☰

Replace and highlight

Your own censor list for 4chan

  1. // ==UserScript==
  2. // @name Replace and highlight
  3. // @namespace wordreplace
  4. // @version 2015.08.21
  5. // @include *://boards.4chan.org/*
  6. // @grant unsafeWindow
  7. // @grant GM_getValue
  8. // @grant GM_setValue
  9. // @description Your own censor list for 4chan
  10. // ==/UserScript==
  11. 'use strict';
  12.  
  13. // Create element function
  14. function element(){
  15. 	var parent
  16. 	var toreturn={}
  17. 	for(var i=0;i<arguments.length;i++){
  18. 		var current=arguments[i]
  19. 		if(current.nodeType){
  20. 			parent=current
  21. 		}else{
  22. 			if(Array.isArray(current)){
  23. 				var tagname=current[0].split('#')
  24. 				var newtag=document.createElement(tagname[0])
  25. 				if(tagname[1]){
  26. 					toreturn[tagname[1]]=newtag
  27. 				}
  28. 				for(var j=1;j<current.length;j++){
  29. 					if(current[j].constructor==Object){
  30. 						for(var value in current[j]){
  31. 							if(value!='style'&&value in newtag){
  32. 								newtag[value]=current[j][value]
  33. 							}else{
  34. 								newtag.setAttribute(value,current[j][value])
  35. 							}
  36. 						}
  37. 					}else{
  38. 						var returned=element(newtag,current[j])
  39. 						for(var k in returned){
  40. 							toreturn[k]=returned[k]
  41. 						}
  42. 					}
  43. 				}
  44. 			}else{
  45. 				var newtag=document.createTextNode(current)
  46. 			}
  47. 			if(parent){
  48. 				parent.appendChild(newtag)
  49. 			}
  50. 		}
  51. 	}
  52. 	return toreturn
  53. }
  54.  
  55. //Update posts
  56. function updateposts(event){
  57. 	if(event){
  58. 		var replies=document.querySelectorAll('#t'+event.detail.threadId+' .postContainer:not(.wordreplace)')
  59. 	}else{
  60. 		var replies=document.querySelectorAll('.thread .postContainer:not(.wordreplace)')
  61. 	}
  62. 	if(replies.length){
  63. 		if(replies.length>200){
  64. 			var end=200
  65. 		}else{
  66. 			var end=replies.length
  67. 		}
  68. 		for(var i=0;i<end;i++){
  69. 			if(i==200){
  70. 				var j=0
  71. 			}else{
  72. 				var j=i
  73. 			}
  74. 			replies[j].classList.add('wordreplace')
  75. 			//Remove wbr tags
  76. 			if(thesettings.wrremwbr){
  77. 				var wbr=replies[j].getElementsByTagName('wbr')
  78. 				for(var k=wbr.length;k--;){
  79. 					var pre=wbr[k].previousSibling
  80. 					var nex=wbr[k].nextSibling
  81. 					if(pre&&nex&&pre.nodeType==3&&nex.nodeType==3){
  82. 						pre.nodeValue+=nex.nodeValue
  83. 						nex.parentNode.removeChild(nex)
  84. 					}
  85. 					wbr[k].parentNode.removeChild(wbr[k])
  86. 				}
  87. 			}
  88. 			//Replace and highlight
  89. 			wordreplacing(replies[j])
  90. 		}
  91. 	}
  92. }
  93.  
