Count paragraph in file - c

Question

i am working in file system in that i am counting paragraph from the file but
i am not getting please suggest me how can i do that i tried this but not getting what i want
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;
}

Answer 1

You should declare c as int instead of char.
Also, remember to fclose(fp); before main() returns.

Answer 2

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

Answer 3

You code counts the number of newline '\n' characters, not empty line which demarcates the paragraphs. Use fgets to read lines from the file. I suggest this -
#include <stdio.h>
// maximum length a line can have in the file.
// +1 for the terminating null byte added by fgets
#define MAX_LEN 100+1
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 1;
}
int pcount = 0;
int temp = 0;
while(fgets(line, sizeof line, fp) != NULL) {
if(line[0] == '\n') {
// if newline is found and temp is 1 then
// this means end of the paragraph. increase
// the paragraph counter pcount and set temp to 0
if(temp == 1)
pcount++;
temp = 0;
}
else {
// if a non-empty line is found, this means
// the start of the paragraph
temp = 1;
}
}
// if the last para doesn't end with empty line(s)
if(temp == 1)
pcount++;
printf("number of para in the file is %d\n", pcount);
return 0;
}

Answer 4

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.
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;
}

Answer 5

void analyze_file(const char *filename) {
FILE* out_file;
out_file = fopen(filename,"r");
int size;
if(out_file == NULL)
{
printf("Error(analyze_file): Could not open file %s\n",filename);
return;
}
fseek(out_file,0,SEEK_SET);
char ch,ch1;
int alpha_count = 0,num_count = 0,non_alnum =0,charac=0;
int word_count =0,line=0;
int para=0;
while(!feof(out_file))
{
ch = fgetc(out_file);
if (isalpha(ch))
alpha_count++;
else if(isdigit(ch))
num_count++;
else if(!isalnum(ch) && ch!='\n' && !isspace(ch))
++non_alnum;
else if(ch=='\n')
{ line++;
ch1 = fgetc(out_file);// courser moves ahead , as we read
fseek(out_file,-1,SEEK_CUR); // bringing courser back
}
else if(ch == ch1)
{para++; //paragraph counter
word_count--;
}
if(ch==' '||ch=='\n')
{
word_count++;
}
if(ch==EOF)
{
word_count++;line++;para++;
}
}
non_alnum -=1;// EOF character subtracted.
charac = alpha_count + non_alnum + num_count;
fclose(out_file);
printf("#Paragraphs = %d\n",para);
printf("#lines = %d\n",line);
printf("#Words = %d\n",word_count);
printf("#Characters = %d\n",charac);
printf("Alpha = %d\n",alpha_count);
printf("Numerical = %d\n",num_count);
printf("Other = %d\n",non_alnum);
printf("\n");
return;
}