| #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"); |
| } |
| #ifdef KR_headers |
| y_putc(c) |
| #else |
| y_putc(int c) |
| #endif |
| { |
| f__recpos++; |
| if(f__recpos <= f__curunit->url || f__curunit->url==1) |
| putc(c,f__cf); |
| else |
| err(f__elist->cierr,110,"dout"); |
| return(0); |
| } |
| y_rev(Void) |
| { /*what about work done?*/ |
| if(f__curunit->url==1 || f__recpos==f__curunit->url) |
| return(0); |
| while(f__recpos<f__curunit->url) |
| (*f__putn)(' '); |
| f__recpos=0; |
| return(0); |
| } |
| y_err(Void) |
| { |
| err(f__elist->cierr, 110, "dfe"); |
| } |
| |
| y_newrec(Void) |
| { |
| if(f__curunit->url == 1 || f__recpos == f__curunit->url) { |
| f__hiwater = f__recpos = f__cursor = 0; |
| return(1); |
| } |
| if(f__hiwater > f__recpos) |
| f__recpos = f__hiwater; |
| 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; |
| if(a->ciunit>MXUNIT || a->ciunit<0) |
| err(a->cierr,101,"startchk"); |
| f__curunit = &f__units[a->ciunit]; |
| 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 = y_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; |
| (void) en_fio(); |
| return(0); |
| } |
| integer e_wdfe(Void) |
| { |
| f__init = 1; |
| return en_fio(); |
| } |