var console = {};
console.log = function(x) {
	print(x);
}
 
 
function doMatch(str1) {
  var regex1 = /<[^<>]*>/g;
  var array1;
  var nextPos = 0;
  var ret = [];
 
  while ((array1 = regex1.exec(str1)) !== null) {
    var matchStart = regex1.lastIndex - array1[0].length;
    if (nextPos < matchStart) {
      ret.push(str1.slice(nextPos, matchStart));
    }
    ret.push(array1[0]);
    nextPos = regex1.lastIndex;
  }
 
  if (nextPos < str1.length - 1) {
    ret.push(str1.slice(nextPos));
  }
 
  return ret;
}
 
console.log(doMatch('abc<def>hij</klm>nop<qrs>tuv</wxy>z'));
console.log(doMatch('<def>hij</klm>nop<qrs></wxy>'));

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