freebsd-skq/contrib/libf2c/libI77/rsfe.c

98 lines
1.6 KiB
C

/* read sequential formatted external */
#include "config.h"
#include "f2c.h"
#include "fio.h"
#include "fmt.h"
int
xrd_SL (void)
{
int ch;
if (!f__curunit->uend)
while ((ch = getc (f__cf)) != '\n')
if (ch == EOF)
{
f__curunit->uend = 1;
break;
}
f__cursor = f__recpos = 0;
return (1);
}
int
x_getc (void)
{
int ch;
if (f__curunit->uend)
return (EOF);
ch = getc (f__cf);
if (ch != EOF && ch != '\n')
{
f__recpos++;
return (ch);
}
if (ch == '\n')
{
(void) ungetc (ch, f__cf);
return (ch);
}
if (f__curunit->uend || feof (f__cf))
{
errno = 0;
f__curunit->uend = 1;
return (-1);
}
return (-1);
}
int
x_endp (void)
{
xrd_SL ();
return f__curunit->uend == 1 ? EOF : 0;
}
int
x_rev (void)
{
(void) xrd_SL ();
return (0);
}
integer
s_rsfe (cilist * a) /* start */
{
int n;
if (f__init != 1)
f_init ();
f__init = 3;
f__reading = 1;
f__sequential = 1;
f__formatted = 1;
f__external = 1;
if ((n = c_sfe (a)))
return (n);
f__elist = a;
f__cursor = f__recpos = 0;
f__scale = 0;
f__fmtbuf = a->cifmt;
f__curunit = &f__units[a->ciunit];
f__cf = f__curunit->ufd;
if (pars_f (f__fmtbuf) < 0)
err (a->cierr, 100, "startio");
f__getn = x_getc;
f__doed = rd_ed;
f__doned = rd_ned;
fmt_bg ();
f__doend = x_endp;
f__donewrec = xrd_SL;
f__dorevert = x_rev;
f__cblank = f__curunit->ublnk;
f__cplus = 0;
if (f__curunit->uwrt && f__nowreading (f__curunit))
err (a->cierr, errno, "read start");
if (f__curunit->uend)
err (f__elist->ciend, (EOF), "read start");
return (0);
}