/*
 * File:		lab10.c
 * Description:	This is a template program for CS102 Spring 11 class.
 *				This template is divided in four parts which constitute Lab 10.
 * Created:		Sunday November 15, 2009
 * Author:		Marco Bernasconi (mberna7@uic.edu)
 *
 * Modified by:	INSERT HERE YOUR NAME!!
 */

#include <stdio.h>
#include <string.h>

#define WORD_LENGTH 10
#define NUM_WORDS 10

int containsSubstring(const char *, const char *);
int countVowels(const char *);
int tokenize(const char *, char [][WORD_LENGTH]);

int main() {
	char line[NUM_WORDS * WORD_LENGTH];
	int i = 0;

	// 1. Read a line from the standard input and store it in the 'line' variable
	printf("1. Enter a line of text: ");
	/*
		HINT: take a look at the getchar() function
	 */
	
	// 2. Count the number of vowels in that line
	printf("2. In the line \'%s\' there are %d vowels\n", line, countVowels(line));
	
	// 3. Parse the line and print out a word per line 
	char words[NUM_WORDS][WORD_LENGTH];
	int numWords = tokenize(line, words);
	printf("3. The %d words in the line are:\n", numWords);
	for (i = 0; i < numWords; i++) {
		printf("\t\'%s\'\n", words[i]);
	}
	
	// 4. Read a substring from the standard input and print all words that contain that substring
	printf("4. Enter a substring: ");
	char substring[WORD_LENGTH];
	scanf("%s", substring);
	for (i = 0; i < numWords; i++) {
		if (containsSubstring(words[i], substring) == 0) {
			printf("\t\'%s\' contains \'%s\'\n", words[i], substring);
		}
	}

	return 0;
}

/*
 * Determine if the string s1 contains any occurrence of the string s2.
 * If one occurrence is found it returns 0, otherwise it returns -1.
 */
int containsSubstring(const char *s1, const char *s2) {
	int result = -1;
	
	return result;
}

/*
 * Determine the number of occurrences of a vowel in the string s1.
 */
int countVowels(const char *s1) {
	int counter = 0;
	
	return counter;
}

/*
 * Store all the words that are in the string s1 into the array s2.
 * Return the number of words found in the string s1.
 */
int tokenize(const char *s1, char s2[][WORD_LENGTH]) {
	int wordCounter = 0;
	
	return wordCounter;
}