  94. //Add new settings
  95. function updatesettings(){
  96. 	setTimeout(function(){
  97. 		unsafeWindow.SettingsMenu.options['Replace and highlight']={
  98. 			wordreplace:['Replace and highlight words [<a href="javascript:wordreplace()">Edit</a>]','Your own censor list',1],
  99. 			wronlyin:['Instead of replacing everything, replace only in:','',1],
  100. 			wrbody:['Comment body','',1,1],
  101. 			wrsubject:['Subject','',1,1],
  102. 			wrfilename:['Filename','',1,1],
  103. 			wrposter:['Poster name','',0,1],
  104. 			wrtitle:['Page title','',1,1],
  105. 			wrremwbr:['Remove all &lt;wbr&gt; tags from the posts','&lt;wbr&gt; tags are inserted every 35 characters in long words, which may prevent some patterns from working',1],
  106. 			wrtooltip:['Reveal original line in a tooltip when hovered over','',0]
  107. 		}
  108. 		unsafeWindow.wordreplace=function(event,action){
  109. 			var norefresh=0
  110. 			var order={on:1,pattern:0,case:1,replace:0,js:1,caps:1,mark:1,board:0}
  111. 			if(!action){
  112. 				wr_temp=JSON.parse(JSON.stringify(wr_strings))
  113. 				var menu=element(
  114. 					document.body,
  115. 					['div',{
  116. 						class:'UIPanel',
  117. 						id:'wr-body',
  118. 						onclick:closepanel
  119. 					},
  120. 						['div',{
  121. 							class:'extPanel reply',
  122. 							style:'width:600px;margin-left:-300px'
  123. 						},
  124. 							['div',{
  125. 								class:'panelHeader'
  126. 							},
  127. 								'Replace and highlight words',
  128. 								['span',
  129. 									['img',{
  130. 										alt:'Close',
  131. 										title:'Close',
  132. 										class:'pointer',
  133. 										src:unsafeWindow.Main.icons.cross
  134. 									}]
  135. 								]
  136. 							],
  137. 							['table',{
  138. 								style:'text-align:center'
  139. 							},
  140. 								['thead',
  141. 									['tr',
  142. 										['th'],
  143. 										['th','On'],
  144. 										['th','Pattern'],
  145. 										['th','Case'],
  146. 										['th','Replace'],
  147. 										['th','JS'],
  148. 										['th','Caps'],
  149. 										['th','Mark'],
  150. 										['th','Board'],
  151. 										['th','Del']
  152. 									]
  153. 								],
  154. 								['tbody',{
  155. 									id:'wr-list'
  156. 								}],
  157. 							],
  158. 							['div',{
  159. 								style:'float:left'
  160. 							},
  161. 								['input',{
  162. 									type:'button',
  163. 									value:'Add',
  164. 									onclick:function(event){
  165. 										wordreplace(event,'add')
  166. 									}
  167. 								}],
  168. 								['input',{
  169. 									type:'button',
  170. 									value:'Import/Export',
  171. 									onclick:function(event){
  172. 										wordreplace(event,'port')
  173. 									}
  174. 								}]
  175. 							],
  176. 							['div',{
  177. 								style:'float:right'
  178. 							},
  179. 								['input',{
  180. 									type:'button',
  181. 									value:'Save',
  182. 									onclick:function(event){
  183. 										wordreplace(event,'save')
  184. 									}
  185. 								}],
  186. 								['input',{
  187. 									type:'button',
  188. 									value:'Save and close',
  189. 									onclick:function(event){
  190. 										wordreplace(event,'save')
  191. 										document.getElementById('wr-body').click()
  192. 									}
  193. 								}]
  194. 							],
  195. 							['table',{
  196. 								style:'width:100%'
  197. 							},
  198. 								['tr',{
  199. 									style:'vertical-align:top'
  200. 								},
  201. 									['td',
  202. 										['textarea#input',{
  203. 											id:'wr-input',
  204. 											paceholder:'Test it here',
  205. 											style:'width:280px;height:50px'
  206. 										}]
  207. 									],
  208. 									['td',{
  209. 										style:'vertical-align:top;text-align:left'
  210. 									},
  211. 										['div',{
  212. 											id:'wr-output',
  213. 											style:'width:294px;word-wrap:break-word;overflow:hidden'
  214. 										}]
  215. 									]
  216. 								]
  217. 							]
  218. 						],
  219. 						['style','\
