136 lines
2.4 KiB
C
136 lines
2.4 KiB
C
#include "f2c.h"
|
|
#include "fio.h"
|
|
#include "fmt.h"
|
|
extern int rd_ed(),rd_ned(),y_getc(),y_putc(),y_err();
|
|
extern int y_rev(), y_rsk(), y_newrec();
|
|
extern int w_ed(),w_ned();
|
|
integer s_rdfe(a) cilist *a;
|
|
{
|
|
int n;
|
|
if(!init) f_init();
|
|
if(n=c_dfe(a))return(n);
|
|
reading=1;
|
|
if(curunit->uwrt && nowreading(curunit))
|
|
err(a->cierr,errno,"read start");
|
|
getn = y_getc;
|
|
doed = rd_ed;
|
|
doned = rd_ned;
|
|
dorevert = donewrec = y_err;
|
|
doend = y_rsk;
|
|
if(pars_f(fmtbuf)<0)
|
|
err(a->cierr,100,"read start");
|
|
fmt_bg();
|
|
return(0);
|
|
}
|
|
integer s_wdfe(a) cilist *a;
|
|
{
|
|
int n;
|
|
if(!init) f_init();
|
|
if(n=c_dfe(a)) return(n);
|
|
reading=0;
|
|
if(curunit->uwrt != 1 && nowwriting(curunit))
|
|
err(a->cierr,errno,"startwrt");
|
|
putn = y_putc;
|
|
doed = w_ed;
|
|
doned= w_ned;
|
|
dorevert = y_err;
|
|
donewrec = y_newrec;
|
|
doend = y_rev;
|
|
if(pars_f(fmtbuf)<0)
|
|
err(a->cierr,100,"startwrt");
|
|
fmt_bg();
|
|
return(0);
|
|
}
|
|
integer e_rdfe()
|
|
{
|
|
(void) en_fio();
|
|
return(0);
|
|
}
|
|
integer e_wdfe()
|
|
{
|
|
(void) en_fio();
|
|
return(0);
|
|
}
|
|
c_dfe(a) cilist *a;
|
|
{
|
|
sequential=0;
|
|
formatted=external=1;
|
|
elist=a;
|
|
cursor=scale=recpos=0;
|
|
if(a->ciunit>MXUNIT || a->ciunit<0)
|
|
err(a->cierr,101,"startchk");
|
|
curunit = &units[a->ciunit];
|
|
if(curunit->ufd==NULL && fk_open(DIR,FMT,a->ciunit))
|
|
err(a->cierr,104,"dfe");
|
|
cf=curunit->ufd;
|
|
if(!curunit->ufmt) err(a->cierr,102,"dfe")
|
|
if(!curunit->useek) err(a->cierr,104,"dfe")
|
|
fmtbuf=a->cifmt;
|
|
(void) fseek(cf,(long)curunit->url * (a->cirec-1),SEEK_SET);
|
|
curunit->uend = 0;
|
|
return(0);
|
|
}
|
|
y_rsk()
|
|
{
|
|
if(curunit->uend || curunit->url <= recpos
|
|
|| curunit->url == 1) return 0;
|
|
do {
|
|
getc(cf);
|
|
} while(++recpos < curunit->url);
|
|
return 0;
|
|
}
|
|
y_getc()
|
|
{
|
|
int ch;
|
|
if(curunit->uend) return(-1);
|
|
if((ch=getc(cf))!=EOF)
|
|
{
|
|
recpos++;
|
|
if(curunit->url>=recpos ||
|
|
curunit->url==1)
|
|
return(ch);
|
|
else return(' ');
|
|
}
|
|
if(feof(cf))
|
|
{
|
|
curunit->uend=1;
|
|
errno=0;
|
|
return(-1);
|
|
}
|
|
err(elist->cierr,errno,"readingd");
|
|
}
|
|
y_putc(c)
|
|
{
|
|
recpos++;
|
|
if(recpos <= curunit->url || curunit->url==1)
|
|
putc(c,cf);
|
|
else
|
|
err(elist->cierr,110,"dout");
|
|
return(0);
|
|
}
|
|
y_rev()
|
|
{ /*what about work done?*/
|
|
if(curunit->url==1 || recpos==curunit->url)
|
|
return(0);
|
|
while(recpos<curunit->url)
|
|
(*putn)(' ');
|
|
recpos=0;
|
|
return(0);
|
|
}
|
|
y_err()
|
|
{
|
|
err(elist->cierr, 110, "dfe");
|
|
}
|
|
|
|
y_newrec()
|
|
{
|
|
if(curunit->url == 1 || recpos == curunit->url) {
|
|
hiwater = recpos = cursor = 0;
|
|
return(1);
|
|
}
|
|
if(hiwater > recpos)
|
|
recpos = hiwater;
|
|
y_rev();
|
|
hiwater = cursor = 0;
|
|
return(1);
|
|
}
|