7 if(f__curunit->uend || f__curunit->url <= f__recpos
8 || f__curunit->url == 1) return 0;
11 } while(++f__recpos < f__curunit->url);
17 if(f__curunit->uend) return(-1);
18 if((ch=getc(f__cf))!=EOF)
21 if(f__curunit->url>=f__recpos ||
32 err(f__elist->cierr,errno,"readingd");
38 if (f__recpos < f__hiwater)
39 f__recpos = f__hiwater;
40 if (f__curunit->url > 1)
41 while(f__recpos < f__curunit->url)
52 err(f__elist->cierr, 110, "dfe");
59 f__hiwater = f__cursor = 0;
70 f__formatted=f__external=1;
72 f__cursor=f__scale=f__recpos=0;
73 f__curunit = &f__units[a->ciunit];
74 if(a->ciunit>MXUNIT || a->ciunit<0)
75 err(a->cierr,101,"startchk");
76 if(f__curunit->ufd==NULL && fk_open(DIR,FMT,a->ciunit))
77 err(a->cierr,104,"dfe");
78 f__cf=f__curunit->ufd;
79 if(!f__curunit->ufmt) err(a->cierr,102,"dfe");
80 if(!f__curunit->useek) err(a->cierr,104,"dfe");
83 err(a->cierr,130,"dfe");
84 (void) fseek(f__cf,(long)f__curunit->url * (a->cirec-1),SEEK_SET);
89 integer s_rdfe(a) cilist *a;
91 integer s_rdfe(cilist *a)
95 if(f__init != 1) f_init();
98 if(n=c_dfe(a))return(n);
99 if(f__curunit->uwrt && f__nowreading(f__curunit))
100 err(a->cierr,errno,"read start");
104 f__dorevert = f__donewrec = y_err;
106 if(pars_f(f__fmtbuf)<0)
107 err(a->cierr,100,"read start");
112 integer s_wdfe(a) cilist *a;
114 integer s_wdfe(cilist *a)
118 if(f__init != 1) f_init();
121 if(n=c_dfe(a)) return(n);
122 if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
123 err(a->cierr,errno,"startwrt");
128 f__donewrec = y_newrec;
130 if(pars_f(f__fmtbuf)<0)
131 err(a->cierr,100,"startwrt");