  220. #wr-body input[type="text"],#wr-body .wr-replace{\
  221. font:13px monospace;\
  222. width:135px;\
  223. }\
  224. #wr-body .wr-board{\
  225. width:60px!important;\
  226. }\
  227. #wr-body textarea.wr-replace{\
  228. height:50px;\
  229. resize:none!important;\
  230. overflow:hidden;\
  231. cursor:text;\
  232. }\
  233. #wr-body [error],#wr-body .js{\
  234. vertical-align:top;\
  235. }\
  236. #wr-body [error]::after{\
  237. content:attr(error);\
  238. display:block;\
  239. position:absolute;\
  240. overflow:hidden;\
  241. left:0;\
  242. text-overflow:ellipsis;\
  243. width:100%;\
  244. white-space:nowrap;\
  245. margin-top:25px;\
  246. height:20px;\
  247. font-size:12px;\
  248. color:#d00\
  249. }\
  250. #wr-body [error] .wr-replace{\
  251. margin-bottom:20px!important;\
  252. }\
  253. #wr-body .js[error]::after{\
  254. margin-top:60px;\
  255. }']
  256. 					]
  257. 				)
  258. 				menu.input.onkeydown=menu.input.onkeyup=menu.input.onchange=menu.input.onclick=function(event){
  259. 					wordreplace(event,'type')
  260. 				}
  261. 			}
  262. 			var list=document.getElementById('wr-list')
  263. 			var trs=list.getElementsByTagName('tr')
  264. 			if(action!='imported'){
  265. 				for(var i=0;i<wr_temp.length;i++){
  266. 					if(trs[i]){
  267. 						for(var j in order){
  268. 							var input=trs[i].getElementsByClassName('wr-'+j)[0]
  269. 							if(order[j]){
  270. 								wr_temp[i][j]=input.checked
  271. 							}else{
  272. 								wr_temp[i][j]=input.value
  273. 							}
  274. 						}
  275. 					}
  276. 				}
  277. 			}
  278. 			switch(action){
  279. 				case 'add':{
  280. 					wr_temp.push({on:1,caps:1})
  281. 					break
  282. 				}
  283. 				case 'up':{
  284. 					var id=event.target.parentNode.parentNode.id.match(/filter-(\d+)/)[1]*1
  285. 					if(id>0){
  286. 						var temp=wr_temp[id]
  287. 						wr_temp[id]=wr_temp[id-1]
  288. 						wr_temp[id-1]=temp
  289. 					}else{
  290. 						norefresh=1
  291. 					}
  292. 					break
  293. 				}
  294. 				case 'del':{
  295. 					var id=event.target.parentNode.parentNode.id.match(/filter-(\d+)/)[1]*1
  296. 					wr_temp.splice(id,1)
  297. 					break
  298. 				}
  299. 				case 'save':{
  300. 					for(var i=wr_temp.length;i--;){
  301. 						if(!wr_temp[i].pattern&&!wr_temp[i].replace){
  302. 							wr_temp.splice(i,1)
  303. 						}
  304. 					}
  305. 					wr_strings=wr_temp.slice()
  306. 					GM_setValue('wordreplace',JSON.stringify(wr_temp))
  307. 					norefresh=1
  308. 					break
  309. 				}
  310. 				case 'type':
  311. 				case 'imported':{
  312. 					var input=document.getElementById('wr-input').value
  313. 					input=input.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/(&gt;&gt;\d+|&gt;&gt;&gt;\/\w+\/\d*)/g,'<a class="quotelink pointer">$1</a>').replace(/\n/g,'<br>').replace(/\[(\/)?spoiler\]/g,'<$1s>').replace(/^(&gt;[^\n]*)$/gm,'<span style="color:#789922">$1</span>')
  314. 					var output=document.getElementById('wr-output')
  315. 					output.innerHTML=input
  316. 					output.classList.remove('replacedtext')
  317. 					wordreplacing(output,1,wr_temp)
  318. 					if(action!='imported'&&!event.target.classList.contains('wr-js')){
  319. 						norefresh=1
  320. 					}
  321. 					break
  322. 				}
  323. 				case 'port':{
  324. 					var port=element(
  325. 						document.body,
  326. 						['div#panel',{
  327. 							class:'UIPanel',
  328. 							onclick:closepanel
  329. 						},
  330. 							['div',{
  331. 								class:'extPanel reply',
  332. 								style:'text-align:center'
  333. 							},
  334. 								['div',{
  335. 									class:'panelHeader'
  336. 								},
  337. 									'Import/Export patterns',
  338. 									['span',
  339. 										['img',{
  340. 											alt:'Close',
  341. 											title:'Close',
  342. 											class:'pointer',
  343. 											src:unsafeWindow.Main.icons.cross
  344. 										}]
  345. 									]
  346. 								],
  347. 								['textarea#txt',{
  348. 									style:'width:100%;height:100px;box-sizing:border-box',
  349. 									value:JSON.stringify(wr_temp)
  350. 								}],
  351. 								['div',{
