usr/src/usr.bin/f77/libI77/wdfe.c

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * This module is believed to contain source code proprietary to AT&T.
 * Use and redistribution is subject to the Berkeley Software License
 * Agreement and your Software Agreement with AT&T (Western Electric).
 */

#ifndef lint
static char sccsid[] = "@(#)wdfe.c      5.2 (Berkeley) 4/12/91";
#endif /* not lint */

/*
 * write direct formatted external i/o
 */

#include "fio.h"

extern int w_ed(),w_ned();
int y_putc(),y_wnew(),y_tab();

LOCAL char wdfe[] = "write dfe";

s_wdfe(a) cilist *a;
{
        int n;
        reading = NO;
        if(n=c_dfe(a,WRITE,wdfe)) return(n);
        curunit->uend = NO;
        if(!curunit->uwrt && ! nowwriting(curunit)) err(errflag, errno, wdfe)
        putn = y_putc;
        doed = w_ed;
        doned = w_ned;
        dotab = y_tab;
        dorevert = doend = donewrec = y_wnew;
        if(pars_f()) err(errflag,F_ERFMT,wdfe)
        fmt_bg();
        return(OK);
}

e_wdfe()
{
        en_fio();
        return(OK);
}

LOCAL
y_putc(c)
{
        if(curunit->url!=1 && recpos++ >= curunit->url) err(errflag,F_EREREC,wdfe)
        putc(c,cf);
        return(OK);
}

LOCAL
y_wnew()
{       if(curunit->url != 1)
        {       if(reclen > recpos)
                {       fseek(cf,(long)(reclen-recpos),1);
                        recpos = reclen;
                }
                while(recpos < curunit->url) (*putn)(' ');
                recnum++;
                recpos = reclen = cursor = 0;
        }
        return(OK);
}