freebsd-dev/lib/libI77/rsfe.c
1997-04-13 01:16:58 +00:00

80 lines
1.4 KiB
C

/* read sequential formatted external */
#include "f2c.h"
#include "fio.h"
#include "fmt.h"
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);
}
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);
}
x_endp(Void)
{
xrd_SL();
return f__curunit->uend == 1 ? EOF : 0;
}
x_rev(Void)
{
(void) xrd_SL();
return(0);
}
#ifdef KR_headers
integer s_rsfe(a) cilist *a; /* start */
#else
integer s_rsfe(cilist *a) /* start */
#endif
{ int n;
if(!f__init) f_init();
if(n=c_sfe(a)) return(n);
f__reading=1;
f__sequential=1;
f__formatted=1;
f__external=1;
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);
}