  352. 									style:'float:left'
  353. 								},
  354. 								 	['input',{
  355. 										type:'button',
  356. 										value:'Save to file',
  357. 										onclick:function(){
  358. 											var txt=port.txt.value
  359. 											txt=btoa(encodeURIComponent(txt).replace(/%([0-9A-F]{2})/g,function(a,b){
  360. 												return String.fromCharCode('0x'+b)
  361. 											}))
  362. 											element(
  363. 												['a#link',{
  364. 													href:'data:application/json;base64,'+txt,
  365. 													download:'wordreplace.json'
  366. 												}]
  367. 											).link.click()
  368. 										}
  369. 									}],
  370. 									['input',{
  371. 										type:'button',
  372. 										value:'Load from file',
  373. 										onclick:function(){
  374. 											port.file.click()
  375. 										}
  376. 									}],
  377. 								],
  378. 								['div',{
  379. 									style:'float:right'
  380. 								},
  381. 									['input',{
  382. 										type:'button',
  383. 										value:'Replace all',
  384. 										onclick:function(event){
  385. 											var temp
  386. 											try{
  387. 												temp=fromimport(JSON.parse(port.txt.value))
  388. 											}catch(e){
  389. 												alert('This is not a valid JSON')
  390. 											}
  391. 											if(temp){
  392. 												wr_temp=temp
  393. 												wordreplace(event,'imported',1)
  394. 												port.panel.click()
  395. 											}
  396. 										}
  397. 									}],
  398. 									['input',{
  399. 										type:'button',
  400. 										value:'Import and append',
  401. 										onclick:function(event){
  402. 											var temp
  403. 											try{
  404. 												temp=fromimport(JSON.parse(port.txt.value))
  405. 											}catch(e){
  406. 												alert('This is not a valid JSON')
  407. 											}
  408. 											if(temp){
  409. 												wr_temp=wr_temp.concat(temp)
  410. 												wordreplace(event,'type',1)
  411. 												port.panel.click()
  412. 											}
  413. 										}
  414. 									}]
  415. 								],
  416. 								['form',
  417. 									['input#file',{
  418. 										type:'file',
  419. 										style:'display:none',								
  420. 										onchange:function(event){
  421. 											if(event.target.files.length){
  422. 												var reader=new FileReader()
  423. 												reader.onload=function(read){
  424. 													port.txt.value=read.target.result
  425. 													event.target.parentNode.reset()
  426. 												}
  427. 												reader.readAsText(event.target.files[0])
  428. 											}
  429. 										}
  430. 									}]
  431. 								]
  432. 							]
  433. 						]
  434. 					)
  435. 					norefresh=1
  436. 					break
  437. 				}
  438. 				case 'editjs':{
  439. 					var target=event.target
  440. 					var editor=element(
  441. 						document.body,
  442. 						['div',{
  443. 							class:'UIPanel',
  444. 							id:'wr-body',
  445. 							onclick:function(event){
  446. 								if(event.target.className=='UIPanel'||event.target.tagName=='IMG'){
  447. 									target.value=editor.txt.value
  448. 									closepanel(event)
  449. 									wordreplace(event,'type')
  450. 								}
  451. 							}
  452. 						},
  453. 							['div',{
  454. 								class:'extPanel reply',
  455. 								style:'width:600px;margin-left:-300px'
  456. 							},
  457. 								['div',{
  458. 									class:'panelHeader'
  459. 								},
  460. 									'Edit function',
  461. 									['span',
  462. 										['img',{
  463. 											alt:'Close',
  464. 											title:'Close',
  465. 											class:'pointer',
  466. 											src:unsafeWindow.Main.icons.cross
  467. 										}]
  468. 									]
  469. 								],
  470. 								['textarea#txt',{
  471. 									value:target.value,
  472. 									onkeydown:function(event){
  473. 										if(event.keyCode==9){ //Tab
  474. 											event.preventDefault()
  475. 											var input=event.target
  476. 											var start=input.selectionStart
  477. 											input.value=input.value.slice(0,start)+'\t'+input.value.slice(input.selectionEnd)
