code: function findOuterChar(str, char){
  	
  	
  	var square=0, curly=0, round=0, angle=0;
  	for(var i=0;i<str.length;++i){
  		var c = str.charAt(i);
  
  		if(c === char && square === 0 && curly === 0 && round === 0 && angle === 0){
  			return i;
  		}
  		
  		if(c === '[') ++square;
  		else if(c === ']') --square;
  		else if(c === '{') ++curly;
  		else if(c === '}') --curly;
  		else if(c === '(') ++round;
  		else if(c === ')') --round;
  		else if(c === '<') ++angle;
  		else if(c === '>') --angle;
  
  		if(c === char && square === 0 && curly === 0 && round === 0 && angle === 0){
  			return i;
  		}
  	}
  	
  	if(square !== 0) _.errout('mismatched [] brackets: ' + str);
  	if(curly !== 0) _.errout('mismatched {} brackets: ' + str);
  	if(round !== 0) _.errout('mismatched () brackets: ' + str);
  	
  	return -1;
  }
docs: var ampersandParam = {type: 'param', name: '~'}