Basically, I'm working on a small program in C (again, not a homework task, just some experimentation while I'm away from Uni :) ). My goal is to take a file containing lots of words all seperated by spaces, loop through the file, and whenever a space is found, replace that for a \n thus creating a large list of words.
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
/*
*
*/
int main(int argc, char** argv) {
char myFile[100];
int i;
FILE *file;
while(argc--) {
printf("%s\n", *argv++);
}
return 0;
}
Very basic what I have so far, what I need to do next is to take the arguement and whack it in the myFile array, so that I can use that as the fopen, or maybe there is another way to do this?
Beyond that, my idea was to then read a line, into an array via fgets, loop through it char by char, searching for ' ', if I find it, replace is for \n, then rewrite that line to the file. Does this sound sensible, doable?
Regards,
and Thanks!
the simplest way is to open the file in binary mode
FILE *fpIn = fopen( argv[1], "rb" );
then open a new file for writing
FILE* fpOut = fopen( "tmp.out", "wb" );
and read byte by byte from fpIn using fgetc and write using fputc to the new file
before writing check if the byte is a space (use isspace()), write a '\n' instead.
then delete original and rename tmp.out to argv[1]