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63 lines
2.1 KiB
Plaintext
63 lines
2.1 KiB
Plaintext
NAME
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inputlevel - current input level
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SYNOPSIS
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inputlevel()
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TYPES
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return nonnegative integer
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DESCRIPTION
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This function returns the input level at which it is called.
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When calc starts, it is at level zero. The level is increased
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by 1 each time execution starts of a read file command or a call to
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eval(S) for some expression S which evaluates to a string. It
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decreases by 1 when a file being read reaches EOF or a string
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being eval-ed reaches '\0', or earlier if a quit statement is
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encountered at top calculation-level in the flle or string. It
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decreases to zero if an abort statement is encountered at any
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function-level in the file or string. If a quit or abort
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statement is encountered at top calculation-level at top input-level,
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calc is exited.
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Zero input level is also called top input level; greater values
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of inputlevel() indicate reading at greater depths.
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EXAMPLE
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n/a
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LIMITS
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none
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LINK LIBRARY
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none
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SEE ALSO
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read, eval, quit, abort, calclevel
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.2 $
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## @(#) $Id: inputlevel,v 29.2 2000/06/07 14:02:33 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/inputlevel,v $
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##
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## Under source code control: 1999/10/31 06:01:21
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## File existed as early as: 1999
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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