Question

Type into a character array, or copy from an online source, Lincoln’s Gettysburg Address. Write a C Language Program that will search for the following words and then print out the entire sentence from Lincoln’s Gettysburg Address for every occurrence of each of the specified words:

            civil                  nation              nobly               people             place               proper

            Your program should search through the Gettysburg Address and find the answers, not pre-load them to print out once a particular word is sought.

This is my current code that I came up with:

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

int main(void) {
   char address[] = "Fourscore and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we cannot dedicate-we cannot consecrate-we cannot hallow-this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us-that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion-that we here highly resolve that these dead shall not have died in vain-that this nation, under God, shall have a new birth of freedom-and that government of the people, by the people, for the people shall not perish from the earth.";
   char line[50], word1 = "civil", word2 = "nation", word3 = "nobly", word4 = "people", word5 = "place", word6 = "proper";
   int loc, i, j, k=0;

   puts("Searching for the sentences that contain the words: civil, nation, nobly, people, place, proper\n");

   loc = strstr(address, word1); //searching for 'civil' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word2); //searching for 'nation' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word3); //searching for 'nobly' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word4); //searching for 'people' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word5); //searching for 'place' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word6); //searching for 'proper' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   return 0;
}

What am I doing wrong here?

Answer 1

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

int main(void) {
char address[] = "Fourscore and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we cannot dedicate-we cannot consecrate-we cannot hallow-this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us-that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion-that we here highly resolve that these dead shall not have died in vain-that this nation, under God, shall have a new birth of freedom-and that government of the people, by the people, for the people shall not perish from the earth.";
char line[50], word1[] = "civil", word2[] = "nation", word3[] = "nobly", word4[] = "people", word5[] = "place", word6[] = "proper";
int i, j, k=0;
char* loc;
puts("Searching for the sentences that contain the words: civil, nation, nobly, people, place, proper\n");

loc = strstr(address, word1); //searching for 'civil' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

loc = strstr(address, word2); //searching for 'nation' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

loc = strstr(address, word3); //searching for 'nobly' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

loc = strstr(address, word4); //searching for 'people' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

loc = strstr(address, word5); //searching for 'place' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

loc = strstr(address, word6); //searching for 'proper' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s\n", line);

return 0;
}