libf2c/libI77/iio.c

   1 #include "f2c.h"
   2 #include "fio.h"
   3 #include "fmt.h"
   4 extern char *f__icptr;
   5 char *f__icend;
   6 extern icilist *f__svic;
   7 int f__icnum;
   8 extern int f__hiwater;
   9 int
  10 z_getc (void)
  11 {
  12   if (f__recpos++ < f__svic->icirlen)
  13     {
  14       if (f__icptr >= f__icend)
  15         err (f__svic->iciend, (EOF), "endfile");
  16       return (*(unsigned char *) f__icptr++);
  17     }
  18   return '\n';
  19 }
  20
  21 void
  22 z_putc (int c)
  23 {
  24   if (f__recpos++ < f__svic->icirlen && f__icptr < f__icend)
  25     *f__icptr++ = c;
  26 }
  27 int
  28 z_rnew (void)
  29 {
  30   f__icptr = f__svic->iciunit + (++f__icnum) * f__svic->icirlen;
  31   f__recpos = 0;
  32   f__cursor = 0;
  33   f__hiwater = 0;
  34   return 1;
  35 }
  36
  37 static int
  38 z_endp (void)
  39 {
  40   (*f__donewrec) ();
  41   return 0;
  42 }
  43
  44 int
  45 c_si (icilist * a)
  46 {
  47   if (f__init & 2)
  48     f__fatal (131, "I/O recursion");
  49   f__init |= 2;
  50   f__elist = (cilist *) a;
  51   f__fmtbuf = a->icifmt;
  52   f__curunit = 0;
  53   f__sequential = f__formatted = 1;
  54   f__external = 0;
  55   if (pars_f (f__fmtbuf) < 0)
  56     err (a->icierr, 100, "startint");
  57   fmt_bg ();
  58   f__cblank = f__cplus = f__scale = 0;
  59   f__svic = a;
  60   f__icnum = f__recpos = 0;
  61   f__cursor = 0;
  62   f__hiwater = 0;
  63   f__icptr = a->iciunit;
  64   f__icend = f__icptr + a->icirlen * a->icirnum;
  65   f__cf = 0;
  66   return (0);
  67 }
  68
  69 int
  70 iw_rev (void)
  71 {
  72   if (f__workdone)
  73     z_endp ();
  74   f__hiwater = f__recpos = f__cursor = 0;
  75   return (f__workdone = 0);
  76 }
  77
  78 integer
  79 s_rsfi (icilist * a)
  80 {
  81   int n;
  82   if ((n = c_si (a)))
  83     return (n);
  84   f__reading = 1;
  85   f__doed = rd_ed;
  86   f__doned = rd_ned;
  87   f__getn = z_getc;
  88   f__dorevert = z_endp;
  89   f__donewrec = z_rnew;
  90   f__doend = z_endp;
  91   return (0);
  92 }
  93
  94 int
  95 z_wnew (void)
  96 {
  97   if (f__recpos < f__hiwater)
  98     {
  99       f__icptr += f__hiwater - f__recpos;
 100       f__recpos = f__hiwater;
 101     }
 102   while (f__recpos++ < f__svic->icirlen)
 103     *f__icptr++ = ' ';
 104   f__recpos = 0;
 105   f__cursor = 0;
 106   f__hiwater = 0;
 107   f__icnum++;
 108   return 1;
 109 }
 110
 111 integer
 112 s_wsfi (icilist * a)
 113 {
 114   int n;
 115   if ((n = c_si (a)))
 116     return (n);
 117   f__reading = 0;
 118   f__doed = w_ed;
 119   f__doned = w_ned;
 120   f__putn = z_putc;
 121   f__dorevert = iw_rev;
 122   f__donewrec = z_wnew;
 123   f__doend = z_endp;
 124   return (0);
 125 }
 126
 127 integer
 128 e_rsfi (void)
 129 {
 130   int n;
 131   f__init &= ~2;
 132   n = en_fio ();
 133   f__fmtbuf = NULL;
 134   return (n);
 135 }
 136
 137 integer
 138 e_wsfi (void)
 139 {
 140   int n;
 141   f__init &= ~2;
 142   n = en_fio ();
 143   f__fmtbuf = NULL;
 144   if (f__svic->icirnum != 1
 145       && (f__icnum > f__svic->icirnum
 146           || (f__icnum == f__svic->icirnum && (f__recpos | f__hiwater))))
 147     err (f__svic->icierr, 110, "inwrite");
 148   if (f__recpos < f__hiwater)
 149     f__recpos = f__hiwater;
 150   if (f__recpos >= f__svic->icirlen)
 151     err (f__svic->icierr, 110, "recend");
 152   if (!f__recpos && f__icnum)
 153     return n;
 154   while (f__recpos++ < f__svic->icirlen)
 155     *f__icptr++ = ' ';
 156   return n;
 157 }