C program that converts tabs to spaces

[Will2k]

I've been working on this little program that will convert a tab into spaces. I have it set up so it can find the tab, but i am having trouble with converting it. Any help would be great!

 
#include <stdio.h> 
 
int main() 
{ 
int c, d; 
 
while((c=getchar()!= EOF){ 
d=0; 
 
if(c=='t'){ 
putchar('\n'); //I did this to see if it will read the tab 
d=1 
} 
 
if(d==0) 
putchar(c); 
} 
return 0; 
} 
 
 
 
 
 

[sicarie]

I've been working on this little program that will convert a tab into spaces. I have it set up so it can find the tab, but i am having trouble with converting it. Any help would be great!

 
#include <stdio.h> 
 
int main() 
{ 
int c, d; 
 
while((c=getchar()!= EOF){ 
d=0; 
 
if(c=='t'){ 
putchar('\n'); //I did this to see if it will read the tab 
d=1 
} 
 
if(d==0) 
putchar(c); 
} 
return 0; 
} 
 
 
 
 
 

Have you tried 'if (t=='\t')'?

[JosAH]

Have you tried 'if (t=='\t')'?

Or "if(c == '\t')" for that matter ;-) The op should first do the simple math: suppose
before reading a character, m characters have been output already. Suppose n
is the size of a tab(stop). If the current character is not a tab, m is simply incremented
by 1 and the character is output; otherwise (a tab was read) so n-m%n
spaces have to be output and m must be incremented by that same number.

kind regards,

Jos

[sicarie]

Or "if(c == '\t')" for that matter ;-)

Argh.... wow, that was careless of me. Thanks, Jos.

[Will2k]

I'm not sure what "if(c == '\t')" would do.

Also I understand what you were saying about the math. have the tab character (which is 8 spaces) minus the number of characters already counted.

So if I have something like

char t='\t';

how would I be able to make t-c=f?

[JosAH]

I'm not sure what "if(c == '\t')" would do.

Erm, it tests whether or not character c is tab?

Also I understand what you were saying about the math. have the tab character (which is 8 spaces) minus the number of characters already counted.

So if I have something like

char t='\t';

how would I be able to make t-c=f?

What is 'c'? What is 'f'? All you have to do is keep track of a current position 'm'
and a tabstop size 'n'; for more details read my previous reply.

kind regards,

Jos