#include <stdio.h>
#include <stdlib.h>

// This program prints the contents of a file but skips the lines 
// starting with # (the # symbol is sometimes used to denote comments).
//
// The code uses fgets to read each line into a char array called BUFFER.
// BUFFER is analysed and if the first character is a # the line is not printed.
//
// This is similar to the previous program but correctly handles comment lines  
// where the # symbol is not the first character on the line (there is leading whitespace).

int main()
{
	FILE *fp;
	char BUFFER[1024];
	int a, b;
	
	fp = fopen("text.txt", "r");  // open the file for reading
	if(fp == NULL)
		printf("File not found!\n");
	else
	{
		while( fgets(BUFFER, 1024, fp) != NULL) // read at most 1024 characters from fp and store them in BUFFER
		{
			int i=0;
			while(isspace(BUFFER[i])) // skip the leading whitespace
				i++;
				
			if(BUFFER[i] != '#')       // if this is not a comment line
				printf("%s", BUFFER);  // then print it on the screen
		}
		
		fclose(fp);
	}
	
	system("pause");
}