Category : Files from Magazines
Archive   : PTV1N1.ZIP
Filename : TABEXP2.C

 
Output of file : TABEXP2.C contained in archive : PTV1N1.ZIP
/* Listing 2. A more structured tab expansion program */

#include

/* Wrap up global variables for tab expansion into a struct */

typedef struct {
FILE *f; /* input file stream */
int col; /* current column of current line */
int tabsize; /* given tab size */
int tabcnt; /* amount of spaces left in tab */
} tabexp;

void tabexp_init(tabexp *t, FILE *fp, int ts)
/* A function to initialize tabexp structs */
{
t->f = fp;
t->col = 0; t->tabsize = ts; t->tabcnt = 0;
}

int tabexp_get(tabexp *t)
/* Gets a character from the input file, */
/* expanding tabs along the way */
{
int c;

if (t->tabcnt) { /* currently expanding tab */
t->tabcnt--; t->col++;
c = ' ';
}
else c = fgetc(t->f);

if (c == 0x09) { /* tab handler */
t->tabcnt = t->tabsize - (t->col % t->tabsize);
return tabexp_get(t);
}
else {
if (c == '\n') t->col = 0; else t->col++;
}
return c;
}

main()
{
int c;
tabexp te;
tabexp_init(&te, stdin, 8); /* use stdin, tab size of 8 */

do { /* loop until no more characters in input */
c = tabexp_get(&te);
if (c == -1) break; else putc(c, stdout);
} while(1);
}


  3 Responses to “Category : Files from Magazines
Archive   : PTV1N1.ZIP
Filename : TABEXP2.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/