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Annotation of 43BSD/usr.lib/libI77/rsfe.c, revision 1.1

1.1     ! root        1: /*
        !             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.
        !             5:  *
        !             6:  *     @(#)rsfe.c      5.2     7/30/85
        !             7:  */
        !             8: 
        !             9: /*
        !            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;
        !            23:        sequential = YES;
        !            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: }

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