var text = '[lexio param1="ara" param2="baba"]content[/lexio]' + "\n\n" +
'[tagor param1="rara"]';
var regex = /\](.*?)\[/g, result = [];
while ( (result = regex.exec(text)) ) {
print(result[1]);
}
dmFyIHRleHQgPSAnW2xleGlvIHBhcmFtMT0iYXJhIiBwYXJhbTI9ImJhYmEiXWNvbnRlbnRbL2xleGlvXScgKyAiXG5cbiIgKwogICAgICAgICAgICdbdGFnb3IgcGFyYW0xPSJyYXJhIl0nOwogCnZhciByZWdleCA9IC9cXSguKj8pXFsvZywgcmVzdWx0ID0gW107IAogCndoaWxlICggKHJlc3VsdCA9IHJlZ2V4LmV4ZWModGV4dCkpICkgeyAKICBwcmludChyZXN1bHRbMV0pOwp9IAo=