ace-code-editor/lib/ace/mode/_test/text_javascript.txt

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//test: tokenize 'standard' functions
string.charCodeAt(23); document.getElementById('test'); console.log('Here it is');";
test: /**tokenize doc*/ comment
/**tokenize doc comment with @tag {}*/
//test: tokenize parens
    var $line$ = "[{( )}]";
//test tokenize arithmetic expression which looks like a regexp
a/b/c
a/=b/c
//test tokenize reg exps
a=/b/g
a+/b/g
a = 1 + /2 + 1/gimyxk
a=/a/ / /a/
case /a/.test(c)
//test tokenize multi-line comment containing a single line comment
noRegex
/* foo // bar */
canBeRegex;
/* foo // bar */
// test tokenize identifier with umlauts
fu?e
// test // is not a regexp
{ // 123
//test skipping escaped chars
'Meh\\nNeh'
console.log('\\u1232Feh'
"test multiline\
 strings"
a='
b="\
still a string
 
 
function foo(items, nada) {
    for (var i=0; i<items.length; i++) {
        alert(items[i] + "juhu\n");
    }	// Real Tab.
}

regexp = /p|p/ // ends here

r = /d{1,2}?f{e}++r*?\d+?[]r[^r-o\f\f[\f]?r{7}+r\{7}+rr--rr$^(?:d|s)(?=a|)(?!y)[]|$?|^*/ o
a=/a/ jk = / / / / /
 /************************************/
/** total mess, tricky to highlight**/

function () {
	/**
	 * docComment
	 **/
	r = /u\t*/
	g = 1.00E^1, y = 1.2 + .2 + 052 + 0x25
	t = ['d', '']
}
function () {
	/* eee */
}

"s\
s\u7824sss\u1"

'\
string'

'
string'

"trailing space\   
"         "    /not a regexp/g

/**
 *doc
 */

a = {
	'a': b,
	'g': function(t)
	gta:function(a,b)
}

z>>=t<<f>>r>>>s>=0b1

foo.protoype.d = function(a, b,
                          c, d)
foo.d =function(a,     b)
foo.d =function(a,  /*****/ d"string"   

<div
z=<div {...this.props} x={1 + 2} y="z{a}b&amp;" t={
        1 + <a>{2}</a>
    }>
1 <a> { ++x  } </a>
</div>

var o = {
    t:`${[].map(x => {
        return x
    })}`
};