  478. 											input.setSelectionRange(start+1,start+1)
  479. 										}
  480. 									},
  481. 									style:'width:100%;height:500px;box-sizing:border-box;font:13px monospace'
  482. 								}]
  483. 							]
  484. 						]
  485. 					)
  486. 					editor.txt.setSelectionRange(0,0)
  487. 					norefresh=1
  488. 					break
  489. 				}
  490. 			}
  491. 			if(!norefresh){
  492. 				list.innerHTML=''
  493. 				if(!wr_temp.length){
  494. 					wr_temp=[{on:1,caps:1}]
  495. 				}
  496. 				for(var i in wr_temp){
  497. 					var table=element(
  498. 						list,
  499. 						['tr#tr',{
  500. 							id:'filter-'+i
  501. 						},
  502. 							['td',
  503. 								['span',{
  504. 									class:'pointer',
  505. 									onclick:function(event){
  506. 										wordreplace(event,'up')
  507. 									}
  508. 								},'\u2191']
  509. 							]
  510. 						]
  511. 					)
  512. 					for(var j in order){
  513. 						var tagname='input'
  514. 						var js=j=='replace'&&wr_temp[i].js
  515. 						if(js){
  516. 							tagname='textarea'
  517. 						}
  518. 						var td=element(
  519. 							table.tr,
  520. 							['td',
  521. 								[tagname+'#input',{
  522. 									class:'wr-'+j,
  523. 									onchange:function(event){
  524. 										wordreplace(event,'type')
  525. 									}
  526. 								}]
  527. 							]
  528. 						)
  529. 						if(order[j]){
  530. 							td.input.type='checkbox'
  531. 							if(j=='on'&&wr_temp[i][j]==undefined){
  532. 								td.input.checked=1
  533. 							}else{
  534. 								td.input.checked=wr_temp[i][j]
  535. 							}
  536. 						}else{
  537. 							if(js){
  538. 								table.tr.classList.add('js')
  539. 								td.input.readOnly=1
  540. 								td.input.onclick=function(event){
  541. 									wordreplace(event,'editjs')
  542. 								}
  543. 							}else{
  544. 								td.input.type='text'
  545. 							}
  546. 							td.input.value=wr_temp[i][j]||''
  547. 						}
  548. 					}
  549. 					element(
  550. 						table.tr,
  551. 						['td',
  552. 							['span',{
  553. 								class:'pointer',
  554. 								onclick:function(event){
  555. 									wordreplace(event,'del')
  556. 								}
  557. 							},'\xD7']
  558. 						]
  559. 					)
  560. 				}
  561. 			}
  562. 			for(var i in wr_temp){
  563. 				var errors=[]
  564. 				try{
  565. 					var a=RegExp(wr_temp[i].pattern)
  566. 				}catch(e){
  567. 					errors.push('Error in regex: '+e.message.replace(/.*:.*: /,''))
  568. 				}
  569. 				if(wr_temp[i].js){
  570. 					try{
  571. 						eval('!function(){'+wr_temp[i].replace+'}')
  572. 					}catch(e){
  573. 						errors.push('Error in function: '+e.message)
  574. 					}
  575. 				}
  576. 				if(errors.length){
  577. 					document.getElementById('filter-'+i).setAttribute('error',errors.join(' | '))
  578. 				}else{
  579. 					document.getElementById('filter-'+i).removeAttribute('error')
  580. 				}
  581. 			}
  582. 		}
  583. 	},1000)
  584. }
  585. function closepanel(event){
  586. 	if(event.target.className=='UIPanel'){
  587. 		event.target.parentNode.removeChild(event.target)
  588. 	}
  589. 	if(event.target.tagName=='IMG'){
  590. 		var target=event.target.parentNode.parentNode.parentNode.parentNode
  591. 		target.parentNode.removeChild(target)
  592. 	}
  593. }
  594. function fromimport(json){
  595. 	var order={on:1,pattern:0,case:1,replace:0,js:1,caps:1,mark:1,board:0}
  596. 	try{
  597. 		if(json.patterns){
  598. 			json=json.patterns
  599. 		}
  600. 		var temp=[]
  601. 		for(var i in json){
  602. 			temp[i]={}
  603. 			for(var j in order){
  604. 				if(json[i][j]==undefined){
  605. 					if(j=='on'||j=='caps'){
  606. 						temp[i][j]=1
  607. 					}else{
  608. 						if(order[j]){
  609. 							temp[i][j]=0
  610. 						}else{
  611. 							temp[i][j]=''
  612. 						}
  613. 					}
  614. 				}else{
  615. 					temp[i][j]=json[i][j]
  616. 				}
  617. 			}
  618. 		}
  619. 		return temp
  620. 	}catch(e){
  621. 		alert('This JSON cannot be imported because it is corrupt')
  622. 		console.log(e.message)
  623. 	}
  624. }
  625.  
