NAME
   scan - scan standard input for possible assignment to variables

SYNOPSIS
   scan(x_1, x_2, ..., x_n)

TYPES
    x_1, x_2, ...	any

    return		integer

DESCRIPTION
   When input is from a terminal, execution is halted and input is read
   until a newline is entered.	Strings of non-whitespace characters
   are evaluated in succession and if the corresponding x_i is an lvalue,
   the resulting value is assigned to x_i.  If the number of strings
   read exceeds n, only the first n strings are evaluated.  If the number
   of strings is less than n, the later x_i are ignored.

EXAMPLE
    ; global a, b, c, d;
    ; scan(a, 0, c, d)
    ; 2+3    b=a^2	  3+4i	   3+"a"
    ; print a,b,c,d
	5 25 3+4i Error 3

LIMITS
    The number of arguments is not to exceed 1024.

LINK LIBRARY
    int scanfstr(char *str, char *fmt, int count, VALUE **vals);

SEE ALSO
    fscan, strscan, fscanf, strscanf, scanf, printf, 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.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: scan,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/scan,v $
##
## Under source code control:	1996/04/30 03:05:18
## 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/
