How to search regex only outside curly brackets

Question

I have this regex variable:

var regexp = new RegExp(RegExp.quote(myExpression) + \'\\\\b\', \'g\');

which searches for expression that has a sp

Answer 1

Something like this problem of matching nested brackets is not possible to solve using a single regex. Here is my take to resolve your problem:

var myExpression = "cat";
var s = 'the cat {is cat { and} cat {and { another cat}}and  cat } and another cat';
arr = s.split(/(?=(?:\b|\W))\s*/g);
document.writeln("
split: " + arr + "
");
//prints: the,cat,{,is,cat,{,and,},cat,{,and,{,another,cat,},},and,cat,},and,another,cat
var level=0;
for (i=0; iMatched: " + arr[i] + "

"); if (arr[i] == "{") level++; else if (arr[i] == "}") level--; }