  626. //Word replace
  627. function wordreplacing(post,main,strings){
  628. 	if(!post||!post.classList){
  629. 		return
  630. 	}
  631. 	if(post.classList.contains('replacedtext')){
  632. 		return
  633. 	}
  634. 	post.classList.add('replacedtext')
  635. 	if(main){
  636. 		var comments=[post]
  637. 	}else{
  638. 		var props=[]
  639. 		if(thesettings.wronlyin){
  640. 			if(thesettings.wrbody){
  641. 				props.push('blockquote')
  642. 			}
  643. 			if(thesettings.wrsubject){
  644. 				props.push('.subject')
  645. 			}
  646. 			if(thesettings.wrfilename){
  647. 				props.push('.fileText>a')
  648. 			}
  649. 			if(thesettings.wrposter){
  650. 				props.push('.nameBlock')
  651. 			}
  652. 		}else{
  653. 			props=['.nameBlock','.fileText>a','.subject','blockquote']
  654. 		}
  655. 		if(!props.length){
  656. 			return
  657. 		}
  658. 		var comments=post.querySelectorAll(props.join(','))
  659. 	}
  660. 	for(var i=0;i<comments.length;i++){
  661. 		var textnodes=[]
  662. 		var walk=document.createTreeWalker(comments[i],4,null,0)
  663. 		var newnode
  664. 		while(newnode=walk.nextNode()){
  665. 			textnodes.push(newnode)
  666. 		}
  667. 		for(var j in textnodes){
  668. 			var currentnode=textnodes[j]
  669. 			var out=teststring(currentnode.nodeValue.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'),strings)
  670. 			if(out!=null){
  671. 				if(thesettings.wrtooltip||/[<>]/.test(out)){
  672. 					var newspan=element(
  673. 						['span#span',{
  674. 							innerHTML:out
  675. 						}]
  676. 					)
  677. 					if(thesettings.wrtooltip){
  678. 						newspan.span.title=currentnode.nodeValue
  679. 					}
  680. 					currentnode.parentNode.insertBefore(newspan.span,currentnode)
  681. 					currentnode.parentNode.removeChild(currentnode)
  682. 				}else{
  683. 					currentnode.nodeValue=out.replace(/&gt;/g,'>').replace(/&lt;/g,'<').replace(/&amp;/g,'&')
  684. 				}
  685. 			}
  686. 		}
  687. 	}
  688. }
  689. function teststring(text,replaces){
  690. 	if(text.length){
  691. 		var oldtext=text
  692. 		if(replaces){
  693. 			var patterns=replaces
  694. 		}else{
  695. 			var patterns=wr_strings
  696. 		}
  697. 		for(var i in patterns){
  698. 			try{
  699. 				if(
  700. 					patterns[i].on&&
  701. 					patterns[i].pattern&&(
  702. 						!patterns[i].board||
  703. 						patterns[i].board.toLowerCase().replace(/[,;]/g,' ').replace(/[^a-z\d\s]/g,'').trim().split(/\s+/).indexOf(currentboard)+1
  704. 					)
  705. 				){
  706. 					var replacewith=patterns[i].replace+''
  707. 					if(patterns[i].js){
  708. 						replacewith=function(){
  709. 							return eval('(function(){'+patterns[i].replace+'}).apply(undefined,arguments)')
