2 inputlevel - current input level
8 return nonnegative integer
11 This function returns the input level at which it is called.
12 When calc starts, it is at level zero. The level is increased
13 by 1 each time execution starts of a read file command or a call to
14 eval(S) for some expression S which evaluates to a string. It
15 decreases by 1 when a file being read reaches EOF or a string
16 being eval-ed reaches '\0', or earlier if a quit statement is
17 encountered at top calculation-level in the flle or string. It
18 decreases to zero if an abort statement is encountered at any
19 function-level in the file or string. If a quit or abort
20 statement is encountered at top calculation-level at top input-level,
23 Zero input level is also called top input level; greater values
24 of inputlevel() indicate reading at greater depths.
36 read, eval, quit, abort, calclevel
38 ## Copyright (C) 1999 Landon Curt Noll
40 ## Calc is open software; you can redistribute it and/or modify it under
41 ## the terms of the version 2.1 of the GNU Lesser General Public License
42 ## as published by the Free Software Foundation.
44 ## Calc is distributed in the hope that it will be useful, but WITHOUT
45 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
46 ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
47 ## Public License for more details.
49 ## A copy of version 2.1 of the GNU Lesser General Public License is
50 ## distributed with calc under the filename COPYING-LGPL. You should have
51 ## received a copy with calc; if not, write to Free Software Foundation, Inc.
52 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
54 ## @(#) $Revision: 30.1 $
55 ## @(#) $Id: inputlevel,v 30.1 2007/03/16 11:10:42 chongo Exp $
56 ## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/inputlevel,v $
58 ## Under source code control: 1999/10/31 06:01:21
59 ## File existed as early as: 1999
61 ## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
62 ## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/