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#include "config.h"
#include "f2c.h"
#include "fio.h"
#include "fmt.h"
y_rsk(Void)
{
if(f__curunit->uend || f__curunit->url <= f__recpos
|| f__curunit->url == 1) return 0;
do {
getc(f__cf);
} while(++f__recpos < f__curunit->url);
return 0;
}
y_getc(Void)
{
int ch;
if(f__curunit->uend) return(-1);
if((ch=getc(f__cf))!=EOF)
{
f__recpos++;
if(f__curunit->url>=f__recpos ||
f__curunit->url==1)
return(ch);
else return(' ');
}
if(feof(f__cf))
{
f__curunit->uend=1;
errno=0;
return(-1);
}
err(f__elist->cierr,errno,"readingd");
}
static int
y_rev(Void)
{
if (f__recpos < f__hiwater)
f__recpos = f__hiwater;
if (f__curunit->url > 1)
while(f__recpos < f__curunit->url)
(*f__putn)(' ');
if (f__recpos)
f__putbuf(0);
f__recpos = 0;
return(0);
}
static int
y_err(Void)
{
err(f__elist->cierr, 110, "dfe");
}
static int
y_newrec(Void)
{
y_rev();
f__hiwater = f__cursor = 0;
return(1);
}
#ifdef KR_headers
c_dfe(a) cilist *a;
#else
c_dfe(cilist *a)
#endif
{
f__sequential=0;
f__formatted=f__external=1;
f__elist=a;
f__cursor=f__scale=f__recpos=0;
f__curunit = &f__units[a->ciunit];
if(a->ciunit>MXUNIT || a->ciunit<0)
err(a->cierr,101,"startchk");
if(f__curunit->ufd==NULL && fk_open(DIR,FMT,a->ciunit))
err(a->cierr,104,"dfe");
f__cf=f__curunit->ufd;
if(!f__curunit->ufmt) err(a->cierr,102,"dfe");
if(!f__curunit->useek) err(a->cierr,104,"dfe");
f__fmtbuf=a->cifmt;
if(a->cirec <= 0)
err(a->cierr,130,"dfe");
(void) fseek(f__cf,(long)f__curunit->url * (a->cirec-1),SEEK_SET);
f__curunit->uend = 0;
return(0);
}
#ifdef KR_headers
integer s_rdfe(a) cilist *a;
#else
integer s_rdfe(cilist *a)
#endif
{
int n;
if(f__init != 1) f_init();
f__init = 3;
f__reading=1;
if(n=c_dfe(a))return(n);
if(f__curunit->uwrt && f__nowreading(f__curunit))
err(a->cierr,errno,"read start");
f__getn = y_getc;
f__doed = rd_ed;
f__doned = rd_ned;
f__dorevert = f__donewrec = y_err;
f__doend = y_rsk;
if(pars_f(f__fmtbuf)<0)
err(a->cierr,100,"read start");
fmt_bg();
return(0);
}
#ifdef KR_headers
integer s_wdfe(a) cilist *a;
#else
integer s_wdfe(cilist *a)
#endif
{
int n;
if(f__init != 1) f_init();
f__init = 3;
f__reading=0;
if(n=c_dfe(a)) return(n);
if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
err(a->cierr,errno,"startwrt");
f__putn = x_putc;
f__doed = w_ed;
f__doned= w_ned;
f__dorevert = y_err;
f__donewrec = y_newrec;
f__doend = y_rev;
if(pars_f(f__fmtbuf)<0)
err(a->cierr,100,"startwrt");
fmt_bg();
return(0);
}
integer e_rdfe(Void)
{
f__init = 1;
en_fio();
return(0);
}
integer e_wdfe(Void)
{
f__init = 1;
return en_fio();
}
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