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 #! shebang
 #! no-shebang
 
 <beginfold id='1'>/*</beginfold id='1'> comment <endfold id='1'>*/</endfold id='1'>
 
 function fun()
 <beginfold id='2'>{</beginfold id='2'>
     var boo = <beginfold id='2'>{</beginfold id='2'> 'key': <beginfold id='3'>[</beginfold id='3'> 1, 2.0, 3.0e1, 004, 0x5 <endfold id='3'>]</endfold id='3'> <endfold id='2'>}</endfold id='2'>;
 <endfold id='2'>}</endfold id='2'>
 
 class MyClass; // reserved keywords
 
 // Member objects: text after "."
 object.property instanceof Number;
 iden1.iden2  . iden3.class class;
 
 var escapes = "aa\b\n\0a\"a\x12a\32a\u{123}a\$\%\ \#\y\aaa\
 aaa";
 var octal = 0o124;
 var bin = 0b1010;
 
 日本語().ლಠ益ಠლ.ñá = 42;
 δ /No-Regex/
 
 // Only highlight valid regular expressions, of a single line, after strings
 // See: https://github.com/microsoft/TypeScript-TmLanguage/issues/786
 "text" /No-Regex
 "text" /Regex[:)]*/;
 const a = "6" / 2; <beginfold id='1'>/*</beginfold id='1'>comment<endfold id='1'>*/</endfold id='1'> const b = 5;
 console.log("4" / "2"); // 2
 // Single quote
 const a = '6' / 2; <beginfold id='1'>/*</beginfold id='1'>comment<endfold id='1'>*/</endfold id='1'> const b = 5;
 console.log('4' / '2'); // 2
 // Template
 const a = <beginfold id='4'>`</beginfold id='4'>6<endfold id='4'>`</endfold id='4'> / 2; <beginfold id='1'>/*</beginfold id='1'>comment<endfold id='1'>*/</endfold id='1'> const b = 5;
 console.log(<beginfold id='4'>`</beginfold id='4'>4<endfold id='4'>`</endfold id='4'> / <beginfold id='4'>`</beginfold id='4'>2<endfold id='4'>`</endfold id='4'>); // 2
 
 // Built-in
 const os = require('os');
 JSON.stringify("hello");
 console.error("hello");
 Math.LOG10E;
 Number.MAX_SAFE_INTEGER;
 String.raw<beginfold id='4'>`</beginfold id='4'>raw text \.\n${}<endfold id='4'>`</endfold id='4'>
 
 // Tagged template literals
 tagFunc<beginfold id='4'>`</beginfold id='4'>
     Hello world!
     ${ alert("Hello!"); }<endfold id='4'>`</endfold id='4'>;
 obj.something.tagFunc<beginfold id='4'>`</beginfold id='4'>Setting ${setting} is ${value + 5}!<endfold id='4'>`</endfold id='4'>;
 
 <beginfold id='1'>/*</beginfold id='1'> 
    NOTE: The words "todo", "fixme" and "note" should be rendered in a different style
    within comments, match should be caseless (to test for regexp insensitive attribute).
    The regex used for this rule is <endfold id='1'>*/</endfold id='1'>
    String = /\b(?:fixme|todo|note)\b/
    <beginfold id='1'>/*</beginfold id='1'> Thus,  for example "Notebook" is not caught by
    this rule. (the "?:" in the subpattern is there to avoid the regex engine wasting time
    saving a backref, which is not used for anything. I do not know if the overhead of parsing
    that is greater than the time saved by not capturing the text...)
    The rule for catching these words is placed in a context "Comment common", which is used
    by both comment contexts (single line, multiline) using the new "IncludeRules" item.
 <endfold id='1'>*/</endfold id='1'>
 
 // test if regex support works - nice with new fallthrough prop in context:)
 somestring.replace( /dooh/ , "bah!");
 re=/foo/ig; // hehe
 
 somestring.search(
        /^foo\w+\s\d{0,15}$/
                   );
 
         re =
         /dooh/;
 
 // This is supposedly legal:
 re = somebool ? /foo/ : /bar/;
 
 // NOTE - Special case: an empty regex, not a comment.
 // The rule uses a positive lookahead assertion to catch it: "//(?=;)".
 re = //;
 re = /a|b/;
 
 <beginfold id='1'>/*</beginfold id='1'>
    Tests for the regex parser.
    It will parse classes, quanitfiers, special characters and regex operaters,
    as specified in the netscape documentation for javascript.
    Regexps are only parsed in their clean form, as the RegExp(string) constructor
    is using a quoted string.
    TODO: Find out if more regex feats should be supported.
          Consider using more itemDatas - assertion, quantifier are options.
 <endfold id='1'>*/</endfold id='1'>
 
 re = /^text\s+\d+\s*$/;
 re = /a pattern with caret \(^\) in it/;
 re = /(\d{0,4})\D/;
 re = /[a-zA-Z_]+/;
 re = /[^\d^]+/;
 re = /\s+?\w+\.$/;
 re = /\/\//;
 re = /a|b/;
 
