//******************************************************************************
//*Title: Sentence Lab
//*Author: Micah Vanella	Date: October 24,2007
//*The purpose of this program is to create a series of random sentences using
//* pointer strings.
//******************************************************************************
#include <iostream>
#include <cstdlib>	//For srand and rand
using namespace std;
 
const int numSent=20;		//Number of sentences to output
const int maxSentSize=128;	//Maximum number of characters in the sentence
 
//***********************************************************FUNCTION DECLARATIONS
 
char* makeSentence(char sentence[], char* aArr[], char* nArr[], char* vArr[], char* pArr[], int sizeA, int sizeN, int sizeV, int sizeP);
char* concat(char* first, char* second);
void printSentence(char *sent);
 
//****************************************************************MAIN FUNCTION
 
void main(){	
	cout << "Welcome to the Amazing Sentence Maker 4000." << endl;	//Introduction
 
	cout << "\nPlease enter an integer for the seed value." << endl;//User input of
	int seedval;													// seed value
	cin >> seedval;
 
	srand(seedval);	//Set the seed using the user specified seed value
 
	//Articles, nouns, verbs, and prepositions declarations 
	char* article[] = {"the", "a", "one", "some", "every", "any"};
	char* noun[] = {"boy", "girl", "monkey", "LU", "car"};
	char* verb[] = {"drove", "jumped", "ran", "walked", "bit"};
	char* prep[] = {"to", "from", "over", "under", "on"};
	char sent[numSent][maxSentSize];	//To hold each sentence
 
	//Find the number 
	int sizeA = (sizeof(article)/sizeof(*article));
	int sizeN = (sizeof(noun)/sizeof(*noun));
	int sizeV = (sizeof(verb)/sizeof(*verb));
	int sizeP = (sizeof(prep)/sizeof(*prep));
 
	//Print 20 sentences
	for (int i=0; i<numSent; i++){
		makeSentence(sent[i], article, noun, verb, prep, sizeA, sizeN, sizeV, sizeP);
		printSentence(sent[i]);
	}
 
	char tempChar;
	cout << "Program ended.\nPlease enter any value and press enter to exit.\n";
	cin >> tempChar;
	return;
}
//************************************************************************************
//*Function: makeSentence
//*Author: Micah Vanella	Date: 10/21/07
//*This function creates the sentence by calling a concatenate function to add
//* each word to the "sentence" array and eventually returning the completed sentence
//*The sentence structure is the following: Article, noun, verb, preposition, article,
//* noun.
//************************************************************************************
char* makeSentence(char sentence[], char* article[], char* noun[], char* verb[], char* prep[], int sizeA, int sizeN, int sizeV, int sizeP){
	*sentence=0;	//Initialize the array of chars
	concat(sentence, article[rand()%sizeA]);
	concat(sentence, noun[rand()%sizeN]);
	concat(sentence, verb[rand()%sizeV]);
	concat(sentence, prep[rand()%sizeP]);
	concat(sentence, article[rand()%sizeA]);
	concat(sentence, noun[rand()%sizeN]);
	return sentence;
}
 
//**************************************************************************
//*Function: concat
//*Author: Micah Vanella	Date: 10/21/07
//*This function concatenates two strings passed in. It adds the src string
//* to the end of the dst string. It places a space between the two words.
//**************************************************************************
char* concat(char* dst, char* src){
	while (*dst){	//get to the end of the dst string
		++dst;
	}
	*dst++ = ' ';	//add a space between the words then increment
	do{
		*dst++ = *src;	//copy the src string to the end of the dst string
	}
	while (*src++);
	return dst;
}
 
//**************************************************************************
//*Function: printSentence
//*Author: Micah Vanella	Date: 10/21/07
//*This function takes a sentence string, changes the first character to a
//* capital, then adds a period at the end and sends it to the display.
//**************************************************************************
void printSentence(char *sent){
	toupper(*sent);
	while(*++sent);
	*sent++ = '.';
	*sent = 0;
	cout << sent << endl;
	return;
}