freebsd-dev/contrib/libf2c/libI77/rsli.c

#include "f2c.h"
#include "fio.h"
#include "lio.h"
#include "fmt.h"		/* for f__doend */

extern flag f__lquit;
extern int f__lcount;
extern char *f__icptr;
extern char *f__icend;
extern icilist *f__svic;
extern int f__icnum, f__recpos;

static int
i_getc (void)
{
  if (f__recpos >= f__svic->icirlen)
    {
      if (f__recpos++ == f__svic->icirlen)
	return '\n';
      z_rnew ();
    }
  f__recpos++;
  if (f__icptr >= f__icend)
    return EOF;
  return (*f__icptr++);
}

static int
i_ungetc (int ch __attribute__ ((__unused__)),
	  FILE * f __attribute__ ((__unused__)))
{
  if (--f__recpos == f__svic->icirlen)
    return '\n';
  if (f__recpos < -1)
    err (f__svic->icierr, 110, "recend");
  /* *--icptr == ch, and icptr may point to read-only memory */
  return *--f__icptr /* = ch */ ;
}

static void
c_lir (icilist * a)
{
  extern int l_eof;
  if (f__init != 1)
    f_init ();
  f__init = 3;
  f__reading = 1;
  f__external = 0;
  f__formatted = 1;
  f__svic = a;
  L_len = a->icirlen;
  f__recpos = -1;
  f__icnum = f__recpos = 0;
  f__cursor = 0;
  l_getc = i_getc;
  l_ungetc = i_ungetc;
  l_eof = 0;
  f__icptr = a->iciunit;
  f__icend = f__icptr + a->icirlen * a->icirnum;
  f__cf = 0;
  f__curunit = 0;
  f__elist = (cilist *) a;
}


integer
s_rsli (icilist * a)
{
  f__lioproc = l_read;
  f__lquit = 0;
  f__lcount = 0;
  c_lir (a);
  f__doend = 0;
  return (0);
}

integer
e_rsli (void)
{
  f__init = 1;
  return 0;
}

extern int x_rsne (cilist *);

integer
s_rsni (icilist * a)
{
  extern int nml_read;
  integer rv;
  cilist ca;
  ca.ciend = a->iciend;
  ca.cierr = a->icierr;
  ca.cifmt = a->icifmt;
  c_lir (a);
  rv = x_rsne (&ca);
  nml_read = 0;
  return rv;
}