 // the following are not regexps in E4X (=xml embedded into JavaScript)
 var p = <p>Hello World</p>
 var p = /</
 var p = />/
 
 // a test if #pop back from a comment will work
 re = <beginfold id='1'>/*</beginfold id='1'>/foo/<endfold id='1'>*/</endfold id='1'> /bar/;
 //           ^ POP
 //             ^ we got back after pop in comment, if there is regexp attribs here :-)
 
 <beginfold id='1'>/*</beginfold id='1'>
    Some tests if the fallthrough works.
    The fallthrough happens if a regexp is not found in a possible (!) position,
    which is after "search(" or "replace(" or "=" or "?" or ":" in version 0.1 of the xml file
 <endfold id='1'>*/</endfold id='1'>
 
 var foo = 'bar';
 //        ^ fallthrough!
 
 
 somestring.replace( new RegExp("\\b\\w+\\b"), "word: $1");
 //                  ^ fallthrough expected. ("new" whould be bold)
 
 
 something.method =
     function ( a, b, c ) <beginfold id='2'>{</beginfold id='2'> <beginfold id='1'>/*</beginfold id='1'> ... <endfold id='1'>*/</endfold id='1'> <endfold id='2'>}</endfold id='2'>
 //  ^ fallthrough ?!
 
 something.other =
 function ( d, e, f ) <beginfold id='2'>{</beginfold id='2'> <beginfold id='1'>/*</beginfold id='1'> ... <endfold id='1'>*/</endfold id='1'> <endfold id='2'>}</endfold id='2'>
 // fallthrough expected at col 0 ("function" should be bold)
 
 var ary = new Array(5);
 //        ^ fallthrough ? (if keyword is correctly rendered)
 
 var b = a ? 1 : 0;
 //          ^   ^ fallthroughs. numbers must be rendered correctly.
 
 var c = d ? true : false;
 
 var conditinalstring = b ?
   "something" :
   "something else";
 // guess...
 
 
 <beginfold id='1'>/*</beginfold id='1'>
    Normal program flow...
 <endfold id='1'>*/</endfold id='1'>
 
 if (something)
   dostuff();
 else
   dont();
 
   return;
 
 try <beginfold id='2'>{</beginfold id='2'> bla() <endfold id='2'>}</endfold id='2'> catch (e) <beginfold id='2'>{</beginfold id='2'> alert("ERROR! : " + e) <endfold id='2'>}</endfold id='2'>
 
 for (int i=0; i < j; i++)
   document.write("i is" + i + "<br>");
 
 while (something)
 <beginfold id='2'>{</beginfold id='2'>
   block();
   picky:
     if (!1)
       break;
     else
       continue;
 <endfold id='2'>}</endfold id='2'>
 
 with (a) <beginfold id='2'>{</beginfold id='2'>
   do <beginfold id='2'>{</beginfold id='2'>
     stuff( b ); // a.b if it exists
   <endfold id='2'>}</endfold id='2'> while (itmakessense);
 <endfold id='2'>}</endfold id='2'>
 
 switch (i) <beginfold id='2'>{</beginfold id='2'>
   case 0:
   f();
   break;
   default:
   break;
 <endfold id='2'>}</endfold id='2'>
 
 // Numerics
 var a = 0xA;
 var b = 0b1;
 var c = 0o7;
 var c = 07;
 var c = 08;
 var d = 1.1E+3;
 var e = 1.E+3;
 var f = .1E+3;
 var g = 1E+3;
 var h = 1.1;
 var i = 1.;
 var j = .1;
 var k =  1;
 // Bigint
 const binBig = 0b101n;
 const octBig = 0o567n;
 const hexBig = 0xC0Bn;
 const decBig = 123n;
 // Invalid numbers
 var l = 0xA1t;
 var m = 0b0123;
 var n = 0o29;
 var n = 000_7;
 // Number with separator
 let a = 0xA_b_1
 let a = 0xA_b_1n
 let a = 0xA_b_1_
 let a = 0xA_b__1
 let b = 0o1_2_3
 let b = 0o1_2_3n
 let b = 0o1_2_3_
 let b = 0o1_2__3
 let b = 0o1_2_38
 let b = 01_2_3
 let b = 01_2_3n
 let b = 01_2_3_
 let b = 01_2__3
 let c = 0b0_1_1
 let c = 0b0_1_1n
 let c = 0b0_1_1_
 let c = 0b0_1__1
 let d = 1_2_3
 let d = 1_2_3n
 let d = 1_2_3_
 let d = 1_2__3
 let d = 01_2_8