sub #14

#include "ros/ros.h"
#include "std_msgs/String.h"

void doMsg(const std_msgs::String::ConstPtr &msg){
std::string original_msg = msg->data;
std_msgs::String new_msg;
std::transform(original_msg.begin(),original_msg.end(),original_msg.begin(),::toupper);
new_msg.data = original_msg;
ROS_INFO("%s",new_msg.data.c_str());
ros::NodeHandle nh2;
ros::Publisher pub = nh2.advertise< std_msgs::String>("output_topic", 1000);
pub.publish(new_msg);

}

int main(int argc, char *argv[])
{
ros::init(argc,argv,"string_converter");
ros::NodeHandle nh;
ros::Subscriber sub = nh.subscribe("original_topic",10,doMsg);
ros::spin();
return 0;
}