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#include <stdio.h>
#include "fileprint.h"
#define MAXLINE 100
#define MAXBOT 3
#define MAXHDR 5
#define MAXPAGE 66
static int heading(char *fname, int pageno);
void fileprint(FILE *fp, char *fname)
{
/* before making sense of this code read this first
* https://en.wikipedia.org/wiki/Page_break
* this code was helpful for printing text files
* this is not a clone of less, it just puts \f at the end
* of a page so the printer can print the rest on a new page */
char line[MAXLINE];
int lineno, pageno = 1;
lineno = heading(fname, pageno);
while (fgets(line, MAXLINE, fp)) {
if (lineno == 1) {
fprintf(stdout, "\f");
lineno = heading(fname, ++pageno);
}
if (lineno++ > MAXPAGE - MAXBOT)
lineno = 1;
fputs(line, stdout);
}
fprintf(stdout, "\f");
}
static int heading(char *fname, int pageno)
{
int ln = 3;
fprintf(stdout, "\n\n");
fprintf(stdout, "%s page %d\n", fname, pageno);
while (ln++ < MAXHDR)
fprintf(stdout, "\n");
return ln;
}
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