Tip: you can modify some code before running
Javascript highlights the code of the program code<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Jslib testing</title><style type="text/css">Pre {color: black;} span. hl_js_kw {color: blue; font-weight: bold;} span. hl_js_mcm {color: green;} span. hl_js_scm {color: gray;} span. hl_js_s {color: green;} span. hl_js_reg {color: red;} span. hl_js_num {color: red;} span. hl_js_typ {color: # 9900CC ;}</style><script type="text/javascript">Function $ (id) {return document. getElementById (id);} function btn_click () {var formats = []; formats [JSEngine. TYPE_KEYWORD] = {"start": "", "end": ""}; formats [JSEngine. TYPE_MUTILCOMMENT] = {"start": "", "end": ""}; formats [JSEngine. TYPE_SINGLECOMMENT] = {"start": "", "end": ""}; formats [JSEngine. TYPE_STRING] = {"start": "", "end": ""}; formats [JSEngine. TYPE_REGEXP] = {"start": "", "end": ""}; formats [JSEngine. TYPE_NUMBER] = {"start": "", "end": ""}; formats [JSEngine. TYPE_TYPES] = {"start": "", "end": ""}; var pre = $ ("codePre"); var area = $ ("codeArea "); var engine = new JSEngine (); var code = area. value. replace (/</g, "<").replace(/>/G, ">"); var dt = new Date (); str = engine. parseSyntax (code, formats); $ ("msg "). innerHTML = "total" + code. length + "characters, parsing flowers" + (new Date (). getTime ()-dt. getTime () + "ms"; str = str. replace (/^ (t +)/gm, function (m) {return (new Array (m. length + 1 )). join ("") ;}); str = str. replace (/^ (+)/gm, function (m) {return (new Array (m. length + 1 )). join ("") ;}); str = str. replace (/r? N/g ,"<br/>"); Pre. innerHTML = str;} window. onload = function () {$ ("btn "). onclick = btn_click ;} var keywords = "Array | arguments | Boolean | Date | Enumerator | Error | Function | Global | Math | Number | Object | RegExp | String | break | delete | function | return | typeof | case | do | if | switch | var | catch | else | in | this | void | continue | false | instanceof | throw | while | debugger | finally | new | true | with | default | for | null | try | abstract | double | goto | native | static | B Oolean | enum | implements | package | super | byte | export | import | private | synchronized | char | extends | int | protected | throws | class | final | interface | public | transient | const | float | long | short | volatile "; var types = "Anchor | Applet | Area | Arguments | Array | Boolean | Button | Checkbox | Collection | Crypto | Date | Dictionary | Document | Drive | Drives | Element | Enumerator | Event | file | FileObject | FileSystemObject | FileUpload | Folder | Folders | Form | Frame | Function | Global | Hidden | History | HTMLElement | Image | Infinity | Input | JavaArray | JavaClass | JavaObject | JavaPackage | JSObject | Layer | Link | Math | MimeType | Navigator | Number | object | Option | Packages | Password | Plugin | PrivilegeManager | Random | RegExp | Screen | Select | String | Submit | Text | Textarea | URL | VBArray | Window | WScript | window "; function JSEngine () {}; JSEngine. TYPE_KEYWORD = 0; JSEngine. TYPE_MUTILCOMMENT = 1; JSEngine. T YPE_SINGLECOMMENT = 2; JSEngine. TYPE_STRING = 3; JSEngine. TYPE_REGEXP = 4; JSEngine. TYPE_NUMBER = 5; JSEngine. TYPE_TYPES = 6; var _ p = JSEngine. prototype; var _ p = JSEngine. prototype; var _ p = JSEngine. prototype; _ p. parseSyntax = function (code, formats) {var buff = [], codeBuff = code, codeLen = code. length, sIdx = 0, buffIdx = 0, objBuff = []; var stopIdx = codeLen, searchResult = null, result = null, len = 0; var flgs = {"string1": true, "string2": true, "mutilcm": true, "singlecm": true, "regcm": true }; while (flgs ["string1"] | flgs ["string2"] | flgs ["mutilcm"] | flgs ["singlecm"] | flgs ["regcm"]) {searchResult = null; codeLen = code. length; stopIdx = codeLen; if (flgs ["string1"]) {result = searchString (code, codeLen, sIdx, stopIdx, "); switch (result) {case null: flgs ["string1"] = false; break; ca Se-1: break; default: {searchResult = result; searchResult [3] = JSEngine. TYPE_STRING; stopIdx = result [0]; break ;}}if (flgs ["string2"]) {result = searchString (code, codeLen, sIdx, stopIdx, "'"); switch (result) {case null: flgs ["string2"] = false; break; case-1: break; default: {searchResult = result; searchResult [3] = JSEngine. TYPE_STRING; stopIdx = result [0]; break ;}}if (flgs ["mutilcm"]) {result = sea RchMutilComments (code, codeLen, sIdx, stopIdx); switch (result) {case null: flgs ["mutilcm"] = false; break; case-1: break; default: {searchResult = result; searchResult [3] = JSEngine. TYPE_MUTILCOMMENT; stopIdx = result [0]; break ;}}if (flgs ["singlecm"]) {result = searchSingleComments (code, codeLen, sIdx, stopIdx ); switch (result) {case null: flgs ["singlecm"] = false; break; case-1: break; default: {search Result = result; searchResult [3] = JSEngine. TYPE_SINGLECOMMENT; stopIdx = result [0]; break ;}}if (flgs ["regcm"]) {result = searchRegexp (code, codeLen, sIdx, stopIdx ); switch (result) {case null: flgs ["regcm"] = false; break; case-1: break; default: {searchResult = result; searchResult [3] = JSEngine. TYPE_REGEXP; break ;}}if (searchResult = null) {buff. push (code); break;} else {/* len = searchResult [1]-se ArchResult [0] + searchResult [2]; if (searchResult [0]! = 0) {buff. push (code. substring (sIdx, searchResult [0])} buff. push ([code. substring (searchResult [0], searchResult [1] + searchResult [2]), searchResult [3]); sIdx = searchResult [1] + searchResult [2]; code = code. substr (sIdx); sIdx = 0; */len = searchResult [1]-searchResult [0] + searchResult [2]; if (searchResult [0]! = 0) {buff. push (code. substring (sIdx, searchResult [0])} objBuff. push ([code. substring (searchResult [0], searchResult [1] + searchResult [2]), searchResult [3]); buff. push ("<_" + (objBuff. length-1) + "_>"); sIdx = searchResult [1] + searchResult [2]; code = code. substr (sIdx); sIdx = 0 ;}// dt = new Date ();/* for (I = 0, len = buff. length; I <len; I ++) {if (typeof (buff [I]) = "string") {reg = new RegExp ("B (" + Keywords + ") B", "gm"); result = formats [JSEngine. TYPE_KEYWORD]. start + "$1" + formats [JSEngine. TYPE_KEYWORD]. end; buff [I] = buff [I]. replace (reg, result); reg = new RegExp ("B (" + types + ") B", "gm"); result = formats [JSEngine. TYPE_TYPES]. start + "$1" + formats [JSEngine. TYPE_TYPES]. end; buff [I] = buff [I]. replace (reg, result); reg =/B ([+-]? (? : D + (? :. D *)? (? : E [+-]? D + )? | 0x [dA-F] +) B/gim; result = formats [JSEngine. TYPE_NUMBER]. start + "$1" + formats [JSEngine. TYPE_NUMBER]. end; buff [I] = buff [I]. replace (reg, result);} else {buff [I] = ([formats [buff [I] [1]. start, buff [I] [0], formats [buff [I] [1]. end]). join ("") ;}} * // alert (new Date (). getTime ()-dt. getTime (); buff = buff. join (""); reg = new RegExp ("B (" + keywords + ") B", "g"); result = formats [JSEngine. TYPE_KEYWORD]. start + "$1" + formats [JSEngine. TYPE_KEYWORD]. end; buff = buff. replace (reg, result); reg = new RegExp ("B (" + types + ") B", "g"); result = formats [JSEngine. TYPE_TYPES]. start + "$1" + formats [JSEngine. TYPE_TYPES]. end; buff = buff. replace (reg, result); reg =/B ([+-]? (? : D + (? :. D *)? (? : E [+-]? D + )? | 0x [dA-F] +) B/gim; result = formats [JSEngine. TYPE_NUMBER]. start + "$1" + formats [JSEngine. TYPE_NUMBER]. end; buff = buff. replace (reg, result); buff = buff. replace (/<_ (d +) _>/g, function (m, n) {return formats [objBuff [n] [1]. start + objBuff [n] [0] + formats [objBuff [n] [1]. end ;}); // return buff. join (""); return buff;} function searchMutilComments (code, codeLen, sIdx, stopIdx) {var startIdx =-1, endIdx =-1; if (CodeLen <4) return null; startIdx = code. indexOf ("/*", sIdx); if (startIdx =-1) return null; if (startIdx> stopIdx) return-1; endIdx = code. indexOf ("*/", startIdx + 2); if (endIdx =-1) return null; return [startIdx, endIdx, 2];} function searchString (code, codeLen, sIdx, stopIdx, ch) {var at = sIdx, I = 0, isEscape = false, startIdx =-1, endIdx =-1, len = 0; var isMutilLine = false, fragments = Null, isContinueSearch = false, tCh = null, fragm = null, fragmLen = 0; if (codeLen <2) return null; while (true) {startIdx = code. indexOf (ch, at); if (startIdx =-1) return null; if (startIdx> stopIdx) return-1; if (startIdx> at) {I = startIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {at = startIdx + 1; if (at + 2)> stopIdx) return-1; continue ;}} break;} if (startIdx> stopIdx) return-1; at = startIdx + 1; lab_searchString: while (true) {endIdx = code. indexOf (ch, at); if (endIdx =-1) return null; if (endIdx> at) {I = endIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {at = endIdx + 1; continue ;}} break;} isMutilLine = code. indexOf ("n", startIdx + 1); if (isMutilLine! =-1 & isMutilLine <endIdx) {fragments = code. substring (startIdx + 1, endIdx ). split ("n"); len = fragments. length-1; for (I = 0; I <len; I ++) {fragm = fragments [I]; fragmLen = fragm. length; tCh = fragm. charCodeAt (fragmLen-1) = 13? Fragm. charAt (fragmLen-2): fragm. charAt (fragmLen-1); if (tCh! = "") {If (endIdx> stopIdx) return-1; if (endIdx + 1) = stopIdx) return-1; startIdx = endIdx; at = startIdx + 1; continue lab_searchString ;}} break;} return [startIdx, endIdx, 1];} function searchSingleComments (code, codeLen, sIdx, stopIdx) {var at = sIdx, I = 0, isEscape = false, startIdx =-1, endIdx =-1; if (codeLen <2) return null; while (true) {startIdx = code. indexOf ("//", at); if (startIdx =- 1) return null; if (startIdx> stopIdx) return-1; if (startIdx> at) {I = startIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {at = startIdx + 2; if (at + 3)> stopIdx) return-1; continue ;}} break;} endIdx = code. indexOf ("n", startIdx + 2); return [startIdx, endIdx =-1? Code. length: endIdx, 0];} function searchRegexp (code, codeLen, sIdx, stopIdx) {var at = sIdx, I = 0, isEscape = false, tmpResult = null, ch = null, endAt = 0, tmpStr = null; var startIdx =-1, tSIdx =-1, eStopIdx =-1, endIdx =-1, escapeFlg = "", bIdx =-1, eIdx =-1, bAt =-1, eAt =-1; function sEnd (code, startIdx) {var endIdx =-1, endAt = startIdx, I = 0, isEscape = false; while (true) {endIdx = Code. indexOf ("/", endAt); if (endIdx =-1) return-1; I = endIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {endAt = endIdx + 2; continue;} else {return endIdx ;}} if (codeLen <2) return null; while (true) {startIdx = code. indexOf ("/", at); if (startIdx =-1) return null; if (startIdx> stopIdx) return-1; switch (code. charAt (startIdx + 1) {case null: case "r": case "n": case "*": case "/": {at = startIdx + 2; if (at + 2)> stopIdx) return-1; continue ;}} if (startIdx> at) {I = startIdx, is Escape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {at = startIdx + 2; if (at + 3)> stopIdx) return-1; continue ;}} tmpResult = code. indexOf ("n", startIdx + 1); // different rows of eStopIdx = tmpResult =-1? CodeLen: tmpResult; tmpStr = code. substring (0, startIdx); if (! /(? :[! = (,: +-* % & | !~ [/N ;{}? Rn] | typeof | in | instanceof | void | new | return | do | else | throw | ^) [t] * $ /. test (tmpStr) {at = startIdx + 1; continue;} endAt = (code. charAt (startIdx + 1) = "["? 1: 2) + startIdx; endIdx = sEnd (code, endAt); if (endIdx =-1) return null; bAt = startIdx + 1; while (true) {bIdx = code. indexOf ("[", bAt); if (bIdx =-1) break; I = bIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {bAt = bIdx + 1; continue;} if (bIdx> endIdx) break; eAt = bIdx + 2; while (true) {eIdx = code. indexOf ("]", eAt); if (eIdx =-1) break; I = eIdx, isEscape = false; while (code. charAt (-- I) = "") isEscape =! IsEscape; if (isEscape) {eAt = eIdx + 1; continue;} if (eIdx> endIdx) {endAt = eIdx + 1; endIdx = sEnd (code, endAt ); if (endIdx =-1) return null;} bAt = eIdx + 1; break;} if (endIdx> eStopIdx) {at + = 1; continue;} break ;} return [startIdx, endIdx, 1];}</script></head><body><p id="msg">Enter the code to test it. If it is PHP output, use htmlspecialchars to encode it.</p><textarea id="codeArea" >// Test 1 function myfun (id) {/* this is mutilcomments "string" keyword: function */var str = "this is a string, /* fasasdf * // fdsasdf/^ reg/"; var reg =/^ fdadfasdf $/ig; return" myvalue "; // hahah} // test 2if (str. match (/(? :(? :[! = (,:] | [| N) [t] */$) | ^ n? [T] */$/) {} // test 3a = 1b = 2g = {test: function () {return 1} c = a // *** // B/g. test (); alert (c); // test 4 function t4 (test) {return (test /*/*//'"{; */& // */"'{; test &&"/*//"'{;"&&'/*//"'{; '& test) ;}// test 5var rexT5 =/[/] [+] ([Ss] *?) (? : [+] [/] | $) | [/] [/] (. *) | "((? : "| [^"]) *) "| '((? : '| [^']) *) '/G; // regular var nu = 1/2/3 // This is the division var str = "123 // 456 ". replace (/[/]/g, '') + 1/2/3; // commentvar o = [/re/, (/re/), typeof/re /, function () {return/re/}, 'O' in/re/, 1 // re /,! /Re/];
Tip: you can modify some code before running