  710. 						}
  711. 					}else if(patterns[i].mark){
  712. 						replacewith='<span class="highlighttext">'+(replacewith||'$&')+'</span>'
  713. 					}
  714. 					if(patterns[i].caps){
  715. 						var replacestring=replacewith
  716. 						replacewith=function(){
  717. 							if(patterns[i].js){
  718. 								var returned=replacestring.apply(undefined,arguments)
  719. 								var s=[returned,arguments[0]]
  720. 							}else{
  721. 								var args=arguments
  722. 								var s=[replacestring,args[0]]
  723. 								s[0]=s[0].replace(/\$&/g,'$$0').replace(/\$(\d+)/g,function(){
  724. 									var num=arguments[1]*1
  725. 									return args[num]||''
  726. 								})
  727. 							}
  728. 							var al=s[0].length
  729. 							var bl=s[1].length
  730. 							if(al>bl){
  731. 								var l=bl
  732. 							}else{
  733. 								var l=al
  734. 							}
  735. 							if(l<2){
  736. 								return s[0]
  737. 							}
  738. 							s=s.map(function(a){
  739. 								return [a.slice(0,l-l/2),a.slice(l-l/2,-l/2),a.slice(-l/2)]
  740. 							})
  741. 							for(var j=0;j<3;j+=2){
  742. 								s[0][j]=s[0][j].toLowerCase().split('')
  743. 								for(var k=0;k<s[0][j].length;k++){
  744. 									var c=s[1][j][k]
  745. 									if(c==c.toUpperCase()&&c!=c.toLowerCase()){
  746. 										s[0][j][k]=s[0][j][k].toUpperCase()
  747. 									}
  748. 								}
  749. 								s[0][j]=s[0][j].join('')
  750. 							}
  751. 							if(s[0][1]){
  752. 								var u=0
  753. 								if(s[1][1]){
  754. 									var c=s[1][1]
  755. 									if(c==c.toUpperCase()&&c!=c.toLowerCase()){
  756. 										u=2
  757. 									}
  758. 								}else{
  759. 									var c=s[1][0][(l/2|0)-1]
  760. 									if(c==c.toUpperCase()){
  761. 										u++
  762. 									}
  763. 									var c=s[1][2][0]
  764. 									if(c==c.toUpperCase()){
  765. 										u++
  766. 									}
  767. 								}
  768. 								if(u==2){
  769. 									s[0][1]=s[0][1].toUpperCase()
  770. 								}
  771. 							}
  772. 							return s[0].join('')
  773. 						}
  774. 					}else if(!patterns[i].js){
  775. 						replacewith=replacewith.replace(/\$0/g,'$$&')
  776. 					}
  777. 					var ig=patterns[i].case?'g':'ig'
  778. 					text=text.replace(new RegExp(patterns[i].pattern,ig),replacewith)
  779. 				}
  780. 			}catch(e){
  781. 				if(!replaces){
  782. 					wr_strings[i].on=0
  783. 				}
  784. 				console.error('Error in regex: '+patterns[i].pattern,',',e.message)
  785. 			}
  786. 		}
  787. 		if(oldtext!=text){
  788. 			return text
  789. 		}else{
  790. 			return null
  791. 		}
  792. 	}else{
  793. 		return null
  794. 	}
  795. }
  796.  
