NAME
    fgetfield - read the next word from a file

SYNOPSIS
    fgetfield(fs)

TYPES
    fs		file stream open for reading

    return	string, null or error value

DESCRIPTION
    If characters cannot be read from the file, an error value is returned.

    Otherwise starting at the current file position, any whitespace
    characters are skipped.  If the reading reaches end-of-file, the
    null value is returned.  If non-whitespace is encountered, formation
    of a string begins, continuing until whitespace of '\0' or end-of-file
    is reached.	 The returned value is this string (terminated as usual
    by a null character).  After the operation, the file position will
    be immediately after the first whitespace character of '\0' or at
    end-of-file.

EXAMPLE

    ; f = fopen("/tmp/junk", "w")
    ; fputs(f, " Alpha Beta \n")
    ; freopen(f, "r")
    ; fgetfield(f)
	"Alpha"
    ; fgetfield(f)
	"Beta"
    ; fgetfield(f)

    ; freopen(f, "w")
    ; fputstr(f, " Alpha  ", "Beta")
    ; freopen(f, "r")
    ; fgetfield(f)
	"Alpha"
    ; fgetfield(f)
	""
    ; fgetfield(f)
	"Beta"

LIMITS
    none - XXX - is this correct?

LINK LIBRARY
    none - XXX - is this correct?

SEE ALSO
    fgetstr, fputstr, fgets, fputs, fopen, files, fprintf

## Copyright (C) 1999-2006  Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.4 $
## @(#) $Id: fgetfield,v 29.4 2006/06/10 12:28:10 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/fgetfield,v $
##
## Under source code control:	1996/04/30 03:05:17
## File existed as early as:	1996
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/