mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
61 lines
2.0 KiB
Plaintext
61 lines
2.0 KiB
Plaintext
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
|
|
none - XXX - is this correct?
|
|
|
|
LINK LIBRARY
|
|
none - XXX - is this correct?
|
|
|
|
SEE ALSO
|
|
fscan, strscan, fscanf, strscanf, scanf, printf, fprintf
|
|
|
|
## Copyright (C) 1999 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: 29.2 $
|
|
## @(#) $Id: scan,v 29.2 2000/06/07 14:02:33 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/
|