70 lines
1.1 KiB
C
70 lines
1.1 KiB
C
/* read sequential formatted external */
|
|
#include "f2c.h"
|
|
#include "fio.h"
|
|
#include "fmt.h"
|
|
extern int x_getc(),rd_ed(),rd_ned();
|
|
extern int x_endp(),x_rev(),xrd_SL();
|
|
integer s_rsfe(a) cilist *a; /* start */
|
|
{ int n;
|
|
if(!init) f_init();
|
|
if(n=c_sfe(a)) return(n);
|
|
reading=1;
|
|
sequential=1;
|
|
formatted=1;
|
|
external=1;
|
|
elist=a;
|
|
cursor=recpos=0;
|
|
scale=0;
|
|
fmtbuf=a->cifmt;
|
|
curunit= &units[a->ciunit];
|
|
cf=curunit->ufd;
|
|
if(pars_f(fmtbuf)<0) err(a->cierr,100,"startio");
|
|
getn= x_getc;
|
|
doed= rd_ed;
|
|
doned= rd_ned;
|
|
fmt_bg();
|
|
doend=x_endp;
|
|
donewrec=xrd_SL;
|
|
dorevert=x_rev;
|
|
cblank=curunit->ublnk;
|
|
cplus=0;
|
|
if(curunit->uwrt && nowreading(curunit))
|
|
err(a->cierr,errno,"read start");
|
|
return(0);
|
|
}
|
|
xrd_SL()
|
|
{ int ch;
|
|
if(!curunit->uend)
|
|
while((ch=getc(cf))!='\n' && ch!=EOF);
|
|
cursor=recpos=0;
|
|
return(1);
|
|
}
|
|
x_getc()
|
|
{ int ch;
|
|
if(curunit->uend) return(EOF);
|
|
ch = getc(cf);
|
|
if(ch!=EOF && ch!='\n')
|
|
{ recpos++;
|
|
return(ch);
|
|
}
|
|
if(ch=='\n')
|
|
{ (void) ungetc(ch,cf);
|
|
return(ch);
|
|
}
|
|
if(curunit->uend || feof(cf))
|
|
{ errno=0;
|
|
curunit->uend=1;
|
|
return(-1);
|
|
}
|
|
return(-1);
|
|
}
|
|
x_endp()
|
|
{
|
|
(void) xrd_SL();
|
|
return(0);
|
|
}
|
|
x_rev()
|
|
{
|
|
(void) xrd_SL();
|
|
return(0);
|
|
}
|