Thread: Read word from text file (It is an essay)

I am a AD students. I have a question here. does anyone help me?

i am writing a program to get word from text file, which is an eassy. i need to sperate each word and then write to another text file. in the new text file, the word should be one word per line , no numbers or other char such as !, ? and many others, no double or something like that are allow.

i have wrote it, but something is wrong. I get word from text and write to the new text file but in the new text file. i have find the double line. Why does it cause? What's wrong is that?

for examples
in the text file
***************
i am a boy. i am 15 years old.
**************
in the new text file

i
am
a
boy
i
am
years
old

my code is here

Code:

#include<stdio.h>

void main()
{
	FILE *fp,*fp1;
	char word[1000000];
	int i=0;
	
	fp=fopen("wap.txt","r");
    fp1=fopen("wordlist.txt","w");

	while (!feof(fp))
	{
      fscanf(fp,"%c",&word[i]);
	  if(word[i] == ' ' || word[i]=='\n')
	  {
	  fprintf(fp1,"%c\n",word[i]);
	  }
	  else if (((word[i]>='a') && (word[i]<='z')) || ((word[i]>='A') && (word[i]<='Z')))
	  {
		  fprintf(fp1,"%c",word[i]);
	  }
   
		
	}

	fclose(fp);
	fclose(fp1);
	

}

I am posting this because you did not use code tags on this thread. In the furture please use Code Tags. They make your code MUCH easier to read and people will be much more likely to help you if you do. And they'll be happier about helping you

For example:

Without code tags:

for(int i=0;i<5;i++)
{
cout << "No code tags are bad";
}

With Code Tags:

Code:

for(int i=0;i<5;i++)
{
     cout << "This code is easy to read";
}

This is of course a basic example...more complicated code is even easier to read with code tags than without.

I've added code tags for you this time. They can be added by putting [code] at the beginning of your code and [/code] at the end. More information on code tags may be found on the code tag post at the top of every forum. I also suggest you take a look at the board guildlines if you have not done so already.

This is a common first post mistake, just remember to use [code] tags in the future and you'll get much more help.

If this is your first time posting here the welcome, and if there's anything I can do or any questions I can answer about these forums, or anything else, please feel free and welcome to PM me.


Good Luck with your program,

Kermi3
Lead Moderator

>>no numbers or other char such as !, ?
Lookup isalpha()

>>double line
This is caused by your incorrect use of feof(). Read this:
http://faq.cprogramming.com/cgi-bin/...&id=1043284351

Try this:

Code:

void main()
{
  FILE *fp,*fp1;
  char c;        /* the word array was never fully used */
  	
  fp=fopen("wap.txt","r");
  fp1=fopen("wordlist.txt","w");

  while ((c = fgetc(fp)) != EOF)    /* as per Hammer's post */
  {
    if(c == ' ' || c=='\n')
    {
      fprintf(fp1,"\n");   /* <-- changed this line */
    }
    else if (((c>='a') && (c<='z')) || ((c>='A') && (c<='Z')))
    {
      fprintf(fp1,"%c",c);
    }		
  }

  fclose(fp);
  fclose(fp1);
}

before, when you read a '\n' you were replacing it with "\n\n".

Does that fix your problem?

Use some variable to keep track of lines that received alphabetic character(s) already. Only add a newline if alphabetic characters have preceded it.

Code:

#include<stdio.h>
#include<ctype.h>

int main(void)
{
   FILE *infile  = fopen("wap.txt","r");
   FILE *outfile = fopen("wordlist.txt","w");
   if ( infile != NULL && outfile != NULL )
   {
      int terminate = 0;
      for ( ;; )
      {
         int ch = fgetc(infile);
         if ( ch == EOF )
         {
            break;
         }
         if ( isalpha(ch) )
         {
            fputc(ch, outfile);
            terminate = 1; /* okay to add newline on next space */
         }
         else if ( isspace(ch) && terminate )
         {
            fputc('\n', outfile);
            terminate = 0;
         }
      }
      fclose(infile);
      fclose(outfile);
   }
   return 0;
}

/* wap.txt
i am a boy. i am 15 years old.
*/

/* wordlist.txt
i
am
a
boy
i
am
years
old
*/