  797. if(document.getElementsByTagName('meta').length){
  798. 	//Get settings
  799. 	var thesettings=localStorage['4chan-settings']
  800. 	var thedefault='wordreplace wronlyin wrbody wrsubject wrfilename wrtitle wrremwbr'.split(' ')
  801. 	if(thesettings){
  802. 		thesettings=JSON.parse(thesettings)
  803. 		var changed=0
  804. 		for(var i in thedefault){
  805. 			if(thesettings[thedefault[i]]==undefined){
  806. 				thesettings[thedefault[i]]=true
  807. 				changed=1
  808. 			}
  809. 		}
  810. 		if(changed){
  811. 			localStorage['4chan-settings']=JSON.stringify(thesettings)
  812. 		}
  813. 	}else{
  814. 		thesettings={}
  815. 		var gmsetting=GM_getValue('wordreplace')
  816. 		if(gmsetting){
  817. 			thesettings.wordreplace=gmsetting=='true'?1:0
  818. 		}
  819. 	}
  820. 	//Determine current page format, board name, and thread id
  821. 	if(document.body.classList.contains('is_index')){
  822. 		var activepage='index'
  823. 	}else if(document.getElementById('content')){
  824. 		var activepage='catalog'
  825. 	}else if(location.pathname.indexOf('/thread/')+1){
  826. 		var activepage='thread'
  827. 	}else{
  828. 		var activepage='main'
  829. 	}
  830. 	var currentboard=''
  831. 	var match=document.body.classList[0]
  832. 	if(match){
  833. 		match=match.match(/^board_(\w+)$/)
  834. 		if(match){
  835. 			var currentboard=match[1]
  836. 		}else if(activepage!='main'){
  837. 			match=location.pathname.match(/^\/(\w+)\//)
  838. 			if(match){
  839. 				var currentboard=match[1]
  840. 			}
  841. 		}
  842. 	}
  843. 	//Retrieve pattern list
  844. 	var wr_strings=GM_getValue('wordreplace')
  845. 	if(wr_strings){
  846. 		wr_strings=JSON.parse(wr_strings)
  847. 	}else{
  848. 		wr_strings=[
  849. 			{
  850. 				on:1,
  851. 				pattern:'newfag',
  852. 				case:0,
  853. 				replace:'newfig',
  854. 				js:0,
  855. 				caps:1,
  856. 				mark:0,
  857. 				board:'s4s'
  858. 			},
  859. 			{
  860. 				on:1,
  861. 				pattern:'shitpost',
  862. 				case:0,
  863. 				replace:'funpost',
  864. 				js:0,
  865. 				caps:1,
  866. 				mark:0,
  867. 				board:'s4s'
  868. 			}
  869. 		]
  870. 	}
  871. 	var wr_temp
  872. 	if(thesettings.wordreplace&&(thesettings.wrtitle||!thesettings.wronlyin)){
  873. 		var newtitle=teststring(document.title.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'))
  874. 		if(newtitle!=null){
  875. 			document.title=newtitle.replace(/[\r\n]/g,'').replace(/<[^>]*>/g,'').replace(/&gt;/g,'>').replace(/&lt;/g,'<').replace(/&amp;/g,'&')
  876. 		}
  877. 	}
  878. 	if(activepage=='index'||activepage=='thread'){
  879. 		if(thesettings.wordreplace){
  880. 			updateposts()
  881. 			document.addEventListener('4chanParsingDone',updateposts)
  882. 		}
  883. 		if(unsafeWindow.Main){
  884. 			updatesettings()
  885. 		}else{
  886. 			document.addEventListener('4chanMainInit',updatesettings)
  887. 		}
  888. 	}
  889. 	if(activepage=='catalog'&&thesettings.wordreplace){
  890. 		for(var i in unsafeWindow.catalog.threads){
  891. 			var props=[]
  892. 			if(thesettings.wronlyin){
  893. 				if(thesettings.wrbody){
  894. 					props.push('teaser')
  895. 				}
  896. 				if(thesettings.wrsubject){
  897. 					props.push('sub')
  898. 				}
  899. 				if(thesettings.wrfilename){
  900. 					props.push('file')
  901. 				}
  902. 				if(thesettings.wrposter){
  903. 					props.push('author')
  904. 				}
  905. 			}else{
  906. 				props=['author','file','sub','teaser']
  907. 			}
  908. 			props.forEach(function(prop){
  909. 				var out=teststring(unsafeWindow.catalog.threads[i][prop])
  910. 				if(out!=null){
  911. 					unsafeWindow.catalog.threads[i][prop]=out
  912. 				}
  913. 				if(prop=='author'&&unsafeWindow.catalog.threads[i].lr.author){
  914. 					var out=teststring(unsafeWindow.catalog.threads[i].lr.author)
  915. 					if(out!=null){
  916. 						unsafeWindow.catalog.threads[i].lr.author=out
  917. 					}
  918. 				}
  919. 			})
  920. 		}
  921. 		document.getElementById('size-ctrl').dispatchEvent(new Event('change'))
  922. 	}
  923. }