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Apr 19th, 2009

Reading words from file

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Hello. I was wondering how to read strings from a file word by word and store the words into an array in c. I am having to write a program that tests words to see of they are palindromes from a little paragraph i wrote in a file. I've been trying to figure it out all afternoon with no luck.

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bemo55

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Apr 19th, 2009

Re: Reading words from file

fgets and strtok would be good places to start. Do you know how many strings you will be reading? If you don't it will make the array part a little more difficult.

death_oclock

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Apr 19th, 2009

Re: Reading words from file

Here you have a small example :

C Syntax (Toggle Plain Text)
#include <stdio.h>
 
main()
{
   FILE *fp;
 
   fp = fopen("test.txt", "w");
   fscanf(fp, "%s", buffer);
   printf("Read Buffer: %s\n", %buffer );
   flcose(fp;);
 
}
#include <stdio.h>

main()
{
   FILE *fp;

   fp = fopen("test.txt", "w");
   fscanf(fp, "%s", buffer);
   printf("Read Buffer: %s\n", %buffer );
   flcose(fp;);

}

To better understand fscanf try viewing : http://irc.essex.ac.uk/www.iota-six....nf_fprintf.asp

Last edited by jen140; Apr 19th, 2009 at 9:04 pm.

jen140

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Apr 19th, 2009

Re: Reading words from file

I hate to sound like a prick but... using fscanf is generally a bad idea. There are plenty of reasons, but a big one is that most people don't really understand what its doing. Therefore it usually only works with carefully formatted input. Or by accident.

death_oclock

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Apr 19th, 2009

Re: Reading words from file

I have looked at strtok but I didnt think that it would work with data i am reading in. All the examples i seen were declaring the array as a certain string like
char array1=" your string here"
and then using strtok. I didn't really understand how to use strtok.

bemo55

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Apr 19th, 2009

Re: Reading words from file

p.s. My file has 63 strings.

bemo55

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Apr 19th, 2009

Re: Reading words from file

Nevermind. I got the tokenizing function to work

..Now ive just got to implement my palindrone function. Thanks for the help guys.

bemo55

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