4.4BSD/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);
}