how to count the number of paragraphs in a text file

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Hi i tried like this

C#

int main()
{
        FILE *fp=fopen("200_content.txt ","r");
        int pCount=0;
        char c;
        while ((c=fgetc(fp))!=EOF)
        {
                if(c=='\n'){pCount++;}
                else{continue;}
        }
        printf("%d",pCount);
        return 0;
}

But i am getting segmentation fault.Can anyone help me with this?

Posted 11-Apr-14 4:15am

Member 10514464

Updated 11-Apr-14 4:16am

v2

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OriginalGriff · Answer 1 · 2014-04-11T04:38:00

First, remove the space from your file name, and check the file is in the same folder as the executable - or it won't work.
Then, check your return value from fopen - because if it doesn't find the file, fopen returns null and your code fails, as you have seen.

Then, look at your code! What do you supposed this does:

C++

else{continue;}

That is in any way shape or form useful?

baliram bhande · Answer 2 · 2014-04-11T22:29:00

A paragraph contains two subsequent '\n's, use a variable for counting the two '\n's, like this,

C++

int main()
{
        FILE *fp=fopen("200_content.txt ","r");
        int pCount=0;
        char c;
        int newln_cnt=0;
        while ((c=fgetc(fp))!=EOF)
        { 
                if(c=='\n')
                {
                  newln_cnt++;
                  if(newln_cnt==2)
                  {

                     pCount++;
                     newln_cnt=0;
                  }
                }
                else{continue;} 
        }
        printf("%d",pCount);
        return 0;
}

baliram bhande · Answer 3 · 2014-04-11T22:31:00

For starters, I assume that you consider a new line to be a new paragraph. i.e.

This is line 1.
This is line 2.

has 2 paragraphs.

What your code does is neglect the case where there is an EOF and not a newline character (\n) after This is line 2.

One way to fix this is to use an extra char variable.

C++

int main()
{
        FILE *fp=fopen("200_content.txt ","r");
        int pCount=0;
        char c; // char that checks
        char last_c; //record of the last character read in the loop
        while ((c=fgetc(fp))!=EOF)
        {
                if(c=='\n'){pCount++;}
                last_c = c;
                else{continue;} //this line is redundant. You can remove it 
        }
        if (last_c != '\n') pCount++; //if EOF at the end of line and not '\n'

        printf("%d",pCount);
        return 0;
}

baliram bhande · Answer 4 · 2014-04-11T22:34:00

Solution 5

C#

#include <stdio.h>

#define MAX_LEN 100

int main(void) {
    char line[MAX_LEN];
    FILE *fp = fopen("200_content.txt ", "r");

    if(fp == NULL) {
        printf("error in opening the file\n");
        return 0;
    }

    int pcount = 0;
    int temp = 0;
    while(fgets(line, sizeof line, fp) != NULL) {
        if(line[0] == '\n') {
            if(temp == 1)
                pcount++;
            temp = 0;
            continue;
        }
        else {
            temp = 1;
        }
    }
    printf("number of para in the file is %d\n", pcount);
    return 0;
}

C++

Posted 11-Apr-14 22:34pm

baliram bhande

Comments

CHill60 12-Apr-14 6:04am

Don't post multiple solutions to the same question - which one is supposed to be correct?

baliram bhande 12-Apr-14 6:18am

k sir

baliram bhande 14-Apr-14 3:15am

why u give me down vote .if i post multiple ans is it crime???????????????????????????
i ask those people who can give me down votated

baliram bhande 15-Apr-14 7:02am

if you agree my answer plz accept it...................

how to count the number of paragraphs in a text file

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