projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 813dcd74 | 1 | /* |
| 161423a6 RE |
2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 813dcd74 | 5 | * |
| 089a8031 | 6 | * @(#)rsfe.c 5.2 %G% |
| 161423a6 RE |
7 | */ |
| 8 | ||
| 9 | /* | |
| 813dcd74 DL |
10 | * read sequential formatted external |
| 11 | */ | |
| 12 | ||
| 13 | #include "fio.h" | |
| 14 | ||
| 15 | extern int rd_ed(),rd_ned(); | |
| 16 | int x_rnew(),x_getc(),x_tab(); | |
| 17 | ||
| 18 | LOCAL char rsfe[] = "read sfe"; | |
| 19 | ||
| 20 | s_rsfe(a) cilist *a; /* start */ | |
| 21 | { int n; | |
| 22 | reading = YES; | |
| 089a8031 | 23 | sequential = YES; |
| 813dcd74 DL |
24 | if(n=c_sfe(a,READ,SEQ,rsfe)) return (n); |
| 25 | if(curunit->url) err(errflag,F_ERNOSIO,rsfe) | |
| 26 | if(curunit->uwrt && ! nowreading(curunit)) err(errflag, errno, rsfe) | |
| 27 | getn= x_getc; | |
| 28 | doed= rd_ed; | |
| 29 | doned= rd_ned; | |
| 30 | donewrec = dorevert = doend = x_rnew; | |
| 31 | dotab = x_tab; | |
| 32 | if(pars_f()) err(errflag,F_ERFMT,rsfe) | |
| 33 | fmt_bg(); | |
| 34 | return(OK); | |
| 35 | } | |
| 36 | ||
| 37 | LOCAL | |
| 38 | x_rnew() /* find next record */ | |
| 39 | { int ch; | |
| 40 | if(curunit->uend) | |
| 41 | return(EOF); | |
| 42 | while((ch=getc(cf))!='\n' && ch!=EOF); | |
| 43 | if(feof(cf)) | |
| 44 | { curunit->uend = YES; | |
| 45 | if (recpos==0) return(EOF); | |
| 46 | } | |
| 47 | cursor=recpos=reclen=0; | |
| 48 | return(OK); | |
| 49 | } | |
| 50 | ||
| 51 | LOCAL | |
| 52 | x_getc() | |
| 53 | { int ch; | |
| 54 | if(curunit->uend) return(EOF); | |
| 55 | if((ch=getc(cf))!=EOF && ch!='\n') | |
| 56 | { recpos++; | |
| 57 | return(ch); | |
| 58 | } | |
| 59 | if(ch=='\n') | |
| 60 | { ungetc(ch,cf); | |
| 61 | return(ch); | |
| 62 | } | |
| 63 | if(feof(cf)) curunit->uend = YES; | |
| 64 | return(EOF); | |
| 65 | } | |
| 66 | ||
| 67 | e_rsfe() | |
| 68 | { int n; | |
| 69 | n=en_fio(); | |
| 70 | fmtbuf=NULL; | |
| 71 | return(n); | |
| 72 | } |