libf2c/libI77/rsli.c

   1 #include "f2c.h"
   2 #include "fio.h"
   3 #include "lio.h"
   4 #include "fmt.h" /* for f__doend */
   5
   6 extern flag f__lquit;
   7 extern int f__lcount;
   8 extern char *f__icptr;
   9 extern char *f__icend;
  10 extern icilist *f__svic;
  11 extern int f__icnum, f__recpos;
  12
  13 static int i_getc(Void)
  14 {
  15         if(f__recpos >= f__svic->icirlen) {
  16                 if (f__recpos++ == f__svic->icirlen)
  17                         return '\n';
  18                 z_rnew();
  19                 }
  20         f__recpos++;
  21         if(f__icptr >= f__icend)
  22                 return EOF;
  23         return(*f__icptr++);
  24         }
  25
  26  static
  27 #ifdef KR_headers
  28 int i_ungetc(ch, f) int ch; FILE *f;
  29 #else
  30 int i_ungetc(int ch, FILE *f)
  31 #endif
  32 {
  33         if (--f__recpos == f__svic->icirlen)
  34                 return '\n';
  35         if (f__recpos < -1)
  36                 err(f__svic->icierr,110,"recend");
  37         /* *--icptr == ch, and icptr may point to read-only memory */
  38         return *--f__icptr /* = ch */;
  39         }
  40
  41  static void
  42 #ifdef KR_headers
  43 c_lir(a) icilist *a;
  44 #else
  45 c_lir(icilist *a)
  46 #endif
  47 {
  48         extern int l_eof;
  49         if(f__init != 1) f_init();
  50         f__init = 3;
  51         f__reading = 1;
  52         f__external = 0;
  53         f__formatted = 1;
  54         f__svic = a;
  55         L_len = a->icirlen;
  56         f__recpos = -1;
  57         f__icnum = f__recpos = 0;
  58         f__cursor = 0;
  59         l_getc = i_getc;
  60         l_ungetc = i_ungetc;
  61         l_eof = 0;
  62         f__icptr = a->iciunit;
  63         f__icend = f__icptr + a->icirlen*a->icirnum;
  64         f__cf = 0;
  65         f__curunit = 0;
  66         f__elist = (cilist *)a;
  67         }
  68
  69
  70 #ifdef KR_headers
  71 integer s_rsli(a) icilist *a;
  72 #else
  73 integer s_rsli(icilist *a)
  74 #endif
  75 {
  76         f__lioproc = l_read;
  77         f__lquit = 0;
  78         f__lcount = 0;
  79         c_lir(a);
  80         f__doend = 0;
  81         return(0);
  82         }
  83
  84 integer e_rsli(Void)
  85 { f__init = 1; return 0; }
  86
  87 #ifdef KR_headers
  88 integer s_rsni(a) icilist *a;
  89 #else
  90 extern int x_rsne(cilist*);
  91
  92 integer s_rsni(icilist *a)
  93 #endif
  94 {
  95         extern int nml_read;
  96         integer rv;
  97         cilist ca;
  98         ca.ciend = a->iciend;
  99         ca.cierr = a->icierr;
 100         ca.cifmt = a->icifmt;
 101         c_lir(a);
 102         rv = x_rsne(&ca);
 103         nml_read = 0;
 104         return rv;
 105         }