[finalcloud13]

In my entry-level computer science course, the professor wants us to write a little program that will classify a message as spam or not. Some of the instructions that are giving me trouble are the following:

1. "Enter the body of the email. Press enter on an empty line to finish." I don't understand how to do this. To make myself clear here, I mean that the user has to press Enter on an empty line in order to finish writing the body part. Example:

//This is what I want, but don't have.
Hi mom. <-- the user is able to hit the Enter key on this line
<-- and again on this line to submit the body.

//This is what I have, but don't want.
Hi mom. <-- the user is only able to press Enter once before the program takes the input.

2. What do I do to check if a string has least one word, and more than 90% of the words in the subject line consist of only uppercase letters?

More questions to come soon Thanks in advance.

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#include <string>

#include <iostream>



#define LINELENGTH 200



int main()

{	

	// 1. "Enter the body of the email. Press enter on an empty line to finish."

	std::string body;

	char buff[LINELENGTH+1]; // include null character



	while(true)

	{

		std::cin.getline(buff,LINELENGTH);

		if(strcmp(buff,""))

			body.append(buff);

		else

			break;

	}





	

	// 2. What do I do to check if a string has least one word, and more than 90% 

	//	of the words in the subject line consist of only uppercase letters?

	std::string temp;

	size_t wsPos0 = 0, wsPos1 = 0;

	int countWords = 0, countUppercase = 0;

	bool isUpper;



	while(wsPos1 != std::string::npos)

	{

		wsPos1 = body.find(" ",wsPos0);



		isUpper = true;

		temp = body.substr(wsPos0,wsPos1-wsPos0);

		if(!temp.empty() && strcmp(temp.c_str(),"\n"))

		{

			countWords++;

			for(int ii=0; ii<temp.length(); ii++)

			{

				if(!::isupper(temp[ii]))

				{

					isUpper = false;

					break;

				}

			}

			if(isUpper)

				countUppercase++;

					

		}

		wsPos0 = wsPos1+1;

	}



	std::cout << (countUppercase*100)/countWords << std::endl;

	

	return 0;

}

[Gerardo555]

#include <string>

#include <iostream>



#define LINELENGTH 200



int main()

{	

	// 1. "Enter the body of the email. Press enter on an empty line to finish."

	std::string body;

	char buff[LINELENGTH+1]; // include null character



	while(true)

	{

		std::cin.getline(buff,LINELENGTH);

		if(strcmp(buff,""))

			body.append(buff);

		else

			break;

	}





	

	// 2. What do I do to check if a string has least one word, and more than 90% 

	//	of the words in the subject line consist of only uppercase letters?

	std::string temp;

	size_t wsPos0 = 0, wsPos1 = 0;

	int countWords = 0, countUppercase = 0;

	bool isUpper;



	while(wsPos1 != std::string::npos)

	{

		wsPos1 = body.find(" ",wsPos0);



		isUpper = true;

		temp = body.substr(wsPos0,wsPos1-wsPos0);

		if(!temp.empty() && strcmp(temp.c_str(),"\n"))

		{

			countWords++;

			for(int ii=0; ii<temp.length(); ii++)

			{

				if(!::isupper(temp[ii]))

				{

					isUpper = false;

					break;

				}

			}

			if(isUpper)

				countUppercase++;

					

		}

		wsPos0 = wsPos1+1;

	}



	std::cout << (countUppercase*100)/countWords << std::endl;

	

	return 0;

}