px #000}\
.greentext{color:#1fb211}\
.cyantext{color:lightseagreen}\
.bluetext{color:blue;font-family:monospace;font-weight:bold}\
.purpletext{color:purple;font-family:monospace;font-weight:bold}\
.pinktext{color:magenta}\
.blacktext{color:black;text-shadow:0 0 2px #fff}\
.whitetext{color:white;text-shadow:0 0 2px #000}\
.graytext{color:gray}\
.comictext{font-family:Comic Sans MS}\
.codetext{display:table;background:#fff;border:1px solid #bbb;color:#000;font-family:monospace;counter-reset:codecounter}\
.codetext div{counter-increment:codecounter;padding-right:4px}\
.codetext div::before{color:#808080;width:2.5em;background:#f0f0f0;display:inline-block;content:counter(codecounter);text-align:right;border-right:1px solid #bbb;padding-right:4px;margin-right:4px}\
s *{opacity:0}\
s:hover *{opacity:1}\
.rainbowspoiler{background:repeating-linear-gradient(90deg,#f00,#ff0,#0f0,#0ff,#00f,#f0f,#f00 200px) fixed!important;color:transparent!important;text-shadow:none}\
.rainbowspoiler:hover,.rainbowspoiler b{text-shadow:0 0 2px #000}\
.striketext{text-decoration:line-through}\
.flippedtext{display:inline-block;transform:rotate(180deg);-webkit-transform:rotate(180deg);padding-bottom:.25em}\
ul{margin:0;padding:0 0 0 1em}\
.postNum [href$="00"]+a,\
.postNum [href$="11"]+a,.postNum [href$="22"]+a,.postNum [href$="33"]+a,\
.postNum [href$="44"]+a,.postNum [href$="55"]+a,.postNum [href$="66"]+a,\
.postNum [href$="77"]+a,.postNum [href$="88"]+a,.postNum [href$="99"]+a\
{background:#ffa500}\
.dubshighlight{color:#000}\
.otherdubs{background:#ff0}\
.postpalindrome{background-color:#ff3232}\
'
document.head.appendChild(newstyle)