Thread: I made a c function and want to know how to find words in a sentence

I updated my first post with a new question. I got this idea for splitting from the links at the bottom of this page, so if you answer the question it might not only help me but other people using google.

Just assign the tokens to an array... it's not that hard.

Originally Posted by CommonTater

Just assign the tokens to an array... it's not that hard.

Code:

// crt_strtok_s.c
// In this program, a loop uses strtok_s
// to print all the tokens (separated by commas
// or blanks) in two strings at the same time.
//

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

char string1[] =
    "A string\tof ,,tokens\nand some  more tokens";
char seps[]   = " ,\t\n";
char *token1,
     *next_token1;

int main( void )
{
	int totalWords = 0;

    // Establish string and get the first token: 
    token1 = strtok_s( string1, seps, &next_token1);

    // While there are tokens in "string1" or "string2"
    while (token1 != NULL)
    {
        // Get next token:
        if (token1 != NULL)
        {
            printf( "%d %s\n", totalWords++, token1 );
            token1 = strtok_s( NULL, seps, &next_token1);
        }
    }
	getch();
}

Which gives this list:
0 A
1 string
2 of
3 tokens
4 and
5 some
6 more
7 tokens

I wanted to use some if, else if, else on the list I get though but don't know how to do that? Would an array help with that?

Originally Posted by claudiu

Code:

else if(a == 9)
	{
	a=9;
	}

The snippet above is useless for what should be obvious reasons.

Not sure I understand what you are doing in that program but you are not doing it right.

That code was only a proof of concept. here is what I want to do with the if, else if, else statements.
Say I get a noun "House" or a verb "ran" in the list.

The word is then used with a c boolean "or" operator. I check if noun==noun (house==house). If the word house is not equal with the noun being checked it goes to the next equality-testing in the list to see if the word is a noun.

Then I can check stories for there nouns, verbs, etc.

Code:

if((house==car)||(house==eyes)||(house==boat)||(house==house)){
printf("the word is a noun");
}

I have my code to compare words now:

Code:

// crt_strtok_s.c
// In this program, a loop uses strtok_s
// to print all the tokens (separated by commas
// or blanks) in two strings at the same time.
//

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

char string1[] =
    "house dog ran";
char seps[]   = " ,\t\n";
char *token1,
     *next_token1;

int main( void )
{

    // Establish string and get the first token: 
    token1 = strtok_s( string1, seps, &next_token1);

    // While there are tokens in "string1" or "string2"
    while (token1 != NULL)
    {
        // Get next token:
        if (token1 != NULL)
        {
            token1 = strtok_s( NULL, seps, &next_token1);
			if ((strcmp(token1, "house")) || (strcmp(token1, "dog"))){
	  printf("Ok, so it is one of the expected nouns.\n");
        }
			if ((strcmp(1+token1, "run")) || (strcmp(1+token1, "ran"))){
	  printf("Ok, so it is one of the expected verbs.\n");
        }
		getch();
	    return 0;
        }
    }
}

Which gives this answer;

Code:

Ok, so it is one of the expected nouns.
Ok, so it is one of the expected verbs.

As far as having the structure make sense I have a plan. Break the order into chunks of: subject, verb, object, or subject, verb, or exclamation word.
This means I will need four if's: noun, verb, object, exclamation. Like the code below which has three if's.

Code:

// crt_strtok_s.c
// In this program, a loop uses strtok_s
// to print all the tokens (separated by commas
// or blanks) in two strings at the same time.
//

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

char string1[] =
    "sam ate oranges";
char seps[]   = " ,\t\n";
char *token1,
     *next_token1;

int main( void )
{

    // Establish string and get the first token: 
    token1 = strtok_s( string1, seps, &next_token1);

    // While there are tokens in "string1" or "string2"
    while (token1 != NULL)
    {
        // Get next token:
        if (token1 != NULL)
        {
            token1 = strtok_s( NULL, seps, &next_token1);
			if ((strcmp(token1, "house")) || (strcmp(token1, "sam"))){
	  printf("Ok, so it is one of the expected subjects.\n");
        }
			if ((strcmp(1+token1, "run")) || (strcmp(1+token1, "ate"))){
	  printf("Ok, so it is one of the expected verbs.\n");
        }
			if ((strcmp(1+token1, "run")) || (strcmp(1+token1, "oranges"))){
	  printf("Ok, so it is one of the expected objects.\n");
        }
		getch();
	    return 0;
        }
    }
}

Which gives this answer:

Code:

Ok, so it is one of the expected subjects.
Ok, so it is one of the expected verbs.
Ok, so it is one of the expected objects.

I still have no idea quite where you want to go with this, but just based on where you're heading: you're going to have a lot of very unreadable if's, if you intend to write one statement that checks every noun in your dictionary, and every verb, etc. Also, if you start now, and write down every pattern (like subject+verb+object) for possible sentences, and you don't need a lot of sleep, you can probably finish by the end of the year.

I will try and see if I can make h files. One h file for verbs, one for subjects, one for objects. Then in the if statement just type the h file name Noun, Verb, Subject.

The hard part will be adding the sentences to the function without hardcoding them in.
I need to make a gui and be able to paste text into the gui, then have that be put into the function for the function to break it down into subject, verb, object groups.

The problem I was trying to solve is done: step one.
Step one was a way to identify the subject, verb, object in a sentence.
Step two is to make the function input multiple sentences and identify each sentences subject, verb, object properties.
So the function says sentence one has these properties, and sentence two only has these properties.
After I get step 2 done I'll think up step 3.